JP2019212562A - Battery unit and electronic device - Google Patents

Abstract

To provide a battery unit 7 that is supported by an electronic device with a sufficient mechanical strength while minimizing an area occupied by a support structure for mounting the battery unit 7 on the electronic device.SOLUTION: A battery unit 7 housed in a housing portion 4 formed by a device body 2 and a lid portion 3 covering the device body includes a battery body 13, a battery case 10 surrounding the battery body 13, a flexible portion 9 installed in the battery case 10, and a first connecting portion 6 installed at a position facing the position where the flexible portion 9 is installed across the battery body 13, and the first connection portion 6 is connected to a second connection portion 8 installed in the housing portion 4, and the flexible portion 9 is in contact with the lid portion 3.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a battery unit and an electronic device including the battery unit, and more particularly to a structure for fitting and holding a connector for mounting the battery unit on the electronic device.

  In recent years, portable electronic devices such as various portable terminals have been reduced in size and weight. In order to meet the demands for downsizing and weight reduction, downsizing of individual parts such as mounted semiconductor elements and electronic components has been promoted. Along with this, in order to realize high-density mounting commensurate with the miniaturization of these components, the extra space between the mounted components has been minimized.

  Moreover, the portable electronic device is equipped with a battery unit that can operate the electronic device for a certain period of time, and is electrically connected to the electronic device via a connector. And the battery unit belongs to a heavy category among the components mounted on such an electronic device, and supports its weight while maintaining an electrical connection with the electronic device via the connector. In order to achieve this, a support structure having sufficient mechanical strength is essential.

  However, if the support structure of the battery unit having sufficient mechanical strength is to be configured with, for example, a screw fixing structure, it is necessary to occupy an area for installing the fixing structure around the battery unit. It becomes. In particular, in the vicinity of the connector, it is required to support a battery unit that is a heavy object while maintaining stable electrical contact of the connector, and therefore it is essential to install a plurality of fixing structures around the connector. In this way, it is essential to install a fixed structure at a specific position, which is contrary to the mounting technology of electronic devices that are intended to be miniaturized by minimizing the extra space between components. It becomes an obstacle.

  The present invention has been made in view of such a situation, and an object of the present invention is to minimize an occupied area of a support structure for mounting a battery unit on an electronic device and to have sufficient mechanical strength. An object of the present invention is to provide a battery unit supported by an electronic device and an electronic device including the same.

  A battery unit according to a first aspect of the present invention is a battery unit housed in a housing portion formed by a device main body and a lid portion covering the device main body, the battery main body, and a battery case surrounding the battery main body. A flexible portion installed in the battery case, and a first connection portion installed at a position opposite to the position where the flexible portion is interposed with the battery body interposed therebetween. The part is connected to a second connection part installed in the storage part, and the flexible part is in contact with the lid part.

  According to the second aspect of the present invention, in the first aspect, the flexible part has elasticity, and when the cover part covers the apparatus main body to form the storage part, the cover part has the flexible part. The flexible part that is pressed down is a battery unit that holds the battery case and the battery body between the lid part and the second connection part with its elasticity.

  According to the third aspect of the present invention, in the first aspect or the second aspect, the flexible portion constitutes a part of the battery case.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the battery case is located at a position different from the position where the flexible portion is installed. It further has a support part which supports the storage part.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the control board further includes a control board and a control board support part housed in the battery case, The first connection part is fixed to the control board and protrudes outward from the opening of the battery case through the control board support part.

  According to a sixth aspect of the present invention, in the fifth aspect, the apparatus further comprises a substrate pressing portion installed on the inner surface of the battery case, and the flexible portion presses the battery body and the battery case with its elasticity. The pressed battery case presses the control board via the control board pressing part, and the pressed control board presses the first connection part to the second connection part.

  According to a seventh aspect of the present invention, in the sixth aspect, the portion of the battery case where the control board pressing portion is installed has a convex shape in the direction in which the battery case presses the control board pressing portion. .

  According to an eighth aspect of the present invention, in any one of the first to seventh aspects, each of the first connection part and the second connection part comprises a connector, and the battery unit. Are housed in the housing portion by fitting and holding these connectors.

  According to the electronic device of the ninth aspect of the present invention, the battery unit is housed in a housing portion formed by the device body and a lid that covers the device body, and the battery body and the battery surrounding the battery body. A case, a flexible part installed in the battery case, and a first connection part installed at a position facing the battery body with respect to the position where the flexible part is installed. A battery unit that contacts the lid, a mother board that is housed in the housing part, a mother board support part, and a second connection part, and the mother board is supported by the apparatus body via the mother board support part Then, the second connection part is installed on the mother board, and the battery unit is mounted on the mother board by connecting the first connection part of the battery unit to the second connection part.

  According to the battery unit of the present invention, the first connection part, for example, a connector, which is installed at the bottom of the battery unit, and the connector of the electronic device are coupled to each other to be electrically connected to the electronic device. Yes. By pressing the flexible part installed on the opposite side across the connector and the battery body with the casing of the electronic device, the fitted connector is pressed and held. The weight of can be pinched.

  Thus, it is possible to minimize an area occupied by a support structure for mounting a battery unit on an electronic device, and to provide a battery unit supported by the electronic device with sufficient mechanical strength, and an electronic device including the battery unit. Can do.

The disassembled perspective view of the electronic device carrying the battery unit of one Embodiment of this invention. The perspective view before the cover part attachment of the electronic device carrying the battery unit of one Embodiment of this invention. The fragmentary perspective view of the battery unit of one Embodiment of this invention. Sectional drawing before cover part attachment of line segment AA 'of FIG. 2 of one Embodiment. Sectional drawing after lid part attachment of line segment AA 'of FIG. 2 of one Embodiment. Sectional drawing after the cover part attachment of line segment AA 'of FIG. 2 of the modification of one Embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded perspective view of an electronic device in which a battery unit according to an embodiment of the present invention is mounted. FIG. 2 is a perspective view in which the lid portion 3 of the electronic device is omitted.

  The apparatus main body 2 has a rectangular bottom surface and four side surfaces perpendicular to the bottom surface along each side of the bottom surface, and the upper portion of the device body 2 is opened in a shape substantially the same as the bottom surface. is there. The lid portion 3 has a rectangular portion having the same shape as the bottom surface of the device main body 2, covers the opening of the device main body 2 with the rectangular portion, and forms a storage portion 4 having a rectangular parallelepiped shape therein. .

  The storage unit 4 stores a mother substrate 5 and a battery unit 7 having a first connection unit 6 (see FIG. 4A) formed on the bottom surface thereof. The mother substrate 5 is fixed to the apparatus main body 2 by, for example, screws, and a second connection portion 8 for electrical connection with the battery unit 7 is installed on the upper surface thereof.

  The battery unit 7 is mounted on the mother substrate 5 by fitting the first connection portion 6 on the bottom surface thereof to the second connection portion 8.

  In FIG. 3, the external appearance which looked at a part of battery unit 7 was shown. The battery unit 7 includes a battery case 10 surrounding the battery body 13 (see FIG. 4A), and a flexible portion 9 having elasticity is installed on the upper surface thereof. And the 1st connection part 6 is installed in the position which mutually opposes on both sides of the battery main body 13 with respect to the position where the flexible part 9 was installed.

  The battery unit 7 is stored so that the flexible portion 9 and the lid portion 3 are in contact with each other when the lid portion 3 covers the opening of the apparatus body 2 and the storage portion 4 is formed therein. Yes. Further, the battery case 10 may be provided with a support portion 12 for fixing to the mother substrate 5 at a position different from the first connection portion 6 in order to increase the strength for supporting the battery unit 7. .

  4A is a cross-sectional view taken along line AA ′ in FIG. The battery unit 7 is surrounded by a battery case 10 that covers an upper surface portion, a side surface portion, and a bottom surface portion of the battery body 13. The battery case 10 has a flexible portion 9 that protrudes outward from the upper surface portion of the battery body 13 in an inclined shape.

  The battery case 10 may be formed by molding a resin, for example. The flexible portion 9 is formed of, for example, a resin spring, and may constitute a part of the battery case 10 as illustrated in FIG. 4A or may be integrally formed with the battery case 10.

  The flexible portion 9 may be an elastic body made of a metal material such as a leaf spring or a coil spring, or an elastic body made of rubber, and can be separately installed on the battery case 10. The flexible portion 9 may be formed of any one of an elastic body made of resin, an elastic body made of metal, and an elastic body made of rubber, or a combination of a plurality of them. May be.

  Furthermore, the battery unit 7 may further include a control board 11 and a control board support portion 15 housed in the battery case 10. The control board 11 may be fixed to the battery case 10 via the control board support part 15. The battery main body 13 is mounted on the control board 11, and various electronic components for controlling the operation of the battery unit 7 may be mounted on the control board 11.

  The first connection portion 6 is fixed to the control board 11 and protrudes to the outside of the battery case 10 through an opening 17 installed on the bottom surface of the battery case 10. The protruding portion is fitted to the second connection portion 8 installed on the mother board 5 to support the battery unit 7 with the mother board 5 and to electrically connect the control board 11 and the mother board 5. ing. The mother substrate 5 is fixed to the apparatus main body 2 via the mother substrate support 16.

  FIG. 4B shows a cross-sectional view when the lid portion 3 that covers the apparatus main body 2 is further installed in addition to the cross-sectional view of the line segment AA ′ in FIG. 2 shown in FIG. 4A. When the lid 3 covers and closes the upper opening of the apparatus main body 2, the storage section 4 surrounded by the lid 3 and the apparatus main body 2 is formed. At this time, the lid 3 is brought into contact with the flexible portion 9, and further, the flexible portion 9 is projected outward from the storage portion 4 so that the flexible portion 9 is pushed down to a predetermined position. Must be installed.

  When the flexible portion 9 is pressed, the battery body 13 is pressed with its elasticity. Here, the pressed battery body 13 presses the control board 11. Then, the control board 11 presses and holds the first connection portion 6 fitted to the second connection portion 8 by the pressed stress.

  For example, if the 1st connection part 6 and the 2nd connection part 8 are comprised with a connector, connectors can be inserted and fitted, and this fitted part can be further pressed and hold | maintained. For this reason, the connector not only electrically connects the control board 11 to the mother board 5 but also supports the weight of the battery unit 7 by sandwiching it between the lid 3 and the second connection part 8. Can do. This eliminates the need for a support structure for supporting the weight of the battery unit 7 in the vicinity of the connector.

  In addition, since the connector is pressed and held, there is no need for, for example, a stopper structure for holding and fixing the connector while preventing it from falling off as in a general connector. Accordingly, since it is not necessary to operate the stopper structure of the connector with the battery unit 7 installed, the connector may be completely covered between the battery unit 7 and the mother board 5.

  As described above, according to the battery unit of the embodiment of the present invention, it is not necessary to install a structure around the battery unit 7 only to support the weight thereof. It is possible to minimize the extra space between the components installed around. Therefore, the battery unit 7 is suitable for mounting on an electronic device that is miniaturized by high-density mounting.

  FIG. 4C shows a modification of the cross-sectional view taken along line AA ′ of FIG. 2 shown in FIG. 4B. In this modified example, a further flexible part 18 made of an elastic body is installed on the flexible part 9, and a control board pressing part 14 is installed on the inner surface of the battery case 10. Is in contact with the control board 11.

  Since the additional flexible portion 18 is added, when the lid portion 3 covers and closes the upper opening of the apparatus main body 2, the lid portion 3 first comes into contact with the additional flexible portion 18. And the cover part 3 continues pressing down the further flexible part 18, the whole flexible part 9 is pressed against the battery main body 13, and the battery main body 13 is pressed. At this time, due to the elasticity of the flexible portion 18, the distal end portion of the flexible portion 9 in contact with the end portion of the battery case 10 presses the battery case 10 itself.

  Here, since the control board pressing part 14 is in contact with the control board 11, when the tip of the flexible part 9 presses the end part of the battery case 10, the pressed battery case 10 This is transmitted to the control board 11 via the unit 14. Then, the control board 11 presses and holds the first connection portion 6 fitted to the second connection portion 8.

  The portion of the battery case 10 where the control board pressing portion 14 is formed may be convex toward the direction in which the control board pressing portion 14 is pressed. Due to this convex shape, deformation due to the stress of the battery case 10 is reduced, and the stress is efficiently transmitted to the control board 11.

DESCRIPTION OF SYMBOLS 1 Electronic device 2 Apparatus main body 3 Cover part 4 Storage part 5 Mother board 6 1st connection part 7 Battery unit 8 2nd connection part 9 Flexible part 10 Battery case 11 Control board 12 Support part 13 Battery body 14 Control board press Part 15 Control board support part 16 Mother board support part 17 Opening part 18 Further flexible part

Claims (9)

A battery unit housed in a housing portion formed by a device body and a lid portion covering the device body,
A battery body;
A battery case surrounding the battery body;
A flexible part installed in the battery case;
A first connecting part installed at a position facing the battery body with respect to the position where the flexible part is installed,
The first connection portion is connected to a second connection portion installed in the storage portion, and the flexible portion is in contact with the lid portion.   The flexible part has elasticity, and when the cover part covers the apparatus main body to form the storage part, the cover part presses the flexible part, and the pressed flexible part is The battery unit according to claim 1, wherein the battery case and the battery main body are sandwiched between the lid part and the second connection part with the elasticity.   The battery unit according to claim 1, wherein the flexible part forms a part of the battery case.   The battery according to any one of claims 1 to 3, wherein the battery case further includes a support part that supports the battery case in the storage part at a position different from a position where the flexible part is installed. unit. A control board and a control board support unit housed in the battery case;
The control board is supported by the battery case via the control board support part,
5. The battery unit according to claim 1, wherein the first connection portion is fixed to the control board and protrudes outward from an opening of the battery case. 6. A control board pressing part installed on the inner surface of the battery case;
When the flexible part presses the battery body and the battery case with its elasticity, the pressed battery case presses the control board via the control board pressing part, and the pressed control board is the first The battery unit according to claim 5, wherein one connection portion is pressed against the second connection portion.   The battery unit according to claim 6, wherein a portion of the battery case where the control board pressing portion is installed has a convex shape toward a direction in which the battery case presses the control board pressing portion.   The first connection part and the second connection part are both formed of connectors, and the battery unit is housed in the housing part by fitting and holding these connectors. The battery unit according to any one of the above. A battery unit housed in a housing part formed by a device body and a lid that covers the device body, the battery body, a battery case surrounding the battery body, and a flexible part installed in the battery case And a first connection portion installed at a position facing the position where the flexible portion is installed across the battery body, wherein the flexible portion is in contact with the lid portion. Unit,
A mother board stored in the storage part, a mother board support part, and a second connection part;
The mother substrate is supported by the apparatus main body through the mother substrate support part,
The second connection portion is installed on the mother board,
An electronic apparatus in which the battery unit is mounted on the mother board by connecting the first connection portion of the battery unit to the second connection portion.

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