JP5147193B2 - Battery pack - Google Patents

Description

  The present invention relates to a battery pack in which a cartridge-like battery is detachably stored.

Among video cameras, a large-sized camera for business use or professional use used for a TV camera or the like has a plurality of battery cells or battery cells between a rear cover and a top cover as shown in Patent Document 1, for example. The packs and substrates that are combined are stored so as to sandwich them, and the top cover and the rear cover are fixed by welding or bonding. For example, there are those in which the two divided covers are pressurized and heated by ultrasonic waves to melt and solidify and join. The battery pack formed in this way is characterized by a simple structure, a small size and a strong structure, and therefore can be manufactured at a low cost, as compared with a case where the covers are fixed with screws.
International Publication WO01 / 073869

  However, if the covers are joined together by ultrasonic welding or the like, it can be strong, but when the built-in battery cell has a problem, the cover cannot be opened and is relatively expensive. There was a need for something that could be easily maintained.

  The present invention pays attention to the development of a battery having a cartridge shape with a built-in cell, and not only can a plurality of such battery cartridges be accommodated to increase the capacity but also the maintenance such as replacement can be easily performed. The purpose is to provide a pack.

  A battery pack according to the present invention includes a housing having one of four side surfaces opened, a lid for opening and closing the opened side of the housing, and a plurality of batteries attached to and detached from the housing. A battery storage unit that can be divided into a top cover having an open side and a rear cover on which a control board is mounted, and can be divided into upper and lower parts by a partition plate to store cartridge-like batteries. Forming and configuring. The open side of the housing is opened and closed by opening and closing the lid so that a cartridge-like battery can be attached and removed. With such a structure, not only can the capacity be increased by using a plurality of batteries, but also maintenance such as replacement can be easily performed.

  In the battery pack of the present invention, a control board is mounted on the rear cover, a board cover for covering the control board is provided, and a protrusion that protrudes upward and receives the partition plate is provided on the board cover. Normally, this type of battery pack has a self-capacitance output circuit and a self-capacitance output terminal for outputting the remaining capacity and displaying it on a finder or the like of a video camera. A board for controlling such data output etc. Is covered with a substrate cover so that it is not affected by other components inside the housing.

In addition the battery pack of the present invention, the edge of the open- side surface of the top cover, provided with a groove-like portion which can be removably mounted by linear slides along the lid in a circumferential direction of said open side, the edge facing the open discharge side surface of the rear cover, providing the small projections to be fitted to recess formed in the lid. It is easy to move the lid along the edge of the open side surface, to easily position it, and to prevent it from coming off.

  Moreover, in the battery pack of this invention, the tab part for extraction is erected on the said open side surface of the said partition board. The release of the battery cartridge can be controlled by this tab portion. For example, when the tab portion is directed to the rear cover side, the movement of the battery cartridge mounted on the substrate cover is normally restricted so that it can be freely moved only when the lid is removed.

  In the battery pack of the present invention, the partition plate is provided with a positioning projection that abuts against the inner surface of the top surface of the top cover. The partition plate is firmly positioned by the projection and the projection of the substrate cover described above, and the storage space for the battery cartridge inside the housing is properly defined.

  Furthermore, in the battery pack of the present invention, an electrical / mechanical connection part to another device such as a TV camera is provided on the back surface and one side surface of the rear cover, and a protrusion of the other device such as the TV camera is provided. In order to avoid interference, slopes are provided on both side edges of the rear surface of the rear cover. Other devices such as a TV camera have various protrusions or the like due to the convenience of the manufacturer of the device, but in particular, protrusions that restrict the side position of the battery pack hinder the installation of other companies' devices. In many cases, the above-described slope portion increases the number of situations where this can be avoided.

  The battery pack of the present invention can easily mount and remove a cartridge-like battery, and can increase the capacity by using a plurality of batteries, and can easily perform operations such as attachment / detachment and replacement of batteries. There is an effect.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of an embodiment of a battery pack according to the present invention. The battery pack 1 according to the present embodiment mainly includes a top cover 2 and a rear cover 3 that constitute a housing having one of the four circumferential side surfaces opened, and a lid that opens and closes the opened side surface 4 of the housing constituted by these. And a plurality of cartridge-like batteries (hereinafter referred to as battery cartridges) 6a and 6b that are detachably mounted in a housing constituted by the top cover 2 and the rear cover 3.

  That is, the housing is divided into two parts: a top cover 2 having an open side 4 and a rear cover 3 on which a control board 7 is mounted. In addition, the inside of the top cover 2 is divided into two parts by a partition plate 8. The battery storage portions 9a and 9b that can store the battery cartridges 6a and 6b are respectively formed (see FIGS. 4, 5, and 7). For this reason, the open side 4 of the housing can be opened and closed by opening and closing the slide cover 5, and the battery cartridges 6a and 6b can be individually attached and removed, and not only can the capacity be increased by using a plurality of batteries. Maintenance such as replacement can be easily and easily performed.

  Further, the control board 7 is mounted on the rear cover 3 as described above, and the control board 7 is covered with the board cover 10. The substrate cover 10 is provided with a pair of protruding wall portions 11 and 11 that protrude upward and receive the lower surface of the partition plate 8. Of course, the positions to be provided are positions corresponding to both ends of the open side surface 4.

  The control board 7 is usually used with this type of battery pack to control the remaining capacity to be output and displayed on the finder of the video camera. For this purpose, a self-capacitance output circuit or a self-capacitance output terminal is used. However, by covering the substrate 7 for controlling such data output with the substrate cover 10, it is not affected by other components inside the housing.

  A release tab 12 for taking out is provided on the edge of the partition plate 8 on the open side surface 4 side. The release tab 12 is provided at the edge of the partition plate 8 so as to be pivotable in the vertical direction in the figure, so that the release of the battery cartridges 6a and 6b, particularly the battery cartridge 6b on the lower side in the figure can be controlled. That is, for example, when the release tab 12 is normally directed to the rear cover 3 side, and the battery cartridge 6b is mounted, the release tab 12 is lifted and inserted, so that the lower battery cartridge 6b mounted on the board cover 10 is inserted. Is normally restricted, and can be moved freely only when the slide cover 5 is removed.

  Further, the partition plate 8 is provided with a pair of positioning projecting wall portions 13 and 13 that abut against the inner surface of the top surface of the top cover 2. The partition plate 8 is firmly positioned in the housing by the projecting wall portion 13 and the projecting wall portion 11 of the substrate cover 10, and the battery storage portions 9a and 9b of the battery cartridges 6a and 6b inside the housing are properly defined.

  Further, although not shown in detail on the edge facing the open side surface 4 of the top cover 2 constituting the housing, a groove that can be detached by sliding the slide cover 5 linearly along the outer peripheral surface direction. And a protrusion 15 that can be engaged with the groove 14 at the top edge of the slide cover 5 and the leading edge when operating in the closing direction, and the open side surface 4 of the rear cover 3. On the facing edge, there is provided a recess 17 that can be fitted with a small protrusion 16 provided on the lower edge of the slide cover 5 in the figure (see FIG. 7). For this reason, the slide cover 5 can be easily moved along the edge of the open side surface 4 and can be easily positioned, and it is also difficult to come off. In the figure, reference numeral 18 denotes a lock screw, which is provided with a bent portion 19 at the leading edge when the slide cover 5 is operated in the closing direction, and a corresponding portion 20 of the top cover 2 is cut out and recessed. A lock screw receiver 21 is provided at the edge, and the slide cover 5 is fixed by screwing the lock screw 18 to the lock screw receiver 21.

  The surface 22 of the top cover 2 opposite to the open side surface 4 is provided with an LED display 23 for displaying a remaining amount and a push button 24 for performing a remaining amount display check operation.

  A receiving plate 25 such as a substrate to be described later is erected along the inner surface side of the surface 22 on the edge opposite to the open side surface 4 of the rear cover 3, and the LED substrate is disposed on the surface 22 side. 26, an LED board guide 27, and a push button receiver 28, and a pair of battery contact connectors 29, 29 are provided on the opposite side of the surface 22, that is, toward the inside of the housing. A boss 30 for positioning the LED board guide 27 is provided at a substantially central portion. In the figure, reference numeral 31 denotes a hook, which is provided to restrict the pushing position of the upper battery cartridge 6a.

  Further, in the battery pack 1 of the present embodiment, an electrical / mechanical connection portion (V-type lock plate 32, terminal portion) to other devices such as a TV camera is provided on the rear surface of the rear cover 3 and the side surface 3a which is the bottom surface in the drawing. 33) and slopes 34 are provided on both side edges of the rear surface of the rear cover 3 in order to avoid interference with projections of other devices such as a TV camera. The electrical / mechanical connection part to other devices such as a TV camera is a well-known mechanism, and the description thereof is omitted.

  The slope portion 34 is provided about half of the back surface of the rear cover 3, and is wide on the side surface 3 a side as the bottom surface, and becomes narrower toward the center portion in the longitudinal direction of the battery pack 1. The shape disappears at the part. Other devices such as a TV camera have various protrusions or the like due to the convenience of the manufacturer of the device, but in particular, protrusions that restrict the side position of the battery pack hinder the installation of other companies' devices. In many cases, however, by providing the slope portions 34 on both side edges of the rear cover 3 as described above, situations where this can be avoided increase. Of course, the form of the slope part 34 can be changed suitably.

  Further, the shape of the battery pack 1 of this embodiment will be described with reference to FIG. 2. The upper edges, the side surfaces 22 and the slide cover 5 on both sides of the top cover 2 are slightly curved and recessed only in the vicinity of the center in the longitudinal direction. The shape of the recessed portion 35 is a parabolic shape as shown in FIG. 1, but may be an appropriate shape. This is because when this type of battery pack 1 is gripped by a hand, it is easier to grip the battery pack 1 than when it is formed by a simple plane. A plurality of anti-slip ridges 36 are provided when gripping the recess 35 so as to straddle it. A concave portion may be provided in place of the protrusion 36.

  In addition, although the upper surface of the top cover 2 is formed in a truncated pyramid shape with a low height as shown in the drawing, this is to make it easier to grip the battery pack 1.

  The present invention is not limited to the examples described above and illustrated, and various modifications can be made without departing from the scope of the claims.

FIG. 1 is an exploded perspective view of a battery pack according to the present invention. FIG. 2 is a plan view of the battery pack according to the present invention. FIG. 3 is a rear view (A), a bottom view (B), and a side view (C) of the battery pack according to the present invention. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along the line BB in FIG. FIG. 6 is a perspective view of the battery pack according to the present invention with the slide cover removed. FIG. 7 is a perspective view of the battery cartridge removed from the state of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery pack 2 Top cover 3 Rear cover 3a Side surface used as the bottom face of the rear cover 3 Open side surface 5 Slide cover 6a, 6b Battery cartridge 7 Control board 8 Partition board 9a, 9b Battery storage part 10 Substrate cover 11 Projection wall part 12 Release tab DESCRIPTION OF SYMBOLS 13 Projection wall part for positioning 14 Groove-like part 15 Projection 16 Small projection part 17 Concave part 18 Lock screw 19 Bending part 20 The part corresponding to a bending part 21 Lock screw receiving 22 The surface on the opposite side to the open side surface of the top cover 2 23 LED display 24 Push button 25 Receiving plate 26 LED board 27 LED board guide 28 Push button receiver 29 Battery contact connector 30 Boss for positioning 31 Hook 32 V-type lock plate 33 Terminal part 34 Slope part 35 Recessed part 36 Non-slip protrusion Article

Claims (6)

A casing having one of the four circumferential sides open, a lid for opening and closing the opened side of the casing, and a plurality of batteries attached to and detached from the casing, the casing having a top having the open side The battery cover is formed in two parts: a cover and a rear cover on which the control board is mounted, and the top cover is divided into two parts by a partition plate to form a battery storage unit that can store a cartridge-like battery. Battery pack featured. 2. The battery pack according to claim 1, wherein a control board is mounted on the rear cover, a board cover that covers the control board is provided, and a protrusion that protrudes upward to receive the partition plate is provided on the board cover. A battery pack characterized by that. In the battery pack according to claim 2, the edge of the open- side surface of the top cover, provided with a groove-like portion which can be removably mounted by linear slides along the lid in a circumferential direction of said open side, said the edge facing the open discharge side surface of the rear cover, battery pack characterized by comprising providing a small projection and matable recess formed in the lid.
4. The battery pack according to claim 1, wherein a tab portion for taking out is erected on the open side surface side of the partition plate. 5. 5. The battery pack according to claim 2, wherein the partition plate is provided with a positioning protrusion that contacts the inner surface of the top surface of the top cover. 6. The battery pack according to claim 1, wherein an electrical / mechanical connection portion to another device such as a TV camera is provided on the back surface and one side surface of the rear cover, and the other device such as the TV camera is provided. In order to avoid interference with the protrusions, the battery pack is characterized in that slopes are provided on both side edges of the rear surface of the rear cover.