This application is on the basis of Japanese Patent Application No. 2012-006845, the contents of which are hereby incorporated by reference.
1. Technical Field
The present invention relates to an assembling structure of bus bar for assembling the bus bar with a housing of an electronic device.
2. Background Art
Various structures have been proposed as an assembling structure of bus bar for assembling the bus bar with a housing of an electronic device (for example, see PTL 1). As one conventional example, the assembling structure of bus bar as shown in
As shown in
As shown in
The housing 203 is provided with a fixing portion 230 to fix the fitting piece 221. thereto. As shown in
Further, in
As shown in
According to the assembling structure of bus bar 201 having the above configuration, when the press-fitting piece 221 is press-fitted into between two faces facing each other in the arrow Z direction of the press-fitting hole 204, the press-fitting piece 221 is fixed to the fixing portion 230. Then, when the press-fitting piece 221 is fixed to the fixing portion 230, the bus bar 202 is assembled with the housing 203.
Patent Literature 1: JP, A, 2000-069648
However, in the above assembling structure of bus bar 201, there is a problem described below. Namely, because the size in the width direction (size in the arrow X direction) of the press-fitting hole 204 is formed a little larger than the size in the width direction of the press-fitting piece 221, when the press-fitting piece 221 is press-fitted into the press-fitting hole 204, the press-fitting piece 221 may be press-fitted obliquely relative to the arrow Y direction. In this case, there is a problem that an alignment error of a pair of male terminals 223 may occur, or the press-fitting piece 221 may shave an inner face of the press-fitting hole 204 to reduce holding power of the press-fitting piece 221. Further, according to the assembling structure of bus bar 201, while the bus bar 202 is assembled with the housing 203, an abutment position between the base portion 220 and the fixing portion 230 is only one point denoted by H in
Accordingly, an object of the present invention is to provide an assembling structure of bus bar able to prevent a bus bar from being press-fitted obliquely when the bus bar is press-fitted into a housing, and able to prevent the bus bar from being displaced while the bus bar is assembled.
For achieving the object, according to a first aspect of the present invention, there is provided an assembling structure of bus bar including:
According to the first aspect of the present invention, the bus bar is provided with the base portion extended in a band shape, the rectangular-plate-shaped press-fitting piece extended perpendicular to the longitudinal direction of the base portion from the one end of the base portion, and the extended portion extended from the one end of the base portion and perpendicular to the press-fitting portion. Therefore, 25 when the press-fitting piece is press-fitted into the pres-fitting hole, the bus bar is pressed by two positions of the press-fitting piece, thereby the bus bar is prevented from being press-fitted obliquely. While the press-fitting piece is press-fitted into the press-fitting hole, two positions of the base portion and the extended portion abut on an outer periphery of the press-fitting hole. Therefore, the alignment accuracy of the bus bar is improved, and the bus bar is prevented from being displaced when the outer force is applied to the bus bar.
These and other objects, features, and advantages of the present invention will become more apparent upon reading of the following detailed description along with the accompanied drawings.
An assembling structure of bus bar according to an embodiment of the present invention will be explained with reference to
The bus bar 2 is provided with a base portion 20 extended in a band shape, a rectangular-plate-shaped press-fitting piece 21 extended in a direction perpendicular to a longitudinal direction of the base portion 20 from one end of the base portion 20, an extended portion 24 extended from the one end of the base portion 20 and perpendicular to the press-fitting piece 21, a power-connecting portion 22 continued to the other end of the base portion 20 and into which electric power is inputted, and a pair of male terminals 23 continued to the center of the base portion 20 and electrically connected to a not-shown electronic component. Both end faces 21a in a width direction of the press-fitting piece 21 are extended straight, and not provided with a projection or the like. Further, a dotted line of the bus bar 2 in
The housing 3 is provided with a fixing portion 30 to which the press-fitting piece 21 is fixed. An outer shape of this fixing portion 30 is formed in a box shape. The fixing portion 30 is provided with a press-fitting hole 4 into which the press-fitting piece 21 is to be press-fitted, and a groove 5 into which a part of the base portion 20 in the vicinity of the press-fitting piece 21 is to be inserted.
Further, in
As shown in
A size in a width direction (a size in an arrow X direction) of the press-fitting hole 4 is formed a little larger than a size in a width direction of the press-fitting piece 21, and a size in a thickness direction (a size in an arrow Z direction) of the press-fitting hole 4 is formed smaller than a size in a thickness direction of the press-fitting piece 21.
The groove 5 is formed in a concave shape in the arrow Y direction from the upper face 30a of the fixing portion 30, and extended in the arrow X direction. Reference sign 5a in
According to the assembling structure of bus bar 1 having the above configuration, as shown in
Further, according to the assembling structure of bus bar 1, while the press-fitting piece 21 is press-fitted into the press-fitting hole 4, two positions of the end face 20a of the base portion 20 and the end face 24a of the extended portion 24 abut on the bottom face 5a of the groove 5, namely, the outer periphery of the press-fitting hole 4. Reference sign E in
Further, according to the assembling structure of bus bar 1, while the press-fitting piece 21 is press-fitted into the press-fitting hole 4, the end face 20b opposite to the end face 20a of the base portion 20, and the end faces 24b, 24c of the extended portion 24 do not abut on any part of the housing 3. Thus, according to the assembling structure of bus bar 1 of the present invention, because a part abutting on the end face 24b of the extended portion 24 is not provided on the housing 3, the press-fitting piece 21 can be easily press-fitted into the press-fitting hole 4.
Although the present invention has been fully described by way of example with reference to the accompanying drawings, it is to be understood that various changes and modifications will be apparent to those skilled in the art. Therefore, unless otherwise such changes and modifications depart from the scope of the present invention hereinafter defined, they should be construed as being included therein.
Number | Date | Country | Kind |
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2012-006845 | Jan 2012 | JP | national |