JP2016207410A - Connector structure of high voltage cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector structure of a high voltage cable, in which a male connector and a female connector are prevented from being erroneously combined and combining workability between the male connector and the female connector is improved.SOLUTION: A male connector (13) is equipped with circular columnar projections (21, 22) extending in left and right directions at the front side end on left and right side surfaces, respectively. A female connector (14) is equipped with recesses (35, 36) at the front side end on the left and right side surfaces, respectively. In a state where the male connector (13) and a female connector (14) are fitted to each other, the projections (21, 22) of the male connector (13) are fitted into the recesses (35, 36) of the female connector (14).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a connector structure for a high voltage cable, and more particularly to a connector structure for a high voltage cable including a plurality of plus side cables and minus side cables such as a plurality of high voltage battery packs.

In an electric vehicle such as a hybrid vehicle or an electric vehicle, a plurality of high voltage battery packs are mounted, for example, so as to be arranged in the vertical direction, and a junction box (high voltage connection portion) is provided on the plurality of high voltage battery packs. Some are installed. The plurality of high-voltage battery packs and junction boxes are each provided with a plus terminal (plus pole) and a minus terminal (minus pole). In order to electrically connect the plurality of high voltage battery packs and the junction box, in the plurality of high voltage battery packs and the junction box, two systems of high voltage cables, that is, a plus side cable and a minus side cable are provided. Necessary.
The junction box and the upper high-voltage battery pack are connected to the positive cable of the junction box and the positive cable of the upper high-voltage battery pack. Further, the negative cable of the junction box and the upper high-voltage battery pack are connected. Electrical connection is established by connecting the negative cable of the pack. The upper high-voltage battery pack and the lower high-voltage battery pack are connected to the upper cable of the upper high-voltage battery pack and the positive cable of the lower high-voltage battery pack. Electrical connection is established by connecting the negative cable of the voltage battery pack and the negative cable of the lower high voltage battery pack.
Each of the plus side cables includes a plus side connector. As a result, each of the plus side cables is connected to the plus side connector. Each of the minus side cables is provided with a minus side connector. Thereby, each minus side cable is connected by the minus side connector.
Examples of such a high voltage cable connector structure include the following prior art documents.

Japanese Utility Model Publication No. 63-157174

  In the signal electrical connector according to Patent Document 1, protrusions along the insertion direction of the female connector are formed on both surface portions of the male connector, while the protrusions slide on both end surfaces of the recess of the female connector. It is a structure in which a guide groove is formed that is freely fitted and guides the male connector in the insertion direction.

However, in the past, for the connection between the junction box and the upper high-voltage battery pack, and the connection between the upper high-voltage battery pack and the lower high-voltage battery pack, the connectors must be connected in the correct combination from among multiple connectors. I had to. In addition, the junction box and the high voltage battery pack are mounted in a narrow mounting space, and the connection of the connector may be carried out by hand.
For this reason, there existed a problem that the incorrect assembly | attachment of the male connector and female connector which comprise a connector structure generate | occur | produced, or the assembly workability | operativity with a male connector and a female connector fell.

  Then, this invention is providing the connector structure of the high voltage cable which improves the assembly | attachment workability | operativity of a male connector and a female connector while preventing the incorrect assembly | attachment of a male connector and a female connector.

  The present invention relates to a connector structure of a high-voltage cable composed of a plus-side cable and a minus-side cable, wherein the male connector is provided with columnar protrusions extending in the left-right direction at the front side ends of the left and right sides, and the female connector is Concave portions are provided at the front side ends of the left and right side surfaces, respectively, and when the male connector and the female connector are fitted, the protrusion of the male connector is fitted into the concave portion of the female connector.

  The present invention can prevent the erroneous assembly of the male connector and the female connector, and can improve the workability of the assembly of the male connector and the female connector.

FIG. 1 is a partial perspective view of a power pack mounted on an electric vehicle. (Example) FIG. 2 is a schematic configuration diagram of a connector structure of a high voltage cable. (Example) FIG. 3 is an assembled perspective view of the connector structure. (Example) FIG. 4 is a left side view of the male connector. (Example) FIG. 5 is a plan view of the male connector. (Example) FIG. 6 is a left side view of the female connector. (Example) FIG. 7 is a plan view of the female connector. (Example)

  The present invention aims to prevent erroneous assembly of a male connector and a female connector and to improve the assembly workability between the male connector and the female connector. The female connector is provided with a recess at the front end of the left and right side surfaces.

1 to 7 show an embodiment of the present invention.
As shown in FIGS. 1 and 2, in an electric vehicle such as a hybrid vehicle or an electric vehicle, for example, a power pack 2 is mounted horizontally on a rear side frame 1 constituting the vehicle body. A space on the rear side frame 1 in which the power pack 2 is mounted is a rear portion of the vehicle and a narrow mounting space.
The power pack 2 includes a lower first high-voltage battery pack 4 and an upper second high-voltage battery pack 5 as a plurality of high-voltage battery packs in a vertical direction on a pack frame 3 fixed to the rear side frame 1. At the same time, a junction box (high voltage connection portion) 6 is arranged on the second high voltage battery pack 5.

As shown in FIG. 2, the first high-voltage battery pack 4 includes a first plus terminal (plus pole) 7A and a first plus side cable 8A connected to the first plus terminal 7A, and a first minus terminal. (Minus pole) 9A and a first minus side cable 10A connected to the first minus terminal 9A. The first plus side cable 8A and the first minus side cable 10A constitute a first high voltage cable 11A.
The second high voltage battery pack 5 includes a second plus terminal 7B and a second plus cable 8B connected to the second plus terminal 7B, and is connected to the second minus terminal 9B and the second minus terminal 9B. A second negative cable 10B. The second plus side cable 8B and the second minus side cable 10B constitute a second high voltage cable 11B.
The second high voltage battery pack 5 includes a third plus terminal 7C and a third plus side cable 8C connected to the third plus terminal 7C, and is connected to the third minus terminal 9C and the third minus terminal 9C. A third negative cable 10C. The third plus side cable 8C and the third minus side cable 10C constitute a third high voltage cable 11C.
The junction box 6 includes a fourth plus terminal 7D and a fourth plus side cable 8D connected to the fourth plus terminal 7D, and a fourth minus side connected to the fourth minus terminal 9D and the fourth minus terminal 9D. Cable 10D. The fourth positive cable 8D and the fourth negative cable 10D constitute a fourth high voltage cable 11D.

As shown in FIG. 2, the first plus-side cable 8A and the second plus-side cable 8B are connected by the first connector constituting body 12A. The first minus cable 10A and the second minus cable 10B are connected by the second connector structure 12B. Thereby, the 1st high voltage battery pack 4 and the 2nd high voltage battery pack 5 are electrically connected.
The third plus side cable 8C and the fourth plus side cable 8D are connected by the third connector constituting body 12C. The third negative cable 10C and the fourth negative cable 10D are connected by a fourth connector structure 12D. Thereby, the 2nd high voltage battery pack 5 and the junction box 6 are electrically connected.

Since the first to fourth connector constituent bodies 12A to 12D have the same structure, they will be described as simply the connector structure 12 as follows. Further, each of the above-described plus-side cables 8A to 8D will be described as simply the plus-side cable 8, and each of the above-described minus-side cables 10A to 10D will be described simply as the minus-side cable 10.
As shown in FIG. 3, the connector structure 12 includes, for example, a male connector 13 provided in one minus side cable 10 and a female connector 14 provided in the other minus side cable 10.
As shown in FIG. 3, the male connector 13 is fitted into the female connector 14.

3 to 5, the male connector 13 includes an upper wall 15, a bottom wall 16, a left side wall 17, a right side wall 18, a front wall 19, and a rear wall 20, and has a height H1 (for example, 20 mm). And the front-back direction is formed in length L1 (for example, 30 mm).
As shown in FIG. 5, the left side wall 17 and the right side wall 18 form both left and right side surfaces of the male connector 13 that are tapered at angles θ · θ in a tapered shape from the front wall 19 toward the rear wall 20 in plan view. . Thus, as shown in FIG. 5, the male connector 13 has the front wall 19 formed in a width W1 and the rear wall 20 formed in a width W2 smaller than the width W1 of the front wall 19 in the left-right direction.
The left side wall 17 and the right side wall 18 are respectively provided with columnar left projections 21 and right projections 22 extending in the left and right directions from the left and right side surfaces. The left protrusion 21 and the right protrusion 22 are disposed at a distance L2 (for example, 1 to 3 mm) rearward from the front end of the front wall 19 and at a height H2 (for example, 10 mm) of an intermediate portion in the vertical direction. . The left protrusion 21 and the right protrusion 22 are formed to have a diameter D (for example, 2 mm) and project from the left and right side surfaces of the left wall 17 and the right wall 18 with a length L3 (for example, 1 to 3 mm).

The female connector 14 is for inserting the male connector 13 and includes an upper wall 23, a bottom wall 24, a left side wall 25, a right side wall 26, and a rear wall 27 as shown in FIGS. Become. The female connector 14 includes a front opening 28 on the side facing the male connector 13, an upper inner surface 29, a bottom inner surface 30, a left inclined inner surface 31, and a right inclined inner surface that follow each outer surface of the male connector 13. And a storage hole 34 as a space formed by the rear side inner surface 33. When the male connector 13 is housed in the housing hole 34 of the female connector 14, the rear wall 20 of the male connector 13 contacts the rear inner surface 33 of the rear wall 27 of the female connector 14.
On the left side wall 25 and the right side wall 26 of the female connector 14, a left side recess 35 and a right side recess 36 are formed at positions facing the left side protrusion 21 and the right side protrusion 22 of the male connector 13. The left concave portion 35 and the right concave portion 36 have a length L4 (for example, 1 to 3 mm) and a height H3 (for example, 2 mm) from the front side end so as to receive the left protrusion 21 and the right protrusion 22 of the male connector 13. To 3 mm).

  In the connector structure 12, when the male connector 13 and the female connector 14 are fitted, the left protrusion 21 and the right protrusion 22 of the male connector 13 are fitted into the left recess 35 and the right recess 36 of the female connector 14.

As a result, in this embodiment, the male connector 13 includes columnar protrusions 21 and 22 that extend in the left-right direction at the front side ends of the left and right side surfaces. The female connector 14 includes concave portions 35 and 36 at the front side ends of the left and right side surfaces, respectively. In a state where the male connector 13 and the female connector 14 are fitted, the protrusions 21 and 22 of the male connector 13 are fitted into the recesses 35 and 36 of the female connector 14.
With such a structure, in a state where the male connector 13 and the female connector 14 are fitted, the protrusions 21 and 22 of the male connector 13 are fitted into the recesses 35 and 36 of the female connector 14, so that the male connector 13 and the female connector 14 are fitted. It is possible to prevent erroneous assembly. Further, in the state in which the male connector 13 and the female connector 14 are fitted, the protrusions 21 and 22 of the male connector 13 are fitted into the recesses 35 and 36 of the female connector 14, so that the male connector 13 and the female connector 14 are assembled. Can be improved. Furthermore, when the male connector 13 and the female connector 14 are removed, the projections 21 and 22 of the male connector 13 serve as a guide, so that the male connector 13 and the female connector 14 can be easily removed.
The male connector 13 having the protrusions 21 and 22 is a male connector of one minus side cable 10, and the female connector 14 having the recesses 35 and 36 is a female connector of the other minus side cable 10.
With such a structure, the male connector 13 including the protrusions 21 and 22 is a male connector of the negative cable 10, and the female connector 14 including the recesses 35 and 36 is a female connector of the negative cable. Assembling workability with the female connector 14 can be improved. In other words, the male connector 13 and the female connector 14 may not be removed once they are mated. When the male connector 13 and the female connector 14 are mated, the connector component 12 of the plus cable is first attached. Since the connector structure 12 of the minus side cable is brought into the fitted state after that, the cable is more easily involved later when the connector structure 12 of the minus side cable is brought into the fitted state. Therefore, the assembling property of the connector structure 12 is improved.

  The connector structure of the high voltage cable according to the present invention can be applied to various vehicles.

DESCRIPTION OF SYMBOLS 1 Rear side frame 2 Power pack 3 Pack frame 4 1st high voltage battery pack 5 2nd high voltage battery pack 6 Junction box 8A 1st plus side cable 8B 2nd plus side cable 8C 3rd plus side cable 8D 4th plus side cable 10A First negative cable 10B Second negative cable 10C Third negative cable 10D Fourth negative cable 11A First high voltage cable 11B Second high voltage cable 11C Third high voltage cable 11D Fourth high voltage cable 12 Connector Constituent body 12A First connector constituent body 12B Second connector constituent body 12C Third connector constituent body 12D Fourth connector constituent body 13 Male connector 14 Female connector 21 Left protrusion 22 Right protrusion 28 Inserting opening 34 Storage hole 35 Side recess 36 right-hand side recess

Claims (2)

  In the connector structure of a high-voltage cable composed of a plus-side cable and a minus-side cable, the male connector has columnar protrusions extending in the left-right direction at the front end of the left and right sides, and the female connector is on the left and right sides. A connector for a high-voltage cable comprising a recess at a front end, wherein the protrusion of the male connector fits into the recess of the female connector when the male connector and the female connector are fitted together Construction.   The high voltage according to claim 1, wherein the male connector including the protrusion is a male connector of the negative cable, and the female connector including the recess is a female connector of the negative cable. Cable connector structure.

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