JPH1141749A - Bus-bar fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bus-bar fixing structure which enables insertion work, without deformations of an electrical junction box and a bus-bar and improves assembly workability. SOLUTION: The lower end edge part of a bus-bar 11 is inserted and held in the groove 12A of a bracket 12, and in this state, the bus-bar 11 is inserted into an electrical junction box 13. The outer connection terminals 11A of the bus-bar 11 are placed in the terminal housing gaps 13A of the electrical junction box 13, and the base part 11C is placed in the gap 13D inside the electrical junction box 13. The bracket 12 is retained by retaining protrusions 12C formed on the inner wall of the electrical junction box 13 with the retaining parts 12B of the bracket 12 so as to form the fixing structure of the bus-bar. With this constitution, the bus-bar 11 can be inserted to the electrical junction box 13 with margin and can be fixed only by retaining the bracket 12 with the electrical junction box 13, so that the assembly workability can be improved and/deformations of the bus-bar and the electrical junction box 13 side can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar fixing structure, and more particularly, to a structure in which a bus bar used for interconnection of a wire harness or the like is vertically inserted into an electric connection box and fixed.

[0002]

2. Description of the Related Art Conventionally, a bus bar fixing structure as shown in FIGS. 4 and 5 has been known. In this structure, as shown in FIG. 4, a plurality of external connection terminals 1A are formed so as to be parallel to each other in the busbar insertion direction, and the busbar 1 whose one side portion is bent is used, for example, for a relay box or the like. It is inserted into the electric junction box 2, and FIG. 5 shows a state where the insertion is completed. As shown in FIG. 5, inside the electric connection box 2, electrical insulation is performed such that thin insulating walls 2 A, 2 A for preventing contact of the bus bar 2 extend from the inner walls facing the electrical connection box 2. It is formed integrally with the connection box 2. The bus bar 1 includes these opposing insulating walls 2A,
The external connection terminal 1A is inserted between the terminals 2A from the side of the external connection terminal 1A. The external connection terminal 1A is fixed so as to protrude into the terminal insertion gap 2B of the electric connection box 2.

[0003]

However, in the above-described bus bar fixing structure, when the bus bar 1 is inserted from the side of the external connection terminal 1A between the thin insulating walls 2A, a plurality of external connection terminals 1 are connected. At the same time insulating walls 2A, 2A
There is a problem in that it is necessary to insert a gap between them, and insertion workability is reduced. In particular, there is a problem that the external connection terminal 1A and the insulating wall 2A are deformed with the insertion work.
In addition, in order to integrally form the thin insulating walls 2A and 2A therein, a structure is required in which the mold is inserted deep inside the electric connection box 2, so that the mold structure is complicated. There were problems such as an increase in die cost and a decrease in workability.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bus bar fixing structure in which an electric connection box and a bus bar can be inserted without being deformed, and the workability of assembling is improved.

[0005]

According to the first aspect of the present invention,
A busbar fixing structure, in which a busbar and a terminal receiving space penetrating vertically are formed at an upper portion into which an external connection terminal of the busbar is inserted and arranged, and a base portion into which a base portion of the busbar is inserted and arranged inside a lower portion An electric connection box in which a storage space is formed, and a bracket for holding the bus bar along a base of the bus bar are provided, and the bracket and the electric connection box are engaged and fixed.

In this bus bar fixing structure, the bus bar is fixed to the electric connection box by inserting the bus bar into the electric connection box while holding the bus bar in a bracket made of an insulating material. There is no need for a complicated structure such as forming opposing inner walls in opposition. For this reason,
In the electrical connection box, only a relatively large terminal accommodating space into which the external connection terminals of the bus bar are inserted, and a base accommodating cavity into which the base of the bus bar is inserted and arranged inside the lower portion are formed. It is good and the electrical junction box can be easily formed. Further, since it is only necessary to arrange the external connection terminals in the terminal accommodating gaps, the assembling work can be performed smoothly without causing deformation on the bus bar side.

According to a second aspect of the present invention, there is provided the bus bar fixing structure according to the first aspect, wherein the bus bar is inserted into a groove formed in the bracket.

In this bus bar fixing structure, the bus bar can be held on the bracket side by inserting the bus bar into the groove of the bracket. Therefore, it is only necessary to perform a simple operation of inserting the bus bar into the groove, and the assembling property is further simplified.

According to a third aspect of the present invention, there is provided the bus bar fixing structure according to the first or second aspect, wherein the electric connection box is configured such that an upper portion of a vertically penetrating space is isolated only by a partition. It is characterized in that a storage space is formed.

In this bus bar fixing structure, in addition to the effects of the first and second aspects of the present invention, the terminal receiving space of the electric connection box is a structure that can be isolated only by the partition walls. The work of inserting the external connection terminal becomes easy.

According to a fourth aspect of the present invention, there is provided the bus bar fixing structure according to any one of the first to third aspects, wherein the bus bar is formed by being bent substantially in an L shape. I have.

In this bus bar fixing structure, since the bus bar is bent in a substantially L-shape, it has an effect of increasing the mechanical strength of the bus bar. For this reason, the deformation of the bus bar can be suppressed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the bus bar fixing structure according to the present invention will be described below with reference to the embodiments shown in FIGS.

In the figure, reference numeral 11 denotes a bus bar. The bus bar 11 has a plurality of external connection terminals 11A protruding from an upper portion thereof so as to be parallel to each other. One side portion of the bus bar 11 is a bent portion 11B bent at a substantially right angle, and has a substantially L-shaped cross section. It is formed in a shape. Symbol 12 is
A substantially L-shaped groove 1 into which the lower edge of the bus bar 11 is inserted.
This is a bracket having a substantially L-shape in plan, made of an insulating material and formed with 2A, and is formed at a predetermined position on an inner wall of an electric junction box 13 to be described later on both upper sides of a long portion 12L of the bracket 12. Engaging part 12 engaging with engaging projection 13C
B and 12B are alternately arranged and formed. Also,
An engagement portion 12B is also provided on the outer upper portion of the short portion 12S of the bracket 12.

As shown in FIG. 2, the insulating partition 1 is placed on the upper part of the electric connection box 13 so that the external connection terminals 11A are individually arranged with the bus bar 11 inserted.
A terminal accommodating space 13A isolated by 3B is formed. In addition, a bracket 1 is provided under the electric connection box 13.
2 and a bus bar 11 mounted on the bracket 12
A continuous gap 13D for accommodating the base portion 11C and the bent portion 11B is formed. Also, the electric connection box 12
An engagement protrusion 13C that engages with the above-described engagement portion 12B on the bracket 12 side is formed on the inner wall of the lower gap.

Next, a procedure for assembling the bus bar 11 and the electric connection box 13 in the bus bar fixing structure of the present embodiment will be described. First, the lower edge of the bus bar 11 is inserted into the groove 12A of the bracket 12 (see FIG. 1). And
As shown in FIG. 2, the bus bar 11 and the bracket 12 are inserted from the side of the external connection terminal 11A toward the gap 13D of the electric connection box 13 and the terminal accommodating gap 13A. Accordingly, the external connection terminals 11A are individually inserted into the corresponding terminal accommodating gaps 13D. Also, the bracket 12
As shown in FIG. 3, the engaging portion 12A of the
Engages with an engagement protrusion 13C protruding from the inner wall of the gap 13D. By performing the above operations, the bus bar fixing structure of the present embodiment is obtained.

Although the embodiments have been described above, the present invention is not limited to the embodiments, and various changes accompanying the gist of the configuration are possible. For example, in the above-described embodiment, the bus bar 11 is formed by being bent in a substantially L-shape. However, if the bus bar 11 is inserted into and fixed to the electric junction box 13 after being assembled with the bracket 12, However, the present invention is not limited to this. In the above-described embodiment, the number of the external connection terminals 11A is four, but the present invention is not limited to this. Further, in the above-described embodiment, the bracket 12 is configured to engage with the engagement protrusion 13C formed on the inner wall of the electric connection box 13. However, other engagement means may be used. The arrangement position can also be appropriately changed. Further, in the above-described embodiment, the bus bar fixing structure inserted in the vertical direction has been described. However, the present invention can be applied to a fixing structure inserted in the horizontal direction.

[0018]

As is apparent from the above description, according to the first aspect of the present invention, since the structure of the electric connection box is simple, there is an effect that the formability of the electric connection box is facilitated. . In addition, since it is only necessary to arrange the external connection terminals in the terminal accommodating gaps, there is an effect that the assembling work can be performed smoothly without causing deformation on the bus bar side.

According to the second aspect of the present invention, it is only necessary to perform a simple operation of inserting the bus bar into the groove, and there is an effect that the assemblability is further simplified.

According to the third aspect of the present invention, since the terminal accommodating space of the electric connection box has a structure that can be isolated only by the partition, the operation of inserting the external connection terminal of the bus bar into the terminal accommodating cavity from below can be easily performed. Has the effect of doing

According to the fourth aspect of the present invention, there is an effect that a bus bar fixing structure having high mechanical strength is obtained, and deformation of the bus bar can be suppressed, so that a highly reliable electric connection box can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing a first embodiment of a bus bar fixing structure according to the present invention.

FIG. 2 is an exploded perspective view of the first embodiment.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is an exploded perspective view showing a conventional bus bar fixing structure.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Bus bar 11A Terminal for external connection 11B Bending part 11C Base 12 Bracket 12A Groove 12B Engagement part 13 Electric connection box 13A Terminal accommodating space 13B Partition wall 13C Engagement projection

Claims (4)

[Claims] 1. A bus bar and a terminal receiving space vertically penetrating therein, into which an external connection terminal of the bus bar is inserted and arranged, is formed at an upper portion, and a base portion of the bus bar is inserted into a lower portion.
An electric connection box in which a base accommodation space to be arranged is formed, and a bracket made of an insulating material for holding the bus bar along the base of the bus bar, wherein the bracket and the electric connection box are engaged with each other. A bus bar fixing structure characterized by being fixed. 2. The bus bar fixing structure according to claim 1, wherein said bus bar is inserted into a groove formed in said bracket. 3. The bus bar according to claim 1, wherein the electric connection box is formed with the terminal accommodating space in which an upper portion of a space penetrating vertically is isolated only by a partition wall. Fixed structure. 4. The bus bar according to claim 1, wherein said bus bar is formed by being bent in a substantially L-shape.
The busbar fixing structure according to any one of the above.