JP4422952B2 - Charger structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charger structure suitable for battery charging of an electric vehicle that runs using a battery as a power source.
[0002]
[Prior art]
Generally, a charger for charging a battery of an electric vehicle has an AC cord for input and a DC cord for output, and the AC cord is connected to an outlet serving as a commercial power source. Charging is performed by connecting a battery.
[0003]
[Problems to be solved by the invention]
The AC cord and DC cord of the charger are made of a long object having a predetermined length so that a certain degree of work freedom can be secured. In addition, since the DC cord has a very large diameter compared to the AC cord, it cannot be folded back, for example, 180 degrees like the AC cord, so it cannot be bundled shortly, and the code processing after charging is completed The current situation is troublesome.
[0004]
For this purpose, for example, a cord is wound around the outer periphery of the charger body, but it looks bad, and the wound cord breaks down quickly. There is a problem when carrying around. Further, in some cases, the wire is repeatedly wound in a direction opposite to the extension direction of the cord, so that the root portion opposite to the extension direction of the cord causes an adverse effect such as easy cutting of the inner cord line.
[0005]
Therefore, the present invention can reliably wind the AC cord and the DC cord without causing excessive bending, and is not affected by rainwater when used outdoors and is efficient. An object is to provide a charger structure that provides internal cooling.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a charger having an AC cord for input and a DC cord for output, and has a charger body, and the charger body converts alternating current into direct current. A storage part in which a circuit control board having an AC / DC conversion circuit part is stored and disposed, a removable cover part that covers the upper opening of the storage part and projects outward from the outer periphery of the upper opening of the storage part, and for carrying The AC cord and the DC cord are extended and protruded from the charger main body to the outer peripheral wall surface of the charger main body, and the cord is wound around the cord extension direction. A storage part is formed, the cover part has an outer peripheral edge protruding outward, the outer peripheral part constitutes one cord detachment restricting means of the cord winding storage part, and the handle part is The storage part and front The circuit control board is formed in a duct shape through which air flows, and the outside of the circuit control board facing the lower side region of the handle part in the storage part is formed as a through hole penetrating the cover part. Further, the present invention is characterized in that a ventilation preventing means is formed and the air is prevented from flowing between the lower side region and the outside of the circuit control board .
[0007]
As a result, the AC cord and the DC cord after completion of charging are wound 360 degrees around the cord winding storage portion of the charger main body, whereby the cord storage operation is completed quickly.
[0008]
In this case, in addition to the cord winding storage portion being formed in a ring shape with a large diameter, the AC cord and the DC cord can be wound along the cord extending direction. The code itself is not overwhelmed.
[0009]
In addition, it has a good appearance, and a secure storage state that does not collapse can be obtained.
[0011]
According to the present invention, for example, even if it rains while charging outdoors, the cover part becomes an umbrella, so that the intrusion of rainwater into the storage part is reliably prevented, and the internal AC / DC conversion circuit part is prevented. There is no adverse effect.
[0012]
Further, the AC cord and the DC cord wound around the cord winding storage portion are prevented from coming off upward by the cord detachment restricting means. In addition, even if the handle part is accidentally dropped when being carried, the outer peripheral edge of the cover part protruding outward functions as an impact absorbing member that receives the impact by contacting the ground first, and at the time of impact Plays a role in relieving shock.
[0014]
According to the present invention, since the handle portion is integrally formed at the same time as the charger main body is formed, it is not necessary to newly provide a handle portion, which is very preferable in terms of cost. Further, since the gap on the outside of the circuit control board is suppressed to be small by the handle portion, the region becomes a ventilation resistance, so that the air flows through the inside without passing through the outside of the circuit control board. As a result, the AC / DC conversion circuit section can be reliably cooled.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS. 1 to 7.
[0016]
FIG. 1 shows a schematic perspective view of the charger 1. The charger main body 3 of the charger 1 is made of a synthetic resin material and is formed in a plane horizontally long oval shape including a storage portion 5 and a cover portion 7 covering the upper opening of the storage portion 5. It has become.
[0017]
The handle portion 9 is a through-hole type that penetrates up and down as viewed from the top so that the handle portion 9 does not have to be provided separately by forming the cover portion 7 and the storage portion 5 together at the same time. Yes. As shown in FIG. 4, the handle portion 9 approaches the outer side (upper side of the drawing) of the circuit control board 13 described later in which the lower side region of the handle opening peripheral edge 11 of the storage portion 5 is arranged and set in the storage portion 5. As a result, the gap formed between the circuit control board 13 and the circuit control board 13 is kept small. This is to act as an air flow blocking means for blocking air from flowing outside the circuit control board 13 (upper side in the drawing) as indicated by an arrow a.
[0018]
The storage portion 5 has a shape in which a peripheral wall 15 forming an outer peripheral wall surface rises short from the bottom, and an upper surface is an upper opening. As shown in FIG. 6, support legs 16 are provided at four locations on the back side of the bottom of the storage section 5. By installing the support legs 16, the support legs 16 can be used at predetermined locations.
[0019]
As described above, the circuit control board 13 is provided inside the storage portion 5, but the outer peripheral wall surface of the peripheral wall 15 is a cord winding storage portion 17 described later formed in a ring shape with a large diameter. ing.
[0020]
The circuit control board 13 includes a horizontal board 13a that is long in the left and right in FIG. 4 and a vertical board 13b that rises from one of the horizontal boards 13a (upper side in FIG. 4), and a heat sink 13c that is a heat sink installed on the horizontal board 13a. It is configured. Circuit components of the AC / DC conversion circuit unit 19 are mounted on the horizontal substrate 13a and the vertical substrate 13b, and the horizontal substrate 13a is fixedly supported on the bottom of the storage unit 5 by mounting means such as screws.
[0021]
The vertical substrate 13b is fixedly supported by the horizontal substrate 13a, and the upper portion (the upper side in FIG. 4) on the outside approaches the lower side region of the handle portion 9 as described above, so that the gap is kept small.
[0022]
As shown in FIG. 5, the heat radiating plate 13c is formed in a U-shaped cross-section with a material having good thermal conductivity, and is formed inside the vertical substrate 13b and in a duct shape with the horizontal substrate 13a. Therefore, when air flows through the heat radiating plate 13c, for example, heat generated from the power components can be diffused and efficiently radiated.
[0023]
A cooling fan 23 is provided on one side of the heat radiating plate 13 c formed in a duct shape, and the cooling fan 23 is disposed at a position facing the air outlet 25 provided on the peripheral wall 15 of the storage unit 5. The other side of the heat radiating plate 13 c is an opening 27 for taking in air, and is disposed at a position facing the outside air inlet 29 provided on the peripheral wall 15 of the storage portion 5.
[0024]
The air outlet 25 and the outside air inlet 29 are fixed louvers that are inclined downward from the inside to the outside as shown in FIG. 7, and serve as means for preventing rainwater or the like from directly entering the inside from above. . In this case, a drainage hole is provided below the outlet 25 and the outside air intake 29 so that even if rainwater or the like enters the bottom of the storage unit 5, the rainwater that enters the water is quickly drained to the outside. It is desirable to make it.
[0025]
The AC / DC conversion circuit unit 19 has an AC code 31 for input and a DC code 33 for output where AC is converted to DC as described above. The plug 35 of the AC cord 31 is connected to an outlet serving as a commercial power supply, while a charging battery 37 is connected to the charging terminal 37 of the DC cord 33.
[0026]
As shown in FIG. 4, the AC cord 31 and the DC cord 33 are extended outward along the peripheral wall 15 from a bent portion 39 bent into a crank shape, and directly into the cord winding storage portion 17 along the cord extending direction. It is wound without difficulty.
[0027]
The AC cord 31 and the DC cord 33 wound around the cord winding housing portion 17 are fixed and supported without moving by a fixing band 41 provided so as to cross the cord winding housing portion 17.
[0028]
One end of the fixed band 41 is attached to the cover portion 7, while the other end is a free end, and the engagement hole 43 provided on the free end side is a bottom surface of the storage portion 5 as shown in FIG. 5. It is means that is engaged and supported so as to be freely disengageable with respect to the engaging projection 45 provided on the surface.
[0029]
In this case, the engagement means between the engagement hole 43 and the engagement protrusion 45 may be any means such as a hook type or a button type.
[0030]
The cover portion 7 that covers the storage portion 5 is formed in a shape that protrudes outward from the outer periphery of the storage portion 5, and is overlapped and joined vertically. Specifically, as shown in FIG. 4, a plurality of mounting boss portions 47 provided at positions facing the storage portion 5 and the cover portion 7 including the support leg portion 16 region of the storage portion 5 are overlapped in the vertical direction. By engaging the fastening screw 49 from the lower side on the storage unit 5 side, the concave groove 50 provided in the upper end edge of the peripheral wall 15 of the storage unit 5 and the convex strip 51 provided in the cover unit 7 are engaged. It is possible to obtain a state in which the upper and lower portions are joined together.
[0031]
Therefore, by loosening and removing the fastening screw 49, the cover portion 7 can be removed, and maintenance and other operations can be performed without any trouble.
[0032]
The outer peripheral edge 7a of the cover portion 7 protrudes outward from the outer periphery of the storage portion 5 as described above, thereby serving as a cord detachment restricting means 53 serving as one wall of the cord winding storage portion 17 as shown in FIG. It has a structure having both a function and a function as an impact absorbing member that receives an impact load due to the property of the synthetic resin material when dropped.
[0033]
A part of the cord winding storage portion 17 has a U-shaped cross section, and the entire circumference including the upper side region of the handle opening peripheral edge 11 of the handle portion 9 is 360 degrees.
[0034]
One wall of the cord winding storage portion 17 having a U-shaped cross section is formed by the cord detachment restricting means 53 by the outer peripheral edge 7a of the cover portion 7 as described above, and the other wall is provided in the storage portion 5. The protruding rib 55 is formed. As shown in FIG. 6, the protruding ribs 55 are provided at the left and right positions using the support leg portions 16 and the central portion thereof, so that the cords function as the deviation control means 57 that prevents the cords from coming off. ing.
[0035]
The protruding rib 55 provided at the central portion has a larger overhang than the other protruding ribs 55. This is a means for creating an unstable element that becomes unstable and falls when the charger main body 3 is stood up with the handle portion 9 up and is made to protrude only one place. This is to specify the usage state so that it cannot be used.
[0036]
In FIG. 4, reference numeral 59 denotes an AC cord 31 transformer.
[0037]
According to the charger 1 configured as described above, the plug 35 of the AC cord 31 is inserted into an outlet serving as a commercial power source, and the battery is connected to the charging terminal 37 of the DC cord 33 so that the battery can be charged. become.
[0038]
When the battery is charged, for example, even if it rains during outdoor charging, the cover portion 7 becomes an umbrella, so that rainwater can be reliably prevented from entering the storage portion 5 and the internal AC / DC conversion can be performed. There is no adverse effect on the circuit unit 19.
[0039]
Further, the air taken in from the outside air intake port 29 by the cooling fan 25 flows through the inside of the circuit control board 13 without passing through the outside of the circuit control board 13 having a small gap, and generates AC. -The DC conversion circuit unit 19 is reliably cooled to avoid malfunction due to self-heating.
[0040]
On the other hand, after the charging is completed, the AC cord 31 and the DC cord 33 are wound 360 degrees around the cord winding housing portion 17 of the charger main body 3 so that the cords 31 and 33 can be stored.
[0041]
In this case, in addition to winding the AC cord 31 and the DC cord 33 along the direction of extending the cord, the winding region is formed in a ring shape with a large diameter, so that problems such as forcibly bending the cord occur. Without adversely affecting the internal code lines. Moreover, it looks good and can be wound reliably. In addition, when it is accidentally dropped when carrying the mounting portion 9, the outer peripheral edge 7 a of the cover portion 7 acts as an impact storage member that receives the impact load by first contacting the ground, and at the time of impact To soften the shock.
[0042]
【The invention's effect】
As described above , according to the present invention , the AC cord and the DC cord can be beautifully and reliably stored by the cord winding storage portion provided in the charger main body. In addition, there is no unreasonable effect such as a sudden bending of the cord, and there is no adverse effect on the inner cord line.
[0043]
In addition, according to the present invention, even if it rains during charging outdoors by the cover part protruding from the storage part, the intrusion of rain water etc. is surely prevented, and the internal AC / DC conversion circuit part is reliably protected from rain water etc. To protect.
[0044]
Even when it is accidentally dropped, the outer peripheral edge of the cover part that protrudes to the outside works as an impact absorbing member that receives the impact load by first contacting the ground, and has the advantage of softening the shock at the time of impact. It is done.
[0045]
Further , according to the present invention, since the handle portion can be integrally formed at the time of forming the charger main body, there is no need to newly provide it, which is very preferable in terms of cost.
[0046]
In addition, since the outer clearance of the circuit control board can be kept small by the handle portion, and a ventilation resistance that prevents the flow of air can be obtained, the air can flow without passing through the outside of the circuit control board. The AC / DC converter circuit is efficiently cooled, and malfunctions due to self-heating are reliably avoided.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a charger according to the present invention.
FIG. 2 is a schematic plan view of a charger.
FIG. 3 is a schematic rear view of the charger.
4A and 4B are schematic plan views in which a cover portion of a charger is removed.
FIG. 5 is a schematic explanatory diagram showing a control circuit board.
FIG. 6 is a schematic bottom view of the charger.
FIG. 7 is a schematic cut explanatory view of a charger in which an internal mechanism showing an air outlet and an air intake is omitted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 3 Charger main body 5 Storage part 7 Cover part 7a The outer periphery 9 of a cover part Handle part 15 Perimeter wall (outer peripheral wall surface)
13 Circuit Control Board 17 Cord Winding Storage Unit 19 AC / DC Conversion Circuit Unit 31 AC Code 33 DC Code 53 Cord Removal Control Means

Claims (1)

A charger having an AC code for input and a DC code for output,
Having a charger body,
The charger body includes a storage unit in which a circuit control board having an AC / DC conversion circuit unit that converts alternating current into direct current is housed, and
A detachable cover that covers the upper opening of the storage unit and protrudes outward from the outer periphery of the upper opening of the storage unit;
With a handle for carrying,
On the outer peripheral wall surface of the charger main body, a cord winding storage portion is formed that extends and protrudes the AC cord and DC cord from the charger main body to the outside and winds the cord along the cord extending direction. ,
The cover portion has an outer peripheral edge protruding outward,
The outer peripheral edge constitutes one cord detachment restricting means of the cord winding storage portion,
The handle part is formed as a through-hole penetrating the storage part and the cover part,
The circuit control board is formed in a duct shape through which air flows,
The outside of the circuit control board facing the lower side region of the handle portion in the storage portion forms a ventilation blocking means,
The charger that prevents the air from flowing between the lower side region and the outside of the circuit control board .

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