TW201939847A - Charger for portable battery - Google Patents

Abstract

A charger for a portable battery includes a cooling fan (28) disposed inside a charger (1) of a portable battery (45) used for an electric vehicle, a first surface (1a) facing an installation surface (FL) on which the charger (1) is installed, and a second surface (1b) farther from the installation surface (FL) than the first surface (1a), wherein the first surface (1a) is smaller than the second surface (1b), and in a side view, a 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).

Description

   Charger for portable battery   

The invention relates to a charger for a portable battery.

This invention claims priority based on Japanese Patent Application No. 2018-044466 filed in Japan on March 12, 2018, and the contents are incorporated herein by reference.

Conventionally, a charger for charging a battery used in an electric vehicle is disclosed in, for example, Patent Document 1. Patent Document 1 discloses a portable power supply device including a battery that supplies operating power to electrical equipment, and a charger that detachably mounts the battery and charges the battery.

    [Prior technical literature]         [Patent Literature]    

[Patent Document 1] Japanese Patent Laid-Open No. 2013-99200

However, in a charger that charges a battery used in a two-wheeled locomotive or the like, it is desirable to cool the charger from the viewpoint that the current value used for charging increases.

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

As a means of solving the above-mentioned problems, aspects of the present invention have the following configuration.

(1) The charger of the portable battery according to the aspect of the present invention is provided with a cooling fan (28), which is arranged on the charger (1) of the portable battery (45) used in electric vehicles. Inside; first surface (1a) opposite to the installation surface (FL) on which the charger (1) is provided; and second surface (1b), which is farther from the above than the first surface (1a) Installation surface (FL); the first surface (1a) is smaller than the second surface (1b), and the side wall (3) of the charger (1) is formed along the first surface ( The first side of 1a) is shorter in trapezoidal shape than the second side along the second surface (1b).

(2) The portable battery charger according to the above (1), wherein the lower surface (1a) of the charger (1) which is also the first surface (1a) may be used as the second surface ( The upper surface (1b) of the charger (1) of 1b) is small, and the side wall (3) is formed along the lower surface (1a) above the upper surface (1b) in a side view. It is a short trapezoidal shape.

(3) The portable battery charger as described in (1) or (2) above, which may further include a case member (4), which is formed so as to be insertable and removable. An opening (39) that is open in the manner of the battery (45) and covers the side wall (3) from the outside. Between the side wall (3) and the casing member (4), a cooling air can be introduced or discharged. Way (38).

(4) The portable battery charger according to any one of (1) to (3) above, which may further include: a battery chamber (6) on which the battery (45) is placed; and a substrate chamber (7) It contains substrates (71, 72) for controlling the charging of the battery (45); and the cooling fans (in the order from the first surface (1a) to the second surface (1b)) 28). The substrate chamber (7) and the battery chamber (6).

(5) The charger for a portable battery according to any one of (1) to (4) above, wherein the charger is further away from the installation surface (FL) than the first surface (1a). The position is provided with an introduction port (38) which is opened so that cooling air can be introduced, and is located closer to the above-mentioned installation surface (FL) than the above-mentioned introduction port (38), and is provided to discharge the above-mentioned cooling air. Way opening (25).

(6) The charger for a portable battery according to any one of (1) to (4) above, wherein the charger is further away from the installation surface (FL) than the first surface (1a). A position is provided with a discharge port (38) which is opened so as to be able to discharge the cooling air, and is located closer to the installation surface FL than the above-mentioned discharge port (38), and is provided so as to be capable of introducing the cooling air. The inlet (25).

(7) The charger for a portable battery according to any one of (1) to (6) above, wherein the corners of the second surface (1b) may be formed in an arc shape.

The portable battery charger according to the above (1) of the present invention has a cooling fan disposed inside the charger, so the cooling fan can blow the cooling air into the charger, so it can be cooled. charger. In addition, the charger is provided with: a first surface facing the installation surface on which the charger is provided; and a second surface that is farther from the installation surface than the first surface; the first surface is smaller than the second surface In a side view, the side wall of the charger is formed into a trapezoidal shape shorter than the first side along the first surface than the second side along the second surface, and thus exhibits the following effects. For example, when the side walls of the charger are formed into a rectangle in a side view, when a plurality of chargers are arranged on the installation surface and are adjacent to each other, the side walls of two adjacent chargers come into contact with each other, so that heat is easily trapped. Between two adjacent chargers, there is a high possibility that the cooling performance will decrease. In contrast, according to the invention described in claim 1, the side wall of the charger is formed in a trapezoidal shape in a side view, so that even when a plurality of chargers are arranged adjacent to each other on the installation surface, two adjacent ones are adjacent. The side walls of the two chargers do not come into contact with each other (because there is a gap between the side walls of two adjacent chargers), so heat is not easily trapped between the two adjacent chargers, and the possibility of cooling performance is lower than low. In addition, even when a plurality of chargers are arranged adjacent to each other on the installation surface, the heat obtained from the adjacent chargers can be suppressed, and the heat generated between the side walls of two adjacent chargers can be used. To cool the charger. In addition, the side wall of the charger is formed in a trapezoidal shape that is shorter along the first side along the first side than the second side along the second side, thereby forming a trapezoidal shape that is longer than the second side with the first side. Compared with the situation, the installation area of the charger can be made smaller.

According to the portable battery charger of 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 is formed along the side in a side view. The lower side of the lower side has a trapezoidal shape that is shorter than the upper side of the upper side, and thus has the following effects. That is, in the case where a plurality of chargers standing up and down are arranged adjacent to each other on a setting surface parallel to the horizontal plane, the side walls of two adjacent chargers do not contact each other, so heat is not easily trapped in the adjacent Between the two chargers, there is less chance of reduced cooling performance.

The portable battery charger according to the above (3) of the present invention further includes a case member formed with an opening portion that is openable for inserting and removing the battery, and covering the side wall from the outside, Since a gap portion is provided between the side wall and the casing member so as to allow cooling air to be introduced or discharged, the following effects are exhibited. It is not necessary to provide an opening for cooling air on the side wall of the charger, but to control the introduction or discharge of the cooling air by using the gap between the side wall of the charger and the casing member. That is, it is not necessary to perform special processing on the side wall of the charger, and it is preferable.

The portable battery charger according to the above (4) of the present invention further includes: a battery chamber on which the battery is placed; and a substrate chamber on which the substrate for charging control of the battery is housed; and from the first side Since the cooling fan, the substrate chamber, and the battery chamber are sequentially arranged toward the second surface, the following effects are exhibited. The cooling fan, the substrate chamber, and the battery chamber are arranged so as to overlap from the first surface to the second surface, and are compared with the case where the cooling fan, the substrate chamber, and the battery chamber are arranged along the first surface. , Can make the installation area of the charger smaller.

According to the present invention (5), the portable battery charger is provided at a position farther away from the installation surface than the first surface, and is provided with an introduction port that is opened in a manner capable of introducing cooling air. The position close to the installation surface is provided with a discharge port which is opened so as to discharge cooling air, and thus has the following effects. Foreign matter such as dust existing on the installation surface is not easily sucked into the charger, so the performance of the cooling fan can be suppressed from decreasing. In addition, when the cooling fan, the substrate chamber, and the battery chamber are sequentially arranged from the first surface to the second surface, the cooling air from the introduction port flows in the order of the battery chamber and the substrate chamber and is discharged from the discharge port. Therefore, the possibility of the warming wind flowing through the substrate chamber to the battery chamber is low, and thermal influence on the battery chamber can be prevented.

The portable battery charger according to the above (6) of the present invention is provided at a position farther from the installation surface than the first surface, and is provided with a discharge port that is opened in a manner capable of discharging cooling air. The position close to the installation surface is provided with an introduction port which is opened so that cooling air can be introduced, and thus has the following effects. In the case where the cooling fan, the substrate chamber, and the battery chamber are sequentially arranged from the first surface to the second surface, the cooling air from the introduction port flows in the order of the substrate chamber and the battery chamber and is discharged from the discharge port, so it can be made The cooling air directly contacts the substrate, and the cooling efficiency of the substrate is improved.

According to the portable battery charger of the above (7) of the present invention, the corner portion of the second surface is formed in an arc shape, and therefore the following effects are exhibited. That is, in the case where a plurality of chargers are arranged on the installation surface and are adjacent to each other, the corners of the second surface of the two adjacent chargers will not contact each other (because of the corners of the two adjacent chargers) There is a gap between them), so it is not easy to hinder the flow of wind at the corners, and the cooling performance is improved.

1‧‧‧ Charger

1a‧‧‧First side (below)

1b‧‧‧Second side (top)

2‧‧‧ abutment (bottom of charger)

3‧‧‧ Outer body (side wall)

4‧‧‧shell components

6‧‧‧ Battery Room

7, 7A‧‧‧ substrate room

8‧‧‧ mounting table

8a‧‧‧front

8b‧‧‧ behind

8c‧‧‧left

8d‧‧‧ right

9‧‧‧Terminal

10‧‧‧ Buffering Agency

11‧‧‧Guiding agency

15‧‧‧ clearance

16‧‧‧ Clearance

17‧‧‧ clearance

20‧‧‧ abutment body

21‧‧‧foot

22‧‧‧ abutment flange

23‧‧‧ recess

24‧‧‧ Drain

25‧‧‧Exhaust outlet, inlet

27‧‧‧ Power Plug

28‧‧‧ cooling fan

31‧‧‧ front wall

32‧‧‧ rear wall

33‧‧‧Left wall

34‧‧‧ right wall

35‧‧‧ Recess (trapezoidal recess)

38‧‧‧ inlet, outlet (clearance)

39‧‧‧battery opening (opening)

39a‧‧‧ leading edge

39b‧‧‧

39c‧‧‧Left Margin

39d‧‧‧Right edge

40‧‧‧ Housing

41‧‧‧Shell side flange

45‧‧‧ Battery

45a‧‧‧front

45b‧‧‧ behind

45c‧‧‧left

45d‧‧‧ right

46‧‧‧Grip

47‧‧‧The largest protruding end below (the most protruding part toward the terminal part)

50‧‧‧ frame-like frame

51‧‧‧ Plate-shaped first plate

52‧‧‧ Plate-shaped second plate

53‧‧‧Link Post

55‧‧‧The first board connecting piece

60‧‧‧Bottom wall of battery room

61‧‧‧Battery chamber side wall

62‧‧‧ Battery Chamber Flange

65‧‧‧ discharge pipe

66‧‧‧Emission connection

70‧‧‧ bottom wall of substrate chamber

71, 72‧‧‧Control board (substrate)

73‧‧‧ spacer

80‧‧‧ terminal opening

81‧‧‧Communication opening

82‧‧‧Drain recess

83‧‧‧drain hole

85‧‧‧ cover

86‧‧‧ Cover body

87‧‧‧ Cover extension

88‧‧‧ through hole

90‧‧‧ mounting table support

91‧‧‧ Left and right outer extensions

92‧‧‧First lower extension

93‧‧‧Second lower extension

94‧‧‧ front lower extension

96‧‧‧Terminal support plate

100‧‧‧Piston rod

101‧‧‧ cylinder cylinder

110‧‧‧ slider

111‧‧‧ track

130‧‧‧LED substrate

131‧‧‧LED components

132‧‧‧Fixed components

209‧‧‧Peripheral parts

210‧‧‧ Slider

211‧‧‧pole support

212‧‧‧Frame wall

220‧‧‧ extension wall below

250‧‧‧ Upper wall of substrate chamber

251‧‧‧ flange wall

270‧‧‧Wind-conducting structure

271‧‧‧ opening

272‧‧‧ convex seat

273‧‧‧bolt (connection member)

274‧‧‧taper

C1‧‧‧ the center position of the wind guide structure

CL‧‧‧ center axis

FL‧‧‧ Setting surface

FR‧‧‧Front

LH‧‧‧Left

P1‧‧‧center

P2‧‧‧gravity position

UP‧‧‧above

V1‧‧‧ Direction of cooling air (wind) flow

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 a V-V cross section of Fig. 2.

FIG. 6 is a perspective view of the inside of the charger of the embodiment.

FIG. 7 is a view in which the cover and the connecting post are removed in FIG. 6.

Fig. 8 is a perspective view of a peripheral portion of a discharge pipe according to an embodiment.

FIG. 9 is a plan view showing a charger and a battery together with the embodiment.

FIG. 10 is a rear view showing a charger and a battery together with the embodiment.

FIG. 11 is an explanatory diagram of an arrangement position of a terminal portion in the embodiment.

FIG. 12 is an explanatory diagram of the 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 chargers of a plurality of embodiments are arranged on the installation surface and adjacent to each other.

FIG. 15 is a front view showing a state in which chargers of a plurality of embodiments are arranged on the installation surface and are adjacent to each other.

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 a cooling fan according to a modification of the embodiment.

FIG. 18 is a bottom view of a wind guide structure of a cooling fan according to a modification of the embodiment.

FIG. 19 is a view including a cross section XIX-XIX 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 where a mounting table is positioned at the uppermost position in a modification of the embodiment.

FIG. 22 is a perspective view showing a state where the mounting table is moved to the lowermost position in a modification of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same symbols are assigned to the same components. In the embodiment, as an example of a charger for a portable battery, a charger for a portable battery (mobile battery) used in an electric two-wheeled locomotive (saddle-type electric vehicle) will be described. In the embodiment, the setting surface of the charger (hereinafter also referred to as "charger") provided with a portable battery (hereinafter also referred to simply as "battery") is set as a flat floor indoors.

<Charger 1>

As shown in FIG. 1, the charger 1 is provided with: a base 2, which constitutes the bottom of the charger 1; an exterior body 3, which constitutes the side wall of the charger 1; and a housing member 4, which is formed so that the battery can be inserted and removed. 45 (refer to FIG. 10) in an opening manner 39 (hereinafter also referred to as “battery opening 39”); a frame 5 (refer to FIG. 6), which constitutes the skeleton of the charger 1; a battery chamber 6 (refer to FIG. 5), The battery 45 is mounted thereon; the substrate chamber 7 (refer to FIG. 5) houses a substrate for controlling the charging of the battery 45; the mounting table 8 can mount the battery 45; and the terminal portion 9 (refer to FIG. 5) can be mounted thereon. Fitted to the battery 45; the buffer mechanism 10 (see FIG. 6) that suppresses the fitting speed of the battery 45 to the terminal portion 9; the guide mechanism 11 (see FIG. 6) that guides the mounting table 8; and a cooling fan 28 ( Refer to FIG. 3), which is arranged inside the charger 1.

In the following description, the depth direction when the charger FL is installed on the ground FL (the direction orthogonal to the paper surface shown in FIG. 4) is set to the “front-rear direction”, and the normal direction of the ground FL (the vertical direction) is set. ) Is set to the "up and down direction", and the direction orthogonal to each of the back and forth direction and the up and down direction is set to "the left and right direction". In the figure, the arrow FR indicates the front, the arrow UP indicates the upper side, and the arrow LH indicates the left side.

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

<Abutment 2>

When viewed from the bottom of FIG. 3, the abutment 2 is formed in a rectangular shape with long sides in the left-right direction. The four corners of the abutment 2 are formed in an arc shape protruding outward. As shown in FIG. 5, the abutment 2 is provided with: a base body 20 that supports the constituent elements of the charger 1 from below; feet 21 that extend from the four corners of the abutment body 20 toward the ground; and abutment flanges 22, which extends upward from four sides of the abutment 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 is provided with a recessed portion 23 that forms a gap with the floor FL. In the sectional view of FIG. 5, the recessed portion 23 is formed by the lower surface of the base body 20 and the outer surfaces of the pair of leg portions 21. A drainage port 24 (see FIG. 3) is provided in the recessed portion 23 and communicates with the discharge pipe 65 (see FIG. 8).

<Exterior body 3>

As viewed before FIG. 4, the exterior body 3 (the side wall 3 of the charger 1) is formed in a trapezoidal shape that is shorter along the lower side of the lower surface 1 a of the charger 1 than the upper side of the charger 1. The exterior body 3 is formed in a rectangular tube shape extending in the up-down direction so that the opening area becomes larger toward the upper side. The lower end of the exterior body 3 is combined with the abutment 2.

As shown in FIG. 3, the left-right width of the exterior body 3 is larger than the front-back width of the exterior body 3. The exterior body 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 face each other at intervals in the front-rear direction. The left wall 33 and the right wall 34 face each other at intervals in the left-right direction. The front wall 31, the rear wall 32, the left wall 33, and the right wall 34 are mutually connected to adjacent walls. The front wall 31, the rear wall 32, the left wall 33, and the right wall 34 are integrally formed by the same member. In the bottom view of Figure 3, the connecting portions of the front and rear walls 31, 32 and the left and right walls 33, 34 are formed into an arc shape protruding outward.

As shown in FIG. 4, a trapezoidal concave portion 35 (hereinafter also referred to as a “trapezoidal concave portion 35”) that is recessed upward is provided at the lower portion of the exterior body 3. The trapezoidal recess 35 is provided at the center of the lower part of each of the front wall 31, the rear wall 32, the left wall 33, and the right wall 34. A part of the abutment 2 is exposed to the outside by the trapezoidal recess 35.

<Shell member 4>

In the plan view of FIG. 2, the case member 4 is formed in a rectangular frame shape having long sides in the left-right direction. In the plan view of FIG. 2, the outer shape of the housing member 4 is larger than that of the abutment 2 (see FIG. 3). The four corners (the corners of the upper surface 1b of the charger 1) of the case member 4 are formed in an arc shape protruding outward.

As shown in FIG. 4, the case member 4 is attached to the upper end portion of the exterior body 3. The case member 4 covers the exterior body 3 from above. An introduction port 38 (gap portion) is provided between the upper end of the exterior body 3 and the case member 4 so as to allow cooling air to be introduced.

As shown in FIG. 5, the case member 4 includes a case body 40 that forms a battery opening 39 and a case-side flange 41 that extends downward from the case body 40. In the plan view of FIG. 9, the battery opening 39 has a contour substantially the same as that of the battery 45.

As shown in FIG. 10, the battery 45 is formed in a rectangular parallelepiped shape. For example, the battery 45 is a lithium-ion battery 45.

In the plan view of FIG. 9, the battery 45 has a front side 45a extending in the left-right direction, a rear side 45b formed in a curved shape protruding toward the rear, and a left side 45c and a right side 45d, which are equal to the front and back, Direction. In FIGS. 9 and 10, reference numeral 46 denotes a holding portion (handle) for holding the battery 45.

In the plan view of FIG. 9, the battery opening 39 is divided into: a leading edge 39 a that extends in the left-right direction; a trailing edge 39 b that is formed in a curved shape protruding toward the rear; and a left and right pair of left edges 39 c and The right edge 39d is equal to extending in the front-rear direction.

With this, even if the battery 45 is to be inserted into the battery opening 39 in a state where the battery 45 is reversed, the battery 45 cannot be inserted because the convex portion of the rear edge 45b of the battery 45 touches the leading edge 39a of the battery opening 39. To the battery opening 39.

<Frame 5>

As shown in FIG. 6, the frame 5 is provided with: a frame-shaped frame 50 that is disposed on the upper portion of the charger 1; and a plate-shaped first plate 51 that is disposed above and below the frame 50 and the base 2; The plate-like second plate 52 is arranged above and below the first plate 51 and the base 2; and a plurality of connecting columns 53 that connect the frame body 50, the first plate 51 and the second plate 52.

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

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

The connecting post 53 extends in the vertical direction. The upper end portion of the connecting post 53 extends upward from the frame 50. The lower end of the connecting post 53 is connected to the abutment 2 (abutment body 20). In the embodiment, one connecting post 53 is arranged at each of the front part, the left part, and the right part of the charger 1, and three parts are arranged in total. The upper half of the connecting post 53 constitutes a guide mechanism 11 that guides the mounting table 8.

A frame 50 is connected to the upper portion of the connecting post 53 from the outside.

A first plate 51 is connected to the upper and lower middle portions of the connecting post 53. In FIG. 6, reference numeral 55 denotes a first plate connecting piece which extends from the outer peripheral end of the first plate 51 to the outside to form an insertion portion (a connecting portion) of the connecting post 53.

<Battery chamber 6>

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

The battery chamber bottom wall 60 is formed in a rectangular plate shape. The battery chamber bottom wall 60 is fixed on the first plate 51. In a space above the bottom wall 60 of the battery chamber, a battery 45 (see FIG. 10) and a mounting table 8 are stored. The outer shape of the battery chamber bottom wall 60 is larger than that of the battery 45 and the mounting table 8.

The battery chamber side wall 61 is erected upward from the outer periphery of the battery chamber bottom wall 60.

On the outer side of the battery chamber side wall 61, a flange portion 62 (hereinafter also referred to as "battery chamber flange 62") extending upward from the outer periphery of the battery chamber bottom wall 60 is provided. As shown in FIG. 6, the battery chamber flange 62 is provided at the same height throughout the entire circumference of the battery chamber bottom wall 60.

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

<Substrate chamber 7>

As shown in FIG. 5, the substrate chamber 7 is disposed below the battery chamber 6. In a plan view, the substrate chamber 7 is disposed more inward than the outer peripheral edge of the battery chamber bottom wall 60. 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 a plan view.

The substrate chamber 7 is provided with a plurality of substrates 71 and 72 (hereinafter also referred to as “control substrates 71 and 72”), which perform charging control of the battery 45 (see FIG. 10), and a substrate chamber bottom wall 70, which houses A plurality of control boards 71 and 72.

The plurality of control substrates 71 and 72 are a plurality of first control substrates 71 mounted on a central portion of the substrate chamber bottom wall 70 and a plurality of second control substrates 72 standing upward from the periphery of the substrate chamber bottom wall 70.

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

The plurality of second control substrates 72 are arranged so that the control circuit for controlling the charging of the battery 45 faces the inside (the center of the substrate chamber 7). The second control substrate 72 functions as a side wall of the battery chamber 6. The outer surface of the second control substrate 72 faces the inner surface of the exterior body 3. Furthermore, a heat sink or a heat sink may be provided on the outer surface of the second control substrate 72.

The substrate chamber bottom wall 70 is formed in 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. Furthermore, a heat sink or a heat sink may be provided below the bottom wall 70 of the substrate chamber.

<Mounting table 8>

As shown in FIG. 5, the mounting table 8 is disposed inside the battery opening 39. The mounting table 8 is movable in the vertical direction. The terminal portion 9 is disposed below the mounting table 8 in a state where the battery 45 is not placed on the mounting table 8 (the position of the mounting table 8 shown by the two-point chain line in FIG. 5). When the battery 45 is placed on the mounting base 8, the mounting base 8 is fitted to the terminal portion 9 by moving downward. In FIG. 5, a state where the mounting table 8 is moved to the lowermost position is indicated by a solid line.

The mounting table 8 is formed in a rectangular shape in a plan view in FIG. 2. The mounting table 8 has an outer shape substantially the same as the outer shape of the battery 45 (see FIG. 9) in a plan view. In the plan view of FIG. 2, the mounting table 8 has: a front side 8 a extending in the left-right direction; a rear side 8 b formed in a curved shape protruding toward the rear; Extend in the front-back direction.

The mounting base 8 is provided with a terminal opening 80 opened at a portion corresponding to the terminal portion 9 and a communication opening 81 communicating with the inside of the charger 1.

The terminal opening 80 is arranged at the rear of the mounting table 8. In the plan view of FIG. 2, the terminal opening 80 extends in the left-right direction.

The communication opening 81 is arranged in front of the mounting table 8 (in front of the terminal opening 80). In the plan view of FIG. 2, the communication opening 81 is formed in a rectangular shape with long sides in the left-right direction.

A cover 85 is provided on the mounting table 8 so as to cover the communication opening 81. The cover 85 is detachably attached to the mounting table 8. In the plan view of FIG. 2, the cover body 85 is provided with: a cover body 86 formed in a rectangular shape larger than the communication opening 81 (see FIG. 7); and a pair of left and right cover extension pieces 87 which are self-covered. The left and right outer ends of the body main body 86 extend outward. In FIG. 2, reference numeral 88 denotes an insertion hole, which is a connection member through which a bolt or the like for fixing the cover extension piece 87 to the mounting table 8 is inserted. FIG. 7 shows a state where the lid body 85 is removed from the mounting table 8.

Drainage recesses 82 are provided at four corners of the mounting table 8 and recessed downward. In the plan view of FIG. 2, the drainage recess 82 is formed in a circular shape. The drainage recessed portion 82 is inclined and recessed so as to be located further downward toward the center side. The corners of the front portion of the cover 85 form a drainage recess 82 together with the mounting table 8. A drainage hole 83 is provided in the center of the drainage recessed portion 82 and penetrates the mounting table 8 in the thickness direction (up-down direction).

As shown in FIG. 7, a mounting table support 90 that supports the mounting table 8 from below is mounted below the mounting table 8. The mounting table support 90 includes: a pair of front and rear left and right outer extensions 91 that extend toward the left and right outer sides than the left and right sides of the mounting table 8; and a first lower extension 92 that is more front than the front of the mounting table 8 Extending downward; a pair of left and right second lower extensions 93 extending downward from the left and right side portions of the mounting table 8; and a forward and lower extending portion 94 forward from the second lower extending portion 93 Outside extension.

As shown in FIG. 6, on the left and right side portions of the mounting table 8, there are provided mounting table energizing members 95 that always energize the mounting table 8 upward. The mounting table energizing members 95 are paired on the left and right sides of the charger 1 and are provided one each. In the embodiment, the mounting table energizing member 95 is a coil spring extending in the vertical direction.

The upper ends of the mounting table enabling members 95 are attached to the left and right side portions of the frame 50. The lower end of the mounting table enabling member 95 is attached to the lower end of the lower extension portion 94 in front of the mounting table support 90.

The mounting table enabling member 95 moves the mounting table 8 which is moved downward when the battery 45 (see FIG. 10) is placed on the mounting table 8. Specifically, when the mounting table enabling member 95 is not placed on the mounting table 8, the mounting table 8 stored in the battery chamber 6 is returned to a position before the battery 45 is placed on the mounting table 8. . That is, when the battery 45 is removed from the terminal portion 9 and the battery 45 is taken out of the battery opening 39, the mounting table enabling member 95 returns the mounting table 8 stored in the battery chamber 6 to its original position.

In FIG. 5, the mounting table 8 moving to the bottom is shown by a solid line, and the mounting table 8 before moving to the bottom (the original position) is shown by a two-point chain line.

<Terminal part 9>

As shown in FIG. 5, the terminal portion 9 is in a state in which the battery 45 is not placed on the mounting table 8, and is disposed opposite to the mounting table 8 at a position (upper position) on the side on which the battery 45 is placed. Side position (lower position). The terminal portion 9 is fixed to a terminal support plate 96 extending in the left-right direction. Both left and right ends of the terminal support plate 96 are fixed to the upper surface of the battery chamber bottom wall 60 via pillar members (not shown) extending in the vertical direction.

A portion of the terminal portion 9 which is higher than 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 lower portion of the terminal portion 9 than the lower surface of the terminal support plate 96 is electrically connected to the control substrates 71 and 72 via various wirings (not shown).

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

As shown in FIG. 11, the terminal portion 9 is disposed lower than the portion 47 (hereinafter, also referred to as the “lowest largest protruding end 47”) that protrudes toward the terminal portion 9 when the battery 45 is inserted obliquely into the battery opening 39. position.

Here, the largest protruding end 47 below the battery 45 means that when the rectangular parallelepiped battery 45 is inserted obliquely into the battery opening 39, the central axis CL of the battery opening 39 bisects the corner of the rectangular parallelepiped battery 45 in half. The lower end of the position. That is, the maximum protruding end 47 below the battery 45 is the lower end when the central axis CL of the battery opening 39 becomes a bisector of a corner of the battery 45.

<Buffer mechanism 10>

The buffer mechanism 10 (see FIG. 6) suppresses the fitting speed of the battery 45 toward the terminal portion 9 (see FIG. 5) when the battery 45 (see FIG. 10) is placed on the mounting table 8. Here, the fitting speed means a speed when the terminal portion 9 is fitted to the bottom of the battery 45. The fitting speed is a relative speed of the battery 45 and the terminal portion 9 at the time of fitting. In the embodiment, the terminal portion 9 is fixed at a fixed position with respect to the battery chamber bottom wall 60, so the fitting speed is the downward moving speed (falling speed) of the battery 45. According to the embodiment, since the fitting speed of the battery 45 to the terminal portion 9 is slower than that of the configuration without the buffer mechanism 10, it is possible to avoid the impact on the terminal portion 9.

In the plan view of FIG. 2, a plurality of buffer mechanisms 10 are arranged on the opposite sides of the mounting table 8 with point symmetry at the center position P1 of the mounting table 8 in a symmetrical manner. In the embodiment, two cushioning mechanisms 10 are arranged on the left side 8c and the right side 8d of the mounting table 8 so as to have two symmetry (the left-right axis is a symmetrical axis and the line is symmetrical). In the plan view of Fig. 2, the two buffer mechanisms 10 are arranged on both sides of the mounting table 8 (left side 8c and right side 8d), and are arranged so as to sandwich the guide mechanism 11 from the outside in the front-rear direction.

As shown in FIG. 6, the buffer mechanism 10 is provided with a piston rod 100 extending in the up-down direction, a cylindrical cylinder 101 accommodating the piston rod 100 slidably, and an energizing member (not shown) such as a spring. (Hereinafter also referred to as "return spring"), which energizes the piston rod 100 upward. For example, as the buffer mechanism 10, a damper of a mass product is used.

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

<Guiding Mechanism 11>

The guide mechanism 11 (see FIG. 6) guides the mounting table 8 when the battery 45 (see FIG. 10) is placed on the mounting table 8.

In the plan view of FIG. 2, a 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 position of the center of gravity of the battery 45 is substantially the same as the center position of the battery 45. In the embodiment, three guide mechanisms 11 are arranged so as to form a triangular area surrounding the center of gravity position P2 of the battery 45 (the area surrounded by a one-point chain line formed as an inverted triangle in a plan view in FIG. 2).

One of the three guide mechanisms 11 is arranged on each of the three sides of the mounting table 8. In the embodiment, one of the three guide mechanisms 11 is arranged on each of the front side 8a, the left side 8c, and the right side 8d of the mounting table 8.

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

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

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

As shown in FIG. 6, the guide mechanism 11 is provided with the slider 110 (refer FIG. 7), and the rail 111 which supports the slider 110 slidably.

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 mounting table support 90.

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

<Cooling fan 28>

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

In the bottom view of FIG. 3, the lower part of the cooling fan 28 is exposed below the base body 20. As shown in FIG. 12, the recessed portion 23 of the base 2 is formed with a discharge port 25 (gap) that is opened so that cooling air can be discharged from the floor FL. The discharge port 25 is disposed at a position closer to the floor FL than the introduction port 38.

For example, the cooling fan 28 is an axial fan. The cooling fan 28 introduces cooling air from an introduction port 38 disposed at a position remote from the floor FL, and discharges the cooling air from an exhaust port 25 disposed at a position closer to the floor FL than the introduction port 38. That is, the cooling fan 28 draws in cooling air from the upper portion of the charger 1, and discharges the wind passing through the inside of the charger 1 from the lower portion of the charger 1. In FIG. 12, the symbol V1 indicates the direction in which the cooling wind (wind) flows.

<Position Relationship Between Cooling Fan 28 and Second Control Board 72>

FIG. 13 is a view including a XIII-XIII cross section of FIG. 5. In FIG. 13, illustrations of the substrate chamber bottom wall 70 and the like are omitted.

In the plan view of FIG. 13, the cooling fan 28 is disposed at the center of the base body 20. In the plan view of FIG. 13, the three second control substrates 72 are arranged so that the control circuit for controlling the charging of the battery 45 faces the inside (the center of the substrate chamber 7). On the inner surface of the second control substrate 72, a plurality of control chips including a control circuit are provided.

The outer surface of the second control substrate 72 is opposed to the inner surface of the exterior body 3 at a distance. The gap 15 between the outer surface of the second control substrate 72 and the inner surface of the exterior body 3 functions as a passage for cooling air. That is, the cooling surface of the second control substrate 72 is arranged so as to face the inner surface of the exterior body 3.

In the plan view of FIG. 13, the three second control substrates 72 are arranged in a U shape that is opened to the left. 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 exterior body 3 at intervals. The cooling fan 28 is arranged in an area surrounded by the three second control boards 72.

Hereinafter, the second control substrate 72 facing the front wall 31 of the exterior body 3 is also referred to as "front second control substrate 72", and the second control substrate 72 facing the rear wall 32 of the exterior body 3 is also referred to as "front second control substrate 72". The second control board 72 that is opposed to the right wall 34 of the exterior body 3 is also referred to as a "second 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 substrate 72 and the rear second control substrate 72. The separation interval between the cooling fan 28 and the right second control substrate 72 is larger than the separation interval between the cooling fan 28 and the front second control substrate 72 (or the rear second control substrate 72).

<LED substrate 130>

As shown in FIG. 9, an LED substrate 130 may be provided on the casing body 40. The LED substrate 130 is disposed between the housing body 40 and the guide mechanism 11 in the up-down direction. The LED substrate 130 is formed in a rectangular plate shape having long sides in the left-right direction. On the LED substrate 130, a plurality of LED elements 131 are arranged in a linear arrangement at intervals in the left-right direction. The left and right end portions of the LED substrate 130 are attached to the case body 40 at positions avoiding the guide mechanism 11. For example, the left and right end portions of the LED substrate 130 are fixed to the case body 40 by fixing members 132 such as self-tapping screws. The guide mechanism 11 is disposed at a position overlapping the left and right central portions of the LED substrate 130 in a plan view. In a plan view, the guide mechanism 11 is located further rearward than the front end of the LED substrate 130.

The portion (front side portion extending in the left-right direction) of the housing body 40 where the LED substrate 130 is provided has a width (front-rear length) at least as much as the LED substrate 130. In the embodiment, the guide mechanism 11 is arranged with a width equivalent to that of the LED substrate 130. Specifically, a guide mechanism 11 is disposed in a portion of the housing body 40 where the LED substrate 130 is provided, and a guide portion 11 is not provided in a portion where the LED substrate 130 is not provided (a rear portion extending in the left-right direction).引 机构 11。 Lead mechanism 11. Thereby, the width of the portion where the LED substrate 130 is not provided can be made as narrow as possible, and the installation area of the charger 1 can be made small.

<Action>

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

In the embodiment, in a state where the battery 45 is not placed on the mounting table 8 (hereinafter also referred to as “initial state”), the mounting table 8 is disposed inside the battery opening 39 (see FIG. 5). In the initial state, the terminal portion 9 is disposed below the mounting table 8. In FIG. 5, the two-point chain line shows the mounting table 8 at the position of the initial state.

When the battery 45 is placed on the mounting table 8 in the initial state, the mounting table 8 moves downward with the battery 45 and approaches the bottom wall 60 of the battery chamber. In FIG. 5, the mounting table 8 located at a position close to the bottom wall 60 of the battery chamber is indicated by a solid line.

In the embodiment, the left and right pair of mounting table enabling members 95 (only the left mounting table enabling member 95 is shown in FIG. 6) are always charging the mounting table 8 upward, so the mounting table 8 series battery 45 Together, they move downward against the force of the mounting table energizing member 95.

In addition, in the embodiment, one of the three guide mechanisms 11 (see FIG. 6) is disposed on each of three sides of the mounting table 8, so that the mounting table 8 and the battery 45 can be smoothly moved downward together. As the mounting table 8 moves downward, the terminal portion 9 slowly protrudes upward from the terminal opening 80.

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

In the embodiment, the two buffer mechanisms 10 (refer to FIG. 6) are arranged on both sides of the mounting table 8 so as to sandwich the guide mechanism 11 from the outside in the front-rear direction, so that the battery 45 can be evenly restrained toward the terminal portion 9. The load applied to the terminal portion 9 at the time of fitting.

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

In the embodiment, the left and right pair of mounting table enabling members 95 (see FIG. 6) always energize the mounting table 8 upward, so that the mounting table 8 without the battery 45 can be smoothly moved to the original s position.

<Flow of Cooling Wind>

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

In the embodiment, the cooling fan 28 (see FIG. 12) draws in cooling air from the upper portion of the charger 1 and spit out the wind passing through the inside of the charger 1 from the lower portion of the charger 1.

As shown in FIG. 12, when the cooling fan 28 is driven, the external atmosphere (air) is sucked into the inside of the charger 1 as a cooling wind system from the inlet 38 located above the charger 1.

In the embodiment, the corners of the upper surface 1b of the charger 1 are formed in an arc shape. Therefore, even when a plurality of chargers 1 are arranged adjacent to each other on the installation surface FL, the upper surfaces of two adjacent chargers 1 are adjacent to each other. The corners of 1b do not make contact with 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, it is not easy for the corners of the upper surface 1b of the charger 1 to hinder the flow of the wind, and the cooling air can be smoothly introduced into the charger 1 through the introduction port 38.

As shown in FIG. 12, when the cooling air enters the interior of the charger 1 through the inlet 38, the cooling air passes through the gap between the battery chamber sidewall 61 and the inner surface of the exterior body 3, and the second control substrate. A gap 15 (see FIG. 13) between the outer surface of 72 and the inner surface of the exterior body 3 flows downward through the interior of the charger 1.

In the embodiment, the cooling fan 28, the substrate chamber 7, and the battery chamber 6 are sequentially arranged from the lower surface 1a to the upper surface 1b of the charger 1, so the cooling air from the inlet 38 flows to the battery chamber 6 and the substrate in order. Room 7. Therefore, the possibility that the warming wind passing through the substrate chamber 7 flows to the battery chamber 6 is low.

When the cooling air flows downward through the interior of the charger 1, the wind warmed by the substrate chamber 7 is discharged from the discharge port 25 located at the lower part of the charger 1.

In the embodiment, the discharge port 25 is formed between the recessed portion 23 of the base 2 and the floor FL, so that the wind warmed by the inside of the charger 1 can be smoothly discharged to the outside of the charger 1.

As described above, the charger 1 of the above embodiment includes: a cooling fan 28 disposed inside the charger 1 of a portable battery 45 used in an electric vehicle; a first surface 1a, and The installation surface FL of the charger 1 is opposite; and the second surface 1b is farther from the installation surface FL than the first surface 1a; and the first surface 1a is smaller than the second surface 1b, and is charged in a side view. The side wall 3 of the device 1 is formed in a trapezoidal shape that is shorter along the first side along the first surface 1a than along the second side along the second surface 1b.

According to this configuration, since the cooling fan 28 is provided inside the charger 1, the cooling air can be sent to the inside of the charger 1 by the cooling fan 28, so that the charger 1 can be cooled. In addition, the charger 1 is provided with: a first surface 1a facing the installation surface FL on which the charger 1 is provided; and a second surface 1b which is farther from the installation surface FL than the first surface 1a; The surface 1a is smaller than the second surface 1b. In a side view, the side wall 3 of the charger 1 is formed in a trapezoidal shape shorter than the first side of the first surface 1a than the second side of the second surface 1b. Therefore, the following effects are exhibited. For example, when the side walls of the charger are formed into a rectangle in a side view, when a plurality of chargers are arranged on the installation surface and are adjacent to each other, the side walls of two adjacent chargers come into contact with each other, so that heat is easily trapped. Between two adjacent chargers, there is a high possibility that the cooling performance will decrease. In contrast, according to this configuration, the side wall 3 of the charger 1 is formed in a trapezoidal shape in a side view, whereby even when a plurality of chargers 1 are arranged adjacent to each other on the installation surface FL, two adjacent chargers are charged. The side walls 3 of the device 1 will not come into contact with each other (as shown in FIG. 15, because there is a gap 17 between the side walls 3 of two adjacent chargers 1), so the heat is not easy to stay in the two adjacent charges. There is a low possibility that the cooling performance is reduced between the radiators 1. In addition, even when a plurality of chargers 1 are arranged adjacent to each other on the installation surface FL, the heat obtained from the adjacent chargers 1 can be suppressed and used for the side walls of the two adjacent chargers 1. The gap 17 generated between 3 cools the charger 1. In addition, the side wall 3 of the charger 1 is formed in a trapezoidal shape that is shorter than the second side along the first side 1a along the first side along the first surface 1a, thereby forming the first side along the second side than the second side. Compared with the case of a long trapezoidal shape, the installation area of the charger 1 can be made smaller.

In the above embodiment, the lower surface 1a of the charger 1 as the first surface 1a is smaller than the upper surface 1b of the charger 1 as the second surface 1b, and the side wall 3 is formed along the lower side of the lower surface 1a in a side view. Since it has a trapezoidal shape shorter than the upper side along the upper surface 1b, the following effects are exhibited. That is, in a case where a plurality of chargers 1 erected in the up-down direction are arranged adjacent to each other on a setting surface FL parallel to the horizontal plane, the side walls 3 of two adjacent chargers 1 do not come into contact with each other, so the heat is not easy. Staying between two adjacent chargers 1 is less likely to reduce cooling performance.

In the above-mentioned embodiment, a case member 4 is further provided. The case member 4 is formed with an opening 39 that is openable to insert and remove the battery 45, and covers the side wall 3 from the outside. The side wall 3 and the case member 4 are formed. Since the introduction port 38 which is opened so that cooling air can be introduced in between, the following effects are exhibited. It is not necessary to provide an opening for cooling air for the side wall 3 of the charger 1, and the introduction of the cooling air may be controlled by an inlet 38 between the side wall 3 of the charger 1 and the casing member 4. That is, it is not necessary to perform special processing on the side wall 3 of the charger 1, and it is preferable.

In the embodiment described above, it further includes: a battery chamber 6 on which the battery 45 is placed; and a substrate chamber 7 on which the substrates 71 and 72 for charging control of the battery 45 are housed; and from the first surface 1a toward the second surface 1b, since the cooling fan 28, the board | substrate chamber 7, and the battery chamber 6 are arrange | positioned in this order, the following effects are exhibited. The cooling fan 28, the substrate chamber 7, and the battery chamber 6 are arranged so as to overlap from the first surface 1a to the second surface 1b. Therefore, the cooling fan 28, the substrate chamber 7, and the battery chamber 6 are arranged along the first surface. Compared with the case where the method 1a is arranged, the installation area of the charger 1 can be made smaller.

In the above-mentioned embodiment, an introduction port 38 is provided at a position farther from the installation surface FL than the first surface 1a, so that the cooling air can be introduced, and is closer to the installation surface FL than the introduction port 38. Since the discharge port 25 which is opened so as to discharge cooling air is provided at the position, the following effects are exhibited. Foreign matter such as dust existing on the installation surface FL is not easily sucked into the charger 1, so that the performance of the cooling fan 28 can be suppressed from being lowered. In addition, when the cooling fan 28, the substrate chamber 7, and the battery chamber 6 are sequentially arranged from the first surface 1a to the second surface 1b, the cooling air from the introduction port 38 flows to the battery chamber 6 and the substrate in order. Since the chamber 7 is discharged from the discharge port 25, the possibility of the warming wind passing through the substrate chamber 7 flowing to the battery chamber 6 is low, and thermal influence on the battery chamber 6 can be prevented.

In the above-mentioned embodiment, since the corners of the second surface 1b are formed in an arc shape, the following effects are exhibited. That is, in a case where a plurality of chargers 1 are arranged adjacent to each other on the installation surface FL, the corners of the second surfaces 1b of two adjacent chargers 1 will not contact each other (as shown in FIG. 14, because There is a gap 16) between the corners of two adjacent chargers 1, so it is not easy to hinder the flow of wind at the corners, and the cooling performance is improved.

<Modifications>

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

In the above-mentioned embodiment, the example in which the mounting base 8 was formed into a rectangular shape as viewed from the moving direction of the mounting base 8 was described, but it is not limited to this. For example, when viewed from the moving direction of the mounting table 8, the mounting table 8 may be formed into a polygonal shape other than a rectangle, or may be formed into a circular shape or an oval shape.

In the above embodiment, the movement direction of the mounting table 8 is taken as an example. The buffer mechanism 10 is located on the opposite side of the mounting table 8. The center position P1 of the mounting table 8 is the center of symmetry. The example has been described, but it is not limited to this. For example, when viewed from the moving direction of the mounting table 8, a plurality of buffer mechanisms 10 may be randomly arranged.

In the embodiment described above, the example in which the plurality of buffer mechanisms 10 are arranged has been described, but the invention is not limited to this. For example, only one buffer mechanism 10 may be arranged.

In the above-mentioned embodiment, an example has been described in which a plurality of guide mechanisms 11 are arranged so as to surround the center of gravity position P2 of the battery 45 when viewed from the moving direction of the mounting table 8, but it is not limited thereto. For example, a plurality of the guide mechanisms 11 may be arranged so as not to surround the center of gravity position 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 linear arrangement.

In the above-mentioned embodiment, the example in which the several guide mechanisms 11 were arrange | positioned was demonstrated, but it is not limited to this. For example, only one guide mechanism 11 may be arranged.

In the above-mentioned embodiment, the example in which the buffer mechanism 10 is attached to both sides of the mounting table 8 and viewed from the moving direction of the mounting table 8 is described, but it is not limited. herein. For example, the buffer mechanism 10 may be arranged on one side or three or more sides of the mounting table 8 so as to sandwich the guide mechanism 11. That is, when viewed from the moving direction of the mounting table 8, the buffer mechanism 10 may be provided on at least one side of the mounting table 8 so as to sandwich the guide mechanism 11.

In the above-mentioned embodiment, the example in which the mounting base 8 was arrange | positioned inside the opening part 39 was demonstrated, but it is not limited to this. For example, the mounting table 8 may be disposed outside the opening 39.

In the embodiment described above, an example has been described in which the buffer mechanism 10 and the guide mechanism 11 are separately provided, but the 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 mounting table 8 respectively.

In the embodiment described above, an example has been described in which an introduction port 38 is provided between the side wall 3 and the housing member 4 and is opened so that cooling air can be introduced, but it is not limited thereto. For example, a discharge port may be provided between the side wall and the casing member 4 so as to be able to discharge cooling air.

According to this configuration, it is possible not to provide an opening for cooling air for the side wall 3 of the charger 1 but to control the discharge of the cooling air by the discharge port (gap portion) between the side wall 3 of the charger 1 and the case member 4. In this configuration, it is also unnecessary to perform special processing on the side wall 3 of the charger 1, and it is preferable.

In other words, a gap portion 38 may be provided between the side wall 3 and the case member 4 so as to be opened so that cooling air can be introduced or discharged.

In the above embodiment, an example has been described in which the cooling fan 28, the substrate chamber 7, and the battery chamber 6 are sequentially arranged from the lower surface 1a of the charger 1 to the upper surface 1b, but it is not limited to this. For example, the cooling fan 28, the battery chamber 6, and the substrate chamber 7 may be arranged in this order from the lower surface 1a to the upper surface 1b of the charger 1. The battery chamber 6, the substrate chamber 7, and the cooling fan 28 may be arranged in this order from the lower surface 1a to the upper surface 1b of the charger 1. That is, the arrangement order of the cooling fan 28, the substrate chamber 7, and the battery chamber 6 can also match the specifications of the cooling fan 28 (air supply direction, output, shape, size, etc.) and the specifications of the charger 1 (internal structure, shape, size, etc.) And change appropriately.

In the above embodiment, the example in which the corner portion of the upper surface 1b of the charger 1 is formed into an arc has been described, but it is not limited to this. For example, the corners of the upper surface 1b of the charger 1 may also be inclined with respect to adjacent two sides. That is, the corners of the upper surface 1b of the charger 1 may be chamfered. The corners of the upper surface 1b of the charger 1 may be formed in a right-angled shape.

In the embodiment described above, the introduction port 38 is provided at a position farther from the installation surface FL than the first surface 1a, and is provided in a manner capable of introducing cooling air, and is closer to the installation surface than the introduction port 38. The position of the FL has been described with an example in which the discharge port 25 that is opened so as to discharge the cooling air is provided, but is not limited thereto. For example, as shown in FIG. 16, at a position farther from the installation surface FL than the first surface 1 a, a discharge port 38 that is opened to discharge cooling air is provided, and is closer to the installation than the discharge port 38. The position of the surface FL is provided with an introduction port 25 which is opened so that cooling air can be introduced. That is, the cooling fan 28 can also draw in cooling air from the lower portion of the charger 1 and discharge the wind passing through the inside of the charger 1 from the upper portion of the charger 1. In FIG. 16, the symbol L1 indicates the direction in which the cooling wind (wind) flows.

According to this configuration, the cooling air from the introduction port 25 flows sequentially to the substrate chamber 7 and the battery chamber 6 and is discharged from the discharge port 38, so that the cooling air can directly contact the substrate (second control shown in FIG. 5). Substrate 72), and the cooling efficiency of the substrate is improved.

In the above-mentioned embodiment, an example in which the separation interval between the cooling fan 28 and the right second control substrate 72 is larger than the separation interval between the cooling fan 28 and the front second control substrate 72 (or the rear second control substrate 72) is described (see FIG. 13) Explained, but it is not limited to this.

FIG. 17 is a view including a cross section corresponding to FIG. 13. In FIG. 17, illustrations of the substrate chamber bottom wall 70 and the like are omitted.

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 substrate 72 and the right portion of the rear second control substrate 72. The separation interval between the cooling fan 28 and the right second control substrate 72 may also be smaller than the separation interval between the cooling fan 28 and 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 substrate 72 than the position shown in FIG. 13.

According to this configuration, the cooling efficiency of the right second control substrate 72 can be improved as compared with the case where the cooling fan 28 is disposed at the position shown in FIG. 13.

For example, as shown in FIG. 18, a wind guide structure 270 having a plurality of openings 271 may be provided in a central region of the substrate body 20 (a region overlapping with the cooling fan 28 in a bottom view). When viewed from the bottom, each of the openings 271 is formed in an arc shape with the center position C1 of the wind guide structure 270 as a concentric shape. A plurality of (four in this modified example) protrusions 272 are provided on the outer periphery of the air guide structure 270 for fixing the cooling fan 28. As shown in FIG. 19, each protrusion 272 protrudes downward from the substrate body 20. The protrusion 272 has a function of preventing the opening 271 from being blocked from below the substrate body 20. In FIG. 19, reference numeral 273 denotes a bolt (connection member) for fixing the cooling fan 28 to the boss.

In the cross-sectional view of FIG. 19, the substrate body 20 is provided with a tapered portion 274 that divides each opening 271. In the sectional view of FIG. 19, the tapered portion 274 is inclined so as to be closer to the center position C1 (the central axis C1 of the cooling fan 28) of the air guide structure 270. Accordingly, the cooling wind (wind) can be guided along the inclination of the tapered portion 274.

In the above-mentioned embodiment, the example in which the slider 110 was fixed to the 1st lower extension part 92 and the 2nd lower extension part 93 of the mounting base support body 90 was demonstrated, but it is not limited to this. For example, as shown in FIG. 20, the mounting table peripheral part 209 including the slider 210 may be integrally formed. For example, the material for forming the mounting table peripheral parts 209 is a resin material. In FIG. 20, reference numeral 210 indicates a slider, reference numeral 211 indicates a rod support portion that supports the upper end of the piston rod 100, and reference numeral 212 indicates a rectangular frame shape formed along the shape of the mounting table 8 (see FIG. 21). Box wall.

In this modification, the mounting table 8 (see FIG. 21), the slider 210, the upper support portion 211, and the frame wall 212 are formed as a single body. That is, the mounting table 8 and the mounting table peripheral parts 209 are integrally formed with the same member. This simplifies the structure surrounding the mounting table 8 and facilitates the assembly of the charger.

In FIG. 20, reference numeral 220 denotes a downwardly extending wall extending downward from the four corners of the case body 40. The lower extension wall 220 is disposed inside the frame wall 212. The lower extension wall 220 functions as a guide wall that guides the movement of the mounting table 8 in the vertical direction through the frame wall 212. In FIG. 20, the mounting table peripheral part 209 located at the initial state is shown by a solid line, and the mounting table peripheral part 209 located near the bottom wall of the battery chamber (the substrate chamber upper wall 250) is shown by a two-dot chain line.

FIG. 21 shows the mounting table 8 (at the uppermost state) at the position of the initial state. FIG. 22 shows a state where the mounting table 8 is moved to the lowermost position.

However, in a case where the lower body extension wall 220 is provided in the housing body 40, when the mounting table 8 is moved downward, a gap is generated between the mounting table 8 and the housing member 4 in the vertical direction. In view of this, in the present modified example, the upper and lower heights of the frame body 212 are set to a size that blocks the above-mentioned gap, thereby preventing the mounting table 8 and the housing member 4 even when the mounting table 8 is moved downward. There is a gap between them. Therefore, it is possible to prevent a case where an object or the like is dropped between the mounting table 8 and the case member 4 or the like.

In the above-mentioned embodiment, the substrate chamber 7 is described as an example in which the substrate chamber bottom wall 70 including the plurality of control substrates 71 and 72 and the plurality of control substrates 71 and 72 is housed, but 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 extending downward from the outer periphery of the substrate chamber upper wall 250. 251. That is, the substrate chamber 7A of this 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 substrates (not shown) are fixed to the upper wall 250 of the substrate chamber by potting or the like. In this modification, the upper wall 250 of the substrate chamber also functions as the bottom wall of the battery chamber.

The plurality of control substrates (not shown) are a plurality of first control substrates mounted on a central portion of the substrate chamber upper wall 250 and a plurality of second control substrates standing downward from the periphery of the substrate chamber upper wall 250. In this modification, the height of the second control substrate is lower than the height of the first control substrate. The cooling fan 28 is arranged at a position overlapping the central portion of the upper wall 250 of the substrate chamber in a plan view. In other words, the cooling fan 28 is disposed at a position that avoids the plurality of first control substrates (a position overlapping the plurality of second control substrates in a plan view). That is, the cooling fan 28 is arranged in a portion where the height of the substrate is low. Thereby, the overall height of the charger can be shortened.

In addition, the present invention is not limited to the above embodiments. For example, the straddle-type electric vehicle includes all vehicles on which the rider straddles the body, and includes not only two-wheeled locomotives (including two-wheeled locomotives with a prime mover and a speed brake Up-type vehicles), also includes three-wheeled vehicles (in addition to the vehicle with the first and second wheels, the vehicle with the first and second wheels). The present invention is applicable not only to two-wheeled locomotives, but also to four-wheeled vehicles such as automobiles.

For example, the charger is not limited to a charger for mobile batteries of two-wheeled locomotives, but also a charger for electrical equipment other than electric vehicles.

In addition, the configuration of the embodiment described above is an example of the present invention, and various changes can be made by replacing the constituent elements of the embodiment with well-known constituent elements and the like without departing from the gist of the present invention.

Claims (7)

    A charger for a portable battery, comprising: a cooling fan (28) arranged inside a charger (1) of a portable battery (45) used in an electric vehicle; One surface (1a) is opposite to the installation surface (FL) on which the charger (1) is provided; and the second surface (1b) is farther from the installation surface than the first surface (1a) ( FL); the first surface (1a) is smaller than the second surface (1b). In a side view, the side wall (3) of the charger (1) is formed along the first surface (1a). The first side has a shorter trapezoidal shape than the second side along the second surface (1b).         For example, the portable battery charger of claim 1, wherein the lower surface (1a) of the above-mentioned charger (1) as the first surface (1a) is more than the above-mentioned charger (2b) as the second surface (1b) 1) The upper surface (1b) is small, and the side wall (3) is formed in a trapezoidal shape shorter than the upper surface (1b) along the lower surface (1a) in a side view.         The portable battery charger according to claim 1 or 2, further comprising: a case member (4), which is formed with an opening that can be inserted into and removed from the battery (45). A portion (39) covers the side wall (3) from the outside, and a gap portion (38) is provided between the side wall (3) and the housing member (4), which is opened so that cooling air can be introduced or discharged.         The portable battery charger according to any one of claims 1 to 3, further comprising: a battery chamber (6), on which the battery (45) is placed; and a substrate chamber (7), which stores the above-mentioned operations. Substrates (71, 72) for charging control of the battery (45); and from the first surface (1a) to the second surface (1b), the cooling fan (28) and the substrate chamber (7) are sequentially arranged And the above battery chamber (6).         The portable battery charger according to any one of claims 1 to 4, wherein, at a position farther from the above-mentioned setting surface (FL) than the above-mentioned first surface (1a), a cooling air can be introduced. The introduction port (38) opened in this manner is provided at a position closer to the installation surface (FL) than the introduction port (38), and a discharge port (25) opened so as to discharge the cooling air is provided.         The portable battery charger according to any one of claims 1 to 4, wherein a position far from the above-mentioned setting surface (FL) compared to the above-mentioned first surface (1a) is provided to discharge cooling air. The discharge opening (38) that is opened in this manner is located closer to the installation surface FL than the discharge opening (38), and is provided with an introduction opening (25) that is opened so that the cooling air can be introduced.         The portable battery charger according to any one of claims 1 to 6, wherein the corners of the second surface (1b) are formed in an arc shape.