JP2014135130A - Structure for connecting electric component and electric wire with terminal, electric component installation block, and electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for connecting an electric component and an electric wire with a terminal that can be made small without complicating an assembling operation, an electric component installation block, and an electric connection box.SOLUTION: In a structure 1 for connecting an electric component and an electric wire with a terminal, a projection terminal 210 projecting from a body outer surface 200a of an electric component 200 is connected to an electric wire 10 with a terminal provided with a terminal metal fitting 20 connected to the projection terminal 210 at a terminal part We of an electric wire W. The terminal metal fitting 20 has: a component terminal connection part 30 that is shaped to extend linearly and serves as a portion to which the projection terminal 210 is connected; and an electric wire connecting and fixing part 40 to which the terminal part We of the electric wire W is electrically connected and fixed, so that the terminal part We of the electric wire W is overlapped on at least a tip of the projection terminal 210 arranged on the component terminal connection part 30 in a direction orthogonal to a projection direction of the projection terminal 210, and the terminal part We of the electric wire W is fixed to an outer face of the component terminal connection part 30.

Description

  The present invention relates to a connection structure between an electrical component and a terminal-attached electric wire, an electrical component installation block, and an electrical junction box.

Conventionally, in order to distribute electric power or electric signals from a power source to a plurality of electric components mounted on an automobile or the like, an electric junction box provided with a collection of electric parts such as relays and fuses is used as a power source or a control circuit. And the electrical component.
Such an electrical junction box is a terminal in which a protruding terminal which is a terminal protruding from the outer surface of the main body of an electrical component such as a relay or a fuse, and a terminal fitting connected to the protruding terminal are provided at the terminal portion of the electric wire. A connection structure of an electrical component and a terminal-attached electric wire, which are connected in a terminal holding / accommodating portion in which a terminal wire is held and accommodated, is incorporated.

The connection structure between the electrical component and the electric wire with terminal is incorporated into the electrical junction box in units of blocks (hereinafter referred to as electrical component installation blocks), for example, for each type of electrical component. Such an electrical component installation block is provided with a connection structure between the above-described electrical component and the terminal-attached electric wire on the block body constituting the body.
More specifically, the electrical component is placed on the outer surface of the block body with the protruding terminal inserted into the terminal insertion port formed on the outer surface of the block body on one end side, and the terminal of the electric wire with the terminal The metal fittings are housed in the terminal holding and accommodating portion in which the terminal metal fitting space is formed from the terminal metal fitting insertion port formed on the outer surface on the other end side of the block body, so that the terminal metal wire and the terminal metal fitting are projected. The terminal is connected.

  By the way, in recent years, it is important to keep the size of the electrical component installation block small in order to meet the demand for miniaturization of the electrical junction box. This can be achieved by suppressing the dimension in the protruding direction of the protruding terminal of the connection structure between the electric component and the electric wire with terminal. For example, in Patent Document 1, the terminal fitting of the terminal-attached electric wire is bent, and the electric wire connection fixing portion that is a portion to which the terminal portion of the electric wire of the terminal fitting is connected is arranged next to the protruding terminal. A relay block (electrical component installation block) that achieves miniaturization is described.

JP 2004-40968 A

  However, in the relay block described in Patent Document 1, since the accommodation space of the terminal holding and accommodating portion is bent corresponding to the bent shape of the terminal fitting when the terminal fitting is bent, the bent terminal holding and accommodating portion is bent. It is necessary to set the terminal fitting in the housing space of the part, and as a result, there has been a problem that the assembling work of the connection structure between the electric component and the electric wire with terminal becomes complicated.

  The present invention has been made in view of the above, and it is possible to reduce the size without complicating the assembling work. The connection structure between the electric component and the electric wire with terminal, the electric component installation block, and the electric connection box The purpose is to provide.

  In order to solve the above-described problems and achieve the object, a connection structure between an electric component and a terminal-attached electric wire according to claim 1 of the present invention includes a protruding terminal that is a terminal protruding from the outer surface of the main body of the electric component. In the connection structure of the electric component with the terminal and the electric wire with the terminal connected to the terminal fitting connected to the protruding terminal and the electric wire with the terminal, the terminal fitting extends linearly. A component terminal connecting portion that is shaped and a portion to which the protruding terminal is connected, and a terminal portion of the electric wire is at least a tip portion of the protruding terminal disposed at the component terminal connecting portion. An electric wire connection fixing portion that is electrically connected and fixed so as to overlap in a direction orthogonal to the protruding direction and to be fixed to the outer surface of the component terminal connection portion. .

  In the connection structure between an electric component and a terminal-attached electric wire according to a second aspect of the present invention, in the above invention, the electric wire connection fixing portion is formed by welding or adhering an exposed conductor portion of the end portion of the electric wire. It has an exposed conductor fixing part fixed by wearing, and a covering fixing part to which an insulating covering part covered with an insulating material of the terminal part of the electric wire is fixed.

  According to a third aspect of the present invention, there is provided the connection structure between the electric component and the terminal-attached electric wire according to the above-described invention, wherein the electric wire connection fixing portion has an end portion of the electric wire over almost the entire protruding direction of the protruding terminal. The electric wire is fixed so as to wrap.

  In order to solve the above-described problems and achieve the object, an electrical component installation block according to claim 4 of the present invention is such that electrical components are placed on the outer surface of the block body, and terminals are provided inside the block body. In the electric component installation block provided with a terminal holding and holding portion for holding and holding the terminal fitting of the electric wire, the connection structure between the electric component according to claim 1, 2, or 3 and the electric wire with the terminal is incorporated. It is characterized by.

  In order to solve the above-mentioned problems and achieve the object, an electrical junction box according to claim 5 of the present invention is an electrical junction box in which electrical components are aggregated to distribute power or electrical signals. The connection structure of the electric component according to claim 1, 2, or 3 and the electric wire with terminal is incorporated.

  In the connection structure between an electrical component and a terminal-attached electric wire according to claim 1 of the present invention, since the terminal fitting is formed linearly without being bent, the terminal fitting has a predetermined accommodation space. When accommodated in the terminal holding / accommodating portion, the accommodation space extends linearly corresponding to the shape of the terminal fitting, so that the terminal fitting is easily inserted while being linearly moved into the terminal holding / accommodating portion. And the dimension in the protrusion direction of the said protrusion terminal is made small by being fixed to the said wire connection fixing | fixed part so that the terminal part of the said electric wire may overlap with the said protrusion terminal in the direction orthogonal to the protrusion direction of the said protrusion terminal. Since it can suppress, it can reduce in size, without complicating an assembly | attachment operation | work.

  Further, in the connection structure between the electric component and the electric wire with a terminal according to claim 2 of the present invention, the exposed conductor portion does not need to be fixed by a crimping piece provided on the terminal fitting itself, so the exposed By suppressing the size of the conductor fixing portion in the protruding direction of the protruding terminal, the covering fixing portion can be overlapped with the protruding terminal at a long distance. Therefore, the terminal fitting having the covering fixing portion is used. Even in such a case, since the dimension of the protruding terminal in the protruding direction can be kept small, the size can be reduced without complicating the assembling work.

  According to a third aspect of the present invention, there is provided a connection structure between an electric component and a terminal-attached electric wire, wherein the electric wire connection fixing portion overlaps the end portion of the electric wire in substantially the entire protruding direction of the protruding terminal. Since the terminal portion of the electric wire is overlapped with the protruding terminal by a distance as long as possible, the effect of further miniaturization can be enhanced.

  Moreover, since the electrical component installation block which concerns on Claim 4 of this invention is formed by incorporating the connection structure of the said electrical component and the electric wire with a terminal, the effect similar to the connection structure of the said electrical component and an electric wire with a terminal is obtained. Can play.

  Moreover, since the connection structure of the said electrical component and the electric wire with a terminal is integrated, the electrical connection box which concerns on Claim 5 of this invention has the same effect as the connection structure 1 of the said electrical component and an electric wire with a terminal. Can play.

FIG. 1 is a sectional view of an essential part of an electrical junction box according to an embodiment of the present invention. FIG. 2 is a perspective view of the electrical component installation block shown in FIG. FIG. 3 is a top view of the electric component installation block shown in FIG. 4 is a cross-sectional view taken along line AA of the electrical component installation block shown in FIG. FIG. 5 is a front view of the electric wire with terminal shown in FIG. 6 is a cross-sectional view taken along line AA of the electric wire with terminal shown in FIG. 7 is an enlarged perspective view of the terminal fitting shown in FIG. FIG. 8 is an enlarged perspective view of the relay shown in FIG. FIG. 9 is a diagram illustrating an assembling procedure of the connection structure between the electrical component and the electric wire with terminal. FIG. 10 is a perspective view of a terminal-attached electric wire used in a connection structure between an electric component and a terminal-attached electric wire according to a modification of the embodiment of the present invention. 11 is an enlarged perspective view of the terminal fitting shown in FIG.

Hereinafter, with reference to the drawings, preferred embodiments of a connection structure between an electrical component and a terminal-attached electric wire, an electrical component installation block, and an electrical junction box according to the present invention will be described in detail.
FIG. 1 is a cross-sectional view of a main part of an electrical junction box 100 according to an embodiment of the present invention. FIG. 2 is a perspective view of the electrical component installation block 70 shown in FIG. FIG. 3 is a top view of the electrical component installation block 70 shown in FIG.
3 shows a state in which one of the two relays 200 is removed from the block main body 71.
4 is a cross-sectional view taken along line AA of the electrical component installation block 70 shown in FIG. FIG. 5 is a front view of the terminal-attached electric wire 10 shown in FIG. FIG. 6 is a cross-sectional view taken along line AA of the terminal-attached electric wire 10 shown in FIG.
In addition, in FIG. 4, the protruding terminal 210 in the connection completion state with the electric wire with terminal 10 is virtually indicated by a broken line.
FIG. 7 is an enlarged perspective view of the terminal fitting 20 shown in FIG. FIG. 8 is an enlarged perspective view of the relay 200 shown in FIG.
An electrical junction box 100 according to an embodiment of the present invention is provided with a collection of electrical components such as relays and fuses in order to distribute electric power or electrical signals to a plurality of electrical components (not shown) mounted on an automobile. Is.

  The electrical junction box 100 includes an electrical component installation block 70 that is detachably incorporated in the electrical junction box 100 in units of blocks. A protruding terminal 210 (see FIG. 8) that is a terminal protruding from the main body outer surface 200a of the relay 200 as the electric component 200 with respect to the electric component installation block 70, and the terminal fitting 20 connected to the protruding terminal 210 are electric wires. A connection structure 1 for connecting an electric component with a terminal and an electric wire with a terminal 10 provided at a terminal portion We of the W and an electric wire with a terminal is provided.

As shown in FIG. 1, the electric component installation block 70 is configured such that a block main body 71 serving as a main body thereof is held in a storage container 110 that constitutes an outline of the electric connection box 100.
As shown in FIGS. 2 and 3, the block main body 71 has two rectangular parallelepiped parts made of synthetic resin integrally connected, and one relay 200 is placed on the outer surface of each rectangular parallelepiped part. ing.
In addition, although the electrical component installation block 70 illustrated what the block main body 71 connected two rectangular parallelepiped parts integrally, it is not restricted to this, The relay as the electrical component 200 on the outer surface 71a of the block main body 71 is shown. As long as 200 is mounted and the terminal holding accommodation part 72 in which the terminal metal fitting 20 of the electric wire 10 with a terminal is accommodated is provided in the block main body 71, other shapes may be sufficient. For example, the block main body 71 may have a rectangular parallelepiped shape.

  Further, an elastic locking piece 73 protrudes from the side surface of the block main body 71, and the elastic locking piece 73 is locked to a not-shown locked portion of the storage container 110, so that the block main body 71 is accommodated. It is locked in the container 110.

As shown in FIG. 4, each terminal holding / accommodating portion 72 is engaged with a terminal fitting 20 accommodated in the terminal holding / accommodating portion 72 at a predetermined position in the terminal holding / accommodating portion 72 by a locking portion such as a lance (not shown). It has come to be stopped.
Each terminal holding and accommodating part 72 has an accommodating space that extends linearly corresponding to the shape of the terminal fitting 20.

Next, the connection structure 1 between the electrical component and the electric wire with terminal will be described in more detail.
In the connection structure 1 between the electrical component and the electric wire with terminal, the protruding terminal 210 which is a terminal protruding from the outer surface 200a of the relay 200 and the terminal fitting 20 connected to the protruding terminal 210 are connected to the terminal portion We of the electric wire W. The provided electric wire with terminal 10 is connected in a terminal holding / accommodating portion 72 in which the terminal fitting 20 is held and accommodated.

The terminal fitting 20 is formed by bending a plate-like metal member into a predetermined shape and is fixed to the terminal portion We of the electric wire W.
This terminal fitting has a linearly extending shape, and a wire terminal connection in which the component terminal connection portion 30 that is a portion to which the protruding terminal 210 is connected and the terminal portion We of the electric wire 10 of the terminal with electric wire are electrically connected and fixed. And a fixing portion 40.

  The component terminal connecting portion 30 has a rectangular tube shape, and an elastic contact piece 34 protrudes from the inner surface of one wall 31 of the two opposing walls 31 and 32, and the elastic contact piece 34 faces the protruding terminal 210. The protruding terminal 210 is contacted so as to be elastically biased. For this reason, the protruding terminal 210 is sandwiched between the elastic contact piece 34 and the inner surface of the other wall 32.

  As shown in FIG. 6, the electric wire connection fixing portion 40 is a direction in which the terminal portion We of the electric wire W is orthogonal to the protruding direction of the protruding terminal 210 with respect to at least the distal end portion of the protruding terminal 210 disposed in the component terminal connecting portion 30 This is a portion that is electrically connected and fixed so as to overlap (see arrow A in FIG. 6) and to be fixed to the outer surface 30 a of the component terminal connecting portion 30.

More specifically, the wire connection fixing part 40 is an outer surface of the wall 32 on the side where the protruding terminal 210 is contacted by the elastic contact piece 34 among the two opposing walls 31 and 32 of the component terminal connection part 30 described above. The terminal portion We of the electric wire W and the protruding terminal 210 overlap with each other in a direction orthogonal to the protruding direction of the protruding terminal 210 with the wall 32 interposed therebetween.
In this embodiment, the electric wire connection fixing portion 40 is configured such that the electric wire W is fixed so that the terminal portion We of the electric wire W overlaps almost the entire region in the protruding direction of the protruding terminal 210.

  The wire connection fixing portion 40 is covered with an exposed conductor fixing portion 50 to which the exposed conductor portion W1 of the end portion We of the electric wire W is fixed by welding or adhesion, and an insulating material of the end portion We of the electric wire W. And a covering fixing portion 60 to which the insulated insulating covering portion W2 is fixed.

  The covering fixing portion 60 is a so-called insulation barrel, and is crimped so that a pair of crimping pieces 61 erected in a single piece from both side edges of the wire connection fixing portion 40 covers the insulating covering portion W2 of the electric wire W. Part.

  The exposed conductor fixing part 50 is exemplified by the conductor part W1 fixed by welding or adhesion. However, the exposed conductor fixing part 50 is not limited to this, and the conductor part W1 is fixed by a crimp piece or solder similar to the covering fixing part 60. You may make it fix.

In such a connection structure 1 between an electric component and a terminal-attached electric wire, the size of the protruding terminal 210 in the protruding direction can be reduced by the size of the electric wire W overlapped with the protruding terminal 210.
In addition, the terminal fitting 20 formed linearly without being bent is easily inserted while being linearly moved into the terminal holding / accommodating portion 72 having an accommodation space extending linearly corresponding to the shape of the terminal fitting 20. It has become so.

Here, the assembly procedure of the connection structure 1 between the electrical component and the electric wire with terminal will be described with reference to FIG. FIG. 9 is a diagram illustrating an assembling procedure of the connection structure 1 between the electrical component and the terminal-attached electric wire.
First, the worker attaches each electric wire W to the terminal fitting 20 (see FIG. 9A). In this operation, the exposed conductor portion W1 of the end portion We of the electric wire W is welded or adhered to the exposed conductor fixing portion using an ultrasonic horn or the like, and the insulating coating portion W2 of the electric wire W is covered. The fixing part 60 is crimped.

  Thereafter, the operator accommodates the terminal fitting 20 of each terminal-attached electric wire 10 in each terminal holding and accommodating portion 72 of the electric component installation block 70 (see FIG. 9B). In this operation, the terminal fitting 20 that is linearly formed without being bent is inserted while being linearly moved into the terminal holding / accommodating portion 72 having an accommodation space that extends linearly corresponding to the shape of the terminal fitting 20. The

Finally, the worker completes the assembly work of the connection structure 1 between the electrical component and the terminal-attached electric wire by attaching each relay 200 to the electrical component installation block 70 (see FIG. 9C). In this operation, the protruding terminal 210 of the relay 200 is inserted into the terminal holding / accommodating portion 72 to a position where it overlaps the terminal portion We of the electric wire W in a direction orthogonal to the protruding direction.
In addition, by assembling the electrical component installation block 70 in which the assembly of the connection structure 1 between the electrical component and the terminal-attached electric wire is completed to the housing container 110 of the electrical junction box 100, the electrical component and the terminal-attached electric wire to the electrical junction box 100 Assembling of the connection structure 1 is completed.

  In the connection structure 1 between the electric component and the terminal-attached electric wire according to the embodiment of the present invention, since the terminal fitting 20 is formed linearly without being bent, the terminal fitting 20 has a predetermined accommodation space. When accommodated in the holding and accommodating portion 72, the accommodation space extends linearly corresponding to the shape of the terminal fitting 20, so that the terminal fitting 20 is easily inserted while being linearly moved into the terminal holding and accommodating portion 72. In addition, the dimension of the protruding terminal 210 in the protruding direction is fixed by being fixed to the wire connection fixing portion 40 so that the terminal portion We of the electric wire W overlaps the protruding terminal 210 in a direction orthogonal to the protruding direction of the protruding terminal 210. Therefore, it is possible to reduce the size without complicating the assembling work.

  Further, in the connection structure 1 between the electric component and the terminal-attached electric wire according to the embodiment of the present invention, the exposed conductor portion W1 does not need to be fixed by the crimping piece provided on the terminal fitting 20 itself. Since the covering fixing portion 60 can be overlapped with the protruding terminal 210 at a longer distance by suppressing the dimension of the fixing portion 50 in the protruding direction of the protruding terminal 210, the terminal fitting 20 having the covering fixing portion 60 is provided. Even if it is used, since the dimension in the protruding direction of the protruding terminal 210 can be kept small, the size can be reduced without complicating the assembling work.

  Further, in the connection structure 1 between the electric component and the terminal-attached electric wire according to the embodiment of the present invention, the electric wire connection fixing portion 40 has the electric wire W so that the terminal portion We of the electric wire W overlaps almost the entire protruding direction of the protruding terminal 210. Since W is fixed, the terminal portion We of the electric wire W is overlapped with the protruding terminal 210 at a distance as long as possible, so that the effect of further miniaturization can be enhanced.

  Moreover, since the electrical component installation block 70 according to the embodiment of the present invention has the connection structure 1 between the electrical component and the terminal-attached electric wire, the same effect as the connection structure 1 between the electrical component and the terminal-attached electric wire is obtained. Can play.

  Moreover, since the electrical connection box 100 according to the embodiment of the present invention incorporates the connection structure 1 between the electrical component and the electric wire with terminal, the same effect as the connection structure 1 between the electrical component and the electrical wire with terminal is obtained. be able to.

(Modification)
Next, a modification of the connection structure 1 between the electrical component and the terminal-attached electric wire according to the embodiment of the present invention will be described with reference to FIGS. 10 and 11. FIG. 10 is a perspective view of a terminal-attached electric wire 80 used in the connection structure 2 between the electric component and the terminal-attached electric wire according to a modification of the embodiment of the present invention. FIG. 11 is an enlarged perspective view of the terminal fitting 90 shown in FIG.
The electric wire with terminal 80 used in the connection structure 2 between the electric component of this modification and the electric wire with terminal includes the terminal fitting 90 in place of the terminal fitting 20 and the electric component with terminal and the electric wire with terminal. The connection structure 1 is different.
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

In the terminal fitting 90, the wire connection fixing portion 40 is provided on the outer surface of the wall 33 orthogonal to the wall 32 with which the protruding terminal 210 is contacted by the elastic contact piece 34.
In addition, since the connection structure 2 with the electric wire with a terminal of this modification is formed linearly without the terminal metal fitting 90 being bent, it is the same as the connection structure 1 with the electric wire with a terminal of the embodiment. A terminal holding / accommodating portion (not shown) extends linearly corresponding to the shape of the terminal fitting 90.

  In the connection structure 2 between the electric component and the terminal-attached electric wire according to this modification, the terminal fitting 90 is formed linearly without being bent, and therefore the terminal fitting 90 has a predetermined accommodation space (not shown). When accommodated in the holding and accommodating portion, the accommodation space extends linearly corresponding to the shape of the terminal fitting 90, so that the terminal fitting 90 is easily inserted while being linearly moved into the terminal holding and accommodating portion (not shown). In addition, the dimension of the protruding terminal 210 in the protruding direction is fixed by being fixed to the wire connection fixing portion 40 so that the terminal portion We of the electric wire W overlaps the protruding terminal 210 in a direction orthogonal to the protruding direction of the protruding terminal 210. Therefore, it is possible to reduce the size without complicating the assembling work as in the connection structure 1 between the electric component and the electric wire with terminal in the embodiment.

  In addition, although the connection structure 1 and 2 of the electric component of the Example of this invention and the electric wire with a terminal illustrated what uses the relay 200 as the electric component 200, the electric component 200 is not restricted to the relay 200, but a main body outer surface Other electrical components may be used as long as they are electrical components having projecting terminals 210 that project from 200a. For example, a fuse may be used as the electrical component 200.

  Moreover, the electrical connection box 100 of the Example of this invention illustrates what the connection structure 1 of an electrical component and an electric wire with a terminal is provided in the electrical component installation block 70 separate from the storage container 110 of the electrical connection box 100. However, you may make it the connection structure 1 of an electrical component and an electric wire with a terminal be provided in the storage container 110 itself.

  Moreover, although the connection structure 1 and 2 of the electrical component of the Example of this invention and the electric wire with a terminal illustrated what the terminal metal fittings 20 and 90 have the covering fixing | fixed part 60, it is not restricted to this, A terminal As long as the metal fittings 20 and 90 and the electric wire W are stably fixed, the terminal metal fittings 20 and 90 may have a configuration without the covering fixing portion 60. For example, the end portions of the terminal fittings 20 and 90 on the wire connection side and the insulating coating portion W2 around the end portions may be integrally covered with synthetic resin.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

DESCRIPTION OF SYMBOLS 1, 2 Connection structure of electrical component and electric wire with terminal 10, 80 Electric wire with terminal 20, 90 Terminal fitting 30 Component terminal connection part 30a Outer surface 31, 32, 33 Wall 34 Elastic contact piece 40 Electric wire connection fixing part 50 Exposed conductor fixing Part 60 Covering fixing part 61 Crimping piece 70 Electrical component installation block 71 Block body 71a Outer surface 72 Terminal holding / accommodating part 73 Elastic locking piece 100 Electrical junction box 110 Housing container 200 Relay (electrical part)
200a Main body outer surface 210 Projection terminal W Electric wire W1 Conductor part W2 Insulation coating part We Terminal part

Claims (5)

With electrical parts and terminals, which are connected to projecting terminals, which are terminals projecting from the outer surface of the main body of the electrical parts, and electric wires with terminals in which terminal fittings connected to the projecting terminals are provided at the terminal portions of the electric wires In connection structure with electric wire,
The terminal fitting is
It has a linearly extending shape,
A component terminal connecting portion to be a portion to which the protruding terminal is connected;
The terminal portion of the electric wire overlaps at least the tip end portion of the protruding terminal disposed in the component terminal connecting portion in a direction orthogonal to the protruding direction of the protruding terminal, and the component terminal connecting portion A wire connection fixing portion that is electrically connected and fixed so as to be fixed to the outer surface;
A connection structure between an electrical component and a terminal-attached electric wire, characterized by comprising: The wire connection fixing part is
An exposed conductor fixing portion in which the exposed conductor portion of the end portion of the electric wire is fixed by welding or adhesion; and
A covering fixing portion to which the insulating covering portion covered with the insulating material of the terminal portion of the electric wire is fixed;
The connection structure of the electric component according to claim 1 and the electric wire with terminal. The wire connection fixing part is
4. The connection structure between an electric component and a terminal-attached electric wire according to claim 2, wherein the electric wire is fixed so that a terminal portion of the electric wire overlaps substantially in the entire protruding direction of the protruding terminal. In the electrical component installation block in which an electrical component is placed on the outer surface of the block main body, and a terminal holding housing portion in which the terminal fitting of the electric wire with terminal is held and accommodated inside the block main body,
An electrical component installation block comprising the connection structure of the electrical component according to claim 1, 2 or 3 and a terminal-attached electric wire. In an electrical junction box in which electrical components are aggregated to distribute power or electrical signals,
An electrical connection box comprising a connection structure between the electrical component according to claim 1, 2 or 3 and a terminal-attached electric wire.

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