CN111758203A - Charger for mobile storage battery - Google Patents

Abstract

The present invention provides a charger for a mobile storage battery, comprising: a cooling fan (28) disposed inside a charger (1) for a mobile battery (45) of an electric vehicle; a first surface (1a) that faces a mounting surface (FL) on which the charger (1) is mounted; and a second surface (1b) that is farther from the installation surface (FL) than the first surface (1a), wherein the first surface (1a) is smaller than the second surface (1b), and wherein the side wall (3) of the charger (1) has a trapezoidal shape in side view, wherein a first side along the first surface (1a) is shorter than a second side along the second surface (1 b).

Description

Charger for mobile storage battery

Technical Field

The present invention relates to a charger for a mobile storage battery.

The present invention claims priority based on application No. 2018-044466 filed on the sun on 12.3.2018, and the contents of which are incorporated herein by reference.

Background

Conventionally, there is a charger for charging a battery for an electric vehicle, for example, as disclosed in patent document 1. Patent document 1 discloses a portable power supply device including a battery for supplying operating power to an electrical device and a charger for detachably attaching the battery and charging the battery.

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-99200

Disclosure of Invention

Summary of the invention

Problems to be solved by the invention

However, in a charger for charging a battery used for a motorcycle or the like, a current value for charging is increased, and therefore, it is desirable to cool the charger.

Therefore, an object of the present invention is to cool a charger of a mobile battery.

Means for solving the problems

As a solution to the above problem, the present invention has the following configuration.

(1) A charger for a mobile storage battery according to an aspect of the present invention includes: a cooling fan (28) disposed inside a charger (1) for a mobile battery (45) of an electric vehicle; a first surface (1a) that faces a mounting surface (FL) on which the charger (1) is mounted; and a second surface (1b) that is farther from the installation surface (FL) than the first surface (1a), wherein the first surface (1a) is smaller than the second surface (1b), and wherein the side wall (3) of the charger (1) has a trapezoidal shape in which a first side along the first surface (1a) is shorter than a second side along the second surface (1b) in a side view.

(2) In the charger for a mobile storage battery according to the above (1), a lower surface (1a) of the charger (1) as the first surface (1a) may be smaller than an upper surface (1b) of the charger (1) as the second surface (1b), and the side wall (3) may have a trapezoidal shape that is shorter along a lower side of the lower surface (1a) than along an upper side of the upper surface (1b) in a side view.

(3) In the charger for a portable storage battery according to the above (1) or (2), the charger for a portable storage battery may further include a cover member (4), the cover member (4) may be formed with an opening (39) that is open so that a storage battery (45) can be inserted and removed, and may cover the side wall (3) from the outside, and a gap (38) that is open so that cooling air can be introduced or discharged may be provided between the side wall (3) and the cover member (4).

(4) In the charger for a portable storage battery according to any one of the above items (1) to (3), the charger for a portable storage battery may further include a battery chamber (6) in which a storage battery (45) is placed and a board chamber (7) in which boards (71, 72) for controlling charging of the storage battery (45) are stored, and the cooling fan (28), the board chamber (7), and the battery chamber (6) may be arranged in this order from the first surface (1a) toward the second surface (1 b).

(5) In the charger for a mobile storage battery according to any one of (1) to (4), an inlet (38) that is open to allow cooling air to be introduced may be provided at a position that is farther from the installation surface (FL) than the first surface (1a), and an outlet (25) that is open to allow the cooling air to be discharged may be provided at a position that is closer to the installation surface (FL) than the inlet (38).

(6) In the charger for a mobile storage battery according to any one of the above items (1) to (4), an outlet (38) that is open to allow cooling air to be discharged may be provided at a position that is farther from the installation surface (FL) than the first surface (1a), and an inlet (25) that is open to allow cooling air to be introduced may be provided at a position that is closer to the installation surface FL than the outlet (38).

(7) In the charger for a portable storage battery according to any one of the above (1) to (6), a corner of the second surface (1b) may be arc-shaped.

Effects of the invention

According to the charger for a portable storage battery described in (1) above, since the charger includes the cooling fan disposed inside the charger, the cooling fan can send the cooling air to the inside of the charger, and thus the charger can be cooled. The charger includes a first surface facing an installation surface on which the charger is installed and a second surface spaced apart from the installation surface from the first surface, the first surface being smaller than the second surface, and the side wall of the charger has a trapezoidal shape shorter along a first side of the first surface than along a second side of the second surface in a side view. For example, when the side walls of the chargers are rectangular in side view, when a plurality of chargers are arranged on the installation surface and are adjacent to each other, the side walls of the adjacent two chargers contact each other, so that heat is likely to be accumulated between the adjacent two chargers, and the cooling performance is likely to be lowered. In contrast, according to the invention described in the first aspect, since the side walls of the chargers have a trapezoidal shape in side view, even when a plurality of chargers are arranged and adjacent on the installation surface, the side walls of the two adjacent chargers do not contact each other (a gap is generated between the side walls of the two adjacent chargers), so that heat is less likely to be accumulated between the two adjacent chargers, and the cooling performance is less likely to be degraded. In addition, even when a plurality of chargers are arranged adjacent to each other on the installation surface, heat from the adjacent chargers can be suppressed, and the chargers can be cooled by the gap formed between the side walls of the two adjacent chargers. Further, since the side wall of the charger has a trapezoidal shape shorter along the first side of the first surface than along the second side of the second surface, the installation area of the charger can be reduced as compared with the case where the side wall has a trapezoidal shape with the first side longer than the second side.

According to the charger for a portable storage battery described in the above (2) of the present invention, the lower surface of the charger as the first surface is smaller than the upper surface of the charger as the second surface, and the side wall has a trapezoidal shape in which the lower side along the lower surface is shorter than the upper side along the upper surface in a side view, thereby exhibiting the following effects. Even when a plurality of vertically standing chargers are arranged adjacent to each other on a mounting surface parallel to a horizontal plane, the side walls of the adjacent two chargers do not contact each other, so that heat is less likely to be accumulated between the adjacent two chargers, and the cooling performance is less likely to be lowered.

According to the charger for a mobile battery described in (3) above, the charger further includes a cover member having an opening through which the battery can be inserted and removed and covering the side wall from the outside, and a gap portion having an opening through which cooling air can be introduced or discharged is provided between the side wall and the cover member, thereby exhibiting the following effects. The introduction or discharge of the cooling air can be controlled by the gap between the side wall of the charger and the cover member without providing an opening for the cooling air in the side wall of the charger. That is, it is not necessary to perform special processing on the side wall of the charger, and thus it is preferable.

According to the charger for a mobile storage battery described in the above (4), the charger further includes a battery chamber for placing the storage battery and a board chamber for storing a board for controlling charging of the storage battery, and the cooling fan, the board chamber, and the battery chamber are arranged in this order from the first surface toward the second surface, thereby exhibiting the following effects. Since the cooling fan, the board compartment, and the battery compartment are disposed so as to overlap from the first surface toward the second surface, the installation area of the charger can be reduced as compared with a case where the cooling fan, the board compartment, and the battery compartment are disposed along the first surface.

According to the charger for a portable battery described in (5) above, the following effects are exhibited, in which the inlet port, which is open to allow cooling air to be introduced, is provided at a position away from the installation surface with respect to the first surface, and the outlet port, which is open to allow cooling air to be discharged, is provided at a position closer to the installation surface with respect to the inlet port. Since foreign matter such as dust present on the installation surface is less likely to be sucked into the charger, the performance of the cooling fan can be prevented from being degraded. Further, in the case where the cooling fan, the base plate compartment, and the battery compartment are arranged in this order from the first surface toward the second surface, the cooling air from the inlet port flows in the order of the battery compartment and the base plate compartment, and is discharged from the outlet port.

According to the charger for a portable battery described in (6) above, the following effects are exhibited, in which the outlet opening that is open to allow the cooling air to be discharged is provided at a position that is farther from the installation surface than the first surface, and the inlet opening that is open to allow the cooling air to be introduced is provided at a position that is closer to the installation surface than the outlet opening. When the cooling fan, the substrate chamber, and the battery chamber are arranged in this order from the first surface toward the second surface, the cooling air from the inlet port flows in the order of the substrate chamber and the battery chamber, and is discharged from the outlet port.

According to the charger for a portable storage battery described in the above (7), the corner of the second surface has an arc shape, and the following effects are exhibited. Even when a plurality of chargers are arranged on an installation surface and are adjacent to each other, since the corners of the second surfaces of two adjacent chargers do not contact each other (a gap is generated between the corners of two adjacent chargers), the flow of wind is less likely to be obstructed at the corners, and the cooling performance is improved.

Drawings

Fig. 1 is a perspective view of a charger according to an embodiment.

Fig. 2 is a plan view of the charger of the embodiment.

Fig. 3 is a bottom view of the charger of the embodiment.

Fig. 4 is a front view of the charger of the embodiment.

Fig. 5 is a view including the V-V section of fig. 2.

Fig. 6 is a perspective view of the inside of the charger according to the embodiment.

Fig. 7 is a view of fig. 6 with the cover and the coupling post removed.

Fig. 8 is a perspective view of a peripheral portion of the discharge pipe of the embodiment.

Fig. 9 is a plan view showing the charger of the embodiment together with a battery.

Fig. 10 is a rear view showing the charger of the embodiment together with a battery.

Fig. 11 is an explanatory diagram of the arrangement position of the terminal portions according to the embodiment.

Fig. 12 is an explanatory diagram of an operation of the cooling fan of the embodiment.

Fig. 13 is an explanatory diagram of the arrangement position of the cooling fan in the embodiment.

Fig. 14 is a plan view showing a state in which a plurality of chargers according to the embodiment are arranged adjacent to each other on an installation surface.

Fig. 15 is a front view showing a state in which a plurality of chargers according to the embodiment are arranged adjacent to each other on an installation surface.

Fig. 16 is an explanatory diagram of an operation of a cooling fan according to a modification of the embodiment.

Fig. 17 is an explanatory diagram of the arrangement position of the cooling fan in the modification of the embodiment.

Fig. 18 is a bottom view of an air guide structure of a cooling fan according to a modification of the embodiment.

FIG. 19 is a view including the XIX-XIX section of FIG. 18.

Fig. 20 is a perspective view of the internal structure of a charger according to a modification of the embodiment.

Fig. 21 is a perspective view showing a state in which the stage of the modification of the embodiment is positioned at the top.

Fig. 22 is a perspective view showing a state in which the stage of the modification of the embodiment is moved to the lowermost position.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals. In the embodiment, a description will be given of a charger for a portable battery (portable battery) used for an electric motorcycle (saddle-ridden electric vehicle) as an example of the charger for the portable battery. In the embodiment, a mounting surface of a charger (hereinafter, also simply referred to as "charger") on which a mobile storage battery (hereinafter, also simply referred to as "storage battery") is mounted is a flat floor surface in a room.

< charger 1>

As shown in fig. 1, the charger 1 includes: a base 2 constituting the bottom of the charger 1; an exterior body 3 constituting a side wall of the charger 1; a cover member 4 having an opening 39 (hereinafter also referred to as "battery opening 39") into which a battery 45 (see fig. 10) can be inserted and from which the battery can be removed; a frame 5 (see fig. 6) constituting a skeleton of the charger 1; a battery chamber 6 (see fig. 5) on which a battery 45 is mounted; a substrate chamber 7 (see fig. 5) for storing a substrate for controlling charging of the battery 45; a stage 8 on which the battery 45 can be placed; a terminal portion 9 (see fig. 5) that can be fitted into the battery 45; a buffer mechanism 10 (see fig. 6) for suppressing a fitting speed of the battery 45 to the terminal portion 9; a guide mechanism 11 (see fig. 6) that guides the stage 8; and a cooling fan 28 (see fig. 3) disposed inside charger 1.

In the following description, a depth direction (a direction orthogonal to the paper surface shown in fig. 4) when charger 1 is installed on floor surface FL is referred to as a "front-rear direction", a normal direction (vertical direction) of floor surface FL is referred to as a "up-down direction", and directions orthogonal to the front-rear direction and the up-down direction are referred to as "left-right directions". In the figure, the front direction is indicated by an arrow FR, the upper direction is indicated by an arrow UP, and the left direction is indicated by an arrow LH.

The charger 1 includes a first surface 1a facing the installation surface FL and a second surface 1b spaced apart from the installation surface FL than the first surface 1 a. In the embodiment, lower surface 1a of charger 1 as first surface 1a is smaller than upper surface 1b of charger 1 as second surface 1 b. In the bottom view of fig. 3, the outer shape of lower surface 1a of charger 1 is smaller than the outer shape of upper surface 1b of charger 1.

< base station 2>

In the bottom view of fig. 3, the base 2 has a rectangular shape having a length in the left-right direction. Four corners of the base 2 are formed in an arc shape protruding outward. As shown in fig. 5, the base 2 includes a base main body 20 that supports the components of the charger 1 from below, leg portions 21 that extend from four corners of the base main body 20 toward the floor surface, and base flanges 22 that extend upward from four sides of the base main body 20.

In fig. 3, reference numeral 27 denotes a power plug, and reference numeral 28 denotes a cooling fan.

As shown in fig. 5, the base 2 includes a recess 23 that forms a gap with the floor surface FL. In the cross-sectional view of fig. 5, the recess 23 is formed by the lower surface of the base main body 20 and the outer surfaces of the pair of leg portions 21. The recess 23 is provided with a drain port 24 (see fig. 3) communicating with a drain pipe 65 (see fig. 8).

< outer package 3>

In the front view of fig. 4, exterior body 3 (side wall 3 of charger 1) has a trapezoidal shape in which the lower side along lower surface 1a of charger 1 is shorter than the upper side along upper surface 1b of charger 1. The outer package 3 has a rectangular tubular shape extending in the vertical direction such that the opening area increases toward the upper side. The lower end of the outer package 3 is coupled to the base 2.

As shown in fig. 3, the lateral width of outer package 3 is larger than the front-rear width of outer package 3. The outer package 3 includes a front wall 31, a rear wall 32, a left wall 33, and a right wall 34. The front wall 31 and the rear wall 32 are opposed to each other with a space therebetween in the front-rear direction. The left wall 33 and the right wall 34 are opposed to each other with a space therebetween in the left-right direction. The front wall 31, rear wall 32, left wall 33, and right wall 34 are interconnected with adjoining walls. The front wall 31, the rear wall 32, the left wall 33, and the right wall 34 are integrally formed of the same member. In a plan view of fig. 3, the connection portions between the front and rear walls 31, 32 and the left and right walls 33, 34 are formed in an arc shape protruding outward.

As shown in fig. 4, a trapezoidal recess 35 (hereinafter, also referred to as "trapezoidal recess 35") recessed upward is provided in the lower portion of the outer package 3. The trapezoidal recess 35 is provided in the center of the lower portion of each of the front wall 31, the rear wall 32, the left wall 33, and the right wall 34. A part of the base 2 is exposed to the outside through the trapezoidal recess 35.

< cover Member 4>

In a plan view of fig. 2, the cover member 4 has a rectangular frame shape having a length in the left-right direction. In a plan view of fig. 2, the outer shape of the cover member 4 is larger than the outer shape of the base 2 (see fig. 3). Four corners of the cover member 4 (corners of the upper surface 1b of the charger 1) are formed in an arc shape protruding outward.

As shown in fig. 4, the cover member 4 is attached to the upper end of the outer package 3. The cover member 4 covers the outer package 3 from above. An inlet 38 (gap) is provided between the upper end of the outer package 3 and the cover member 4 and is opened to allow cooling air to be introduced.

As shown in fig. 5, the cover member 4 includes a cover main body 40 forming the battery opening 39, and a cover-side flange 41 projecting downward from the cover main body 40. In the plan view of fig. 9, the battery opening 39 has substantially the same outline as the outer shape of the battery 45.

As shown in fig. 10, the battery 45 has a rectangular parallelepiped shape. The battery 45 is, for example, a lithium ion battery 45.

In a plan view of fig. 9, the battery 45 has a front side 45a extending in the left-right direction, a rear side 45b having a curved shape projecting rearward, and a pair of left and right sides 45c and a right side 45d extending in the front-rear direction. In fig. 9 and 10, reference numeral 46 denotes a grip (handle) for gripping the battery 45.

In a plan view of fig. 9, the battery opening 39 is defined by a front edge 39a extending in the left-right direction, a rear edge 39b having a curved shape projecting rearward, and a pair of left and right edges 39c and 39d extending in the front-rear direction.

Thus, even if the battery 45 is inserted into the battery opening 39 with the battery 45 turned upside down, the convex portion of the rear side 45b of the battery 45 abuts against the front edge 39a of the battery opening 39, and therefore the battery 45 cannot be inserted into the battery opening 39.

< frame 5>

As shown in fig. 6, the frame 5 includes: a frame 50 disposed above the charger 1; a plate-like first plate 51 disposed between the frame 50 and the upper and lower sides of the base 2; a plate-shaped second plate 52 disposed between the first plate 51 and the upper and lower sides of the base 2; and a plurality of connecting columns 53 for connecting the frame 50, the first plate 51, and the second plate 52.

The frame 50 and the first plate 51 define a battery chamber 6.

The first plate 51 and the second plate 52 define a substrate chamber 7. The second plate 52 is coupled to the base 2. In fig. 6, reference numeral 54 denotes a second plate connecting leg which extends downward in an L shape from the outer peripheral end of the second plate 52 and connects the second plate 52 to the base 2.

The connecting column 53 extends in the vertical direction. The upper end of the connecting column 53 extends upward from the frame 50. The lower ends of the connecting columns 53 are connected to the base 2 (base main body 20). In the embodiment, the connecting posts 53 are disposed one at each of the front, left, and right portions of the charger 1, and three in total. The upper half of the connecting column 53 constitutes a guide mechanism 11 for guiding the stage 8.

The frame 50 is connected to the upper portion of the connecting column 53 from the outside.

The first plate 51 is connected to the upper and lower intermediate portions of the connecting column 53. In fig. 6, reference numeral 55 denotes a first plate connecting piece which extends outward from the outer peripheral end of the first plate 51 and forms an insertion portion (connecting portion) of the connecting post 53.

< Battery cell 6>

As shown in fig. 5, the battery compartment 6 includes a battery compartment bottom wall 60 on which the battery 45 is placed, and a battery compartment side wall 61 connected to the battery compartment bottom wall 60.

The battery chamber bottom wall 60 has a rectangular plate shape. The battery compartment bottom wall 60 is fixed to the upper surface of the first plate 51. The stage 8 is housed in a space above the battery compartment bottom wall 60 together with the battery 45 (see fig. 10). The outer shape of the battery compartment bottom wall 60 is larger than the outer shapes of the battery 45 and the stage 8.

The battery compartment side wall 61 rises upward from the outer periphery of the battery compartment bottom wall 60.

A flange portion 62 (hereinafter also referred to as "battery compartment flange 62") extending upward from the outer periphery of the battery compartment bottom wall 60 is provided on the outer side of the battery compartment side wall 61. As shown in fig. 6, the battery case flange 62 is provided at a uniform height over the entire circumference of the battery case bottom wall 60.

As shown in fig. 8, a drain pipe 65 for connecting the battery compartment bottom wall 60 to the base 2 is provided at the front portion of the battery compartment 6. The discharge pipe 65 is a pipe extending in the vertical direction. In fig. 8, reference numeral 66 denotes a drain connection portion which extends forward from the front end of the battery compartment bottom wall 60 and is connected to the upper end of the drain pipe 65.

< substrate Chamber 7>

As shown in fig. 5, the substrate chamber 7 is disposed below the battery chamber 6. The substrate chamber 7 is disposed inside the outer peripheral edge of the battery chamber bottom wall 60 in a plan view. In other words, the outer shape of the substrate chamber 7 is smaller than the outer shape of the battery chamber bottom wall 60 in plan view.

The substrate chamber 7 includes a plurality of substrates 71 and 72 (hereinafter also referred to as " control substrates 71 and 72") for controlling charging of the battery 45 (see fig. 10), and a substrate chamber bottom wall 70 for housing the plurality of control substrates 71 and 72.

The plurality of control boards 71, 72 are a plurality of first control boards 71 mounted on the central portion of the board chamber bottom wall 70, and a plurality of second control boards 72 rising upward from the outer periphery of the board chamber bottom wall 70.

The plurality of first control boards 71 are surrounded by the plurality of second control boards 72.

The plurality of second control boards 72 are disposed with the control circuit for controlling the charging of the battery 45 facing inward (toward the center of the board chamber 7). The second control board 72 functions as a side wall of the battery chamber 6. The outer surface of the second control board 72 faces the inner surface of the exterior body 3. A heat sink or a heat sink may be provided on the outer surface of the second control substrate 72.

The base plate chamber bottom wall 70 has a rectangular plate shape smaller than the battery chamber bottom wall 60 in a plan view. The substrate chamber bottom wall 70 is disposed above the second plate 52. The substrate chamber bottom wall 70 is fixed to the upper surface of the second plate 52 via a columnar spacer 73 extending in the vertical direction. A heat sink or a heat sink is provided on the lower surface of the substrate chamber bottom wall 70.

< stage 8>

As shown in fig. 5, the stage 8 is disposed inside the battery opening 39. The stage 8 is movable in the vertical direction. In a state where battery 45 is not mounted on stage 8 (position of stage 8 shown by two-dot chain line in fig. 5), terminal portion 9 is arranged below stage 8. When battery 45 is placed on stage 8, stage 8 moves downward to fit battery 45 into terminal 9. In fig. 5, the state in which the stage 8 has moved to the lowermost position is shown by solid lines.

In the plan view of fig. 2, stage 8 has a rectangular shape. In a plan view, stage 8 has an outer shape substantially identical to the outer shape of battery 45 (see fig. 9). In a plan view of fig. 2, stage 8 has a front side 8a extending in the left-right direction, a rear side 8b having a curved shape projecting rearward, and a pair of left and right sides 8c and a right side 8d extending in the front-rear direction.

On stage 8, terminal opening 80 opened at a portion corresponding to terminal portion 9 and communication opening 81 communicating with the inside of charger 1 are provided.

Terminal openings 80 are disposed at the rear of stage 8. In the plan view of fig. 2, the terminal opening 80 extends in the left-right direction.

The communication opening 81 is disposed in the front portion of the stage 8 (in front of the terminal opening 80). In a plan view of fig. 2, the communication opening 81 has a rectangular shape having a length in the left-right direction.

A cover 85 that covers the communication opening 81 is provided on the upper surface of the stage 8. Cover 85 is detachably attached to stage 8. In a plan view of fig. 2, the cover 85 includes a rectangular cover main body 86 larger than the communication opening 81 (see fig. 7), and a pair of left and right cover projecting pieces 87 projecting outward from left and right outer ends of the cover main body 86. In fig. 2, reference numeral 88 denotes an insertion hole through which a fastening member such as a bolt for fixing the cover projecting piece 87 to the stage 8 is inserted. Fig. 7 shows a state where cover 85 is removed from stage 8.

At four corners of stage 8, drain recesses 82 are provided so as to be recessed downward. The drainage recess 82 is circular in a plan view of fig. 2. The drain recess 82 is recessed obliquely so as to be located more downward toward the center side. The corner portion of the front portion of cover 85 forms drain recess 82 together with stage 8. A drain hole 83 penetrating through stage 8 in the thickness direction (vertical direction) is provided at the center of drain recess 82.

As shown in fig. 7, a stage support 90 that supports stage 8 from below is attached to the lower surface of stage 8. Stage support body 90 includes: a pair of front and rear right and left outer extension portions 91 extending to the right and left outer sides from the right and left side portions of the carrier 8; a first lower extending portion 92 extending downward from the front portion of the stage 8; a pair of left and right second downward extending portions 93 extending downward from the left and right side portions of the stage 8; and a front lower extension 94 extending forwardly and outwardly from the second lower extension 93.

As shown in fig. 6, stage biasing members 95 that constantly bias the stage 8 upward are provided on the left and right sides of the stage 8. The stage biasing members 95 are provided on the left and right sides of the charger 1 in a pair, one on each side. In the embodiment, the stage urging member 95 is a coil spring extending in the vertical direction.

The upper end of the stage biasing member 95 is attached to the left and right side portions of the frame 50. The lower end of the stage urging member 95 is mounted on the lower end of the front lower extension 94 of the stage support body 90.

The stage biasing member 95 moves the stage 8 upward, which moves downward when the battery 45 (see fig. 10) is placed on the stage 8. Specifically, when the battery 45 is not placed on the stage 8, the stage biasing member 95 resets the stage 8 housed in the battery compartment 6 to a position before the battery 45 is placed on the stage 8. That is, when the battery 45 is removed from the terminal portion 9 and the battery 45 is taken out to the outside of the battery opening 39, the stage biasing member 95 returns the stage 8 housed in the battery chamber 6 to the original position.

In fig. 5, the stage 8 that has moved to the lowermost position is indicated by a solid line, and the stage 8 before moving downward (the original position) is indicated by a two-dot chain line.

< terminal section 9>

As shown in fig. 5, in a state where battery 45 is not mounted on stage 8, terminal portion 9 is arranged at a position (lower position) opposite to a position (upper position) on which battery 45 is mounted with respect to stage 8. The terminal portions 9 are fixed to a terminal support plate 96 extending in the left-right direction. The terminal support plate 96 is fixed at both left and right ends thereof to the upper surface of the battery compartment bottom wall 60 via a pillar member (not shown) extending in the vertical direction.

The portion of the terminal portion 9 above the upper surface of the terminal support plate 96 is fitted to the bottom of the battery 45, and is electrically connected to a battery-side terminal (not shown) provided at the bottom of the battery 45.

The terminal portion 9 is electrically connected to the control boards 71 and 72 via various wires (not shown) at a portion below the lower surface of the terminal support plate 96.

The terminal portion 9 is disposed at a position higher than the protruding end of the battery case flange 62. In other words, the lower end of the terminal portion 9 is disposed above the upper end of the battery case flange 62.

As shown in fig. 11, terminal portion 9 is disposed at a position lower than a portion 47 (hereinafter, also referred to as "lower maximum projecting end 47") that projects most toward terminal portion 9 when battery 45 is inserted obliquely into battery opening 39.

Here, the lower maximum projecting end 47 of the battery 45 is a lower end at a position where the center axis CL of the battery opening 39 bisects a corner of the rectangular parallelepiped battery 45 when the rectangular parallelepiped battery 45 is obliquely inserted into the battery opening 39. That is, the lower maximum projecting end 47 of the battery 45 is a lower end when the center axis CL of the battery opening 39 becomes a bisector of a corner of the battery 45.

< buffer mechanism 10>

When the battery 45 (see fig. 10) is placed on the stage 8, the buffer mechanism 10 (see fig. 6) suppresses the fitting speed of the battery 45 to the terminal portion 9 (see fig. 5). Here, the fitting speed is a speed at which the terminal portion 9 is fitted to the bottom of the battery 45. The fitting speed is a relative speed between the battery 45 and the terminal 9 at the time of fitting. In the embodiment, the terminal portion 9 is fixed to a fixed position with respect to the battery compartment bottom wall 60, and therefore the fitting speed is a downward moving speed (falling speed) of the battery 45. According to the embodiment, the fitting speed of the battery 45 to the terminal portion 9 is slower than that of the configuration without the buffer mechanism 10, and therefore, it is possible to avoid the occurrence of a shock to the terminal portion 9.

In the plan view of fig. 2, a plurality of buffer mechanisms 10 are disposed on opposite sides of stage 8 in point symmetry with center position P1 of stage 8 as the center of symmetry. In the embodiment, two buffer mechanisms 10 are disposed on each of the left side 8c and the right side 8d of the stage 8 in a quadratic symmetry (line symmetry with the left and right axes as axes of symmetry). In the plan view of fig. 2, the two buffer mechanisms 10 are disposed on both sides (the left side 8c and the right side 8d) of the stage 8 so as to sandwich the guide mechanism 11 from the front to the rear to the outside.

As shown in fig. 6, the damper mechanism 10 includes: a piston rod 100 extending in the up-down direction; a cylindrical cylinder 101 slidably accommodating the piston rod 100; and an unillustrated biasing member (hereinafter also referred to as a "return spring") such as a spring that biases the piston rod 100 upward. For example, a damper for a product is used as the damper mechanism 10.

As shown in fig. 7, the upper end of piston rod 100 is attached to left and right outer extensions 91 in stage support body 90. The lower end of the cylinder 101 is fixed to the base 2. The return spring (not shown) suppresses the impact force when the terminal portion 9 (see fig. 5) is fitted to the bottom of the battery 45.

< guide mechanism 11>

When battery 45 (see fig. 10) is mounted on stage 8, guide mechanism 11 (see fig. 6) guides stage 8.

In the plan view of fig. 2, the plurality of guide mechanisms 11 are arranged so as to surround the center of gravity position P2 (see fig. 9) of the battery 45. Here, the center of gravity of battery 45 is substantially the same as the center of battery 45. In the embodiment, three guide mechanisms 11 are arranged so as to form a triangular region (a region surrounded by a one-dot chain line having an inverted triangle shape in a plan view of fig. 2) surrounding the center of gravity position P2 of the battery 45.

Three guide mechanisms 11 are disposed one on each of three sides of the stage 8. In the embodiment, three guide mechanisms 11 are disposed one on each of the front side 8a, the left side 8c, and the right side 8d of the stage 8.

Hereinafter, the guide mechanism 11 disposed on the front side 8a of the stage 8 is also referred to as "front guide mechanism 11", the guide mechanism 11 disposed on the left side 8c of the stage 8 is also referred to as "left guide mechanism 11", and the guide mechanism 11 disposed on the right side 8d of the stage 8 is also referred to as "right guide mechanism 11".

The front guide mechanism 11 is disposed at the center position in the left-right direction of the stage 8.

The left guide mechanism 11 and the right guide mechanism 11 are disposed at positions that are offset rearward from the front-rear direction center position of the stage 8.

As shown in fig. 6, the guide mechanism 11 includes a slider 110 (see fig. 7) and a rail 111 that slidably supports the slider 110.

As shown in fig. 7, the slider 110 is fixed to the first lower extension portion 92 and the second lower extension portion 93 of the stage support body 90.

As shown in fig. 6, the rail 111 is fixed to an inner portion of the upper half of the coupling post 53.

< Cooling Fan 28>

As shown in fig. 12, cooling fan 28 is mounted on the lower left portion of charger 1. The cooling fan 28 is disposed below the substrate chamber 7. In the embodiment, cooling fan 28, base plate compartment 7, and battery compartment 6 are arranged in this order from lower surface 1a toward upper surface 1b of charger 1. The cooling fan 28 is attached to the left portion of the base main body 20.

In the bottom view of fig. 3, the lower portion of the cooling fan 28 is exposed below the base main body 20. As shown in fig. 12, the concave portion 23 of the base 2 forms an outlet 25 (gap) that is open so as to allow cooling air to be discharged between the concave portion and the floor surface FL. The discharge port 25 is disposed closer to the floor surface FL than the introduction port 38.

For example, the cooling fan 28 is an axial flow fan. The cooling fan 28 introduces cooling air from an inlet port 38 disposed at a position distant from the floor surface FL, and discharges the cooling air from an outlet port 25 disposed at a position closer to the floor surface FL than the inlet port 38. That is, cooling fan 28 takes in cooling air from the upper portion of charger 1 and discharges air passing through the interior of charger 1 from the lower portion of charger 1. In fig. 12, reference symbol V1 denotes the direction in which the cooling wind (wind) flows.

< positional relationship between cooling fan 28 and second control board 72 >

Fig. 13 is a diagram comprising a section XIII-XIII of fig. 5. In fig. 13, the substrate chamber bottom wall 70 and the like are not shown.

In the plan view of fig. 13, the cooling fan 28 is disposed at the center of the base main body 20. In the plan view of fig. 13, three second control boards 72 are disposed with the control circuit for controlling the charging of the battery 45 facing inward (toward the center of the board chamber 7). A plurality of control chips including a control circuit are provided on an inner surface of the second control substrate 72.

The outer surface of the second control board 72 faces the inner surface of the outer package 3 with a space. The gap 15 between the outer surface of the second control board 72 and the inner surface of the outer package 3 functions as a passage for cooling air. That is, the cooling surface of the second control board 72 is disposed so as to face the inner surface of the outer package 3.

In the plan view of fig. 13, the three second control boards 72 are arranged in a U shape with the left side opened. The three second control substrates 72 face the inner surfaces of the front wall 31, the rear wall 32, and the right wall 34 of the outer package 3 at intervals. The cooling fan 28 is disposed in a region surrounded by the three second control boards 72.

Hereinafter, the second control board 72 facing the front wall 31 of the outer package 3 is also referred to as a "front second control board 72", the second control board 72 facing the rear wall 32 of the outer package 3 is also referred to as a "rear second control board 72", and the second control board 72 facing the right wall 34 of the outer package 3 is also referred to as a "right second control board 72".

In the plan view of fig. 13, the cooling fan 28 is disposed at a central position between the front second control board 72 and the rear second control board 72. The separation interval of the cooling fan 28 from the right second control substrate 72 is larger than the separation interval of the cooling fan 28 from the front second control substrate 72 (or the rear second control substrate 72).

< LED substrate 130>

As shown in fig. 9, the cover main body 40 may be provided with an LED substrate 130. The LED board 130 is disposed between the cover main body 40 and the guide mechanism 11 in the vertical direction. The LED board 130 has a rectangular plate shape having a length in the left-right direction. A plurality of LED elements 131 are arranged in a line at intervals in the left-right direction on the LED substrate 130. The left and right end portions of the LED board 130 are attached to the cover main body 40 at positions avoiding the guide mechanism 11. For example, the left and right end portions of the LED board 130 are fixed to the cover main body 40 by fixing members 132 such as tapping screws. The guide mechanism 11 is disposed at a position overlapping with the left and right center portions of the LED board 130 in a plan view. The guide mechanism 11 is located rearward of the front end of the LED board 130 in a plan view.

The portion of the cover main body 40 where the LED substrate 130 is provided (the front side portion extending in the left-right direction) needs to have a width (front-rear length) at least as large as that of the LED substrate 130. In the embodiment, the guide mechanism 11 is arranged with a width as large as that of the LED board 130. Specifically, the guide mechanism 11 is disposed in a portion of the cover main body 40 where the LED board 130 is provided, and the guide mechanism 11 is not disposed in a portion where the LED board 130 is not provided (a rear side portion extending in the left-right direction). This makes it possible to reduce the width of the portion where the LED board 130 is not provided as much as possible, and to reduce the installation area of the charger 1.

< action >

The operation of charger 1 according to the embodiment will be described below.

In the embodiment, in a state where battery 45 is not mounted on stage 8 (hereinafter also referred to as "initial state"), stage 8 is disposed inside battery opening 39 (see fig. 5). In the initial state, the terminal portion 9 is arranged below the stage 8. In fig. 5, the stage 8 at the initial position is indicated by a two-dot chain line.

In the initial state, when battery 45 is placed on stage 8, stage 8 moves downward together with battery 45 and approaches battery compartment bottom wall 60. In fig. 5, the stage 8 located close to the bottom wall 60 of the battery compartment is shown by a solid line.

In the embodiment, since the pair of left and right stage biasing members 95 (only the left stage biasing member 95 is illustrated in fig. 6) always bias the stage 8 upward, the stage 8 moves downward together with the battery 45 against the biasing force of the stage biasing member 95.

In the embodiment, since three guide mechanisms 11 (see fig. 6) are disposed on each of three sides of stage 8, stage 8 can be smoothly moved downward together with battery 45. As stage 8 moves downward, terminal portion 9 gradually protrudes upward from terminal opening 80.

In a state where stage 8 is lowered together with battery 45 and approaches battery chamber bottom wall 60 (hereinafter also referred to as "stage lowered state"), terminal portion 9 is fitted into the bottom of battery 45 through terminal opening 80.

In the embodiment, since two buffer mechanisms 10 (see fig. 6) are disposed on both sides of stage 8 so as to sandwich guide mechanism 11 from the front and rear to the outside, when battery 45 is fitted to terminal portion 9, the load acting on terminal portion 9 can be suppressed with good balance.

When battery 45 is detached from terminal portion 9 and battery 45 is taken out to the outside of battery opening 39 in the stage lowered state, stage 8 returns to the original position (the position in the initial state).

In the embodiment, since the pair of right and left stage biasing members 95 (see fig. 6) always bias the stage 8 upward, the stage 8 on which the battery 45 is not mounted can be smoothly moved to the original position.

< flow of Cooling air >

The operation of the cooling fan 28 of the embodiment will be described below.

In the embodiment, cooling fan 28 (see fig. 12) takes in cooling air from the upper portion of charger 1 and discharges air passing through the interior of charger 1 from the lower portion of charger 1.

As shown in fig. 12, when cooling fan 28 is driven, outside air (air) is taken into charger 1 from inlet 38 located at the upper portion of charger 1 as cooling air.

In the embodiment, since the corners of the upper surface 1b of the charger 1 are arc-shaped, even when a plurality of chargers 1 are arranged on the installation surface FL and are adjacent to each other, the corners of the upper surfaces 1b of the adjacent two chargers 1 do not contact each other (see fig. 14). That is, as shown in fig. 14, a gap 16 is generated between the corners of two adjacent chargers 1. Therefore, the flow of air is less likely to be obstructed at the corner portion of upper surface 1b of charger 1, and cooling air can be smoothly introduced into charger 1 through inlet 38.

As shown in fig. 12, when the cooling air enters the interior of the charger 1 through the inlet 38, the cooling air flows downward in the interior of the charger 1 through the gap between the battery compartment side wall 61 and the inner surface of the exterior body 3 and the gap 15 (see fig. 13) between the outer surface of the second control board 72 and the inner surface of the exterior body 3.

In the embodiment, since cooling fan 28, base plate chamber 7, and battery chamber 6 are arranged in this order from lower surface 1a toward upper surface 1b of charger 1, the cooling air from inlet 38 flows in the order of battery chamber 6 and base plate chamber 7. Therefore, the wind heated by the substrate chamber 7 has a low possibility of flowing into the battery chamber 6.

When the cooling air flows downward in the interior of charger 1, the air heated by passing through substrate chamber 7 is discharged from discharge port 25 located in the lower portion of charger 1.

In the embodiment, since the discharge port 25 is formed between the concave portion 23 of the base 2 and the floor surface FL, the wind heated by the inside of the charger 1 can be smoothly discharged to the outside of the charger 1.

As described above, charger 1 of the above embodiment includes cooling fan 28 disposed inside charger 1 of mobile battery 45 for an electric vehicle, first surface 1a facing installation surface FL on which charger 1 is installed, and second surface 1b located farther from installation surface FL than first surface 1a, and side wall 3 of charger 1 has a trapezoidal shape in which first side along first surface 1a is shorter than second side along second surface 1b in a side view, while first surface 1a is smaller than second surface 1 b.

According to this configuration, by providing cooling fan 28 disposed inside charger 1, cooling air can be sent to the inside of charger 1 by cooling fan 28, and thus charger 1 can be cooled. The charger 1 includes a first surface 1a facing the installation surface FL on which the charger 1 is installed and a second surface 1b spaced apart from the installation surface FL from the first surface 1a, and the first surface 1a is smaller than the second surface 1b, and the side wall 3 of the charger 1 has a trapezoidal shape in which a first side along the first surface 1a is shorter than a second side along the second surface 1b in a side view, and the following effects are exhibited. For example, when the side walls of the chargers are rectangular in side view, when a plurality of chargers are arranged on the installation surface and are adjacent to each other, the side walls of the adjacent two chargers contact each other, so that heat is likely to be accumulated between the adjacent two chargers, and the cooling performance is likely to be lowered. In contrast, according to this configuration, since the side walls 3 of the chargers 1 have a trapezoidal shape in side view, even when a plurality of chargers 1 are arranged and adjacent to each other on the installation surface FL, the side walls 3 of the adjacent two chargers 1 do not contact each other (as shown in fig. 15, a gap 17 is generated between the side walls 3 of the adjacent two chargers 1), so that heat is less likely to be accumulated between the adjacent two chargers 1, and the cooling performance is less likely to be reduced. Even when a plurality of chargers 1 are arranged adjacent to each other on the installation surface FL, heat reception from the adjacent chargers 1 can be suppressed, and the chargers 1 can be cooled by the gaps 17 formed between the side walls 3 of the adjacent two chargers 1. Further, since the side wall 3 of the charger 1 has a trapezoidal shape shorter along the first side of the first surface 1a than the second side of the second surface 1b, the installation area of the charger 1 can be reduced as compared with the case where the side wall has a trapezoidal shape with the first side longer than the second side.

In the above embodiment, lower surface 1a of charger 1 as first surface 1a is smaller than upper surface 1b of charger 1 as second surface 1b, and side wall 3 has a trapezoidal shape shorter along the lower side of lower surface 1a than along the upper side of upper surface 1b in a side view, and the following effects are exhibited. Even when a plurality of chargers 1 standing in the vertical direction are arranged adjacent to each other on the installation surface FL parallel to the horizontal plane, the side walls 3 of the two adjacent chargers 1 do not contact each other, so that heat is less likely to be accumulated between the two adjacent chargers 1, and the cooling performance is less likely to be lowered.

In the above embodiment, the following effects are exhibited by further including the cover member 4 in which the opening 39 is formed so as to be opened to allow the battery 45 to be inserted and removed and which covers the side wall 3 from the outside, and providing the inlet 38 opened so as to allow cooling air to be introduced between the side wall 3 and the cover member 4. The introduction of the cooling air can be controlled by the introduction port 38 between the side wall 3 of the charger 1 and the cover member 4 without providing an opening for the cooling air in the side wall 3 of the charger 1. That is, it is not necessary to specially process the side wall 3 of the charger 1, which is preferable.

In the above embodiment, the battery compartment 6 on which the battery 45 is placed and the board compartment 7 that houses the boards 71 and 72 that control charging of the battery 45 are further provided, and the cooling fan 28, the board compartment 7, and the battery compartment 6 are arranged in this order from the first surface 1a toward the second surface 1b, whereby the following effects are exhibited. Since cooling fan 28, base plate compartment 7, and battery compartment 6 are arranged to overlap from first surface 1a toward second surface 1b, the installation area of charger 1 can be reduced as compared with a case where cooling fan 28, base plate compartment 7, and battery compartment 6 are arranged along first surface 1 a.

In the above embodiment, the inlet 38, which is opened to allow cooling air to be introduced, is provided at a position farther from the installation surface FL than the first surface 1a, and the outlet 25, which is opened to allow cooling air to be discharged, is provided at a position closer to the installation surface FL than the inlet 38, thereby exhibiting the following effects. Since foreign matter such as dust present on the installation surface FL is less likely to be sucked into the interior of the charger 1, a decrease in the performance of the cooling fan 28 can be suppressed. Further, when the cooling fan 28, the base plate chamber 7, and the battery chamber 6 are arranged in this order from the first surface 1a toward the second surface 1b, the cooling air from the inlet port 38 flows in the order of the battery chamber 6 and the base plate chamber 7 and is discharged from the outlet port 25, so that the wind heated by the base plate chamber 7 is less likely to flow into the battery chamber 6, and the thermal influence on the battery chamber 6 can be prevented.

In the above embodiment, the corner of the second surface 1b is arc-shaped, and the following effects are exhibited. Even when a plurality of chargers 1 are arranged and adjacent to each other on the installation surface FL, the corners of the second surfaces 1b of two adjacent chargers 1 do not contact each other (as shown in fig. 14, a gap 16 is generated between the corners of two adjacent chargers 1), and therefore, the flow of wind is less likely to be obstructed at the corners, and the cooling performance is improved.

< modification example >

In the above embodiment, the example in which the installation surface on which charger 1 is installed is flat floor surface FL in the house has been described, but the present invention is not limited to this. For example, the installation surface of the charger 1 may be an outdoor floor surface or an inclined surface inclined with respect to a horizontal plane.

In the above-described embodiment, the description has been given by taking an example in which the lower stage 8 has a rectangular shape as viewed from the moving direction of the stage 8, but the present invention is not limited to this. For example, the stage 8 may have a polygonal shape other than a rectangular shape, or may have a circular shape or an elliptical shape as viewed in the moving direction of the stage 8.

In the above-described embodiment, the example in which the plurality of buffer mechanisms 10 are disposed point-symmetrically with respect to the center position P1 of the stage 8 as the center of symmetry on the opposite side of the stage 8 as viewed in the moving direction of the stage 8 has been described, but the present invention is not limited to this. For example, a plurality of buffer mechanisms 10 may be arranged at random when viewed from the moving direction of the stage 8.

In the above embodiment, the description has been given by taking an example in which a plurality of buffer mechanisms 10 are disposed, but the present invention is not limited to this. For example, only one of the buffer mechanisms 10 may be provided.

In the above-described embodiment, an example has been described in which a plurality of guide mechanisms 11 are disposed so as to surround center of gravity position P2 of battery 45 when viewed from the moving direction of stage 8, but the present invention is not limited to this. For example, the guide mechanism 11 may be disposed in plural so as not to surround the center of gravity P2 of the battery 45. Alternatively, two guide mechanisms 11 may be arranged, and the center of gravity position P2 of the battery 45 and the two guide mechanisms 11 may be arranged in a straight line.

In the above embodiment, the example in which the guide mechanism 11 is disposed in plural number has been described, but the present invention is not limited to this. For example, only one guide mechanism 11 may be provided.

In the above-described embodiment, the example in which the plurality of buffer mechanisms 10 are arranged on both sides of the stage 8 so as to sandwich the guide mechanism 11 when viewed from the moving direction of the stage 8 has been described, but the present invention is not limited to this. For example, a plurality of buffer mechanisms 10 may be arranged on one side or three or more sides of stage 8 so as to sandwich guide mechanism 11. That is, when viewed from the moving direction of the stage 8, a plurality of buffer mechanisms 10 may be arranged on at least one side of the stage 8 so as to sandwich the guide mechanism 11.

In the above-described embodiment, the example in which stage 8 is disposed inside opening 39 has been described, but the present invention is not limited to this. For example, stage 8 may be disposed outside opening 39.

In the above embodiment, the example in which the buffer mechanism 10 and the guide mechanism 11 are separately and independently provided has been described, but the present invention is not limited to this. For example, the buffer mechanism 10 and the guide mechanism 11 may be integrally provided. For example, the buffer mechanism 10 may have a buffer function of the battery 45 and a guide function of the stage 8.

In the above embodiment, the example in which the inlet 38, which is opened so as to allow cooling air to be introduced, is provided between the side wall 3 and the cover member 4 has been described, but the present invention is not limited thereto. For example, an outlet that is open so as to allow cooling air to be discharged may be provided between the side wall and the cover member 4.

According to this configuration, the discharge of the cooling air can be controlled by the discharge port (gap portion) between the side wall 3 of the charger 1 and the cover member 4 without providing the side wall 3 of the charger 1 with an opening for the cooling air. In this configuration, it is also not necessary to perform special processing on the side wall 3 of the charger 1, which is preferable.

That is, a gap portion 38 that is open so as to allow cooling air to be introduced or discharged may be provided between the side wall 3 and the cover member 4.

In the above embodiment, the cooling fan 28, the board chamber 7, and the battery chamber 6 are disposed in this order from the lower surface 1a toward the upper surface 1b of the charger 1, but the present invention is not limited to this. For example, cooling fan 28, battery compartment 6, and board compartment 7 may be arranged in this order from lower surface 1a toward upper surface 1b of charger 1. Battery compartment 6, board compartment 7, and cooling fan 28 may be arranged in this order from lower surface 1a toward upper surface 1b of charger 1. That is, the order of arrangement of cooling fan 28, board chamber 7, and battery chamber 6 may be changed as appropriate depending on the specification (air blowing direction, output, shape, size, etc.) of cooling fan 28 and the specification (internal structure, shape, size, etc.) of charger 1.

In the above embodiment, the example in which the corner of the upper surface 1b of the charger 1 is arc-shaped has been described, but the present invention is not limited to this. For example, the corner of the upper surface 1b of the charger 1 may be inclined with respect to the adjoining two sides. That is, the corner of the upper surface 1b of the charger 1 may be chamfered. Moreover, the corner of the upper surface 1b of the charger 1 may be right-angled.

In the above embodiment, the example in which the inlet 38, which is opened to allow the cooling air to be introduced, is provided at a position farther from the installation surface FL than the first surface 1a, and the outlet 25, which is opened to allow the cooling air to be discharged, is provided at a position closer to the installation surface FL than the inlet 38, has been described, but the present invention is not limited thereto. For example, as shown in fig. 16, an outlet 38 that is open to discharge cooling air may be provided at a position farther from the installation surface FL than the first surface 1a, and an inlet 25 that is open to introduce cooling air may be provided at a position closer to the installation surface FL than the outlet 38. That is, cooling fan 28 can take in cooling air from the lower portion of charger 1 and can discharge air passing through the inside of charger 1 from the upper portion of charger 1. In fig. 16, reference symbol L1 denotes the direction in which the cooling wind (wind) flows.

According to this configuration, since the cooling air from the inlet 25 flows in the order of the substrate chamber 7 and the battery chamber 6 and is discharged from the outlet 38, the cooling air can be directly brought into contact with the substrate (the second control substrate 72 shown in fig. 5), and the cooling efficiency of the substrate can be improved.

In the above embodiment, the example (see fig. 13) in which the separation distance between the cooling fan 28 and the right second control board 72 is larger than the separation distance between the cooling fan 28 and the front second control board 72 (or the rear second control board 72) has been described, but the present invention is not limited to this.

Fig. 17 is a view including a cross section corresponding to fig. 13. In fig. 17, the substrate chamber bottom wall 70 and the like are not shown.

For example, in the plan view of fig. 17, the cooling fan 28 may be disposed at a central position between the right portion of the front second control board 72 and the right portion of the rear second control board 72. The separation interval of the cooling fan 28 from the right second control substrate 72 may be smaller than the separation interval of the cooling fan 28 from the front second control substrate 72 (or the rear second control substrate 72). That is, the cooling fan 28 may be disposed at a position closer to the right second control board 72 than the position of fig. 13.

With this configuration, the cooling efficiency of the right second control board 72 can be improved as compared with the case where the cooling fan 28 is disposed at the position of fig. 13.

For example, as shown in fig. 18, an air guide structure 270 having a plurality of openings 271 may be provided in a central region (a region overlapping with the cooling fan 28 in a plan view) of the substrate main body 20. Each opening 271 is formed in an arc shape concentric with the center position C1 of the air guide structure 270 in a plan view. A plurality of (four in the present modification) bosses 272 for fixing the cooling fan 28 are provided on the outer periphery of the air guide structure 270. As shown in fig. 19, each boss 272 protrudes downward from the substrate body 20. The boss 272 has a function of preventing the opening 271 from being closed from below the substrate main body 20. In fig. 19, reference numeral 273 denotes a bolt (fastening member) for fixing the cooling fan 28 to the boss.

In the cross-sectional view of fig. 19, the substrate main body 20 is provided with a tapered portion 274 that divides each opening 271. In the cross-sectional view of fig. 19, the tapered portion 274 is inclined so as to be positioned further upward as approaching the center position C1 of the air guide structure 270 (the center axis C1 of the cooling fan 28). This can guide the cooling air (wind) along the inclination of the tapered portion 274.

In the above embodiment, the first and second lower extending portions 92 and 93 of the stage support body 90 to which the slider 110 is fixed have been described as an example, but the present invention is not limited to this. For example, as shown in fig. 20, a stage peripheral member 209 including a slider 210 may be integrally formed. For example, a resin material is used as a material for forming the stage periphery member 209. In fig. 20, reference numeral 210 denotes a slider, reference numeral 211 denotes an upper rod support portion that supports the upper end of the piston rod 100, and reference numeral 212 denotes a frame wall having a rectangular frame shape that follows the outer shape of the stage 8 (see fig. 21).

In the present modification, the stage 8 (see fig. 21), the slider 210, the upper lever support portion 211, and the frame wall 212 are integrally formed of the same member. That is, the stage 8 and the stage peripheral member 209 are integrally formed by the same member. This simplifies the peripheral structure including the stage 8, and facilitates assembly of the charger.

In fig. 20, reference numeral 220 denotes a downward extending wall extending downward from four corners of the cover main body 40. The lower projecting wall 220 is disposed inside the frame wall 212. The lower projecting wall 220 functions as a guide wall for guiding the movement of the stage 8 in the vertical direction via the frame wall 212. In fig. 20, the stage peripheral member 209 at the initial position is indicated by a solid line, and the stage peripheral member 209 at a position close to the battery chamber bottom wall (the substrate chamber upper wall 250) is indicated by a two-dot chain line.

Fig. 21 shows stage 8 at the initial position (the uppermost position). Fig. 22 shows a state where the stage 8 has moved to the lowermost position.

However, in the case where the cover main body 40 is provided with the lower protruding wall 220, when the stage 8 moves downward, a gap is generated between the stage 8 and the cover member 4 in the vertical direction. In contrast, in the present modification, by setting the vertical height of frame 212 to a size that closes the gap, even when stage 8 moves downward, it is possible to prevent a gap from being generated between stage 8 and cover member 4. Therefore, it is possible to prevent the article from falling between the stage 8 and the cover member 4.

In the above embodiment, the substrate chamber 7 is described as including the plurality of control substrates 71 and 72 and the substrate chamber bottom wall 70 for housing the plurality of control substrates 71 and 72, but the present invention is not limited thereto. For example, as shown in fig. 20, the substrate chamber 7A may include a substrate chamber upper wall 250 that houses a plurality of control substrates (not shown), and a flange wall 251 that extends downward from the outer periphery of the substrate chamber upper wall 250. That is, the substrate chamber 7A of the present modification has a structure in which the substrate chamber 7 of the embodiment is inverted in the vertical direction. For example, a plurality of control boards (not shown) are fixed to the board chamber upper wall 250 by potting or the like. In this modification, the substrate chamber upper wall 250 also functions as a battery chamber bottom wall.

The plurality of control boards (not shown) are a plurality of first control boards mounted on the central portion of the board chamber upper wall 250 and a plurality of second control boards rising downward from the outer periphery of the board chamber upper wall 250. In the present modification, the height of the second control board is lower than the height of the first control board. The cooling fan 28 is disposed at a position overlapping the central portion of the substrate chamber upper wall 250 in plan view. In other words, the cooling fan 28 is disposed at a position avoiding the plurality of first control boards (a position overlapping the plurality of second control boards in a plan view). That is, the cooling fan 28 is disposed at a lower portion of the substrate. This can shorten the overall height of the charger.

The present invention is not limited to the above-described embodiments, and the saddle-ridden electric vehicle includes all vehicles in which a driver gets on the vehicle body over the vehicle body, and includes not only a motorcycle (including a bicycle with a prime mover and a scooter type vehicle) but also a three-wheeled vehicle (including a vehicle having a front wheel and a rear wheel as well as a vehicle having a front wheel and a rear wheel). The present invention is applicable not only to motorcycles but also to four-wheeled vehicles such as automobiles.

For example, the charger is not limited to a charger for a mobile battery of a motorcycle, and may be applied to a charger for an electric device other than an electric vehicle.

The configuration in the above embodiment is an example of the present invention, and various modifications can be made without departing from the scope of the present invention, and for example, components in the embodiment are replaced with known components.

Description of the symbols:

1: a charger; 1 a: a first face (lower face); 1 b: a second face (upper face); 3: an outer package body (side wall); 4: a cover member; 6: a battery cell; 7: a substrate chamber; 25: an outlet and an inlet; 28: a cooling fan; 38: an inlet port and an outlet port (gap portion); 39: a battery opening (opening); 45: a storage battery; 71. 72: a control substrate (substrate); FL: setting a surface.

Claims (7)

1. A charger for a mobile storage battery, comprising:

a cooling fan (28) disposed inside a charger (1) for a mobile battery (45) of an electric vehicle;

a first surface (1a) that faces a mounting surface (FL) on which the charger (1) is mounted; and

a second surface (1b) that is farther from the installation surface (FL) than the first surface (1a),

the first face (1a) being smaller than the second face (1b),

the side wall (3) of the charger (1) has a trapezoidal shape in side view, wherein a first side along the first surface (1a) is shorter than a second side along the second surface (1 b).

2. The charger for a mobile storage battery according to claim 1,

a lower surface (1a) of the charger (1) as the first surface (1a) is smaller than an upper surface (1b) of the charger (1) as the second surface (1b),

the side wall (3) has a trapezoidal shape in side view, which is shorter along the lower side of the lower surface (1a) than along the upper side of the upper surface (1 b).

3. The charger for a mobile secondary battery according to claim 1 or 2,

the charger for the mobile storage battery further comprises a cover member (4), wherein the cover member (4) is provided with an opening (39) which can be inserted into and taken out of the storage battery (45) and covers the side wall (3) from the outside,

a gap (38) that is open so as to allow cooling air to be introduced or discharged is provided between the side wall (3) and the cover member (4).

4. The charger for a mobile storage battery according to any one of claims 1 to 3,

the charger for a mobile battery further comprises a battery chamber (6) for placing a battery (45) and a substrate chamber (7) for storing substrates (71, 72) for controlling the charging of the battery (45),

the cooling fan (28), the substrate chamber (7), and the battery chamber (6) are arranged in this order from the first surface (1a) toward the second surface (1 b).

5. The charger for a mobile storage battery according to any one of claims 1 to 4,

an inlet (38) opened to allow cooling air to be introduced is provided at a position farther from the installation surface (FL) than the first surface (1a),

an outlet (25) which is open so as to be able to discharge the cooling air is provided at a position closer to the installation surface (FL) than the inlet (38).

6. The charger for a mobile storage battery according to any one of claims 1 to 4,

an outlet (38) which is opened so as to be able to discharge cooling air is provided at a position that is farther from the installation surface (FL) than the first surface (1a),

an inlet (25) that is open so as to allow the cooling air to be introduced is provided at a position closer to the installation surface FL than the outlet (38).

7. The charger for a mobile storage battery according to any one of claims 1 to 6,

the corner of the second surface (1b) is arc-shaped.

Images