JP5727764B2 - Power receiving connector - Google Patents

Description

  The present invention relates to a power receiving connector attached to a vehicle body as a power feeding connector used for charging a battery in an electric vehicle.

  16 and 17 show a conventional example of a power supply connector used for charging a battery in an electric vehicle.

  This power supply connector 1 is disclosed in the following Patent Document 1, and includes a power supply side connector 3 connected to a power supply device (not shown) and a body of an electric vehicle (not shown) so that the power supply side connector 3 can be fitted and connected. A power receiving side connector 5 attached to the power receiving side connector 5.

  The power receiving-side connector 5 includes a housing body 11, an opening / closing cap 21, a power terminal housing cylinder portion 23, and a signal terminal housing cylinder portion 25.

  The housing body 11 includes an outer cylindrical wall portion 12 in which the cylindrical housing front side cylindrical portion 3a of the power supply side connector 3 is fitted to the inner periphery, and a back wall portion 13 that closes one end side of the outer cylindrical wall portion 12. It is formed in the bottomed cylindrical structure provided. Further, a flange portion 14 that is an attachment portion to the vehicle body is integrally formed on the outer periphery of the outer cylindrical wall portion 12.

  The housing body 11 is attached to the vehicle body with the opening 12a on the other end side of the outer cylindrical wall portion 12 facing upward or obliquely upward.

  The opening / closing cap 21 is a substantially circular lid that covers the opening 12a of the outer cylinder wall 12 so as to be opened and closed. As shown in FIG. 16, the opening / closing cap 21 is provided with a locking portion 21a on one side of the outer periphery, and the other side of the outer periphery facing the locking portion 21a is an outer cylinder wall by a hinge mechanism (not shown). The part 12 is rotatably connected.

  The opening / closing cap 21 can open and close the opening 12a by rotation by the hinge mechanism. In the state in which the opening / closing cap 21 is closed as shown in FIG. 17, the cap locking piece 27 integrally formed on the outer periphery of the outer cylindrical wall portion 12 is engaged with the locking portion 21a, thereby opening the opening 12a. Is fixed in a closed state.

  The power terminal housing cylinder 23 is fixed to the inner wall 13 of the outer cylinder wall 12. In the case of this embodiment, the power terminal housing cylinder part 23 is provided in two places on the left and right sides of the center of the back wall part 13. Further, as shown in FIG. 17, the power terminal housing cylinder portion 23 houses and holds the vehicle body power terminal 28. The vehicle body side power supply terminal 28 is a terminal fitting connected to a device side power supply terminal (not shown) housed and held in the first terminal housing tube portion 31 in the housing front side tube portion 3a.

  The signal terminal housing cylinder part 25 is fixed to the inner wall part 13 inside the outer cylinder wall part 12. In the case of the present embodiment, the signal terminal housing cylinder portion 25 is provided at two locations, upper and lower, across the center of the back wall portion 13. The signal terminal housing cylinder 25 houses and holds a vehicle-side signal terminal (not shown). The vehicle body side signal terminal is a terminal fitting connected to a device side signal terminal (not shown) housed and held in the second terminal housing tube portion 32 in the housing front tube portion 3a.

Japanese Patent No. 2752032

  However, since the power feeding connector 1 shown in Patent Document 1 is designed on the assumption that the operation of attaching / detaching the power feeding side connector 3 to / from the power receiving side connector 5 is performed in a facility equipped with a roof or the like, the power receiving side connector 5 is not provided with a mechanism or the like for discharging the intruded water when rainwater or the like enters.

  Therefore, in the environment without a roof or the like, the power supply side connector 3 is attached / detached to / from the power receiving side connector 5. When rainwater enters the outer cylindrical wall portion 12 of the power receiving side connector 5, the intruded rainwater receives power. When the power supply side connector 3 is accumulated in the side connector 5 and is connected to the power reception side connector 5, there is a possibility that inconvenience such as occurrence of current leakage occurs.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and foreign matter such as raindrops that have entered the inside does not accumulate inside, and the accumulation of the foreign matter may cause problems in connection with the power supply side connector. It is another object of the present invention to provide a power receiving connector that does not allow muddy water or the like to enter from the back of the connector.

The above-described object of the present invention is achieved by the following configuration.
(1) A power receiving side connector attached to a vehicle body of an electric vehicle so that a power feeding side connector connected to the power feeding device can be fitted and connected,
Formed into a bottomed cylindrical structure comprising an outer cylindrical wall portion in which the cylindrical housing front side cylindrical portion of the power supply side connector is fitted to the inner periphery, and a back wall portion closing one end side of the outer cylindrical wall portion. A housing body attached to the vehicle body with the other end side facing upward or obliquely upward;
A power terminal housing cylinder part that is integrally formed with the inner wall part of the outer cylinder wall part and that houses and holds a vehicle body side power terminal connected to a device side power terminal in the housing front cylinder part;
A signal terminal housing cylinder portion that is integrally formed with the inner wall portion of the outer cylinder wall portion and that accommodates and holds a vehicle body side signal terminal connected to a device side signal terminal in the housing front side cylinder portion;
On the inner wall of the outer cylindrical wall, on the inner wall, a main body drainage port that is formed to penetrate to a position that is the lowest end in a state of being attached to the vehicle body,
A water pipe that is fitted to the main body drain port and forms a drainage path bent at the main body drain port;
With
A power receiving side connector , wherein a backflow prevention valve is provided in the water pipe .

(2) The power receiving side connector according to (1) above, wherein a filter that restricts passage of foreign matters having a particle size of a predetermined size or more is provided in the water distribution pipe.

  According to the configuration of (1) above, when the connection operation of the power supply side connector with respect to the power receiving side connector is performed outdoors or the like, and foreign matter such as raindrops enters the inside of the outer cylinder wall, From the main body drain, it is quickly discharged to the outside through a water pipe connected to the main body drain.

  Accordingly, it is possible to provide a power receiving side connector in which foreign matter such as raindrops that have entered the inside does not accumulate inside the outer cylinder wall portion, and the accumulation of foreign matter does not hinder the connection with the power feeding side connector. .

  In addition, according to the configuration of (1) above, since the water distribution pipe forms a bent drainage path, gravel or muddy water splashed from the bottom of the vehicle body on the back side of the connector will enter the opening of the water distribution pipe. Even if it jumps in, it is difficult to reach the main body drain.

  Therefore, it is possible to prevent splashing water or the like from entering the power receiving side connector from the main body drain and contaminating the inside of the power receiving side connector.

Moreover, according to the structure of said (1) , since the water flow prevention pipe is provided in the water distribution pipe, it can prevent reliably that the water in a water distribution pipe flows backward to the main body drain outlet side. Therefore, it can prevent more reliably that foreign materials, such as water splashed from the vehicle body lower part, penetrate | invade into a main body drain outlet via a water pipe.

According to the configuration of (2) above , even if an external foreign matter jumps into the opening of the water distribution pipe due to wind pressure or the like when the vehicle travels, the foreign matter jumped into the water distribution pipe is collected by the filter, and the foreign matter is Intrusion into the drainage port can be prevented.

  According to the power receiving side connector according to the present invention, when the operation of connecting the power feeding side connector to the power receiving side connector is performed outdoors or the like, when foreign matter such as raindrops enters the inside of the outer cylinder wall, From the main body drain, it is quickly discharged to the outside through a water pipe connected to the main body drain.

  Accordingly, it is possible to provide a power receiving side connector in which foreign matter such as raindrops that have entered the inside does not accumulate inside the outer cylinder wall portion, and the accumulation of foreign matter does not hinder the connection with the power feeding side connector. .

  In addition, according to the power receiving side connector according to the present invention, since the water distribution pipe forms a bent drainage path, gravel and muddy water splashed from the lower side of the vehicle body on the back side of the connector can enter the opening of the water distribution pipe. Even if it jumps in, it is difficult to reach the main body drain.

  Therefore, it is possible to prevent splashing water or the like from entering the power receiving side connector from the main body drain and contaminating the inside of the power receiving side connector.

It is the perspective view seen from the back side of the 1st embodiment of the power receiving side connector concerning the present invention. It is a front view of the power receiving side connector shown in FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. FIG. 5 is an enlarged view around a main body drain port shown in FIG. 4. It is a perspective view of the water distribution pipe connected to the main body drain shown in FIG. It is a longitudinal cross-sectional view of the water pipe shown in FIG. It is an expansion perspective view which shows the state of the terminal housing cylinder part for power supplies and the terminal housing cylinder part for signals which protrude in the connector back surface from the back wall part of the power receiving side connector of 1st Embodiment. It is an enlarged front view which shows the position of the drain hole for signal terminals formed in the back wall part of the power receiving side connector of 1st Embodiment. It is a principal part enlarged view of FIG. It is an enlarged rear view which shows the position of the drain hole for signal terminals formed in the back wall part of the power receiving side connector of 1st Embodiment. It is a principal part enlarged view of FIG. It is explanatory drawing of the protective wall which prevents the flooding to the signal terminal drain provided in the power receiving side connector of 1st Embodiment. It is a longitudinal cross-sectional view of 2nd Embodiment of the water pipe equipped with the power receiving side connector which concerns on this invention. It is a longitudinal cross-sectional view of 3rd Embodiment of the water pipe equipped with the power receiving side connector which concerns on invention. It is a perspective view of the power receiving side connector and power feeding side connector of the conventional power feeding connector. It is a longitudinal cross-sectional view of the power receiving side connector shown in FIG.

  Hereinafter, a preferred embodiment of the power receiving connector 5 according to the present invention will be described in detail with reference to the drawings.

  1 to 4 show a first embodiment of a power receiving connector according to the present invention, and FIG. 1 is a perspective view of the first embodiment of the power receiving connector according to the present invention as seen from the back side, FIG. 1 is a front view of the power receiving side connector shown in FIG. 1, FIG. 3 is a rear view of the power receiving side connector shown in FIG. 1, FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG.

  The power receiving side connector 51 of the first embodiment corresponds to the power receiving side connector 5 of FIG. 16, and is attached to the body of the electric vehicle so that the power feeding side connector connected to the power feeding device can be fitted and connected.

  The power receiving connector 51 includes a housing main body 61, an opening / closing cap 71, a power terminal accommodating cylinder 81, a signal terminal accommodating cylinder 91, a main body drain 101, a water pipe 103, and a signal terminal drain. 111.

  The housing body 61 includes an outer cylindrical wall portion 62 in which the cylindrical housing front side cylindrical portion 3a of the power feeding side connector 3 shown in FIG. 16 is fitted to the inner periphery, and one end side (back side) of the outer cylindrical wall portion 62. It is formed in the bottomed cylindrical structure provided with the back wall part 63 which obstruct | occludes. Further, a flange portion 64 that is an attachment portion to the vehicle body is integrally formed on the outer periphery of the outer cylindrical wall portion 62.

  The housing body 61 is attached to the vehicle body with the opening 62a on the other end side of the outer cylindrical wall portion 62 facing upward or obliquely upward.

  The opening / closing cap 71 is a substantially circular lid that covers the opening 62a of the outer cylinder wall portion 62 so as to be opened and closed. As shown in FIG. 1, the opening / closing cap 71 is rotatably connected to the outer cylinder wall portion 62 at one side of the outer periphery by a hinge mechanism 73. An arrow R in FIG. 1 indicates a rotation direction of the opening / closing cap 71 by the hinge mechanism 73. Further, as shown in FIG. 2, a locking portion 74 is provided on the other side of the outer periphery of the opening / closing cap 71 that is at a position facing the hinge mechanism 73.

  The opening / closing cap 71 can open and close the opening 62 a by rotation by the hinge mechanism 73. When the opening 62a is closed, the opening / closing cap 71 is fixed in a state where the opening 62a is closed by engaging a cap locking piece 65 integrally formed on the outer periphery of the outer cylindrical wall portion 62 with the locking portion 74. Is done.

  The power terminal housing cylinder 81 is fixed to the inner wall 63 of the outer cylinder wall 62. In the case of the present embodiment, the power terminal housing cylinder 81 is provided at two places on the left and right sides of the center O of the back wall 63 as shown in FIG. Further, the power terminal housing cylinder 81 accommodates and holds the vehicle-side power terminal 83 as shown in FIGS. 3 and 8. The vehicle body side power supply terminal 83 is a terminal fitting connected to a device side power supply terminal (not shown) housed and held in the first terminal housing tube portion 31 in the housing front tube portion 3a shown in FIG.

  The signal terminal housing cylinder part 91 is fixed to the inner wall part 63 inside the outer cylinder wall part 62. In the case of this embodiment, as shown in FIG. 2, the signal terminal accommodating cylinder portion 91 is provided at two locations, upper and lower, across the center O of the back wall portion 63. Moreover, each signal terminal accommodating cylinder part 91 has four terminal holding cylinder parts 93 inside, as shown in FIG. As shown in FIG. 8, the base ends of the four terminal holding cylinder portions 93 protrude from the back surface of the back wall portion 63. As shown in FIG. 4, each of these terminal holding cylinders 93 accommodates and holds a vehicle body side signal terminal 95. The vehicle body side signal terminal 95 is a terminal fitting connected to a device side signal terminal (not shown) housed and held in the second terminal housing tube portion 32 in the housing front tube portion 3a shown in FIG. As shown in FIG. 4, a signal wire 96 connected to a power feeding portion for the vehicle-mounted battery is connected to the base end of the vehicle body side signal terminal 95.

  As shown in FIGS. 2 and 4, the main body drain port 101 is formed through the inner wall 63 of the outer cylinder wall 62 at a position that is the lowest end when attached to the vehicle body. In the case of the present embodiment, a water distribution pipe (grommet) 103 is connected to the main body drain port 101 as shown in FIG.

  The water distribution pipe 103 extends from the back part of the back wall part 63 over a predetermined length. The water distribution pipe 103 is a member formed by injection molding of an elastic material such as silicon or ethylene propylene rubber. As shown in FIGS. 5 to 7, the water distribution pipe 103 includes an engaging portion 104 that is inserted into the main body drain port 101 formed in the back wall portion 63 in an elastically deformed state, and a drainage path that is connected to the main body drain port 101. And a tube main body 105 that forms a tube.

  As shown in FIGS. 5 and 6, the engaging portion 104 has a structure in which the top sides of the substantially triangular side walls 104a are connected by a connecting wall 104b, and the rear end surface of the connecting wall 104b is connected as shown in FIG. By being engaged with the inner peripheral edge of the main body drain port 101, the main body drain port 101 is fixed.

  As shown in FIGS. 6 and 7, the tube main body 105 has a rectangular tube shape, and a bent portion 105 a is formed in the middle. Equipped with the bent portion 105a, even if the water splashed below the vehicle body jumps into the end opening 103b of the water distribution pipe 103, it is difficult to reach the main body drain port 101. Intrusion into the housing main body 61 from 101 can be prevented.

  The signal terminal drain port 111 is an opening for draining water that has entered the signal terminal accommodating cylinder 91 to the outside. Further, as shown in FIG. 8 to FIG. 12, the signal terminal drain port 111 is provided at two locations adjacent to the inner peripheral edge of the signal terminal accommodating cylinder portion 91 for each signal terminal accommodating cylinder portion 91. It is provided through the portion 63.

  Further, in the present embodiment, as shown in FIG. 13, a protective wall 113 is provided to prevent the signal terminal drain 111 from being wetted from the back of the connector which is outside the back wall 63.

  In the power receiving side connector 51 of the first embodiment described above, the connection operation of the power feeding side connector to the power receiving side connector 51 is performed outdoors, and foreign matters such as raindrops enter the inside of the outer cylindrical wall portion 62 from the opening 62a. In this case, the invading foreign matter is quickly discharged from the main body drain port 101 to the outside through the water distribution pipe 103 connected to the main body drain port 101.

  Accordingly, foreign matters such as raindrops that have entered the inside do not accumulate inside the outer cylindrical wall portion 62, and the accumulation of foreign matter does not hinder the connection with the power supply side connector.

  Moreover, in the power receiving side connector 51 of 1st Embodiment demonstrated above, since the water distribution pipe 103 forms the bent drainage path, gravel, muddy water, etc. which jumped up from the vehicle body lower side used as the back side of a connector are Even when jumping into the opening of the water distribution pipe 103, it is difficult to reach the main body drain port 101.

  Therefore, it is possible to prevent splashing water or the like from entering the power receiving side connector from the main body drain port 101 and fouling the inside of the power receiving side connector.

  Moreover, in the power receiving connector 51 of the first embodiment described above, the water that has entered the signal terminal housing cylinder 91 can be quickly discharged from the signal terminal drain 111 to the outside.

  That is, the intruding water does not collect in the signal terminal accommodating cylinder portion 91, and when the power feeding side connector 3 is connected to the power receiving side connector 51, for example, inconvenience such as occurrence of current leakage is reliably prevented. be able to.

  Although not shown in the above embodiment, the power terminal housing cylinder 81 is also provided with a power terminal drain port for discharging water that has entered the power terminal housing cylinder 81. Therefore, the water that has entered the power terminal housing cylinder 81 can be quickly discharged to the outside from the power terminal drain port. Accordingly, the water that has entered does not collect in the power terminal housing cylinder 81, and when the power feeding connector 3 is connected to the power receiving connector 51, it is possible to reliably prevent inconveniences such as current leakage. be able to.

  Further, in the power receiving side connector 51 of the first embodiment described above, the protective wall 113 prevents water or the like splashed from below the vehicle body from entering the signal terminal drain port 111 when the vehicle travels. Therefore, it is possible to prevent the inside of the signal terminal housing cylinder portion 91 from being soiled by the splashed water or the like.

  Although not shown in the above embodiment, the power terminal drain port provided for draining the power terminal housing cylinder 81 is also connected to the power terminal drain port from the back of the connector outside the back wall 63. A protective wall is provided to prevent water exposure.

  Therefore, the protective wall prevents water or the like splashed from below the vehicle body from entering the power terminal drain outlet when the vehicle is running. Therefore, it is possible to prevent the inside of the power supply terminal accommodating cylinder portion 81 from being soiled by splashing water or the like.

  In addition, the power receiving side connector of the present invention is not limited to the above-described embodiment, and appropriate modifications and improvements can be made. For example, the water distribution pipe connected to the main body drain port 101 may have a structure shown in FIG.

  The water distribution pipe 103A shown in FIG. 14 has a configuration in which a backflow prevention valve 107 is provided in the pipe main body 105 of the water distribution pipe 103 of the first embodiment shown in FIG. Except for the addition of the valve 107, it is the same structure as the water distribution pipe 103 of 1st Embodiment.

  The valve 107 is integrally formed with the pipe body 105 at the time of injection molding so as to gradually narrow the cross section of the flow path toward the end opening 103b.

  In the case of the power receiving side connector 51 in which the water distribution pipe 103A shown in FIG. 14 is connected to the main body drain port 101, the water in the water distribution pipe 103A can be reliably prevented from flowing backward to the main body drain port 101 side. Therefore, it is possible to more reliably prevent foreign matters such as water splashed from below the vehicle body from entering the main body drain port 101 via the water distribution pipe 103A.

  The water distribution pipe 103B shown in FIG. 15 has a configuration in which a filter 108 is provided in the pipe main body 105 of the water distribution pipe 103 of the first embodiment shown in FIG. Except for the addition of the filter 108, it has the same structure as the water distribution pipe 103 of the first embodiment.

  The filter 108 is a dredging material that restricts the passage of foreign matters having a particle diameter of a predetermined size or larger, and allows the passage of water.

  In the case of the power receiving side connector 51 in which the water distribution pipe 103b of FIG. 15 is connected to the main body drain port 101, even if foreign matter such as external gravel or mud jumps into the opening of the water distribution pipe due to wind pressure when the vehicle travels, The foreign matter that has jumped into the water distribution pipe can be collected by the filter, and the foreign matter can be prevented from entering the main body drain.

51 Power-receiving-side connector 61 Housing body 62 Outer cylinder wall part 63 Back wall part 81 Power supply terminal accommodation cylinder part 91 Signal terminal accommodation cylinder part 101 Main body drain 103 103 Water distribution pipe 104 Engagement part 105 Pipe body 107 Valve 108 Filter

Claims (2)

The power receiving side connector connected to the body of the electric vehicle so that the power feeding side connector connected to the power feeding device can be fitted and connected,
Formed into a bottomed cylindrical structure comprising an outer cylindrical wall portion in which the cylindrical housing front side cylindrical portion of the power supply side connector is fitted to the inner periphery, and a back wall portion closing one end side of the outer cylindrical wall portion. A housing body attached to the vehicle body with the other end side facing upward or obliquely upward;
A power terminal housing cylinder part that is integrally formed with the inner wall part of the outer cylinder wall part and that houses and holds a vehicle body side power terminal connected to a device side power terminal in the housing front cylinder part;
A signal terminal housing cylinder portion that is integrally formed with the inner wall portion of the outer cylinder wall portion and that accommodates and holds a vehicle body side signal terminal connected to a device side signal terminal in the housing front side cylinder portion;
On the inner wall of the outer cylindrical wall, on the inner wall, a main body drainage port that is formed to penetrate to a position that is the lowest end in a state of being attached to the vehicle body,
A water pipe that is fitted to the main body drain port and forms a drainage path bent at the main body drain port;
With
A power receiving side connector , wherein a backflow prevention valve is provided in the water pipe . The power receiving side connector according to claim 1, further comprising a filter that restricts the passage of a foreign substance having a predetermined particle diameter or more in the water pipe.