阅读说明：本技术 一种电容器的母排结构及汽车电容器 (Busbar structure of capacitor and automobile capacitor ) 是由 朱未 陈建立 蔡玲儿 陈伟 王雪融 刘松 于 2019-09-17 设计创作，主要内容包括：本发明公开了一种电容器的母排结构及汽车电容器,所述母排结构包括上连接板、下连接板、多个电容器芯子、至少一第一上引出端组、一侧引出端组,电容器芯子电连接在上连接板和下连接板之间；第一上引出端组包括成对配合的第一引出端和第二引出端,侧引出端组包括成对配合的第三引出端和第四引出端；上连接板的其中一侧设有向下延伸的第一侧连接板,下连接板的其中一侧设有向上延伸的第二侧连接板,第一侧连接板与第二侧连接板位于不同侧；第一引出端电连接于上连接板,第二引出端、第四引出端电连接于第二侧连接板,第三引出端通过一第一连接片电连接于第一侧连接板。本发明使上连接板、下连接板的载流大幅提高,并具有足够的爬电距离。(The invention discloses a busbar structure of a capacitor and an automobile capacitor, wherein the busbar structure comprises an upper connecting plate, a lower connecting plate, a plurality of capacitor cores, at least one first upper leading-out end group and one side leading-out end group, wherein the capacitor cores are electrically connected between the upper connecting plate and the lower connecting plate; the first upper leading-out end group comprises a first leading-out end and a second leading-out end which are matched in pair, and the side leading-out end group comprises a third leading-out end and a fourth leading-out end which are matched in pair; one side of the upper connecting plate is provided with a first side connecting plate extending downwards, one side of the lower connecting plate is provided with a second side connecting plate extending upwards, and the first side connecting plate and the second side connecting plate are positioned on different sides; the first leading-out end is electrically connected with the upper connecting plate, the second leading-out end and the fourth leading-out end are electrically connected with the second side connecting plate, and the third leading-out end is electrically connected with the first side connecting plate through a first connecting piece. The invention greatly improves the current carrying of the upper connecting plate and the lower connecting plate and has enough creepage distance.)

1. A busbar structure of a capacitor comprises an upper connecting plate, a lower connecting plate, a plurality of capacitor cores, at least one first upper leading-out end group and one side leading-out end group, wherein the capacitor cores are electrically connected between the upper connecting plate and the lower connecting plate; the first upper leading-out end group comprises a first leading-out end and a second leading-out end which are matched in pair, and the side leading-out end group comprises a third leading-out end and a fourth leading-out end which are matched in pair; the method is characterized in that: one side of the upper connecting plate is provided with a first side connecting plate extending downwards, one side of the lower connecting plate is provided with a second side connecting plate extending upwards, and the first side connecting plate and the second side connecting plate are positioned on different sides; the first leading-out end is electrically connected with the upper connecting plate, the second leading-out end and the fourth leading-out end are electrically connected with the second side connecting plate, the third leading-out end is electrically connected with the first side connecting plate through a first connecting piece, the first upper leading-out end group is positioned on the inner side of the second side connecting plate, and the side leading-out end group is positioned on the outer side of the second side connecting plate.

2. The busbar structure of capacitor according to claim 1, wherein: the number of the first upper leading-out end groups is at least two, and one of the first upper leading-out end groups and the side leading-out end group are respectively positioned on the inner side and the outer side of one end of the second side connecting plate.

3. The busbar structure of capacitor according to claim 1, wherein: the lower connecting plate is also provided with a third side connecting plate extending upwards, the third side connecting plate and the first side connecting plate are positioned on the opposite side, and the third side connecting plate and the second side connecting plate are positioned on the adjacent side; the fifth leading-out end is electrically connected with the upper connecting plate, and the sixth leading-out end is electrically connected with the third side connecting plate through a second connecting sheet.

4. The busbar structure of capacitor according to claim 1, wherein: the third leading-out end comprises a U-shaped sheet with a downward opening and the first connecting sheet, the first connecting sheet is integrally formed on the side face of the U-shaped sheet and is electrically connected to the outer side face of the first side connecting plate, and the U-shaped sheet is matched with the outer side of the second side connecting plate; the fourth leading-out end is in a U shape with a downward opening, one side of the fourth leading-out end is electrically connected to the outer side face or the inner side face of the second side connecting plate, and the other side of the fourth leading-out end is matched with the outer side of the second side connecting plate.

5. The busbar structure of capacitor according to claim 1, wherein: the first leading-out end is L-shaped, a horizontal piece of the first leading-out end is electrically connected to the edge of one end, close to the second side connecting plate, of the upper connecting plate, and a vertical piece of the first leading-out end is vertically upward; the second leading-out end is ㄣ -shaped, the vertical piece at the bottom of the second leading-out end is respectively and electrically connected with the second side connecting plate, the horizontal piece of the second leading-out end is respectively positioned above the upper connecting plate, and the vertical piece at the top of the second leading-out end is respectively and vertically upward.

6. The busbar structure of capacitor according to claim 5, wherein: the vertical pieces of the first leading-out end and the vertical pieces at the top of the second leading-out end are arranged in a row along the length direction of the second side connecting plate, and/or an insulating film is arranged on the bottom surface of the horizontal piece of the second leading-out end.

7. The busbar structure of capacitor according to claim 3, wherein: the fifth leading-out end is L-shaped, a horizontal piece of the fifth leading-out end is electrically connected to the edge of one end of the upper connecting plate, which is close to the second side connecting plate, and a vertical piece of the fifth leading-out end is vertically upward; the sixth leading-out end comprises an L-shaped sheet and the second connecting sheet, and the second connecting sheet is integrally formed on the side face of the horizontal sheet of the L-shaped sheet and is electrically connected to the outer side face of the second side connecting plate; the vertical piece of the L-shaped piece is vertically upward.

8. The busbar structure of capacitor according to claim 3, wherein: the first leading-out end, the second leading-out end, the third leading-out end, the fourth leading-out end, the fifth leading-out end and the sixth leading-out end are respectively provided with a first riveting hole and a welding hole for realizing electric connection, and the upper connecting plate, the first side connecting plate, the second side connecting plate and the third side connecting plate are respectively provided with a second riveting hole for being matched with the corresponding first riveting hole.

9. The busbar structure of capacitor according to claim 1, wherein: the upper connecting plate is provided with a plurality of first through holes in one-to-one correspondence with the plurality of capacitor cores, the lower connecting plate is provided with a plurality of second through holes in one-to-one correspondence with the plurality of capacitor cores, the edges of the first through holes are welded with the top ends of the corresponding capacitor cores respectively to form at least one welding point, and the edges of the second through holes are welded with the bottom ends of the corresponding capacitor cores respectively to form at least one welding point.

10. An automotive capacitor, comprising a housing, characterized in that: a busbar arrangement for a capacitor according to any of claims 1 to 9, contained within the housing.

Technical Field

The invention relates to the field of capacitors, in particular to a busbar structure of a capacitor and an automobile capacitor.

Background

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides a busbar structure of a capacitor and an automobile capacitor, wherein the busbar structure can take the creepage distance and the current carrying capacity of an upper connecting plate and a lower connecting plate into consideration.

The technical scheme adopted by the invention for solving the technical problems is as follows: a busbar structure of a capacitor comprises an upper connecting plate, a lower connecting plate, a plurality of capacitor cores, at least one first upper leading-out end group and one side leading-out end group, wherein the capacitor cores are electrically connected between the upper connecting plate and the lower connecting plate; the first upper leading-out end group comprises a first leading-out end and a second leading-out end which are matched in pair, and the side leading-out end group comprises a third leading-out end and a fourth leading-out end which are matched in pair; one side of the upper connecting plate is provided with a first side connecting plate extending downwards, one side of the lower connecting plate is provided with a second side connecting plate extending upwards, and the first side connecting plate and the second side connecting plate are positioned on different sides; the first leading-out end is electrically connected with the upper connecting plate, the second leading-out end and the fourth leading-out end are electrically connected with the second side connecting plate, the third leading-out end is electrically connected with the first side connecting plate through a first connecting piece, the first upper leading-out end group is positioned on the inner side of the second side connecting plate, and the side leading-out end group is positioned on the outer side of the second side connecting plate.

Furthermore, the number of the first upper leading-out end groups is at least two, and one of the first upper leading-out end groups and the side leading-out end group are respectively positioned on the inner side and the outer side of one end of the second side connecting plate.

The lower connecting plate is also provided with a third side connecting plate extending upwards, the third side connecting plate and the first side connecting plate are positioned on opposite sides, and the third side connecting plate and the second side connecting plate are positioned on adjacent sides; the fifth leading-out end is electrically connected with the upper connecting plate, and the sixth leading-out end is electrically connected with the third side connecting plate through a second connecting sheet.

Furthermore, the third leading-out end comprises a U-shaped sheet with a downward opening and the first connecting sheet, the first connecting sheet is integrally formed on the side surface of the U-shaped sheet and is electrically connected to the outer side surface of the first side connecting plate, and the U-shaped sheet is matched with the outer side of the second side connecting plate; the fourth leading-out end is in a U shape with a downward opening, one side of the fourth leading-out end is electrically connected to the outer side face or the inner side face of the second side connecting plate, and the other side of the fourth leading-out end is matched with the outer side of the second side connecting plate.

Furthermore, the first leading-out end is L-shaped, a horizontal piece of the first leading-out end is electrically connected to the edge of one end, close to the second side connecting plate, of the upper connecting plate, and a vertical piece of the first leading-out end is vertically upward; the second leading-out end is ㄣ -shaped, the vertical piece at the bottom of the second leading-out end is respectively and electrically connected with the second side connecting plate, the horizontal piece of the second leading-out end is respectively positioned above the upper connecting plate, and the vertical piece at the top of the second leading-out end is respectively and vertically upward.

Further, the vertical pieces of the first lead-out terminal and the vertical pieces at the top of the second lead-out terminal are arranged in a row along the length direction of the second side connecting plate, and/or an insulating film is arranged on the bottom surface of the horizontal piece of the second lead-out terminal.

Furthermore, the fifth leading-out end is L-shaped, a horizontal piece of the fifth leading-out end is electrically connected to the edge of one end of the upper connecting plate, which is close to the second side connecting plate, and a vertical piece of the fifth leading-out end is vertically upward; the sixth leading-out end comprises an L-shaped sheet and the second connecting sheet, and the second connecting sheet is integrally formed on the side face of the horizontal sheet of the L-shaped sheet and is electrically connected to the outer side face of the second side connecting plate; the vertical piece of the L-shaped piece is vertically upward.

Furthermore, the first leading-out end, the second leading-out end, the third leading-out end, the fourth leading-out end, the fifth leading-out end and the sixth leading-out end are respectively provided with a first riveting hole and a welding hole for realizing electric connection, and the upper connecting plate, the first side connecting plate, the second side connecting plate and the third side connecting plate are respectively provided with a second riveting hole for being matched with the corresponding first riveting hole.

Furthermore, the upper connecting plate is provided with a plurality of first through holes which are in one-to-one correspondence with the plurality of capacitor cores, the lower connecting plate is provided with a plurality of second through holes which are in one-to-one correspondence with the plurality of capacitor cores, the edges of the first through holes are welded with the top ends of the corresponding capacitor cores respectively to form at least one welding point, and the edges of the second through holes are welded with the bottom ends of the corresponding capacitor cores respectively to form at least one welding point.

The invention further provides an automobile capacitor, which comprises a shell and the busbar structure of the capacitor, wherein the busbar structure is accommodated in the shell.

Compared with the prior art, the invention has the following beneficial effects:

1. first side connecting plate, second side connecting plate are located the different sides, and are not influence each other, therefore, the width of first side connecting plate, second side connecting plate can carry out rational design according to the principle of taking into account creep distance and the current-carrying capacity of upper junction plate, lower junction plate, makes the current-carrying capacity of upper junction plate, lower junction plate obtain improving by a wide margin, ensures to have sufficient creep distance between upper junction plate and the lower junction plate simultaneously. In addition, the first leading-out end is electrically connected to the upper connecting plate, the second leading-out end and the fourth leading-out end are electrically connected to the second side connecting plate, the third leading-out end is electrically connected to the first side connecting plate through a first connecting sheet, the first upper leading-out end group is located on the inner side of the second side connecting plate, and the side leading-out end group is located on the outer side of the second side connecting plate, so that the layout of the first upper leading-out end group and the side leading-out end group is more reasonable, and the whole structure is more compact.

2. The number of the first upper leading-out end groups is at least two, one of the first upper leading-out end groups and the side leading-out end group are respectively positioned at the inner side and the outer side of one end of the second side connecting plate, so that the leading-out ends densely distributed at one end of the second side connecting plate are more reasonable in layout and do not interfere with each other.

3. The third side connecting plate is arranged, so that the sixth leading-out end can be conveniently connected, the current carrying capacity of the lower connecting plate can be improved, and the third side connecting plate can be matched with the first side connecting plate to limit the capacitor core.

4. Each leading-out end is arranged with the upper connecting plate and the lower connecting plate in a split mode, so that the upper connecting plate and the lower connecting plate can be conveniently punched and processed, the processing cost is reduced, and the materials, the thicknesses and the like of each leading-out end can be conveniently selected and arranged according to actual needs. The structure for electric connection is a first riveting hole and a welding hole which are respectively arranged on each leading-out end, so that the connection of each leading-out end is more convenient and firmer.

5. The arrangement of the first through holes and the second through holes enables the production process of the upper connecting plate and the lower connecting plate to be simpler, and the material consumption is less, so that the production cost of the busbar is reduced. In addition, the shell of the capacitor can be filled with epoxy resin through the gap between the first through hole and the capacitor core, so that the epoxy resin is filled more quickly, and the epoxy resin is distributed more uniformly.

The invention is further explained in detail with the accompanying drawings and the embodiments; however, the busbar structure of the capacitor and the automotive capacitor of the invention are not limited to the embodiments.

Drawings

Fig. 1 is an exploded schematic view of a busbar structure (including a housing) according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of an upper connecting plate and corresponding terminals of the present invention in a mated state according to an embodiment of the present invention;

FIG. 3 is a schematic view of a lower connecting plate and corresponding terminals of the present invention in a mated state;

fig. 4 is a schematic perspective view illustrating a busbar structure according to an embodiment of the invention;

FIG. 5 is a schematic perspective view of an automotive capacitor according to an embodiment of the present invention;

fig. 6 is a schematic structural view of the lower connecting plate and the corresponding terminals of the second embodiment of the present invention in a mated state.

Detailed Description