JP4569782B2 - Charger - Google Patents

Description

  The present invention relates to a charger for charging a rechargeable battery.

  2. Description of the Related Art Conventionally, a charger having an upper housing and a lower housing and in which a housing inner space is defined by the upper housing and the lower housing is known.

  FIG. 5 shows a side cross-sectional view of the charger, which includes an upper housing 51 and a lower housing 52, and the housing inner space is defined by the upper housing 51 and the lower housing 52.

  The upper housing 51 is provided with an opening, a terminal holder 53 is attached to the opening, and a charge / discharge terminal of the rechargeable battery is inserted. The terminal holder 53 into which the charging / discharging terminal is inserted is provided with a charging terminal 54.

However, in the above-described conventional charger, dust, foreign matter, and the like accumulate on the lower side of the inclined surface of the charging terminal 54, causing a short circuit of the terminal 54 .

Accordingly, the present invention is to discharge the dust and foreign substances flowing into the inclined surface below the charging terminal, and an object thereof is to provide a battery charger capable of preventing a short circuit of the charging terminals.

  In order to achieve the above object, according to the present invention, a terminal cover and a terminal block are attached to a housing, and the terminal block is a discharge for discharging dust and the like flowing into the terminal block from the inflow side opening. A charger is provided that is provided with a side opening.

  Here, it is preferable that the terminal block is inclined downward from the inflow side opening to the discharge side opening.

  The flow path preferably comprises an upper housing forming a terminal block and a housing.

  The terminal cover of the housing is preferably provided with at least one discharge opening.

  The inflow side opening is preferably an opening for exposing the charging terminal to the outside of the housing.

The housing has an upper housing and a lower housing, the upper housing, the direction of the charging terminal is slid in said upper housing said charging batteries for contacting the charging and discharging terminal of the rechargeable battery to the charging terminal preferably has a slide rail for guiding the charge discharge current terminals of said charging battery to.

  According to the charger of the first aspect of the present invention, since the terminal block is provided with the discharge side opening, it is possible to discharge dust, foreign matter, and the like flowing into the terminal block from the inflow side opening. . For this reason, it is possible to prevent a short circuit between the terminals without accumulation of dust and foreign matter between the terminals of the terminal holder.

Also, the terminal block, because of the inclined downwardly toward the inlet side opening to the discharge-side opening, the inlet-side opening and inflows to the internal terminal block from dust and foreign matter can be discharged naturally .

Also , since the housing terminal cover is provided with a discharge opening, dust and foreign matter discharged from the discharge side opening of the terminal block can be discharged from the terminal cover discharge opening to the outside of the terminal cover space. Can do.

Further , since the inflow side opening is an opening for exposing the charging terminal to the outside of the housing, the charging terminal can be exposed to the outside of the housing through the portion.

Furthermore, the housing has an upper housing and a lower housing, charging discharge electricity of the rechargeable battery is slid in the direction of the charging terminals in the upper housing rechargeable batteries for contacting the charging and discharging terminal of the battery to the charging terminal A slide rail for guiding the terminal is provided, and dust, foreign matter, and the like pushed by the tip of the rechargeable battery when the rechargeable battery is attached can be discharged out of the inner space.

  A charger according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the charger 1 includes an upper housing 10 and a lower housing 20, and the upper housing 10 and the lower housing 20 constitute an outer shell of the charger 1.

The lower housing 20 has a substantially rectangular parallelepiped shape with a bottom and an entire upper surface forming an opening. The upper housing 10 is configured to cover the opening of the lower housing 20, and in the substantially right half of FIG. 1A in the longitudinal direction of the opening that forms a substantially rectangular shape of the lower housing 20, rechargeable battery set section 11 sets the battery when charging the rechargeable battery is provided.

  The rechargeable battery set unit 11 is formed in the lower housing 20 in a direction from one of the long sides of the opening of the lower housing 20 to the other, that is, from the upper right direction to the lower left direction in FIG. 11A which inclines below which is the direction which approaches the direction. The inclined surface 11A extends from the upper right direction to the lower left direction in FIG. 2 to a predetermined position, and a terminal cover 13 described later is provided below the inclined surface 11A.

  As shown in FIG. 2 and the like, the terminal cover 13 has three through holes 12 a penetrating the inside of the terminal cover and the outside of the upper housing on the side wall constituting the terminal cover 13. The through hole 12a corresponds to a discharge opening.

  The inclined surface 11A has a slide rail 11C, and the slide rail 11C is formed integrally with the upper housing 10, and extends in parallel to the inclined surface 11A in a direction connecting the upper and lower sides of the inclined surface 11A. It has been. The slide rail 11C is charged by sliding the rechargeable battery rail (not shown) on the slide rail 11C in order to electrically connect the rechargeable battery charge terminal (not shown) to the charge terminal 36 (described later). It is comprised so that the charging / discharging terminal of a charging battery can be guide | induced to the direction of the terminal 36 for use.

  Further, a terminal exposing through hole 11b is formed in the inclined surface 11A. The terminal exposing through hole 11b extends in the longitudinal direction of the upper housing 10, that is, the direction connecting the upper left and the lower right in FIG. 2, and the opening has a substantially rectangular shape. As shown in FIG. 1, a part of the terminal holder 30 that holds the terminal block 38 to be described later and a part of the terminal block 38 are formed in the terminal exposing through hole 11 b from the housing inner space 1 a to the outside of the upper housing 10. Protrusively through.

  At the position of the opening of the terminal exposure through hole 11b corresponding to the lower side of the inclination of the inclined surface 11A, as will be described later, the terminal exposure through hole 11b projects to the outside of the upper housing 10 as will be described later. A terminal cover 13 that covers and protects part of the terminal holder 30 and part of the terminal block 38 is provided. The terminal cover 13 includes a first side wall portion 13A erected from a long side that is one long side of the substantially rectangular terminal exposure through-hole 11b and located below the inclined surface 11A, and a substantially rectangular shape. A pair of short-side portions of the terminal exposure through-hole 11b, which is formed from a portion extending from one long side of the terminal exposure through-hole 11b having a substantially rectangular shape to a predetermined position toward the other long side. A pair of second side wall portions 13B, 13B to be provided, and an extending end of the first side wall portion 13A and a ceiling wall 13C connected to the extending end of the pair of second side wall portions 13B, 13B A portion of the terminal exposing through hole 11b corresponding to the lower portion of the inclined surface 11A is covered.

  A terminal holder 30 and a circuit board (not shown) are provided in the housing inner space 1a. The terminal holder 30 is attached to the inner peripheral surface of the upper housing 10 by screws (not shown), and as shown in FIG. 4, a substantially rectangular plate-like portion 31 and a terminal erected from the plate-like portion 31. Holding part 32. The terminal holding portion 32 includes a base portion 33 that is higher than the upper surface of the plate-like portion 31, a vertical wall 34 that extends vertically from the upper surface of the base portion 33, and a plate-like portion 31 that extends from the extending end of the vertical wall 34. The vertical wall 34 holds the terminal block 38 having the charging terminal 36 and the signal terminal 37. The charging terminal 36 corresponds to a charging terminal.

  Each of the charging terminal 36 and the signal terminal 37 has a substantially plate shape, and is perpendicular to the upper surface of the plate-like portion 31 and parallel to the upper surface of the plate-like portion 31 as shown in FIG. The ceiling wall 35 extends in the opposite direction and the opposite direction. The charging terminal 36 and the signal terminal 37 extending from the vertical wall 34 in the extending direction of the ceiling wall 35 are in contact with the charging terminal 36 of a rechargeable battery (not shown) and can be electrically connected. The charging terminal 36 and the signal terminal 37 are electrically connected to a circuit board (not shown).

  A terminal block through hole 34 a is formed between the charging terminal 36 and the signal terminal 37 of the terminal block 38 held on the vertical wall 34. The terminal block through hole 34a corresponds to the discharge side opening. The terminal block through hole 34a communicates with the terminal cover through hole 12a through the inside of the terminal cover as shown in FIG. Accordingly, a discharge path is formed for allowing dust, foreign matter, and the like flowing into the terminal holder from the outside of the upper housing 10 through the opening to flow into the terminal cover through hole 12a. The portion of the base portion upper surface 33A that defines the terminal block 38 connected at the same height as the inclined surface 11A corresponds to the inflow side opening.

  A circuit board (not shown) is electrically connected to the charging terminal 36 and the signal terminal 37 of the terminal block 38, and a charging / discharging terminal and a signal terminal on the rechargeable battery side are connected to the charging terminal 36 and the signal terminal 37. It is configured to be able to be charged by being electrically connected.

  When charging a rechargeable battery (not shown) using the charger 1, first, one end of a rail provided on the outer peripheral surface of the rechargeable battery (not shown) is engaged with the upper end of the slide rail 11C of the charger 1. The rechargeable battery is slid along the slide rail 11C toward the lower side of the inclined surface 11A, and the rechargeable battery charge / discharge terminal and signal terminal (not shown) are connected to the charging terminal 36 and signal signal of the charger 1. The terminal 37 is brought into contact with and electrically connected. This starts charging a rechargeable battery (not shown). A charging / discharging terminal (not shown) corresponds to a charging battery charging terminal.

  In an environment where dust is used when not in use, the dust flows into the terminal block 38 from the upper surface 33A of the base portion. The inflowing dust flows downward of the inclined surface 11A, flows out from the terminal block through hole 34a, and is discharged from the terminal cover through hole 12a to the outside of the upper housing 10, as indicated by arrows in FIG. can do.

  For this reason, it is possible to prevent a short circuit between the charging terminal 36 and the signal terminal 37, and it is possible to eliminate accessory parts such as a terminal cover.

  Further, the shape of the terminal holder 30 and the shapes of the upper housing 10 and the lower housing 20 are not limited to those of the present embodiment. Similarly, the shape and number of charging terminals 36 and signal terminals 37 are not limited to those of the present embodiment.

  In the above embodiment, the slide rail is formed obliquely with respect to the charger main body, and the battery pack is moved in the oblique direction along the slide rail, whereby the charger and the battery pack terminal are connected. However, it is also possible to target a charger in which both terminals are connected by extending the slide rail in a substantially vertical direction and moving the battery pack in the vertical direction. It can be played.

The front perspective view which shows the charger by embodiment of this invention. The rear perspective view which shows the charger by embodiment of this invention. The disassembled perspective view which shows the upper housing of the charger by embodiment of this invention, a lower housing, and a holding member. Sectional drawing which shows the upper housing of the charger by embodiment of this invention, a lower housing, and a holding member. The front perspective view which shows the holding member of the charger by embodiment of this invention. Sectional drawing which shows the upper housing of the charger of a prior art example, a lower housing, and a holding member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Charger, 1a ... Space in housing, 10 ... Upper housing, 11 ... Rechargeable battery set part, 11C ... Slide rail, 11b ... Through hole for terminal exposure, 12a .. Terminal cover through hole, 13 ... Terminal cover, 20 ... Lower housing, 30 ... Terminal holder, 34a ... Terminal block through hole, 36 ... Charging terminal, 37 ... Signal terminal, 38 ... Terminal block

Claims (1)

A lower housing with an open top;
Mounted above the said lower housing so as to cover the upper surface of said lower housing, an upper housing which is inclined so that the charging battery is higher insertion side of the upper surface which is set,
A plurality of terminals is provided which extends toward the insertion side, a terminal block having a plurality of through holes are provided which are formed between the terminals,
A terminal holder that holds the terminal block and is attached to the opening of the upper housing so that the insertion side is inclined;
And the cormorant terminal cover covering the terminal holder,
Provided integrally with the upper housing on both sides of the terminal holder and the terminal cover, and provided with slide rails for the rechargeable battery to slide, by the insertion side of the through hole provided in the terminal block and the upper surface of the terminal holder An inflow side opening is formed, a discharge side opening that communicates with the inflow side opening is formed on the opposite side of the through hole provided in the terminal block, and the discharge side opening of the terminal block is formed in the terminal cover A charger having a discharge opening communicating with the portion .

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