Charger

Abstract

To provide a charger that can be efficiently cooled by arranging a low-heat-resistant component and a high-heat-resistant component in enclosures and selectively cooling the enclosure mounting low-heat-resistant component.SOLUTION: A charger includes: a charger enclosure 10 including an input-output enclosure, an operation-part enclosure 10b, and a unit mounting part 30; a control circuit part mounted in the operation-part enclosure 10b; an air intake port 151 arranged at a back face 12 of the charger enclosure and formed at a position facing the operation-part enclosure 10b; air-outlet ports formed at a front face 11 and a back face 12 of an underside of the charger enclosure 10; a charging unit mounted in the unit mounting part 30 on the lower side of the operation-part enclosure 10b; a main-circuit part that is mounted in the input-output enclosure and has an input part and an output part; and a fan 31 that is arranged at an upper part of the charging unit and configured to cool the charging unit as a main heat-generation part with outside air taken in through the air intake port 151. The control circuit part includes a component having low heat resistance in comparison with the main circuit part.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a charging device.

Background Art

[0002] When installing a charging device outdoors, it is necessary to cool the inside of the housing in accordance with the temperature specifications of the internal components of the housing. Conventionally, since components of the control circuit system with a low temperature specification and components of the main circuit system, which are heat-generating components with a relatively high temperature specification, are mixed in the same housing, it may be difficult to efficiently cool the inside of the housing with different temperature specifications. Related techniques are disclosed in Patent Document 1.

[0003] In addition, the temperature distribution inside the housing where air is not forcibly circulated is low on the bottom side and increases toward the upper side. Therefore, there is a method of suppressing the temperature within the specification by mounting components with a low temperature specification on the bottom side. However, for components with a low temperature specification related to the part operated by the user, it is necessary to mount them at a height that is easy to operate. Therefore, in order to suppress the temperature around that component, it is necessary to suppress the temperature of the entire device. In this case as well, cooling may be difficult. Optimization mounting that controls the temperature of the mounting position according to the temperature specifications of each component is required.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Various aspects of the present invention aim to provide a charging device that can be efficiently cooled by separately arranging low heat-resistant components and high heat-resistant components in the housing and focusing on cooling the housing in which the low heat-resistant components are mounted.

Means for Solving the Problems

[0006] The various aspects of the present invention will be described below.

[0007] [1] When a charging device is installed, a vertically long charging device housing, a vertically long input / output housing located on the right or left side with respect to the front, an operation unit housing located above the center in the longitudinal direction with respect to the front, and a unit mounting portion located below the operation unit housing; a charging device housing provided with a control circuit unit mounted in the operation unit housing; an air intake formed at a position on the back surface of the charging device housing and facing the operation unit housing; exhaust ports formed on the front and back surfaces of the bottom surface of the charging device housing; a charging unit mounted on the unit mounting portion on the lower side in the charging device housing; a main circuit unit having an input part and an output part and mounted in the input / output housing; a fan disposed above the charging unit and for cooling the charging unit, which is the main heat generating part, with outside air taken in from the air intake; and having each of the input / output housing and the operation unit housing is a housing having no air intake for introducing outside air; a charging device, wherein the control circuit unit has components with lower heat resistance than the charging unit and the main circuit unit.

[0008] According to the charging device of [1] according to one aspect of the present invention, in the charging device housing, a vertically long input / output housing is arranged on the right or left side with respect to the front, an operation unit housing is arranged above the longitudinal center with respect to the front, and a unit mounting portion located below the operation unit housing is arranged. A main circuit portion having an input portion and an output portion is mounted in the input / output housing, and a control circuit portion having components with lower heat resistance than the main circuit portion is mounted in the operation unit housing. By separating the operation unit housing in which the control circuit portion with low heat resistance is mounted from the unit mounting portion on which the charging unit, which is the main heat generating portion, is mounted and the input housing in which the main circuit portion with more heat generating portions than the control circuit portion is mounted, the mounting areas of these control circuit portion, main circuit portion, and charging unit are separately arranged in the charging device housing. Then, the fan arranged above the charging unit is rotated, and the charging unit is cooled by the air sucked in from the air inlet. As a result, it is possible to provide a charging device that can be efficiently cooled while suppressing thermal interference.

[0009] [2] In the above [1], The charging device is characterized in that the operation unit housing in which the control circuit portion having lower heat resistance than the main circuit portion is mounted is separated from each of the unit mounting portion on which the charging unit having a larger amount of heat generation than the main circuit portion is mounted and the input / output housing in which the main circuit portion having a larger amount of heat generation than the control circuit portion is mounted. According to the charging device of [2] according to one aspect of the present invention, since the operation unit housing separates each of the unit mounting portion and the input / output housing, thermal interference can be suppressed. [3] In the above [1] or [2], The charging device is characterized in that the fan is rotated, and the operation unit housing is cooled by the air sucked in from the air inlet passing through the back surface of the operation unit housing. According to the charging device of [3] according to one aspect of the present invention, by rotating the fan, the operation unit housing in which the control circuit portion having components with lower heat resistance is mounted can be cooled, and as a result, the temperature rise of the control circuit portion can be suppressed. [4] In the above [1] or [2], It is disposed inside the charging device housing, and has an air introduction path portion that turns upward the flow of air sucked from the intake port by the surface facing the intake port and creates a path for discharging the air to the back side of the charging device housing. A charging device, characterized in that each of the upper side and the lower side of the outlet of the air introduction path portion is provided with a water-returning structure.

[0010] According to the charging device of [4] according to one aspect of the present invention, by providing a water-returning structure on each of the upper side and the lower side of the outlet of the air introduction path portion, it is possible to prevent rainwater from directly entering the inside of the charging device housing.

[0011] [5] In the above [1] or [2], A charging device, characterized in that an intake port for sucking air to cool the control circuit portion is provided at the upper part of the operation unit housing.

[0012] According to the charging device of [5] according to one aspect of the present invention, by providing an intake port for sucking air to cool the control circuit portion at the upper part of the operation unit housing, it is possible to suppress a temperature rise of the control circuit portion having components with low heat resistance inside the operation unit housing.

[0013] [6] In the above [1] or [2], A charging device, characterized in that the input / output housing is formed so that an end side of the operation unit housing enters therein. According to the charging device of [6] according to one aspect of the present invention, when warm air flows from the bottom to the top inside the input / output housing because the end side of the operation unit housing enters the input / output housing, the warm air is cooled by the operation unit housing whose temperature rise is suppressed more than that inside the input / output housing. As a result, it is possible to suppress a temperature rise in the upper part of the input / output housing.

[0014] [7] In the above [1] or [2], A charging device, characterized in that when the air sucked in from the intake port passes through the back surface of the operation unit housing, the air passes through the side surface of the input / output housing located in the charging device housing, thereby air-cooling the input / output housing. According to the charging device of [7] according to one aspect of the present invention, the side surface of the input / output housing located in the charging device housing is air-cooled by air, the temperature environment inside the input / output housing where the main circuit unit is mounted can be improved, and the temperature rise of the main circuit unit can be suppressed.

[0015] [8] In the above [1] or [2], An AC wiring for inputting an alternating current from the input unit to the charging unit, and a DC wiring for inputting the power converted by the charging unit to the output unit are arranged outside the input / output housing and below the intake port in the charging device housing. A charging device characterized by this.

[0016] According to the charging device of [8] according to one aspect of the present invention, most of the AC wiring and DC wiring, which are input / output wirings, are not arranged inside the input / output housing, but are arranged outside the input / output housing and in the outside air introduction part below the intake port in the charging device housing. By doing so, the input / output wiring can be efficiently cooled, and the influence of heat generation from the input / output wiring on the input / output housing can be suppressed.

[0017] [9] In the above [1] or [2], A charging device, characterized in that it has an outside air exposure surface at the upper part of the input / output housing located in the charging device housing.

[0018] According to the charging device of [9] according to one aspect of the present invention, by having an outside air exposure surface at the upper part of the input / output housing, the temperature environment inside the input / output housing can be improved.

[0019]

[10] In the above [1] or [2], A charging device, characterized in that it has a heat sink arranged in the charging device housing and arranged on the back surface of the operation unit housing.

[0020] According to the charging device of the above

[10] according to one aspect of the present invention, by arranging a heat sink on the back surface of the operation unit housing, the operation unit housing can be cooled more from the back surface. Thereby, the temperature rise of the control circuit unit with low heat resistance mounted in the operation unit housing can be further suppressed.

[0021]

[11] In the above [1] or [2], The charging device is characterized in that the control circuit unit includes a display unit, a communication control unit, and a charging control unit.

[0022]

[12] In the above [1] or [2], The input unit is arranged below the input / output housing and adjacent to the unit mounting part, The output unit is arranged above the input / output housing and above the input unit, The input unit has an input terminal to which power from the outside is input, The output unit has an output terminal to which the power converted by the charging unit is output, The input terminal is arranged below the input unit, The charging device is characterized in that the output terminal is arranged above the output unit.

[0023] According to the charging device of the above

[12] according to one aspect of the present invention, an input unit is arranged at the lower stage of the input / output housing, an output unit is arranged at the upper stage of the input / output housing, the input terminal of the input unit is arranged below the input unit, and the output terminal of the output unit is arranged above the output unit. Thereby, the input terminal and the output terminal can be configured to be separated as much as possible. Thereby, EMI countermeasures and noise countermeasures can be improved. In addition, by arranging the input unit downward, components such as a leakage circuit breaker with low heat resistance in the main circuit can be arranged on the bottom surface side where the temperature rise is relatively low.

[0024]

[13] In the above [1] or [2], The AC wiring port of the AC wiring for inputting an AC current from the input unit to the charging unit is arranged at the lower stage of the input / output housing and above the input terminal, The DC wiring port of the DC wiring for inputting the power converted by the charging unit to the output unit is disposed above the upper stage of the input / output housing and below the output terminal. The DC wiring port is located above the AC wiring port, above the charging unit, and below the operation unit housing. The DC wiring port is disposed on the front side of the input / output housing. The AC wiring port is disposed on the back side of the input / output housing. A charging device, characterized in that a signal wiring for connecting the charging unit and the control circuit unit is directly drawn into the operation unit housing without passing through the input / output housing.

[0025] According to the charging device of the above

[13] according to an aspect of the present invention, an AC wiring port is disposed below the lower stage of the input / output housing and above the input terminal, and a DC wiring port is disposed above the upper stage of the input / output housing and below the output terminal. The DC wiring port is positioned above the AC wiring port, the DC wiring port is positioned below the operation unit housing, the DC wiring port is disposed on the front side of the input / output housing, the AC wiring port is disposed on the back side of the input / output housing, and the signal wiring is directly drawn into the operation unit housing without passing through the input / output housing. Thereby, the AC wiring and the DC wiring are separated in the input / output housing, the signal wiring is directly drawn into the operation unit housing, and the wiring route is such that the signal wiring does not cross. As a result, EMI countermeasures and noise countermeasures can be improved. Further, by disposing most of the AC wiring and the DC wiring that generate heat due to the current of the main circuit in the unit mounting portion cooled by the outside air, the amount of heat generated in the input / output housing can be suppressed, and the temperature rise in the input / output housing can be suppressed.

[0026]

[14] In the above

[13] , The charging unit has an input connector, an output connector, and a signal connector that are arranged separately from each other. The AC wiring is connected to the input connector. The DC wiring is connected to the output connector. A charging device, characterized in that the signal wiring is connected to the signal connector.

[0027]

[15] In the above [1] or [2], The charging unit is a charging device characterized by converting externally input power into power for charging an electric vehicle.

[0028] According to the charging device of the above

[15] according to one aspect of the present invention, since the charging unit converts externally input power into power for charging an electric vehicle, this charging device can be used as a charging device for electric vehicles.

Advantages of the Invention

[0029] According to various aspects of the present invention, it is possible to provide a charging device that can be efficiently cooled by separately arranging low heat-resistant parts and high heat-resistant parts in a housing and focusing on cooling the housing on which the low heat-resistant parts are mounted.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following description, and those skilled in the art can easily understand that the form and details can be variously changed without departing from the spirit and scope of the present invention. Therefore, the present invention should not be construed as being limited to the description of the embodiments shown below.

[0032] FIG. 1 is a schematic perspective view for explaining a charging device according to an aspect of the present invention. FIG. 2 is a cross-sectional view of the charging device housing 10 shown in FIG. 1. FIG. 3 is a diagram for explaining an intake route between the upper part of the charging unit and the operation unit housing 10b in the charging device housing 10 shown in FIG. 1, and is a cross-sectional view for explaining a method of cooling the inside of the charging device housing 10 of the charging device according to an aspect of the present invention. FIG. 4 is a view showing a part of the back surface of the charging device housing 10 shown in FIG. 1.

[0033] As shown in FIG. 1, a charging device according to an aspect of the present invention includes a vertically long charging device housing 10 when the charging device is installed. The charging device housing 10 includes a vertically long input / output housing 10a located on the right side with respect to the front surface 11, an operation unit housing 10b located above the center in the longitudinal direction with respect to the front surface 11, and a unit mounting portion 30 located below the operation unit housing 10b. In the present embodiment, the input / output housing 10a is arranged on the right side with respect to the front surface 11, but the input / output housing 10a may be arranged on the left side with respect to the front surface 11.

[0034] A control circuit unit 20 is mounted in the operation unit housing 10b. A main circuit unit 40 is mounted in the input / output housing 10a, and this main circuit unit 40 has an input unit and an output unit 42 (see FIG. 1). The control circuit unit 20 includes a display unit 21, a communication control unit 22, and a charging control unit 23 (see FIG. 1). The control circuit unit 20 has components with lower heat resistance than the main circuit unit 40. Each of the input / output housing 10a and the operation unit housing 10b is a housing that does not have an air intake port for introducing outside air.

[0035] As shown in FIGS. 2 to 4, an air inlet 151 is disposed on the back surface 12 of the charging device housing 10. This air inlet 151 is formed at a position facing the operation unit housing 10b (see FIGS. 2 and 3). The operation unit housing 10b is disposed on the front surface 11 side of the charging device housing 10.

[0036] A charging unit is mounted on the lower unit mounting portion 30 inside the charging device housing 10. This charging unit has a first charging unit 30a, a second charging unit 30b, and a third charging unit 30c (see FIGS. 1, 5, and 6). Above the charging unit, a fan 31 for cooling the charging unit is disposed. The charging device has a mechanism (not shown) for rotating the fan 31. Specifically, as shown in FIG. 1, a first fan 31a is disposed above the first charging unit 30a, and the charging device has a first mechanism (not shown) for rotating the first fan 31a. A second fan 31b is disposed above the second charging unit 30b, and the charging device has a second mechanism (not shown) for rotating the second fan 31b. A third fan 31c is disposed above the third charging unit 30c, and the charging device has a third mechanism (not shown) for rotating the third fan 31c.

[0037] The operation unit housing 10b on which the control circuit unit 20 with lower heat resistance than the main circuit unit 40 is mounted is isolated from the unit mounting portion 30 on which the charging unit with a larger heat generation amount than the main circuit unit 40 is mounted and the input / output housing 10a on which the main circuit unit 40 with a larger heat generation amount than the control circuit unit 20 is mounted. Thereby, thermal interference can be suppressed.

[0038] As shown in FIGS. 2 and 3, the above charging device rotates the fan 31 (the first to third fans 31a, 31b, 31c), and the air 61 sucked in from the intake port 151 passes through the back surface of the operation unit housing 10b, so that the operation unit housing 10b is cooled. And the air 61 sucked into the charging unit by the fan 31 is exhausted from below the unit mounting portion 30 (see FIG. 2). Normally, the upper temperature is high and the lower temperature is low. Therefore, by making the air 61 flow in the unit from top to bottom in this way, there is also an effect of equalizing the temperature inside the unit.

[0039] Further, the charging device housing 10 has an air introduction path portion 150 that forms a path for turning the flow of the air 61 sucked in from the intake port 151 upward by the surface facing the intake port 151 and discharging the air 61 to the back surface 12 side of the charging device housing 10. The air introduction path portion 150 is disposed inside the charging device housing 10. Each of the upper side and the lower side of the outlet of the air introduction path portion 150 is provided with a water return structure 150a (see FIG. 3). Thereby, it is possible to prevent rainwater from directly entering the inside of the charging device housing 10. More specifically, the air introduction path portion 150 has a first air introduction portion 150A and a second air introduction portion 150B. The first air introduction portion 150A is plate-shaped and extends in the left-right direction, and includes a first introduction portion 150A1 that extends obliquely upward from the lower end 151a side of the intake port 151 toward the operation unit housing 10b side (front side), a second introduction portion 150A2 that extends upward from the upper end 150A1' of the first introduction portion 150A1, a third introduction portion 150A3 that extends horizontally from the upper end 150A2' of the second introduction portion 150A2 toward the back side, and a fourth introduction portion 150A4 that extends obliquely downward from the end 150A3' on the back side of the third introduction portion 150A3 toward the back side. The fourth introduction portion 150A4 has the above-described water return structure 150a. Further, the second air introduction part 150B is plate-shaped and extends in the left-right direction, and includes a first introduction part 150B1 that extends horizontally from the upper end 151b side of the air inlet 151 toward the operation unit housing 10b side (front side), and a second introduction part 150B2 that extends in an inclined manner so as to descend from the end 150B1' on the operation unit housing 10b side (front side) of the first introduction part 150B1 toward the operation unit housing 10b side (front side). The second introduction part 150B2 has the water return structure 150a described above. The air 61 sucked in from the air inlet 151 is guided by the surface 150A' on the back side of the first air introduction part 150A so as to be turned upward and then flows toward the back side. It passes between the water return structure 150a of the first air introduction part 150A and the water return structure 150a of the second air introduction part 150B. However, since the water blown up during windy and rainy weather enters linearly, different from the air flow line, it does not collide with either of the two water return structures 150a and water does not enter the inside of the unit mounting part. The air 61 is guided so as to turn from the back side to the front side and flows along the third introduction part 150A3 of the first air introduction part 150A. While merging with the air sucked in from the air inlet 152, it flows downward between the front side of the second introduction part 150A2 of the first air introduction part 150A and the back side of the operation unit housing 10b and reaches the charging unit 30. In the air introduction path part 150, as shown in FIG. 3, a straight line L connecting the end 150A4' of the fourth introduction part 150A4 in the first air introduction part 150A and the end 150B2' of the second introduction part 150B2 in the second air introduction part 150B passes slightly below the lower end 151a of the air inlet 151. Therefore, the water droplets blown up from the air inlet 151 surely collide with the first air introduction part 150A and the second air introduction part 150B, and water does not enter the inside of the unit mounting part. That is, when the lower end 151a of the intake port 151 is located below the straight line (broken line) L connecting the end 150A4' of the fourth introduction part 150A4 in the first air introduction part 150A and the end 150B2'' of the second introduction part 150B2 in the second air introduction part 150B, there is a possibility that the water droplets blown up from the intake port 151 do not collide with either the first air introduction part 150A or the second air introduction part 150B and water may enter the inside of the unit mounting part. The air 61 is guided to fold back from the back side to the front side, flows along the third path part 150A3 of the first air introduction path part 150A, and while merging with the air sucked from the intake port 152, it flows downward between the front side of the second introduction part 150A2 of the first air introduction path part 150A and the back side of the operation part housing 10b to reach the charging unit. A structure 152' for blocking water is provided at the intake port 152 before the air sucked from the intake port 152 merges with the air 61 from the intake port 151, and it is possible to prevent rainwater from directly entering the inside of the unit mounting part 30 from the intake port 152.

[0040] In addition, an intake port 152 for sucking air to cool the control circuit part 20 is provided at the upper part of the operation part housing 10b. Thereby, it is possible to suppress a temperature rise in the control circuit part 20 having components with low heat resistance in the operation part housing 10b.

[0041] As shown in FIG. 1, the input / output housing 10a is formed such that the end 10c side of the operation unit housing 10b enters therein. When the air 61 sucked in from the air intake 151 shown in FIGS. 2 and 3 passes through the back surface 11b of the operation unit housing 10b, the air 61 passes through the side surface 13 of the input / output housing 10a shown in FIG. 4 located within the charging device housing 10, so that the side surface 13 of the input / output housing 10a is air-cooled. By being air-cooled, the cooling of the side surface 13 is promoted, and the temperature environment within the input / output housing 10a can be improved. Further, when the warm air flows upward from below inside the input / output housing 10a due to the end 10c side of the operation unit housing 10b entering the input / output housing 10a, the warm air is cooled by the operation unit housing 10b in which the temperature rise is suppressed compared to the inside of the input / output housing 10a. As a result, the temperature rise in the upper part of the input / output housing 10a can be suppressed.

[0042] Also, as shown in FIG. 4, the charging device has an outside air exposure surface 14 at the upper part of the input / output housing 10a located within the charging device housing 10. Thereby, the heat radiation area of the input / output housing 10a is increased, and the temperature environment within the input / output housing 10a can be improved.

[0043] Also, a heat sink (see FIGS. 2 and 3) not shown may be disposed within the charging device housing 10 and on the back surface 11b of the operation unit housing 10b. Thereby, the operation unit housing 10b can be cooled more from the back surface 11b, and as a result, the temperature rise within the low heat-resistant control circuit unit 20 mounted within the operation unit housing 10b can be suppressed.

[0044] As shown in FIGS. 1 and 7, an input unit 41 is disposed at the lower stage of the input / output housing 10a and adjacent to the charging unit. Note that FIG. 7 is a diagram showing the details of the internal structure at the center of the right side surface of the input / output housing 10a in FIG. 1.

[0045] As shown in FIGS. 1 and 7, the input unit 41 has an input terminal 41a to which power from the outside (not shown) is input. An output unit 42 is disposed above the input unit 41 at the upper stage of the input / output housing 10a. The output unit 42 has an output terminal 42a to which power converted by a charging unit including first to third charging units 30a to 30c is output. The input terminal 41a is disposed below the input unit 41, and the output terminal 42a is disposed above the output unit 42. In the present embodiment, the input unit 41 is disposed next to the first charging unit 30a. Further, the output unit 42 is disposed above the input unit 41.

[0046] FIG. 5 is a perspective view showing details of the internal structure between the upper part of the charging unit and the operation unit housing as viewed from the back side of the charging device housing 10 shown in FIG. 1. FIG. 6 is a view showing details of a part of the center on the front side of the charging device housing 10 shown in FIG. 1, showing from the upper part of the charging unit to the center part of the operation unit housing 10b.

[0047] An AC wiring 50 for inputting an AC current from the input unit 41 to the charging unit and a DC wiring 52 for inputting the power converted by the charging unit to the output unit 42 are disposed outside the input / output housing 10a and below the intake port 151 in the charging device housing 10 (see FIGS. 1 and 5 to 7). That is, most of the AC wiring 50 and the DC wiring 52, which are input / output wirings, are not disposed in the input / output housing 10a, but are disposed outside the input / output housing 10a and in the outside air introduction part below the intake port 151 in the charging device housing 10. Thereby, the input / output wiring can be efficiently cooled, and the influence on the input / output housing 10a due to heat generation from the input / output wiring can be suppressed.

[0048] According to this embodiment, a vertically long input / output housing 10a is arranged on the right or left side with respect to the front face 11 inside the charging device housing 10, an operation unit housing 10b is arranged above the longitudinal center with respect to the front face 11, and a unit mounting portion 30 located below the operation unit housing 10b is arranged. A main circuit portion 40 having an input portion 41 and an output portion 42 is mounted in the input / output housing 10a, and a control circuit portion 20 having components with lower heat resistance than the main circuit portion 40 is mounted in the operation unit housing 10b. By isolating the operation unit housing 10b in which the control circuit portion 20 with lower heat resistance is mounted from the unit mounting portion 30 on which a charging unit serving as the main heat generating portion is mounted and the input housing 10a in which the main circuit portion 40 with more heat generating portions than the control circuit portion 20 is mounted, the mounting areas of these control circuit portion 20, main circuit portion 40, and charging unit are separately arranged within the charging device housing 10. Then, the fan 31 arranged above the charging unit is rotated, and the charging unit is cooled by the air 61 sucked in from the air intake port 151. As a result, it is possible to provide a charging device that can be efficiently cooled while suppressing thermal interference. In other words, a main circuit portion 40 having an input portion 41 and an output portion 42 is mounted in the input / output housing 10a, and a control circuit portion 20 having components with a lower heat generation amount and lower heat resistance than the main circuit portion 40 is mounted in the operation unit housing 10b that is thermally isolated from the input / output housing 10a. Further, the unit mounting portion 30 with the largest heat generation amount has a structure cooled by outside air. By rotating the fan 31 arranged above the charging unit and allowing the air 61 sucked in from the air intake port 151 to pass through the rear face 11b of the operation unit housing 10b, the operation unit housing 10b and the charging unit are cooled. Thereby, the mounting area of the control circuit portion 20 having components with lower heat resistance can be isolated from the unit mounting portion 30 and the main circuit portion 40, and while suppressing thermal interference, the temperature rise of the control circuit portion 20 having components with lower heat resistance can be suppressed. As a result, it can be efficiently cooled.

[0049] The wiring will be described below. As shown in FIG. 1, an AC wiring port 51 is disposed below the lower stage of the input / output housing 10a and above the input terminal 41a. The AC wiring port 51 is a wiring port for an AC wiring 50 that inputs an AC current from the input unit 41 to the charging unit (see FIGS. 1, 5, and 6). Specifically, the AC wiring 50 includes a first AC wiring 50a, a second AC wiring 50b, and a third AC wiring 50c, and the AC wiring port 51 includes a first AC wiring port 51a, a second AC wiring port 51b, and a third AC wiring port 51c. The first AC wiring 50a is connected to the first AC wiring port 51a, the second AC wiring 50b is connected to the second AC wiring port 51b, and the third AC wiring 50c is connected to the third AC wiring port 51c.

[0050] Also, as shown in FIG. 1, the DC wiring port 53 is disposed above the upper stage of the input / output housing 10a and below the output terminal 42a. The DC wiring port 53 is located above the AC wiring port 51 and below the operation unit housing 10b. Further, the DC wiring port 53 is disposed on the front surface 11 side of the input / output housing 10a, and the AC wiring port 51 is disposed on the rear surface 12 side of the input / output housing 10a (see FIG. 7). The DC wiring port 53 has a first DC wiring port 53a, a second DC wiring port 53b, and a third DC wiring port 53c (see FIG. 7). Note that the DC wiring port 53 is preferably located above the AC wiring port 51 and linearly arranged along the flow of the circuit. Thereby, the influence of mutual noise between AC and DC can be prevented.

[0051] As shown in FIGS. 5 and 6, the charging unit has an input connector 32, an output connector 33, and a signal connector 34 that are arranged separately from each other.

[0052] Specifically, as shown in FIGS. 5 and 6, the input connector 32 has a first input connector 32a, a second input connector 32b, and a third input connector 32c. The output connector 33 has a first output connector 33a, a second output connector 33b, and a third output connector 33c. The signal connector 34 has a first signal connector 34a, a second signal connector 34b, and a third signal connector 34c. The first input connector 32a, the first output connector 33a, and the first signal connector 34a are attached to the first charging unit 30a. The second input connector 32b, the second output connector 33b, and the second signal connector 34b are attached to the second charging unit 30b. The third input connector 32c, the third output connector 33c, and the third signal connector 34c are attached to the third charging unit 30c.

[0053] As shown in FIGS. 5 and 6, an AC wiring 50 is connected to the input connector 32, a DC wiring 52 is connected to the output connector 33, and a signal wiring 54 is connected to the signal connector 34. The DC wiring 52 has a first DC wiring 52a, a second DC wiring 52b, and a third DC wiring 52c (see FIG. 6). Then, the first DC wiring 52a is connected to the first DC wiring port 53a, the second DC wiring 52b is connected to the second DC wiring port 53b, and the third DC wiring 52c is connected to the third DC wiring port 53c (see FIGS. 6 and 7).

[0054] As shown in FIGS. 5 and 6, a signal wiring 54 that electrically connects the control circuit unit 20 and the charging unit mounted in the operation unit housing 10b is directly drawn into the operation unit housing 10b without passing through the input / output housing 10a (see FIGS. 1 and 6). Specifically, the first signal connector 34a of the first charging unit 30a is connected to one end of the first signal wiring 54a, the other end of the first signal wiring 54a is directly drawn into the operation unit housing 10b without passing through the input / output housing 10a, and the other end of the first signal wiring 54a is electrically connected to the control circuit unit 20. The second signal connector 34b of the second charging unit 30b is connected to one end of the second signal wiring 54b, the other end of the second signal wiring 54b is directly drawn into the operation unit housing 10b without passing through the input / output housing 10a, and the other end of the second signal wiring 54b is electrically connected to the control circuit unit 20. The third signal connector 34c of the third charging unit 30c is connected to one end of the third signal wiring 54c, the other end of the third signal wiring 54c is directly drawn into the operation unit housing 10b without passing through the input / output housing 10a, and the other end of the third signal wiring 54c is electrically connected to the control circuit unit 20.

[0055] The connection relationship will be described in detail below. As shown in FIGS. 5 to 7, the AC wiring port 51 of the input unit 41 is connected to one end of the AC wiring 50, and the other end of the AC wiring 50 is electrically connected to the charging unit via the input connector 32. This charging unit has an output connector 33, and this output connector 33 is connected to one end of the DC wiring 52, and the other end of the DC wiring 52 is connected to the DC wiring port 53.

[0056] The connection relationship will be described in more detail. The first AC wiring port 51a of the input unit 41 is connected to one end of the first AC wiring 50a, and the other end of the first AC wiring 50a is electrically connected to the first charging unit 30a via the first input connector 32a. The first charging unit 30a has a first output connector 33a, and this first output connector 33a is connected to one end of the first DC wiring 52a. The other end of the first DC wiring 52a is connected to the first DC wiring port 53a.

[0057] The second AC wiring port 51b of the input unit 41 is connected to one end of the second AC wiring 50b, and the other end of the second AC wiring 50b is electrically connected to the second charging unit 30b via the second input connector 32b. The second charging unit 30b has a second output connector 33b, and this second output connector 33b is connected to one end of the second DC wiring 52b. The other end of the second DC wiring 52b is connected to the second DC wiring port 53b.

[0058] The third AC wiring port 51c of the input unit 41 is connected to one end of the third AC wiring 50c, and the other end of the third AC wiring 50c is electrically connected to the third charging unit 30c via the third input connector 32c. The third charging unit 30c has a third output connector 33c, and this third output connector 33c is connected to one end of the third DC wiring 52c. The other end of the third DC wiring 52c is connected to the third DC wiring port 53c.

[0059] The flow of current will be described in detail below. Electric power from the outside is input to the input unit 41 shown in FIG. 7 through the input terminal 41a shown in FIG. 1. The electric power passes through the input wiring and the AC filter (AC-FIL) 71 and is input to the AC wiring 50 (the first AC wiring 50a, the second AC wiring 50b, and the third AC wiring 50c) of the AC wiring ports 51 (the first AC wiring port 51a, the second AC wiring port 51b, and the third AC wiring port 51c) of the input unit 41 (see FIGS. 6 and 7). Then, the electric power passes through the AC wiring 50 and the input connectors 32 (the first input connector 32a, the second input connector 32b, and the third input connector 32c) and is input to the charging units (the first charging unit 30a, the second charging unit 30b, and the third charging unit 30c) (see FIGS. 5 and 6). Note that the input unit 41 has a leakage circuit breaker 70 (see FIG. 7).

[0060] The power converted by the charging unit is input into the DC wiring 52 (the first DC wiring 52a, the second DC wiring 52b, and the third DC wiring 52c) through the output connectors 33 (the first output connector 33a, the second output connector 33b, and the third output connector 33c) shown in FIGS. 5 and 6. The power input into the DC wiring 52 is output to the output unit 42 through the DC wiring ports 53 (the first DC wiring port 53a, the second DC wiring port 53b, and the third DC wiring port 53) shown in FIG. 2 (see FIGS. 2 and 3). In the output unit 42 shown in FIG. 7, power is output from the output terminal 42a shown in FIG. 1 through the output wiring and the DC filter (DC-FIL) 72 from the DC wiring port 53.

[0061] According to the present embodiment, the input unit 41 is arranged at the lower stage of the input / output housing 10a, the output unit 42 is arranged at the upper stage of the input / output housing 10a, the input terminal 41a of the input unit 41 is arranged below the input unit 41, and the output terminal 42a of the output unit 42 is arranged above the output unit 42. Thereby, the input terminal 41a and the output terminal 42a can be configured to be separated as much as possible. Thereby, EMI countermeasures and noise countermeasures can be further improved. Further, by arranging the input unit 41 downward, components such as the leakage circuit breaker 70 having low heat resistance among the main circuits can be arranged on the bottom surface side where the temperature rise is relatively low.

[0062] Further, according to the present embodiment, the AC wiring port 51 is arranged at the lower stage of the input / output housing 10a and above the input terminal 41a, and the DC wiring port 53 is arranged at the upper stage of the input / output housing 10a and below the output terminal 42a. Then, the DC wiring port 53 is positioned above the AC wiring port 51, the DC wiring port 53 is positioned below the operation unit housing 10b, the DC wiring port 53 is arranged on the front surface 11 side of the input / output housing 10a, the AC wiring port 51 is arranged on the back surface 12 side of the input / output housing 10a, and the signal wiring 54 is directly drawn into the operation unit housing 10b without passing through the input / output housing 10a (see FIGS. 1, 5 to 7). Thereby, the AC wiring 50 and the DC wiring 52 are separated in the input / output housing 10a, the signal wiring 54 is directly drawn into the operation unit housing 10b, and the wiring route is such that the signal wiring 54 does not cross. As a result, EMI countermeasures and noise countermeasures can be further improved. Also, by arranging most of the AC wiring 50 and DC wiring 52 that generate heat due to the current in the main circuit in the unit mounting portion cooled by the outside air, the amount of heat generated in the input / output housing can be suppressed, and the temperature rise in the input / output housing can be suppressed.

[0063] Also, according to the present embodiment, the input connector 32, output connector 33, and signal connector 34 of the charging unit are arranged separately from each other. The AC wiring 50 is connected to the input connector 32, the DC wiring 52 is connected to the output connector 33, and the signal wiring 54 is connected to the signal connector 34. By dividing the connectors of the charging unit into input, output, and signal in this way, a wiring route that does not cross can be obtained. As a result, EMI countermeasures and noise countermeasures can be further improved.

[0064] The charging unit according to the present embodiment may be one that converts the power input from the outside into power for charging an electric vehicle. Thereby, it becomes possible to use the above charging device as a charging device for an electric vehicle.

Description of Reference Numerals

[0065] 10 Charging device housing 10a Input / output housing 10b Operation unit housing 10c End portion of the operation unit housing 11 Front surface of the input / output housing 11b Rear surface of the operation unit housing 12 Rear surface of the input / output housing 13 Side surface of the input / output housing 14 Outside air exposure surface 20 Control circuit section 21 Display section 22 Communication control section 23 Charging control section 30 Unit mounting portion 31 Fan 40 Main circuit section 41 Input section 42 Output section 50 AC wiring 52 DC wiring 61 Air 150 Air introduction path section 150a Structure of water return 151, 152 Intake ports

Claims

1. A vertically long charging device housing when the charging device is installed, comprising a vertically long input / output housing located on the right or left side with respect to the front, an operation unit housing located above the center in the longitudinal direction with respect to the front, and a unit mounting portion located below the operation unit housing; A control circuit unit mounted in the operation unit housing; An air intake formed on the back surface of the charging device housing at a position facing the operation unit housing; Exhaust ports formed on the front and back of the bottom surface of the charging device housing; A charging unit mounted on the lower unit mounting portion within the charging device housing; A main circuit unit mounted in the input / output housing and having an input portion and an output portion; A fan disposed above the charging unit for cooling the charging unit, which is the main heat generating portion, with outside air taken in from the air intake; and Each of the input / output housing and the operation unit housing is a housing having no air intake for introducing outside air; The charging device, wherein the control circuit unit has components with lower heat resistance compared to the charging unit and the main circuit unit.

2. In Claim 1, The charging device, wherein the operation unit housing in which the control circuit unit with lower heat resistance than the main circuit unit is mounted is isolated from each of the unit mounting portion on which the charging unit with a larger heat generation amount than the main circuit unit is mounted and the input / output housing in which the main circuit unit with a larger heat generation amount than the control circuit unit is mounted.

3. In Claim 1 or 2, The charging device, wherein the fan is rotated, and the operation unit housing is cooled by the air sucked in from the air intake passing through the back surface of the operation unit housing.

4. In Claim 1 or 2, An air introduction path portion is disposed within the charging device housing, and a path is formed by the surface facing the air intake to turn the flow of air sucked in from the air intake upward and discharge the air to the back side of the charging device housing; The charging device, wherein each of the upper and lower sides of the outlet of the air introduction path portion is provided with a water return structure.

5. In Claim 1 or 2, The charging device, wherein an air intake for sucking air to cool the control circuit unit is provided above the operation unit housing.

6. In Claim 1 or 2, The charging device, wherein the input / output housing is formed such that an end side of the operation unit housing enters therein.

7. In Claim 1 or 2, A charging device, characterized in that when the air sucked in from the intake port passes through the back surface of the operation unit housing, the air passes through the side surface of the input / output housing located in the charging device housing, thereby air-cooling the input / output housing.

8. In Claim 1 or 2, the AC wiring for inputting an alternating current from the input unit to the charging unit and the DC wiring for inputting the power converted by the charging unit to the output unit are arranged outside the input / output housing and below the intake port in the charging device housing. The charging device is characterized in that the AC wiring and the DC wiring are air-cooled by the air sucked in from the intake port.

9. In Claim 1 or 2, the charging device is characterized in that the upper part of the input / output housing located in the charging device housing has an outside air-exposed surface.

10. In Claim 1 or 2, the charging device is characterized by having a heat sink arranged in the charging device housing and on the back surface of the operation unit housing.

11. In Claim 1 or 2, the charging device is characterized in that the control circuit section includes a display section, a communication control section, and a charging control section.

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