JP2001155798A - Terminal fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide terminal fixing structure that can simply be attached. SOLUTION: Power supply connecting terminals 33 include terminal bodies 32 and wires 31. A leading end of the terminal body 32 bent in L shape in formed with a bolt though hole 38, and a pressed piece 36 is provided at a base end of the terminal body 32 and connected with an wire 31. The power supply connecting terminals 33 are inserted and fixed in a cover 21, and inserting members 24 are provided at sides of the cover 21. The power supply connecting terminals 33 are slid in width direction of the terminal body 32 by the inserting members 24 and then inserted into the cover 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal fixing structure.

[0002]

2. Description of the Related Art Conventionally, a box housing an electric circuit of an automobile is provided with a junction box, a relay box, a fusible link box, an electric control unit, and the like. A cover is provided on the box, and a power supply connection terminal is attached to the cover.

As shown in FIGS. 5 and 6, the power supply connection terminal 41 is formed by bending a terminal body 42 made of a metal piece into a substantially L-shape. A bolt insertion hole 44 is formed in the distal end portion 43 of the terminal main body 42. An electric wire connection portion 46 is formed at the base end portion 45 of the terminal main body 42. An electric wire 47 is connected to the electric wire connection portion 46. In order to attach the power supply connection terminal 41 to a cover 48 provided in a box (not shown), as shown in FIG.
Insert from below. Next, the power supply connection terminal 41 is connected to the arrow A.
Rotate in one direction. Then, by winding the electric wire 47 with a tape 49, the power supply connection terminal 41 is
Fixed to

[0004]

However, in order to fix the power supply connection terminal 41 to the cover 48, the power supply connection terminal 41 had to be inserted from below the cover 48 and rotated, so that workability was poor. There was a problem. Further, since the cover 48 covers only one side surface of the terminal main body 42, there is a high possibility that water enters and current leaks.

The present invention has been made in view of the above problems, and a first object of the present invention is to provide a terminal fixing structure that can be easily attached. A second object is to provide a terminal fixing structure that can enhance waterproofness.

[0006]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a bolt insertion hole is formed at a tip end of a metal piece bent substantially in an L shape, and In a structure in which a terminal main body having an electric wire connection portion formed at an end portion and a power supply connection terminal including an electric wire connected to the electric wire connection portion are inserted and fixed in a cover provided in a box body, the cover The gist of the present invention is that an insertion opening for slidingly inserting the power supply connection terminal in the terminal width direction is provided at a side portion of the power supply connection terminal.

[0007] In the invention described in claim 2, the cover is provided in a region closer to the base end than the bent portion of the metal piece.
The gist is that it is formed so as to cover the terminal body from the front and back.

In the invention according to the third aspect, an engaging projection for fixing the terminal body and an engaging projection for fixing the electric wire are provided near the insertion opening of the cover. The gist is that

The "action" of the present invention will be described below. According to the first aspect of the present invention, the power supply connection terminal is slid and inserted through the insertion hole provided on the side of the cover, so that the power supply connection terminal is fixed in a state of being inserted into the cover. Therefore, the power connection terminal can be easily attached to the cover.

According to the second aspect of the present invention, the front and back of the terminal body are covered with the cover in a region closer to the base end than the bent portion of the terminal body. Therefore, since water does not easily enter the cover, current does not easily leak. In addition, since the cover covers the power supply terminal more, the power supply terminal is less likely to be damaged.

According to the third aspect of the present invention, the power supply connection terminal is fixed to the cover by hooking each of the terminal body and the electric wire on the engaging projection. Therefore, the power supply connection terminal can be securely fixed to the cover.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an electric connection box embodying a terminal fixing structure of the present invention will be described below in detail with reference to FIGS.

As shown in FIG. 1, a box 11 made of a synthetic resin constituting the electric connection box has a substantially rectangular parallelepiped shape.
An electric component (not shown) is housed inside the box 11. A substantially U-shaped concave portion 13 is formed on one side wall of the box body 11 in plan view. Here, the portion surrounded by the concave portion 13 is the cover accommodating portion 12. On one side surface of the concave portion 13, a locked portion 14 is formed, and a fitting hole (not shown) is provided.

On the upper surface 11a of the box 11, a bolt (not shown) and a plurality of relay mounting portions 11b are formed. The bolt protrudes upward near the cover accommodating portion 12. A bus bar (not shown) is housed inside the box 11, and the bolt is electrically connected to a part of the bus bar. Further, a relay 11c is mounted on each relay mounting portion 11b.

As shown in FIGS. 1 and 2, a cover 21 formed separately is slidably housed in the cover housing 12 from above the box 11. The cover 21 is formed of a synthetic resin. Cover 21
Has a terminal body protection part 22 and an electric wire protection part 23. On one side surface of the cover 21, an insertion port 24 is provided from the terminal body protection part 22 to the wire protection part 23.
The cover 21 has a substantially U-shaped cross section.

The terminal body protection section 22 has a length of about three fifths of the cover 21. The length of the terminal body protection portion 22 is the same as the height of the cover housing portion 12. Also, the width of the terminal main body protection part 22 is the same as that of the cover housing part 1.
It is the same size as the width of 2. Terminal body protection section 2
The outer surface 25 of 2 is formed so as to be flush with the side wall portion of the box 11. The outer surface 25 has a cover 2
A guide plate 26 is provided to be used when the cover 1 is housed in the cover housing 12. The guide plate 26 is formed in a plate shape, and is formed to be larger than the width of the terminal body protection portion 22.

As shown in FIGS. 2 and 3, a locking portion 27 is provided at a position corresponding to the concave portion 13 at the upper end of the terminal body protection portion 22. The locking portion 27 is formed in a tubular shape, and is formed in a substantially rectangular cross section. A fitting protrusion 28 is provided on the inner surface of the locking portion 27. The fitting projection 28 is fitted in the fitting hole provided in the recess 13. A terminal engaging projection 29 is provided at the upper end of the insertion slot 24 in the cover 21. The terminal engaging projection 29 is formed integrally with the cover 21.

The wire protection section 23 of the cover 21 is connected to the lower end of the terminal body protection section 22. Wire protection part 2
3 has a length of about two-fifths of the cover 21. The wire protection portion 23 is formed to have a width approximately half that of the terminal body protection portion 22. Also, as shown in FIG. 2 and FIG.
In the position corresponding to the upper end of the wire protection part 23 in FIG.
An electric wire engaging projection 30 is provided. Wire engaging projection 30
Are formed integrally with the cover 21.

By the way, as shown in FIG.
Inside, a power supply connection terminal 33 is accommodated via the insertion port 24. The power supply connection terminal 33 includes a terminal body 32 and an electric wire 31. A terminal main body 32 made of a metal piece is attached to the tip of the electric wire 31. The terminal body 32 is bent in a substantially L-shape. Terminal body 32
Has a plate-shaped bent portion 34, a base end portion 35, and a crimping piece 36 as an electric wire connection portion. Here, the base end 35 is perpendicular to the bent portion 34. The crimping piece 36 is provided at the base end 35. The crimping piece 36 includes the electric wire 31
Is connected. Therefore, the electric wire 31 is electrically connected to the terminal main body 32 by being crimped to the crimping piece 36. In addition, a bolt insertion hole 38 is provided through the distal end portion 37 of the bent portion 34. The bolt (not shown) is inserted through the bolt insertion hole 38, and a nut (not shown) is screwed into the bolt. Thereby, the power supply connection terminal 33 is connected to the bolt. The other end of the electric wire 31 is connected to a power source such as a battery, and power is supplied to the inside of the box 11 via the electric wire 31.

On the front and back sides of the terminal body 32, the region from the base end portion 35 side of the bent portion 34 to the base end portion 35, the crimping piece 36 and the crimping piece 36 side of the electric wire 31 is the cover 2.
Covered by one. In this case, the terminal engaging projection 29 is engaged with one side end of the bent portion 34 of the terminal main body 32. The electric wire engaging projection 30 is engaged with the crimping piece 36 of the electric wire 31.

Next, a method of attaching the power supply connection terminal 33 to the cover 21 will be described below. As shown in FIG. 2, the power supply connection terminal 33 is slid from the side surface of the cover 21 in the width direction of the terminal body 32 and inserted. In this case, the terminal body 32
The power supply connection terminal 33 is pressed in the width direction of the terminal body 32 in a state where one side end of the power supply connection terminal is aligned with the opening end of the insertion port 24. Then, the terminal engaging projection 29 is engaged with the terminal body 32, and the wire engaging projection 30 is engaged with the electric wire 31. Accordingly, the terminal main body 32 is fixed by the terminal engaging projection 29, and the electric wire 31 is fixed by the electric wire engaging projection 30.

Therefore, according to the present embodiment, the following effects can be obtained. (1) The power supply connection terminal 33 is easily inserted into the cover 21 by being slidably inserted in the width direction of the terminal main body 32 through the insertion port 24 provided on the side of the cover 21. In addition, the insertion port 24 is arranged in a place where it is easily visible. Therefore, workability when attaching the power supply connection terminal 33 to the cover 21 can be improved. Further, according to this configuration, since the power supply connection terminal 33 can be attached by sliding in the width direction, the electric wire 3
There is no need to forcibly bend the wire 1 and stress is not easily applied to the electric wire 31. Therefore, this also improves workability at the time of attachment.

(2) The front and back of the terminal body 32 are covered with the cover 21 in a region closer to the base end portion 35 than the bent portion 34 of the terminal body 32. Therefore, the only part where water enters the cover 21 is the insertion port 24. Therefore, water does not easily enter the cover 21 and current leaks less. Further, since the cover 21 covers a larger portion of the power supply connection terminal 33, the possibility that a direct impact is applied to the power supply connection terminal 33 is reduced. Therefore, the power supply connection terminal 33
Is less likely to be damaged.

(3) The power supply connection terminal 33 is fixed to the cover 21 by hooking the terminal body 32 on the terminal engagement projection 29 and hooking the electric wire 31 on the wire engagement projection 30. For this reason, the power supply connection terminal 33 is reliably prevented from being detached from the cover 21 by the engagement action provided by both the terminal engagement projection 29 and the wire engagement projection 30. Therefore, the power supply connection terminal 33 can be securely fixed to the cover 21. Further, it is unnecessary to wind the electric wire 31 with the tape 49 or the like shown in the related art. Therefore, workability when attaching the power supply connection terminal 33 to the cover 21 can be improved.

(4) The box body 11 is provided with a cover accommodating portion 12 for slidingly accommodating a cover 21 formed as a separate body. A guide plate 26 used when the cover 21 is housed in the cover housing 12 is provided on the back surface of the cover 21. Therefore, the guide plate 26 and the box 1
The cover 21 can be inserted into the cover accommodating portion 12 while sliding with the side wall portion 1. Therefore, the cover 21 can be smoothly attached to the box 11.

(5) The terminal engaging projection 29 and the wire engaging projection 30 are formed integrally with the cover 21. Therefore, the number of parts is reduced, and the manufacturing cost of the cover 21 can be reduced.

The embodiment of the present invention may be modified as follows. In the above-described embodiment, the terminal engagement protrusion 29 for fixing the terminal body 32 and the wire engagement protrusion 30 for fixing the electric wire 31 are provided near the insertion opening 24 in the cover 21. I was On the other hand, the terminal engaging projection 29 may be omitted. Alternatively, the wire engaging projection 30 may be omitted. Alternatively, both the terminal engaging protrusion 29 and the wire engaging protrusion 30 may be omitted.

In the above-described embodiment, the cover 21 is formed so as to cover the terminal body 32 from the front and back in the region closer to the base end than the bent portion 34 of the power supply connection terminal 33. On the other hand, the cover 21 may cover the front and back surfaces of the terminal main body 32 in a state where the bolt insertion holes 38 are exposed, even in a region on the distal end side of the bent portion 34 of the power supply connection terminal 33. With this configuration, the cover 21
This makes it difficult for water to enter the inside, and the possibility of current leakage can be further reduced. Also, the power connection terminal 33
Damage that occurs when a direct impact is applied to the vehicle is more reliably prevented.

In the above-described embodiment, the terminal engaging projection 29 and the wire engaging projection 30 are formed integrally with the cover 21. On the other hand, the terminal engaging protrusion 29 and the electric wire engaging protrusion 30 may be formed separately from the cover 21.

In the above embodiment, the cover 21 has a substantially U-shaped cross section. On the other hand, the cover 21
May be formed in another shape such as a substantially U-shaped cross section. In the above embodiment, the box body 11 is provided with the cover accommodating portion 12 for slidingly accommodating the cover 21 formed as a separate body. A guide plate 26 used when the cover 21 is housed in the cover housing 12 is provided on the back surface of the cover 21. However, the guide plate 26
May not necessarily be provided.

Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the above-described embodiments will be enumerated below together with their effects. (1) In the above (1) to (3), the box body is provided with a cover accommodating portion for slidingly accommodating a cover formed as a separate body, and the cover accommodating portion is provided on the back surface of the cover. A terminal fixing structure provided with a guide plate used when accommodating the terminal. Therefore, according to the technical idea (1), the cover can be smoothly attached to the box.

(2) The terminal fixing structure according to any one of claims 1 to 3, wherein the cover has a substantially U-shaped cross section. (3) In claim 1 or 2, an engaging projection for fixing at least one of the terminal body and the electric wire is provided near the insertion opening of the cover. Terminal fixing structure.

(4) The terminal fixing structure according to claim 3, wherein the engaging projection is formed integrally with the cover. Therefore, according to the technical idea (4), the number of parts is reduced, and the manufacturing cost of the cover can be reduced.

[0034]

As described above, according to the first aspect of the present invention, the power supply connection terminal can be easily attached to the cover.

According to the second aspect of the present invention, since it is difficult for water to enter the cover, it is difficult for current to leak. Further, the power supply connection terminal is less likely to be damaged. Claim 3
According to the invention described in (1), the power supply connection terminal can be securely fixed to the cover.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which a cover is attached to a box body in an electric connection box of the present embodiment.

FIG. 2 is an overall perspective view showing a cover and a power supply connection terminal.

FIG. 3 is a partial sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a partial sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is a top view of a cover according to the related art.

FIG. 6 is an overall sectional view of the cover taken along line 6-6 in FIG. 5;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Box body, 21 ... Cover, 24 ... Insertion port, 29 ... Terminal engaging convex part as an engaging convex part, 30 ... Wire engaging convex part as an engaging convex part, 31 ... Electric wire, 32 ... Metal piece 33, a power supply connection terminal, 34, a bent portion, 35, a base end portion, 36, a crimping piece as an electric wire connection portion, 37, a distal end portion,
38 ... bolt insertion hole.

Claims (3)

[Claims] 1. A terminal body having a bolt insertion hole formed at a distal end of a metal piece bent in a substantially L-shape and a wire connection portion formed at a base end, and connected to the wire connection portion. In a structure in which a power supply connection terminal made of an electric wire is inserted and fixed in a cover provided in a box, an insertion for slidingly inserting the power supply connection terminal in a terminal width direction into a side portion of the cover. Terminal fixing structure characterized by having an opening. 2. The terminal according to claim 1, wherein the cover is formed so as to cover the terminal main body from the front and back in a region closer to the base end than the bent portion of the metal piece. Terminal fixing structure. 3. An engaging projection for fixing the terminal body and an engaging projection for fixing the electric wire are provided near the insertion opening of the cover. The terminal fixing structure according to claim 1 or 2.