charger
The charging device addresses EMI and noise issues by isolating circuit sections and optimizing wiring configurations, resulting in improved reliability and performance.
Patent Information
- Application Number
- JP2023222483
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-07-10
AI Technical Summary
Conventional charging devices face challenges in ensuring adequate physical distance between wirings for input, output, and signal components, leading to issues with Electro Magnetic Interference (EMI) and noise, which are not effectively addressed by existing countermeasures.
The charging device is designed with a housing configuration that isolates the control circuit section and main circuit section, separates the input and output units, and routes wirings to prevent crossings, using separate connectors and direct signal wiring paths to minimize EMI and noise interference.
This design effectively reduces EMI and noise interference, enhancing the reliability and performance of the charging device by isolating critical components and optimizing wiring configurations.
Smart Images

Figure 2025104580000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a charging device.
Background Art
[0002] Conventional charging devices only introduced outside air by isolating only the charging unit with a very high heat generation density to ensure the environmental resistance performance of the charging unit alone, and the other components were mounted in the same compartment isolated from the outside air. In addition, the input unit, output unit, and signal circuit were connected to the charging unit by an integrated composite connector. As a result, it was difficult to ensure a physical distance between the wirings for each of the input, output, and signal. Therefore, it has been required to further improve the countermeasures against EMI (Electro Magnetic Interference) and noise. Related techniques are disclosed in Patent Document 1.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Various aspects of the present invention aim to provide a charging device with improved EMI countermeasures and noise countermeasures.
Means for Solving the Problems
[0005] Various aspects of the present invention will be described below.
[0006] [1] A charging device housing including an input / output housing located on the right or left side with respect to the front and an operation unit housing located above the center in the vertical direction with respect to the front, A control circuit unit mounted in the operation unit housing, It is mounted inside the input / output housing and has a main circuit section having an input section and an output section. A charging device characterized in that the control circuit section and the main circuit section are isolated (shielded). Note that the charging device housing may be a vertically long housing when the charging device is installed. In this case, the above-mentioned "vertical direction" is the longitudinal direction.
[0007] According to the charging device of the above [1] according to one aspect of the present invention, the charging device housing includes an input / output housing located on the right or left side with respect to the front and an operation unit housing located above the center in the vertical direction with respect to the front. A control circuit section is mounted inside the operation unit housing, and a main circuit section having an input section and an output section is mounted inside the input / output housing. Therefore, the main circuit section and the control circuit section can be isolated (shielded) by the input / output housing and the operation unit housing. Thereby, it is difficult for the EMI noise generated from the main circuit section to be received by the control circuit section, and malfunction due to noise can be suppressed.
[0008] [2] In the above [1], It has a unit mounting section mounted below the charging device housing and below the operation unit housing, and a charging unit is mounted on the unit mounting section. The input section is arranged at the lower stage of the input / output housing. The output section is arranged at the upper stage of the input / output housing. The input section has an input terminal to which external power is input. The output section has an output terminal to which the power converted by the charging unit is output. The input terminal is arranged below the input section. The output terminal is arranged above the output section. The control circuit section, the main circuit section, and the unit mounting section are isolated (shielded). A charging device characterized in that the input section and the output section are arranged so as to be isolated or a distance is ensured therebetween. Note that it is preferable that the input section is arranged isolated in the vicinity of the charging unit. Further, it is preferable that the output unit is disposed separately in the vicinity of the charging unit and is also disposed separately from or at a distance from the input unit.
[0009] According to the charging device of [2] according to one aspect of the present invention, an input unit is disposed at the lower stage of the input / output housing, an output unit is disposed at the upper stage of the input / output housing, an input terminal of the input unit is disposed below the input unit, and an output terminal of the output unit is disposed 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 further improved. Further, since the operation unit housing and the unit mounting portion are separated by a housing, it is possible to make it difficult for the control circuit unit to be affected by switching noise generated from the charging unit, and it is possible to suppress malfunction due to noise. Further, since the input / output housing and the unit mounting portion are also separated in the same manner, it is possible to make it difficult for the main circuit to be affected by switching noise generated from the charging unit, and the EMI characteristics can be improved.
[0010] [3] In the above [2], an AC wiring port of an AC wiring for inputting an AC current from the input unit to the charging unit is disposed at the lower stage of the input / output housing and above the input terminal, a DC wiring port of a DC wiring for inputting the power converted by the charging unit to the output unit is disposed at the upper stage of the input / output housing and below the output terminal, the DC wiring port is located above the AC wiring port 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 signal wiring connecting the charging unit and the control circuit unit is directly drawn into the operation unit housing without passing through the input / output housing, a charging device, characterized in that the AC wiring, the DC wiring, and the signal wiring do not cross each other. Note that it is preferable that the DC wiring port is disposed separately from the AC wiring above the charging unit.
[0011] According to the charging device of [3] according to one aspect of the present invention, an AC wiring port is arranged below the input / output housing and above the input terminal 41a, a DC wiring port is arranged above 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 arranged on the front side of the input / output housing, the AC wiring port is arranged 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 (see FIGS. 1 to 4). Thereby, the AC wiring and the DC wiring are separated within the input / output housing, the signal wiring is directly drawn into the operation unit housing, and a wiring route is formed in which the signal wiring does not cross. As a result, EMI countermeasures and noise countermeasures can be further improved.
[0012] [4] In the above [3], 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.
[0013] According to the charging device of [4] according to one aspect of the present invention, the input connector, the output connector, and the signal connector included in the charging unit are arranged separately from each other, the AC wiring is connected to the input connector, the DC wiring is connected to the output connector, and the signal wiring is connected to the signal connector. By thus dividing the connectors of the charging unit into input, output, and signal, a wiring route that does not cross can be achieved. As a result, EMI countermeasures and noise countermeasures can be further improved.
[0014] [5] In the above [2], A charging device, characterized in that the charging unit converts the power input from the outside into power for charging an electric vehicle.
[0015] According to the charging device of [5] according to one aspect of the present invention, since the charging unit converts the power input from the outside into the power for charging the electric vehicle, this charging device can be used as a charging device for electric vehicles.
[0016] [6] In any one of [1], [2], and [5] above, The charging device is characterized in that the control circuit unit includes a display unit, a communication control unit, and a charging control unit.
[0017] [7] In [6] above, An air inlet formed on the back surface of the charging device housing and arranged to face the operation unit housing, A fan arranged above the charging unit for cooling the charging unit, A mechanism for rotating the fan and The charging device is characterized in that the fan is rotated so that the air sucked in from the air inlet passes through the back surface of the operation unit housing.
[0018] According to the charging device of [7] according to one aspect of the present invention, a control circuit unit including a display unit, a communication control unit, and a charging control unit is mounted in the operation unit housing, and components with low heat resistance are mounted on the control circuit unit. Then, by rotating the fan arranged above the charging unit and allowing the air sucked in from the air inlet to pass through the back surface of the operation unit housing to cool the operation unit housing, it is possible to suppress the temperature rise of the control circuit unit on which components with low heat resistance are mounted.
[0019] [8] In any one of [1] to [5] above, The charging device housing has a sealed space located above the operation unit housing, The charging device is characterized in that the sealed space is a space for mounting components from the rear. According to the charging device of [8] according to one aspect of the present invention, since the charging device housing is located above the operation unit housing and has a sealed space in which no components or the like are mounted, when there is a demand from a customer who wants to install, for example, signage in this sealed space, it is possible to mount a DC power supply, a control circuit board, etc. in the sealed space even later. The advantage of this sealed space is that it is a space isolated from each circuit of the charging device, so it is difficult to be affected by noise from each other, and it is also a thermally independent space, whereby even low heat-resistant components can be mounted. [9] In any one of [1] to [8] above, A charging device, characterized in that an air intake for sucking air is provided above the operation unit housing to cool the control circuit unit. According to the charging device of [9] according to one aspect of the present invention, by providing an air intake for sucking air above the operation unit housing to cool the control circuit unit, it is possible to suppress a temperature rise of the control circuit unit having components with low heat resistance in the operation unit housing.
[10] In [9] above, A charging device, characterized in that it has a heat sink (not shown) disposed in the charging device housing and disposed on the back surface of the operation unit housing.
[0020] According to the charging device of
[10] according to one aspect of the present invention, by disposing 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, it is possible to suppress a temperature rise of the control circuit unit in which components with low heat resistance are mounted.
Effects of the Invention
[0021] According to various aspects of the present invention, it is possible to provide a charging device with improved EMI countermeasures and noise countermeasures.
Brief Description of the Drawings
[0022]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Embodiments for Carrying Out the Invention
[0023] 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 it is easily understood by those skilled in the art that the form and details thereof 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.
[0024] FIG. 1 is a schematic perspective view for explaining a charging device according to an aspect of the present invention. FIG. 2 is a diagram showing details of the internal structure at the center of the right side surface of the input / output housing 10a shown in FIG. 1. FIG. 3 is a diagram showing details of a part at the center of the front side of the charging device housing 10 shown in FIG. 1, showing from the upper part of the charging unit to the central part of the operation unit housing 10b. FIG. 4 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.
[0025] As shown in FIG. 1, a charging device according to an aspect of the present invention includes an input / output housing 10a located on the right side with respect to the front surface 11 and an operation unit housing 10b located above the center in the vertical direction with respect to the front surface 11. In this 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.
[0026] The control circuit unit 20 is mounted inside the operation unit housing 10b. Further, the main circuit unit 40 is mounted inside the input / output housing 10a, and this main circuit unit 40 has an input unit 41 and an output unit 42 (see FIGS. 1 and 2). The input unit 41 and the output unit 42 are arranged with isolation or a distance secured therebetween. Further, the control circuit unit 20 includes a display unit 21, a communication control unit 22, and a charging control unit 23 (see FIG. 1). Further, the control circuit unit 20 and the main circuit unit 40 are isolated (shielded). Note that the charging device has a charging device housing 10, and the charging device housing 10 is a vertically long housing when the charging device is installed. In this case, the above-mentioned "vertical direction" is the longitudinal direction.
[0027] A unit mounting portion 30 is mounted below the operation unit housing 10b and below the charging device housing 10, and a charging unit is mounted on the unit mounting portion 30. This charging unit has a first charging unit 30a, a second charging unit 30b, and a third charging unit 30c (see FIGS. 1, 3, and 4). Further, the control circuit unit 20, the main circuit unit 40, and the unit mounting portion 30 are isolated (shielded).
[0028] As shown in FIGS. 1 and 2, the input unit 41 is arranged at the lower stage of the input / output housing 10a. The input unit 41 has an input terminal 41a to which power from the outside (not shown) is input. The output unit 42 is arranged at the upper stage of the input / output housing 10a. The output unit 42 has an output terminal 42a to which the power converted by the charging unit including the first to third charging units 30a to 30c is output. The input terminal 41a is arranged below the input unit 41, and the output terminal 42a is arranged above the output unit 42. Note that the input unit 41 is preferably arranged isolated in the vicinity of the charging unit. In the present embodiment, the input unit 41 is arranged adjacent to the first charging unit 30a. Further, the output unit 42 is preferably arranged isolated in the vicinity of the charging unit and arranged with isolation or a distance secured from the input unit 41.
[0029] As shown in Fig. 1, an AC wiring port 51 is arranged 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, 3, and 4). Specifically, the AC wiring 50 has a first AC wiring 50a, a second AC wiring 50b, and a third AC wiring 50c, and the AC wiring port 51 has 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.
[0030] Also, as shown in Fig. 1, the DC wiring port 53 is arranged 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. Also, the DC wiring port 53 is arranged on the front 11 side of the input / output housing 10a, and the AC wiring port 51 is arranged on the back 12 side of the input / output housing 10a (see Fig. 2). 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. 2). Note that it is preferable to arrange the DC wiring port 53 above the charging unit so as not to intersect the AC wiring 50.
[0031] As shown in Figs. 3 and 4, the charging unit has an input connector 32, an output connector 33, and a signal connector 34 that are arranged separately from each other.
[0032] Specifically, as shown in FIGS. 3 and 4, 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 33a, 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.
[0033] As shown in FIGS. 3 and 4, 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 AC wiring 50, the DC wiring 52, and the signal wiring 54 do not cross each other. The DC wiring 52 has a first DC wiring 52a, a second DC wiring 52b, and a third DC wiring 52c (see FIG. 3). 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. 2 and 3).
[0034] The connection relationship will be described in detail below. As shown in FIGS. 2 to 4, 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.
[0035] The connection relationship will be further described in 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.
[0036] 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.
[0037] 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.
[0038] The flow of current will be described in detail below. External power is input into the input section 41 shown in FIG. 2 through the input terminal 41a shown in FIG. 1. The power is input into 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 section 41 through the input wiring and the AC filter (AC-FIL) 71 (see FIGS. 2 and 3). Then, the power is input into the charging units (the first charging unit 30a, the second charging unit 30b, and the third charging unit 30c) 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) (see FIGS. 3 and 4). Note that the input section 41 has a leakage circuit breaker 70 (see FIG. 2).
[0039] 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. 3 and 4. The power input into the DC wiring 52 is output to the output section 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 section 42 shown in FIG. 2, 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.
[0040] As shown in FIGS. 3 and 4, the 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 3). 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. As shown in FIG. 1, the charging device housing 10 is located above the operation unit housing 10b and has a sealed space 10d in which no components or the like are mounted. Therefore, when there is a customer's desire to install, for example, signage in this sealed space 10d, it is possible to mount a DC power supply, a control circuit board, etc. in the sealed space 10d even later. The advantage of this sealed space 10d is that it is a space isolated from each circuit of the charging device, so it is difficult to be affected by noise from each other, and it is also a thermally independent space, whereby even low heat-resistant components can be mounted.
[0041] According to this embodiment, the charging device housing 10 includes an input / output housing 10a located on the right or left side with respect to the front face 11 and an operation unit housing 10b located above the center in the vertical direction with respect to the front face 11. The control circuit unit 20 is mounted in the operation unit housing 10b, and the main circuit unit 40 having a power input unit 41 and an output unit 42 is mounted in the input / output housing 10a. Therefore, the main circuit unit 40 and the control circuit unit 20 can be structured to be isolated (shielded) by the input / output housing 10a and the operation unit housing 10b. Thereby, it is difficult for the EMI noise generated from the main circuit unit 40 to be received by the control circuit unit 20, and malfunction due to noise can be suppressed.
[0042] Also, according to this 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 from each other as much as possible. Thereby, it is difficult for the input terminal 41a and the output terminal 42a to be affected by each other's noise, and EMI countermeasures and noise countermeasures can be further improved. Also, since the operation unit housing 10b and the unit mounting portion 30 are isolated by the housing, it is difficult for the control circuit unit 20 to be affected by the switching noise generated from the charging unit, and malfunction due to noise can be suppressed. Also, since the input / output housing 10a and the unit mounting portion 30 are similarly isolated, it is difficult for the main circuit to be affected by the switching noise generated from the charging unit, and the EMI characteristics can be improved.
[0043] Also, according to the present embodiment, an AC wiring port 51 is disposed below the lower stage of the input / output housing 10a and above the input terminal 41a, and a DC wiring port 53 is disposed above 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 disposed on the front 11 side of the input / output housing 10a, the AC wiring port 51 is disposed on the rear 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 to 4). Thereby, the AC wiring 50 and the DC wiring 52 are separated within the input / output housing 10a, the signal wiring 54 is directly drawn into the operation unit housing 10b, and a wiring route is formed in which the signal wiring 54 does not cross. As a result, EMI countermeasures and noise countermeasures can be further improved.
[0044] Also, according to the present embodiment, the input connector 32, the output connector 33, and the signal connector 34 included in the charging unit are separately arranged, 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 thus dividing the connectors of the charging unit into input, output, and signal, a wiring route that does not cross can be obtained. As a result, EMI countermeasures and noise countermeasures can be further improved.
[0045] The charging unit according to the present embodiment may convert the power input from the outside into power for charging an electric vehicle. The above charging device can be used as a charging device for an electric vehicle.
[0046] FIG. 5 is a diagram for explaining an intake route between the upper part of the charging unit and the operation unit housing in the charging device housing 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 one aspect of the present invention.
[0047] As shown in FIG. 5, an air intake 151 is formed on the back surface 12 of the charging device housing 10, and this air intake 151 is arranged so as to face the operation unit housing 10b. The operation unit housing 10b is arranged on the front surface 11 side of the charging device housing 10. A fan 31 (31a to 31c) for cooling the charging unit is arranged above the charging unit, and the charging device has a mechanism (not shown) for rotating the fan 31. Specifically, as shown in FIG. 1, a first fan 31a is arranged 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 arranged 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 arranged above the third charging unit 30c, and the charging device has a third mechanism (not shown) for rotating the third fan 31c.
[0048] The above charging device rotates the fan 31 (the first to third fans 31a, 31b, 31c), and the air 61 sucked in from the air intake 151 passes through the back surface of the operation unit housing 10b before cooling the inside of the charging unit.
[0049] According to the present embodiment, a control circuit unit 20 including a display unit 21, a communication control unit 22, and a charging control unit 23 is mounted in the operation unit housing 10b, and components with low heat resistance are mounted on the control circuit unit 20. Then, by rotating the fan 31 arranged above the charging unit and allowing the air 61 sucked in from the air intake 151 to pass through the back surface of the operation unit housing 10b and cool the operation unit housing 10b, it is possible to suppress the temperature rise of the control circuit unit 20 on which components with low heat resistance are mounted.
[0050] As shown in FIG. 5, an air intake 152 for sucking air to cool the control circuit unit 20 is provided above the operation unit housing 10b. Thereby, it is possible to suppress the temperature rise of the control circuit unit 20 having components with low heat resistance in the operation unit housing 10b. Note that a heat sink (not shown) may be disposed inside 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, an increase in temperature within the low heat-resistant control circuit unit 20 mounted in the operation unit housing 10b can be suppressed.
[0051] Further, the charging device housing 10 preferably has an air introduction path portion 150 that forms a path for turning the flow of the air 61 sucked from the air inlet 151 upward by the surface facing the air inlet 151 and discharging the air 61 to the back surface 12 side of the charging device housing 10. Each of the upper side and the lower side of the outlet of the air introduction path portion 150 preferably has a water return structure 150a. Thereby, it is possible to prevent rainwater from directly entering the inside of the charging device housing 10 and to efficiently cool the operation unit housing 10b with wind flowing from above the back surface 11b of the operation unit housing 10b.
[0052] Further, an air inlet 152 for sucking air to cool the control circuit unit 20 may be provided at the upper part of the operation unit housing 10b. Thereby, an increase in temperature within the control circuit unit 20 having low heat-resistant components in the operation unit housing 10b can be further suppressed.
Explanation of Reference Numerals
[0053] 10 Charging device housing 10a Input / output housing 10b Operation unit housing 10d Sealed space 11 Front surface of the input / output housing 12 Back surface of the input / output housing 20 Control circuit unit 21 Display unit 22 Communication control unit 23 Charging control unit 30 Unit mounting portion 31 Fan 32 Input connector 33 Output connector 34 Signal connector 40 Main circuit unit 41 Input portion 41a Input terminal 42 Output section 42a Output terminal 50 AC wiring 51 AC wiring port 52 DC wiring 53 DC wiring port 54 Signal wiring 61 Air 151 Intake port
Claims
1. A charging device housing including an input / output housing located on the right or left side with respect to the front and an operation unit housing located above the center in the vertical direction with respect to the front, a control circuit unit mounted in the operation unit housing, a main circuit unit mounted in the input / output housing and having a power input unit and an output unit, wherein the control circuit unit and the main circuit unit are isolated, characterized in that it is a charging device. and characterized in that it is a charging device.
2. In Claim 1, it has a unit mounting part mounted below the operation unit housing and below the lower side in the charging device housing, and a charging unit is mounted on the unit mounting part, the input unit is arranged at the lower stage of the input / output housing, the output unit is arranged at the upper stage of the input / output housing, the input unit has an input terminal to which external power 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 output terminal is arranged above the output unit, the control circuit unit, the main circuit unit, and the unit mounting part are isolated, and the input unit and the output unit are arranged with isolation or ensuring a distance therebetween, characterized in that it is a charging device.
3. In Claim 2, an AC wiring port of the AC wiring for inputting an alternating 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, a DC wiring port of the DC wiring for inputting the power converted by the charging unit to the output unit is arranged at the upper stage of the input / output housing and below the output terminal, the DC wiring port is located above the AC wiring port and below the operation unit housing, the DC wiring port is arranged on the front side of the input / output housing, the AC wiring port is arranged on the back side of the input / output housing, the signal wiring connecting the charging unit and the control circuit unit is directly drawn into the operation unit housing without passing through the input / output housing, and the AC wiring, the DC wiring, and the signal wiring do not cross each other, characterized in that it is a charging device.
4. In Claim 3, the charging unit has an input connector, an output connector, and a signal connector arranged separately from each other, the AC wiring is connected to the input connector, the DC wiring is connected to the output connector, and the signal wiring is connected to the signal connector, characterized in that it is a charging device.
5. In Claim 2, The charging unit is characterized in that it converts the electric power input from the outside into electric power for charging an electric vehicle.
6. In any one of Claims 1, 2, and 5, The control circuit unit is characterized in that it includes a display unit, a communication control unit, and a charging control unit.
7. In Claim 6, An air inlet formed on the back surface of the charging device housing and arranged to face the operation unit housing, A fan arranged on the upper part of the charging unit for cooling the charging unit, And having The charging device is characterized in that the fan is rotated and the air sucked in from the air inlet passes through the back surface of the operation unit housing.
8. In any one of Claims 1 to 5, The charging device housing has a sealed space located above the operation unit housing, The sealed space is characterized in that it is a space for mounting components from the rear.
Citation Information
Patent Citations
Power conversion device
WO2017208384A1