Connector holder and connector housing device

Abstract

The present invention provides a connector holder that allows for alignment of the central axis and rotation angle without obstructing the insertion of the power supply connector. [Solution] A connector holder 100 for housing a power supply connector for an electric vehicle, comprising: a front end portion 101 having an annular plane with an insertion opening for the power supply connector formed therein; a cylindrical intermediate portion 102 extending rearward from the front end portion 101 and forming a storage space for the power supply connector; and a rear end portion 103 closing the rear end of the intermediate portion 102, wherein the inner circumferential surface of the intermediate portion 102 includes a first inner circumferential surface 110 on the side of the rear end portion 103, and a second inner circumferential surface 120 and a third inner circumferential surface 130 on the side of the front end portion 101, wherein the distance from the central axis Z to the second inner circumferential surface 120 decreases as it moves rearward from the insertion opening, and the third inner circumferential surface 130 forms a guide recess for guiding an alignment portion formed at the tip of the power supply connector, wherein the width of the guide recess narrows as it moves rearward from the insertion opening.

Description

Technical Field

[0001] The present invention relates to a connector holder and a connector storage device.

Background Art

[0002] As a conventional connector holder for housing a power supply connector for an electric vehicle (for example, an electric vehicle or a plug-in hybrid vehicle), for example, the one described in Patent Document 1 is known. The charging connector holder 10 described in Patent Document 1 houses a charging connector in a terminal holder portion 13, and includes a first guiding portion 13F provided at an entrance portion (opening) 13E of the terminal holder portion 13, and a guiding groove 13G provided in the first guiding portion 13F.

[0003] The first guiding portion 13F is a conical surface portion that widens as it moves forward from the entrance portion 13E. The guiding groove 13G is a tapered groove that is inclined along the conical surface of the first guiding portion 13F. Further, the first guiding portion 13F is for guiding the fitting width 3 of the charging connector into the storage space of the terminal holder portion 13, and the guiding groove 13G is for guiding a fitting width guide 4 provided at the lower portion of the fitting width 3 to a groove portion 13C continuous with the guiding groove 13G.

[0004] In the charging connector holder 10, when the central axis (cylindrical axis) of the fitting width 3 and the central axis (cylindrical axis) L1 of the charging connector holder 10 are misaligned during connector insertion, the first guiding portion 13F enables alignment of the central axis during the process of connector insertion. However, in the charging connector holder 10, the inclination angle of the guiding groove 13G and the inclination angle of the groove portion 13C are different. Specifically, the inclination angle of the guiding groove 13G is larger than the inclination angle of the groove portion 13C. When inserting the fitting width 3 along the conical surface of the guiding groove 13G during connector insertion, the guiding groove 13G contributes to alignment of the rotation angle. However, when inserting along a trajectory other than that (for example, when inserting the fitting width 3 straight along the central axis L1), since the fitting width guide 4 moves above the guiding groove 13G, the guiding groove 13G does not contribute to alignment of the rotation angle.

[0005] Furthermore, the charging connector holder 10 has a first guide portion 13F and a guide groove 13G that protrude forward of the front end (virtual surface So) of the entrance portion 13E. Therefore, when inserting the connector, there is a risk that the mating opening 3 may come into strong contact with the front end portions of the first guide portion 13F and the guide groove 13G.

[0006] As described above, in the charging connector holder 10, the first guide portion 13F and the guide groove 13G not only do not contribute to aligning the rotation angle when inserting the connector, but rather become factors that hinder connector insertion.

[0007] Furthermore, in the charging connector holder 10, there is a portion of the groove 13C located behind the virtual plane So in which the width changes, and this portion may contribute to the alignment of the rotation angle without hindering connector insertion. However, the front end of the above portion is located behind the middle of the first guide portion 13F, and the rear end of the above portion is in the same position as the rear end of the first guide portion 13F. In other words, in the charging connector holder 10, the portion that aligns the rotation angle (the portion of the groove 13C in which the width changes) is much shorter than the portion that aligns the central axis (the first guide portion 13F). This short distance makes it impossible to adequately align the rotation angle, and the mating opening guide 4 may come into strong contact with the side wall or edge of the groove 13C, placing a heavy load on the side wall or edge of the groove 13C and potentially damaging the charging connector or the charging connector holder 10. Therefore, it is difficult to say that the portion of the groove 13C in which the width changes contributes sufficiently to the alignment of the rotation angle of the mating opening 3. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2015-133175 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The present invention has been made in view of the above circumstances, and its objective is to provide a connector holder and connector housing device that enable alignment of the central axis and rotation angle without hindering the insertion of the power supply connector. [Means for solving the problem]

[0010] To solve the above problems, the connector holder according to the present invention is A connector holder for housing a power supply connector for electric vehicles, The front end has an annular plane in which the insertion opening for the power supply connector is formed, A cylindrical intermediate portion extending rearward from the front end and forming a storage space for the power supply connector, It comprises a rear end that closes the rear end of the intermediate portion, The inner circumferential surface of the intermediate portion is The first inner circumferential surface on the side of the rear end, Including the second inner surface and the third inner surface on the front end side, The distance from the central axis of the intermediate portion to the second inner circumferential surface decreases as it moves away from the insertion opening towards the rear. The third inner surface has a guide recess for guiding the alignment portion formed at the tip of the power supply connector. The guide recess is characterized by becoming narrower in width as it moves away from the insertion opening.

[0011] With this configuration, there are no protrusions for aligning the central axis or rotation angle in front of the front end of the connector holder, which has an annular plane, allowing the power supply connector to be smoothly inserted into the connector holder. Furthermore, the second inner surface of the intermediate section extending rearward from the front end allows for alignment of the central axis of the power supply connector, and the third inner surface of the intermediate section, i.e., the guide recess, allows for alignment of the rotation angle of the power supply connector. Here, power supply refers to the exchange of power with the electric vehicle, including charging, discharging, and discharging of the electric vehicle.

[0012] In the connector holder, The rear end of the third inner peripheral surface can be configured to be located behind the rear end of the second inner peripheral surface.

[0013] In the connector holder, The third inner peripheral surface can be configured such that the depth of the guiding recess decreases as it approaches the insertion opening.

[0014] In the connector holder, The third inner peripheral surface can be configured such that the distance to the central axis at the front end is equal to the distance to the central axis at the front end of the second inner peripheral surface.

[0015] In the connector holder, The inner peripheral surface of the intermediate portion, Further includes a fourth inner peripheral surface on the side of the front end portion, A abutting portion that contacts the front end of the main body portion provided behind the tip portion of the power supply connector can be formed at the rear end of the fourth inner peripheral surface.

[0016] In the connector holder, An opening into which the latch portion provided at the tip portion of the power supply connector enters can be formed in the region of the first inner peripheral surface of the intermediate portion.

[0017] In order to solve the above problems, a connector housing device according to the present invention includes A connector holder according to the present invention, A housing to which the connector holder is attached, A power transmission cable drawn out from the housing, And a power supply connector provided at the tip of the cable, and is characterized by comprising these.

Effects of the Invention

[0018] According to the present invention, it is possible to provide a connector holder and a connector housing device capable of aligning the central axis and the rotation angle without inhibiting the insertion of the power supply connector.

Brief Description of the Drawings

[0019] [Figure 1] This is a view showing a connector storage device according to the present invention. [Figure 2] (A) A side view showing a power supply connector. (B) A view of the tip of the power supply connector as seen obliquely from above. [Figure 3] This is a front view of a connector holder according to the present invention. [Figure 4] (A) A cross-sectional view taken along line A-A of FIG. 3, which is an explanatory view of the first inner peripheral surface. (B) An enlarged cross-sectional view of the periphery of the latch receiving portion. [Figure 5] (A) A cross-sectional view taken along line B-B of FIG. 3, which is an explanatory view of the second inner peripheral surface. (B) A cross-sectional view taken along line C-C of FIG. 3, which is an explanatory view of the second inner peripheral surface. [Figure 6] (A) A front view of a connector holder according to the present invention, which is an explanatory view of the third inner peripheral surface. (B) A cross-sectional view taken along line B-B of FIG. 3, which is an explanatory view of the third inner peripheral surface. [Figure 7] (A) A front view of a connector holder according to the present invention, which is an explanatory view of the fourth inner peripheral surface. (B) A cross-sectional view taken along line B-B of FIG. 3, which is an explanatory view of the fourth inner peripheral surface. [Figure 8] This is a perspective view of a connector holder according to the present invention, which is an explanatory view of the fourth inner peripheral surface.

Embodiments for Carrying Out the Invention

[0020] Hereinafter, embodiments of a connector holder and a connector storage device according to the present invention will be described with reference to the accompanying drawings.

[0021] FIG. 1 shows a system including a connector storage device 1 according to an embodiment of the present invention. The system is a V2H (Vehicle to Home) system that supplies the power of a battery of an electric vehicle (for example, an electric car or a plug-in hybrid car) to a load in a house, and includes a connector storage device 1 corresponding to an operation unit of the V2H system and a power conversion device 2 corresponding to a main body unit of the V2H system.

[0022] The connector housing device 1 comprises a connector holder 100 according to one embodiment of the present invention, a housing 200 to which the connector holder 100 is attached and which houses electrical circuit components, a power transmission cable 300, and a power supply connector 400 connected to the charging port of an electric vehicle. The connector housing device 1 performs a charging operation to supply DC power supplied from the power converter 2 to the electric vehicle's battery, and a discharging operation to supply DC power supplied from the electric vehicle's battery to the power converter 2. In Figure 1, the connector housing device 1 is installed on the upper end of the pole P, but it may be installed on the wall of a house or the like without using the pole P, or it may be provided on the power converter 2.

[0023] The power converter 2 includes electrical circuit components EC housed in a casing. The electrical circuit components EC include, for example, an AC / DC conversion circuit including a switching element, a DC / DC conversion circuit including a switching element, and a control circuit that controls the AC / DC conversion circuit and the DC / DC conversion circuit. The power converter 2 is connected to a first line L1, a second line L2, and a third line L3.

[0024] The first line L1 includes a DC power line and a control line for V2H, and connects the electrical circuit components EC of the power converter 2 to the electrical circuit components of the connector housing 1. The DC power line of the first line L1 transmits DC power between the power converter 2 and the connector housing 1. The control line of the first line L1 transmits control signals and various information necessary for control between the power converter 2 and the connector housing 1.

[0025] The second line L2 includes multiple control lines other than those for V2H and connects the electrical circuit components EC of the power converter 2 to a power supply unit (e.g., a power conditioner unit and its accessories) not shown. The power conditioner unit is, for example, a power conditioner unit for a solar power generation system and / or a power conditioner unit for a stationary battery storage system. The accessories are, for example, a connector housing unit 1 and communication devices such as an indoor remote control configured to communicate with the power conditioner unit and a router for a wireless LAN. The second line L2 transmits control signals and various information necessary for control between the power converter 2 and the power supply unit.

[0026] The third line L3 includes an AC power line and connects the electrical circuit component EC of the power converter 2 to the power supply unit. The third line L3 transmits AC power between the power converter 2 and the power supply unit. The AC power supplied from the power converter 2 to the power supply unit is supplied to loads in the house (e.g., electrical appliances) connected to the power supply unit. The AC power supplied from the power supply unit to the power converter 2 is converted to DC power by the electrical circuit component EC and supplied to the electric vehicle's battery via the connector housing device 1.

[0027] The system in Figure 1 is a separate-type V2H system in which the connector housing device 1 and the power converter 2 are separated. For example, the power converter 2 can be installed in a large space, while the connector housing device 1 can be installed in a relatively small space near the electric vehicle. However, the connector housing device 1 is not limited to those that constitute a separate-type V2H system; for example, the electrical circuit components EC of the power converter 2 may be housed in the housing 200 to constitute an integrated V2H system.

[0028] Figure 2 shows the power supply connector 400. The power supply connector 400 is a power supply connector for rapid charging compliant with the CHAdeMO standard, and comprises a tip portion 410 and a main body portion 420 provided behind the tip portion 410. The tip portion 410 is the part that connects to the charging port of the electric vehicle, and comprises a cylindrical outer surface 411, two alignment portions 412 protruding from the outer surface 411, and a latch portion 413. The main body portion 420 is the part that the user holds in their hand, and comprises a resin outer casing portion 421 and a lever portion 422 (release button) for operating the latch portion 413. The front end 423 of the outer casing portion 421 forms a surface perpendicular to the outer surface 411.

[0029] The latch portion 413 is connected to the lever portion 422 via a connecting portion. The latch portion 413 switches between a first state in which it protrudes from the outer peripheral surface 411 and functions as a retainer for the electric vehicle's charging port, and a second state in which it does not protrude from the outer peripheral surface 411. In this embodiment, when the lever portion 422 is not operated, the latch portion 413 is in the first state, and when the lever portion 422 is operated (in this embodiment, the lever portion 422 is pressed down), the latch portion 413 is in the second state.

[0030] Figure 3 shows a front view of the connector holder 100. The connector holder 100 comprises a holder portion consisting of a front end portion 101, an intermediate portion 102, and a rear end portion 103. The holder portion is, for example, a resin molded product.

[0031] The front end portion 101 has an annular plane that forms an insertion opening for the power supply connector 400. The front end portion 101 is provided with a plurality of through holes 104 (screw holes in this embodiment) for screwing the front end portion 101 to the front of the housing 200. The front end portion 101 also has an annular groove portion, and a waterproof means 105 (annular packing in this embodiment) is provided in the groove portion to prevent moisture from entering the inside of the housing 200.

[0032] The intermediate section 102 is a cylindrical portion that extends rearward from the front end 101 and forms a housing space for the power supply connector 400. The inner circumferential surface of the intermediate section includes a first inner circumferential surface 110 on the side of the rear end 103, a second inner circumferential surface 120, a third inner circumferential surface 130, and a fourth inner circumferential surface 140 on the side of the front end 101, and a fifth inner circumferential surface 150 that extends from the rear end 103 to the front end 101. These inner circumferential surfaces will be described later.

[0033] The rear end portion 103 is the part that closes the rear end of the intermediate portion 102. The front surface of the rear end portion 103 has a shape that corresponds to the front surface (tip surface) of the tip portion 410 of the power supply connector 400. Specifically, the front surface of the rear end portion 103 includes a circular area that is approximately the same size as the circular portion on the front of the power supply connector 400, and two convex areas that are approximately the same size as the front portions of the two alignment portions 412 of the power supply connector 400.

[0034] Figure 4(A) shows a cross-sectional view along line AA in Figure 3. In this figure, the dotted area represents the region of the first inner surface 110.

[0035] The first inner circumferential surface 110 includes the first A inner circumferential surface 111, the first B inner circumferential surface 112, and the first C inner circumferential surface 113. The first A inner circumferential surface 111 is a surface extending forward from the lower circular arc of the convex region of the rear end portion 103 (excluding the region of the fifth inner circumferential surface 150). The first B inner circumferential surface 112 is a surface extending forward from the outer circumference of the convex region of the rear end portion 103. The first C inner circumferential surface 113 is a surface extending forward from the upper circular arc of the convex region of the rear end portion 103. The front end of the first C inner circumferential surface 113 is located forward of the front end of the first A inner circumferential surface 111, and the front end of the first A inner circumferential surface 111 is located forward of the front end of the first B inner circumferential surface 112.

[0036] The distance from the inner surface 1A 111 to the central axis (cylindrical axis) Z of the intermediate section 102 is constant regardless of its position in the front-rear direction. The distance from the surface extending forward from the top of the convex region of the rear end 103 of the inner surface 1B 112 (the surface facing the upper surface of the alignment section 412) to the central axis Z, and the distance from the inner surface 1C 113 to the central axis Z are also constant regardless of their position in the front-rear direction. The central axis Z of the intermediate section 102 is the axis that extends in the front-rear direction from the center of the front surface of the rear end 103 and is perpendicular to the annular plane of the insertion opening. The distance to the central axis Z is the distance on a plane perpendicular to the central axis Z.

[0037] As shown in Figure 4(B), an opening 106 is formed in the region of the first inner circumferential surface 113 of the intermediate portion 102, sized to accommodate the latch portion 413 of the power supply connector 400. A metal latch retaining portion 107 is attached to the outer circumferential surface of the intermediate portion 102 so as to cover the opening 106. The front lower end of the latch retaining portion 107 extends into the opening 106. The latch portion 413 of the power supply connector 400 housed in the connector holder 100 protrudes into the opening 106. If a user attempts to pull the power supply connector 400 out of the connector holder 100 without operating the lever portion 422, the latch portion 413 contacts the front lower end of the latch retaining portion 107. In this case, the latch portion 413 functions as a retainer to prevent it from coming out of the connector holder 100. The power supply connector 400 housed in the connector holder 100 is held by the latch retaining portion 107 and the first inner circumferential surface 110.

[0038] Figure 5(A) shows a cross-sectional view along line BB in Figure 3, and Figure 5(B) shows a cross-sectional view along line CC in Figure 3. In these figures, the dotted area represents the region of the second inner surface 120.

[0039] The intermediate portion 102 has a pair of left and right second inner circumferential surfaces 120, and the left and right second inner circumferential surfaces 120 are symmetrical in shape. The second inner circumferential surfaces 120 are surfaces that extend forward from the front end of the first inner circumferential surface 111 via a curved surface (for example, an R surface).

[0040] The distance from the second inner surface 120 to the central axis Z decreases as it moves away from the insertion opening. The second inner surface 120 is the surface used for aligning the central axis. If the central axis of the tip 410 of the power supply connector 400 and the central axis Z of the connector holder 100 are misaligned when the connector is inserted, the second inner surface 120 aligns the central axes.

[0041] Figure 6(A) shows a front view of the connector holder 100, and Figure 6(B) shows a cross-sectional view along line BB in Figure 3. In the same figure, the area marked with a dot is the area of ​​the third inner surface 130.

[0042] The intermediate portion 102 has a pair of left and right third inner surfaces 130, and the left and right third inner surfaces 130 are symmetrical in shape. The third inner surface 130 is a surface that extends forward from the first B inner surface 112 and includes the third A inner surface 131, the third B inner surface 132, and the third C inner surface 133.

[0043] The third inner surface 131A, the third inner surface 132B, and the third inner surface 133C form guide recesses for guiding the alignment portion 412 of the power supply connector 400 into the area of ​​the first inner surface 112B. The third inner surface 131A is one side surface of the guide recess, and the third inner surface 132B is the other side surface of the guide recess. The third inner surface 133C is the bottom surface of the guide recess and is curved.

[0044] The width of the guide recess (the distance between the third A inner surface 131 and the third B inner surface 132) of the third inner surface 130 narrows as it moves away from the insertion opening. The third inner surface 130 is the surface that aligns the rotation angle. When inserting the connector, if the rotation angle of the tip portion 410 of the power supply connector 400 is misaligned, that is, if the outer surface of the alignment portion 412 and the first B inner surface 112 are misaligned, the third inner surface 130 (guide recess) aligns the rotation angle.

[0045] The front end of the third inner surface 130 (guiding recess) is at the same position as the front end of the second inner surface 120, but the rear end of the third inner surface 130 (guiding recess) is located behind the rear end of the second inner surface 120. This allows the alignment of the central axis and the alignment of the rotation angle to start at the same time, and moreover, the alignment of the rotation angle can be continued even after the alignment of the central axis is completed. In this way, the distance for alignment of the rotation angle can be made longer than the distance for alignment of the central axis, so that the alignment of the rotation angle can be made more reliable. In addition, since the misalignment of the rotation angle is corrected little by little over a long distance, the instantaneous maximum load on the guiding recess can be reduced.

[0046] The distance from the third inner surface 133, which is the bottom surface of the guide recess, to the central axis Z increases as it approaches the insertion opening. The distance from the front end of the third inner surface 133 to the central axis Z is the same as the distance from the front end of the second inner surface 120 to the central axis Z. This prevents the alignment portion 412 from contacting the edges of the second inner surface 120 and the third inner surface 130 at the insertion opening, thereby preventing insertion from being hindered. In addition, the depth of the guide recess decreases from around the rear end of the second inner surface 120 as it approaches the insertion opening, and becomes zero at the front end of the third inner surface 133. In other words, the heights of the third inner surface 131 and the third inner surface 132 gradually decrease from around the rear end of the second inner surface 120, and become zero at the front end of the third inner surface 133. This prevents the alignment portion 412 from making strong contact with the inner surface 131 of the third A or the inner surface 132 of the third B near the insertion opening when inserting the connector.

[0047] Figure 7(A) shows a front view of the connector holder 100, and Figure 7(B) shows a cross-sectional view along line BB in Figure 3. Figure 8 shows a perspective view of the connector holder 100. In this figure, the area marked with a dot is the area of ​​the fourth inner surface 140.

[0048] The fourth inner surface 140 includes the fourth A inner surface 141 and the fourth B inner surface 142. The fourth A inner surface 141 is located at the rear end of the fourth inner surface 140 and is a plane perpendicular to the central axis Z. The fourth B inner surface 142 is a plane substantially perpendicular to the fourth A inner surface 141 and extends forward from the fourth A inner surface 141. The front end of the fourth B inner surface 142 is the front end of the fourth inner surface 140.

[0049] The inner surface 141 of the fourth A forms the "butt portion" of the present invention and contacts the front end 423 of the outer casing 421 of the power supply connector 400 housed in the connector holder 100. The user can insert the power supply connector 400 into the storage space until the front end 423 of the power supply connector 400 contacts the inner surface 141 of the fourth A, thereby allowing the user to sense that the insertion of the power supply connector 400 is complete.

[0050] The fourth B inner surface 142 includes the left and right sides and the upper curved surface between them. The distance from the upper curved surface of the fourth B inner surface 142 to the central axis Z increases as it approaches the insertion opening. The distance from the front end of the fourth B inner surface 142 to the central axis Z is the same as the distance from the front end of the second inner surface 120 and the front end of the third C inner surface 133 to the central axis Z. Also, the height of the left and right sides of the fourth B inner surface 142 decreases as it approaches the insertion opening.

[0051] The fifth inner surface 150 forms a drainage groove for draining moisture that has entered the storage space. As shown in Figure 5(B), the fifth inner surface 150 is formed from the front surface of the rear end 103 to the insertion opening of the front end 101.

[0052] In the connector holder 100 according to this embodiment, there are no protrusions in front of the front end portion 101 for aligning the central axis or rotation angle, allowing the power supply connector 400 to be smoothly inserted into the connector holder 100. Furthermore, the second inner circumferential surface 120 of the intermediate portion 102 extending rearward from the front end portion 101 allows for alignment of the central axis of the power supply connector 400, and the third inner circumferential surface 130 (guiding recess) of the intermediate portion 102 allows for alignment of the rotation angle of the power supply connector 400. As a result, the connector holder 100 according to this embodiment can improve the ease of insertion of the power supply connector 400.

[0053] The connector holder 100 according to this embodiment holds the tip portion 410 of the power supply connector 400 with the latch holding portion 107 and the first inner circumferential surface 110. On the other hand, since the connector holder 100 according to this embodiment does not hold the main body portion 420 of the power supply connector 400, the power supply connector 400 can be stored and held in the storage space even if the shape of the main body portion 420 is somewhat different (independent of the shape of the main body portion 420).

[0054] Although embodiments of the connector holder and connector housing device according to the present invention have been described above, the present invention is not limited to the above embodiments.

[0055] The connector holder according to the present invention is a connector holder for housing a power supply connector for an electric vehicle, comprising: a front end having an annular plane with an insertion opening for the power supply connector formed therein; a cylindrical intermediate portion extending rearward from the front end and forming a storage space for the power supply connector; and a rear end closing the rear end of the intermediate portion, wherein the inner circumferential surface of the intermediate portion includes a first inner circumferential surface on the rear end side and a second and third inner circumferential surfaces on the front end side, wherein the distance from the central axis of the intermediate portion decreases as the second inner circumferential surface moves away from the insertion opening to the rear, and the third inner circumferential surface forms a guide recess for guiding an alignment portion formed at the tip of the power supply connector, and the width of the guide recess narrows as it moves away from the insertion opening to the rear, the configuration can be modified as appropriate.

[0056] Furthermore, the connector housing device according to the present invention can be modified as appropriate, as long as it comprises a connector holder according to the present invention, a housing to which the connector holder is attached, a power transmission cable drawn out from the housing, and a power supply connector provided at the end of the cable.

[0057] For example, although the connector housing device 1 in the above embodiment constitutes a V2H system, it may be replaced with a charging device that only charges the electric vehicle, or a V2L system that only discharges from the electric vehicle.

[0058] The power supply connector 400 in the above embodiment is a power supply connector compliant with the CHAdeMO standard, but it may also be a power supply connector compliant with a standard other than the CHAdeMO standard.

[0059] The connector holder 100 in the above embodiment is provided with two third inner circumferential surfaces 130 (guiding recesses) corresponding to the two alignment portions 412 of the power supply connector 400. However, if the number of alignment portions 412 is other than two, it is preferable to make the number and position of the third inner circumferential surfaces 130 (guiding recesses) correspond to the number and position of the alignment portions 412. [Explanation of Symbols]

[0060] 1. Connector housing device 2 Power converter 100 Connector Holder 101 Front end 102 Middle section 103 Rear end 104 Through hole 105 Waterproofing means 106 Opening 107 Latch retaining part 110 1st inner surface 120 2nd inner surface 130 3rd inner peripheral surface 140 4th inner peripheral surface 150 5th inner surface 200 cabinets 300 Cable 400 Power supply connector 410 Tip 411 Outer surface 412 Alignment section 413 Latch section 420 Main body 421 Exterior part 422 Lever section 423 Front end

Claims

1. A connector holder for housing a power supply connector for electric vehicles, The front end has an annular plane in which the insertion opening for the power supply connector is formed, A cylindrical intermediate portion extending rearward from the front end and forming a storage space for the power supply connector, It comprises a rear end that closes the rear end of the intermediate portion, The inner circumferential surface of the intermediate portion is The first inner circumferential surface on the side of the rear end, Including the second inner surface and the third inner surface on the front end side, The distance from the central axis of the intermediate portion to the second inner circumferential surface decreases as it moves away from the insertion opening towards the rear. The third inner surface has a guide recess for guiding the alignment portion formed at the tip of the power supply connector. The width of the guide recess decreases as it moves away from the insertion opening. A connector holder characterized by the following features.

2. The rear end of the third inner surface is located further back than the rear end of the second inner surface. The connector holder according to feature 1.

3. The third inner surface has a decreasing depth of the guide recess as it approaches the insertion opening. The connector holder according to feature 1.

4. The distance from the front end of the third inner surface to the central axis is equal to the distance from the front end of the second inner surface to the central axis. The connector holder according to feature 1.

5. The inner circumferential surface of the intermediate portion is The fourth inner circumferential surface on the front end side further includes, The rear end of the fourth inner surface is formed with a stopper portion that contacts the front end of the main body portion located behind the tip of the power supply connector. The connector holder according to feature 1.

6. An opening is formed in the region of the first inner circumferential surface of the intermediate portion, into which the latch portion provided at the tip of the power supply connector is inserted. The connector holder according to feature 1.

7. A connector holder according to any one of claims 1 to 6, The housing to which the connector holder is attached, A power transmission cable pulled out from the aforementioned enclosure, The cable comprises the power supply connector provided at the end of the cable. A connector housing device characterized by the following features.

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