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CN-122029700-A - Bus bar connecting structure and bus bar

CN122029700ACN 122029700 ACN122029700 ACN 122029700ACN-122029700-A

Abstract

In the bus bar connecting structure of the present invention, the bus bar has a flat plate-shaped joint region, and is connected via the screw connection mechanism in a state in which the joint region is joined to the mounting surface of the electric component to be connected. A1 st thermosetting film is interposed between the bonding region and the mounting surface. Preferably, the 1 st thermosetting film has conductivity and is bonded to the bonding region in advance. Preferably, the 2 nd thermosetting film is interposed between the head portion of the fastening member and the joining region. Preferably, the 2 nd thermosetting film has conductivity and is bonded to the bonding region in advance.

Inventors

  • Long Jianxiangtai

Assignees

  • 新确有限公司

Dates

Publication Date
20260512
Application Date
20241017
Priority Date
20231023

Claims (13)

  1. 1. A bus bar connecting structure in which a conductive bus bar is electrically and mechanically connected to an electrical component, characterized in that, The bus bar has a flat plate-shaped joint area, and is connected with the electric component through a screw connection mechanism in a state that the joint area is jointed with the mounting surface of the electric component, A1 st thermosetting film is interposed between the bonding region and the mounting surface.
  2. 2. The bus bar connecting structure according to claim 1, wherein, The electrical component is configured in such a way that the mounting surface functions as an electrical connection part, The screw connection mechanism comprises a fastening connection member having a shaft portion with a screw thread formed on the outer peripheral surface thereof so as to function as a screw thread portion, and a head portion provided on one end side of the shaft portion, and a screw hole provided on the mounting surface so as to screw the shaft portion in, In the joint region, a locking part is provided in which the shaft part is inserted and the head part is not inserted, The 1 st thermosetting film has conductivity and is configured to be capable of inserting the shaft portion.
  3. 3. The bus bar connecting structure according to claim 2, wherein, A2 nd thermosetting film is interposed between the head portion and the bonding region, The 2 nd thermosetting film is configured to be capable of inserting the shaft portion.
  4. 4. The bus bar connecting structure according to claim 3, wherein, The 2 nd thermosetting film is adhered to the bonding region.
  5. 5. The bus bar connecting structure according to claim 1, wherein, The electric component comprises a main body part with the mounting surface and a rod-shaped electrode terminal which extends outwards from the mounting surface and acts as an electric connection part, The screw connection mechanism has a screw portion formed on an outer peripheral surface of the electrode terminal, and a nut portion screwed into the screw portion, The joint region is provided with a locking portion through which the electrode terminal is inserted and through which the nut portion is not inserted.
  6. 6. The bus bar connecting structure according to claim 5, wherein, A2 nd thermosetting film having conductivity is interposed between the nut portion and the joint region, The 2 nd thermosetting film is configured to be capable of inserting the electrode terminal.
  7. 7. The bus bar connecting structure according to claim 6, wherein, The 2 nd thermosetting film is adhered to the bonding region.
  8. 8. The bus bar connecting structure according to any one of claims 1 to 7, wherein, The 1 st thermosetting film is adhered to the joint region.
  9. 9. A bus bar connecting structure in which a conductive bus bar is electrically and mechanically connected to an electrical component, characterized in that, The bus bar has a flat plate-shaped joint area, and is connected with the electric component through a screw connection mechanism in a state that the joint area is jointed with the mounting surface of the electric component, The screw-thread connecting mechanism comprises a fastening connecting member having a shaft portion with a screw thread formed thereon and a head portion provided on one end side of the shaft portion, and a screw hole provided on the mounting surface so that the shaft portion is screwed in, In the joint region, a locking part is provided in which the shaft part is inserted and the head part is not inserted, A thermosetting film is interposed between the head portion and the bonding region, The thermosetting film is configured to be capable of inserting the shaft portion.
  10. 10. The bus bar connecting structure according to claim 9, wherein, The thermosetting film is adhered to the bonding region.
  11. 11. A bus bar is an electrically conductive bus bar electrically and mechanically connected to an electrical component via a screw connection mechanism, characterized in that, The bus bar has a flat plate-shaped joint region which is jointed with a mounting surface of the electric component in a joint state of being connected with the electric component, a clamping-in part which is formed in the joint region in a mode that a thread part which is a part of the thread joint mechanism can be inserted, and a1 st thermosetting film which is adhered to an opposite surface which is opposite to the mounting surface in the joint region.
  12. 12. The bus bar of claim 11 wherein the bus bar is configured to, The 1 st thermosetting film has conductivity.
  13. 13. The bus bar according to claim 11 or 12, wherein, The bus bar has a2 nd thermosetting film adhered to a surface of the junction region on a side opposite to the facing surface.

Description

Bus bar connecting structure and bus bar Technical Field The present invention relates to a bus bar connecting structure in which a bus bar is connected to an electrical component, and a bus bar connected to an electrical component. Background Bus bars for electrically connecting the 1 st and 2 nd electric components such as batteries are widely used in various fields. It is desirable that the bus bar reduce the resistance between the 1 st and 2 nd electrical members as much as possible, and for this reason, stabilization of the junction between the bus bar and the 1 st and 2 nd members is required. In general, the bus bar is connected to a corresponding electrical component via a screw connection mechanism (patent documents 1 and 2). In the structure in which the bus bar is connected to the electrical component via the screw connection mechanism, if the bus bar is used in an environment that receives vibration and/or impact, such as when the bus bar is used as a member that electrically connects between the secondary batteries in the vehicle-mounted battery, there is a possibility that the screw connection mechanism loosens, and the stability of the connection between the bus bar and the electrical component is impaired. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 2013-062045 Patent document 2 Japanese patent application laid-open No. 2017-033694 Disclosure of Invention The present invention has been made in view of the above-described conventional art, and an object 1 of the present invention is to provide a bus bar connecting structure in which a bus bar is connected to an electrical component via a screw connecting mechanism, which can effectively prevent or reduce occurrence of loosening in the screw connecting mechanism during use. Further, the present invention has as its 2 nd object to provide a bus bar connected to an electric component via a screw connection mechanism, which can effectively prevent or reduce the occurrence of loosening in the screw connection mechanism during use. In order to achieve the above object 1, a 1 st aspect of the present invention provides a bus bar connecting structure in which a conductive bus bar is electrically and mechanically connected to an electrical component, the bus bar having a flat plate-shaped joint region, the bus bar being connected to the electrical component via a screw connection mechanism in a state in which the joint region is joined to a mounting surface of the electrical component, and a 1 st thermosetting film being interposed between the joint region and the mounting surface. According to the bus bar connecting structure of claim 1 of the present invention, the occurrence of loosening of the screw connecting mechanism connecting the bus bar and the electric member due to vibration, impact, or the like at the time of use can be effectively prevented or reduced. In aspect 1, wherein the electrical member is configured such that the mounting surface functions as an electrical connection portion, the screw connection mechanism includes a fastening connection member having a shaft portion in which a screw is formed on an outer peripheral surface so as to function as a screw portion, and a head portion provided on one end side of the shaft portion, and a screw hole provided on the mounting surface so that the shaft portion is screwed in. The joint region is provided with a locking portion formed by an opening, a slit, or the like through which the shaft portion is inserted and through which the head portion is not inserted, and the 1 st thermosetting film has conductivity and is configured to be capable of inserting the shaft portion. In the above aspect 1, it is preferable that the 2 nd thermosetting film is interposed between the head portion and the joining region. The 2 nd thermosetting film is configured to be capable of inserting the shaft portion. Preferably, the 2 nd thermosetting film is bonded to the bonding region. In the 2 nd aspect of the electric component including the main body portion having the mounting surface and the rod-shaped electrode terminal extending outward from the mounting surface and functioning as the electric connection portion, the screw connection mechanism includes a screw portion formed on an outer peripheral surface of the electrode terminal, and a nut portion screwed into the screw portion. The joint region is provided with a locking portion through which the electrode terminal is inserted and through which the nut portion is not inserted. In the above aspect 2, it is preferable that a conductive 2 nd thermosetting film is interposed between the nut portion and the joint region. The 2 nd thermosetting film is configured to be capable of inserting the electrode terminal. Preferably, the 2 nd thermosetting film is bonded to the bonding region. In the various configurations of the 1 st aspect, it is preferable that the 1 st thermosetting film is adhered to the joint region.