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JP-7856680-B2 - Connecting structure and assembly

JP7856680B2JP 7856680 B2JP7856680 B2JP 7856680B2JP-7856680-B2

Inventors

  • 桂巻 隆彦
  • 加藤 元
  • 野村 章一

Assignees

  • 矢崎総業株式会社

Dates

Publication Date
20260511
Application Date
20240110

Claims (7)

  1. A first conductive portion comprising a first busbar having a first contact surface and a first stud protruding from the first contact surface, A second conductive portion is provided at a location separate from the first conductive portion, A third conductive portion is capable of contacting the first contact surface and the first stud, and is movable relative to the first conductive portion and the second conductive portion in a direction of movement intersecting the first contact surface. A biasing portion that can bias the third conductive portion toward the first contact surface and can relay the conductivity between the second conductive portion and the third conductive portion, Equipped with, Connection structure.
  2. The device further comprises a housing having an inner circumferential surface and housing the biasing portion, The third conductive portion is movable along the inner circumferential surface. The connection structure according to claim 1.
  3. The biasing portion comprises a coil spring having a first end electrically connected to the second conductive portion and a second end electrically connected to the third conductive portion. The connection structure according to claim 1.
  4. The third conductive portion further comprises a first mating portion into which the first stud is inserted. The connection structure according to claim 1.
  5. The third conductive portion further comprises an elastic conductor that can contact the first stud. The connection structure according to claim 1.
  6. The second conductive portion comprises a second busbar having a second contact surface and a second stud protruding from the second contact surface, The system further comprises a fourth conductive portion that is capable of contacting the second contact surface and the second stud, and is movable relative to the first conductive portion and the second conductive portion in the direction of movement, The biasing portion is capable of biasing the fourth conductive portion toward the second contact surface, and is also capable of relaying conductivity between the third conductive portion and the fourth conductive portion. The connection structure according to claim 1.
  7. A connection structure according to any one of claims 1 to 6, A battery pack connected to one of the first conductive portion and the second conductive portion, The equipment connected to the other of the first conductive part and the second conductive part, An assembly comprising the components.

Description

Embodiments of the present invention relate to connecting structures and assemblies. It is widely known that battery packs are connected to devices as power sources. For example, Patent Document 1 discloses the connection of a battery module to the fuse/contactor unit of an electric vehicle. Japanese Patent Publication No. 2018-144524 These are front views of the assemblies before fastening according to each embodiment.This is an enlarged view of part II in Figure 1 of the assembly before fastening according to the first embodiment.This is a cross-sectional view of the assembly before fastening according to the first embodiment, taken along the line III-III in Figure 1.This is a bottom view of the third conductive section and housing according to the first embodiment.This is a cross-sectional view of the assembly after fastening according to the first embodiment, taken along the line III-III in Figure 1.This is an explanatory diagram of the current path in the assembly after fastening according to the first embodiment.This is a cross-sectional view of the assembly before fastening, according to a modified example of the first embodiment, along the line VII-VII in Figure 1.This is a modified view of the first embodiment, showing the third conductive section and the bottom view of the housing.This is a cross-sectional view of the assembly before fastening according to the second embodiment, taken along the line III-III in Figure 1.This is a cross-sectional view of the assembly after fastening according to the second embodiment, taken along the line III-III in Figure 1.This is a front view of the assembly before fastening, showing a modified example according to each embodiment. <First Embodiment> The following describes a connection structure and assembly of one embodiment with reference to the figures. (Assembly structure) As shown in Figure 1, the assembly 9 of this embodiment comprises a plurality of connection structures 1, a device 91, a battery pack 92, and a fastening member 93. The device 91 and the battery pack 92 are fastened together with the fastening member 93, thereby unitizing the assembly 9. For example, the assembly 9 may be mounted on a mobility unit such as an electric vehicle. (device) Device 91 receives and receives power from the battery pack 92. For example, device 91 may be high-voltage equipment such as a high-voltage J/B (junction box), OBC (onboard charger), or DC-DC converter. Device 91 has a second mounting surface 94 on the side facing the battery pack 92. Device 91 has a main surface 95 on the side opposite to the side facing the battery pack 92. Hereafter, the direction parallel to the direction the second mounting surface 94 faces will be defined as the Z direction. Hereafter, the Z direction will also be referred to as the "movement direction." Furthermore, the directions that intersect each other within the plane facing the Z direction will be defined as the X and Y directions. For example, the X, Y, and Z directions may be mutually orthogonal. For example, the Z direction may be the "up and down direction." For example, the second mounting surface 94 may be a plane facing downwards. For example, the main surface 95 may be a plane facing upwards. For example, the second mounting surface 94 and the main surface 95 may be planes parallel to each other. The second mounting surface 94 and the main surface 95 are both insulating surfaces made of an insulating material. For example, the second mounting surface 94 and the main surface 95 may each be an insulating housing, a partially insulating cover, or the like. The device 91 has flange portions 96 extending on both sides in the X direction. The flange portions 96 have multiple through-holes 96h extending in the Z direction. The device 91 and the battery pack 92 are fastened together with fasteners 93 inserted into each through-hole 96h. (Battery pack configuration) The battery pack 92 includes a plurality of battery cells. The battery pack 92 has a first mounting surface 97 on the side facing the device 91. The first mounting surface 97 faces the second mounting surface 94. For example, the first mounting surface 97 may be a plane facing upwards. The battery pack 92 has a screw hole 92h in the first mounting surface 97. The fastener 93, inserted into the through hole 96h, is tightened into the screw hole 92h. The first mounting surface 97 is an insulating surface made of an insulating material. For example, the first mounting surface 97 may be an insulating housing, a partially insulating cover, or the like. (Connection structure configuration) The multiple connection structures 1 are structures for electrically connecting the device 91 and the battery pack 92. The multiple connection structures 1 are arranged in the X direction. Each connection structure 1 is provided extending from the second mounting surface 94 to the first mounting surface 97. As shown in Figures 2 and 3, each connection structure 1 comprises an equipment co