JP7080563B2 - Electrical wiring block joints, electrical junction boxes and wire harnesses - Google Patents

Description

The present invention relates to electrical wiring block joints, electrical junction boxes and wire harnesses.

Conventionally, an electric connection box including a housing and an electronic component housed in the housing is known (Patent Documents 1 to 5 below). For example, in an electrical junction box, an electric wiring block containing an electronic component is housed in a housing, so that the electronic component is housed in the housing. In this electrical connection box, a plurality of electrical wiring blocks may be housed in one housing, and by joining the electrical wiring blocks to each other, the electronic components of the electrical wiring blocks to be connected are electrically connected to each other. Let me. For example, each electrical wiring block is provided with a plate-shaped bus bar electrically connected to the electronic components accommodated by the block. In this case, the electronic components of the respective electrical wiring blocks are electrically connected to each other by connecting the bus bars of the electrical wiring blocks connected to each other with a connecting member. As the connecting member, for example, a clip that is inserted into the bus bar and sandwiches the bus bar can be considered. For example, Patent Document 6 below discloses a relay bus bar having a leaf spring-shaped clip provided for each bus bar to be connected. The relay bus bar electrically connects the bus bars to be connected to each other by inserting each clip into the bus bar to be connected.

Japanese Unexamined Patent Publication No. 2004-201448 Japanese Unexamined Patent Publication No. 9-308047 Japanese Unexamined Patent Publication No. 2007-129790 Japanese Unexamined Patent Publication No. 2004-166322. Japanese Unexamined Patent Publication No. 2002-315156 Japanese Unexamined Patent Publication No. 2011-172393

By the way, a joint body of a plurality of electric wiring blocks (electrical wiring block joint body) may have a storage chamber for accommodating an electric connection portion and a connection member of each bus bar. In this case, for example, by inserting and inserting a connecting member into the electrical connection portion housed in the accommodation chamber, the respective bus bars are electrically connected to each other. In such a connection structure, it is necessary to insert and insert the connection member into the electrical connection portion while inserting the connection member into the accommodation chamber and confirming the insertion position of the connection member with respect to the electrical connection portion. There is. However, in this connection structure, the insertion position cannot always be visually confirmed, and there is room for improvement from the viewpoint of workability in assembling the connection member.

Therefore, an object of the present invention is to provide an electric wiring block joint, an electric connection box, and a wire harness that can improve the workability of assembling the connection member.

In order to achieve the above object, the electric wiring block joint according to the present invention includes a plurality of electric wiring blocks for electrically connecting an electronic component and a bus bar inward, and two electric wires to be joined to each other. A connection member for electrically connecting the electrical connection portions of the respective bus bars between the wiring blocks is provided. Then, at least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portions and the connection members, and the connection members are the respective electrical connection portions. The accommodation space in which one of the wall surfaces is overlapped with each other and the insertion port for inserting and inserting into the respective electrical connection portions are arranged so as to face each other, and the respective electrical connections accommodated in the accommodation space. The storage chamber has two pressing walls that are sandwiched by applying pressing pressure to the other wall surface of the portion, and a connecting wall that connects the respective pressing walls on the opposite side of the insertion port. The connection member is guided to the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodated electrical connection portions, and the connection member inserted from the insertion port, and the connection member is inserted into the connection member. It is characterized by having an insertion guide structure for inserting and inserting into each of the electrical connection portions from the insertion port.

Here, the inner wall surface of the accommodation chamber is arranged so as to face the first facing wall surface of one of the electrical connection portions facing the other wall surface and the other facing wall surface of the other electrical connection portion. The insertion guide structure has two facing wall surfaces, and the insertion guide structure projects from the first facing wall surface toward the other wall surface of one of the electrical connection portions, and at least the insertion direction of the connection member from the insertion port. The first insertion guide portion extending toward the surface and the second insertion guide portion projecting from the second facing wall surface toward the other wall surface of the other electrical connection portion and facing the first insertion guide portion in the projecting direction. It is desirable to provide at least a second insertion guide portion extending in the insertion direction from the insertion port of the connection member.

Further, the inner wall surface of the accommodation chamber faces one end of the connecting member in a direction orthogonal to the facing arrangement direction of the first and second facing wall surfaces and the insertion direction of the connecting member from the insertion port. The insertion guide structure has a third facing wall surface to be arranged and a fourth facing wall surface facing the other end of the connecting member, and the insertion guide structure allows the connecting member to be inserted from the insertion port into the electrical connection portion. As the third insertion guide portion, which can guide the one end of the connecting member and can lock the one end of the connecting member in the orthogonal direction. 3 It is possible to guide the other end of the connecting member when the connecting member is inserted and inserted into each of the electrical connecting portions from the insertion port by using the facing wall surface, and in the orthogonal direction. It is desirable to use the fourth facing wall surface as the fourth insertion guide portion capable of locking the other end of the connecting member.

Further, the accommodation chamber sandwiches the bus bar that sandwiches each of the electrical connection portions from the other wall surface side in a state where the one wall surface of each of the accommodations is overlapped with each other. It is desirable to have a structure.

Further, in order to achieve the above object, the electrical junction box according to the present invention is provided between an electronic component, a bus bar, and a plurality of electrical wiring blocks for electrically connecting the electronic component and the bus bar inside. It is provided with a connection member for electrically connecting the electric connection portion of each of the bus bars between the two electric wiring blocks to be joined, and a housing for accommodating the plurality of the electric wiring blocks. Then, at least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portions and the connection members, and the connection members are the respective electrical connection portions. The accommodation space in which one of the wall surfaces is overlapped with each other and the insertion port for inserting and inserting into the respective electrical connection portions are arranged so as to face each other, and the respective electrical connections accommodated in the accommodation space. The storage chamber has two pressing walls that are sandwiched by applying pressing pressure to the other wall surface of the portion, and a connecting wall that connects the respective pressing walls on the opposite side of the insertion port. The connection member is guided to the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodated electrical connection portions, and the connection member inserted from the insertion port, and the connection member is inserted into the connection member. It is characterized by having an insertion guide structure for inserting and inserting into each of the electrical connection portions from the insertion port.

Further, in order to achieve the above object, the wire harness according to the present invention has a plurality of electrical wiring blocks for electrically connecting an electronic component, a bus bar, an electric wire, and the electronic component, the bus bar, and the electric wire internally. And, a connection member for electrically connecting the electrical connection portion of each of the bus bars between the two electrical wiring blocks to be joined to each other, and a plurality of the electrical wiring blocks are accommodated and the electric wire is accommodated. It is equipped with a housing that can be pulled out to the outside. Then, at least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portions and the connection members, and the connection members are the respective electrical connection portions. The accommodation space in which one of the wall surfaces is overlapped with each other and the insertion port for inserting and inserting into the respective electrical connection portions are arranged so as to face each other, and the respective electrical connections accommodated in the accommodation space. The storage chamber has two pressing walls that are sandwiched by applying pressing pressure to the other wall surface of the portion, and a connecting wall that connects the respective pressing walls on the opposite side of the insertion port. The connection member is guided to the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodated electrical connection portions, and the connection member inserted from the insertion port, and the connection member is inserted into the connection member. It is characterized by having an insertion guide structure for inserting and inserting into each of the electrical connection portions from the insertion port.

The electrical wiring block joint according to the present invention can guide the connecting member inserted from the insertion port by the insertion guide structure, and insert and insert the connecting member from the insertion port into each electrical connection portion. can. That is, this electrical wiring block joint can suppress the positional deviation between each other when assembling the connecting members to the respective electrical connecting portions, and can improve the assembling workability of the connecting members. Further, since the electric connection box and the wire harness according to the present invention are provided with the electric wiring block joint, the effect of the electric wiring block joint can be similarly obtained.

FIG. 1 is a perspective view showing an electrical wiring block joint, an electrical junction box, and a wire harness according to an embodiment. FIG. 2 is an exploded perspective view of the electrical wiring block joint of the embodiment separated into a first electrical wiring block and a second electrical wiring block. FIG. 3 is a perspective view illustrating the insertion guide structure. FIG. 4 is a top view illustrating an insertion guide structure and a bus bar holding structure. FIG. 5 is a view showing the cross section of the X1-X1 line of FIG. 4 tilted by 90 degrees. FIG. 6 is an exploded perspective view of the first electrical wiring block. FIG. 7 is an exploded perspective view of the second electrical wiring block. FIG. 8 is an exploded perspective view illustrating the insertion guide structure. FIG. 9 is an exploded perspective view illustrating the insertion guide structure. FIG. 10 is a cross-sectional view illustrating the insertion guide structure. FIG. 11 is a perspective view illustrating a bus bar sandwiching structure.

Hereinafter, embodiments of the electrical wiring block joint, the electrical junction box, and the wire harness according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

[Embodiment]
One of the embodiments of the electrical wiring block joint, the electrical junction box, and the wire harness according to the present invention will be described with reference to FIGS. 1 to 11.

Reference numeral 1 in FIGS. 1 and 2 indicates an electric wiring block joint of the present embodiment. Further, the reference numerals JB and reference numeral WH in FIG. 1 refer to the electric connection box of the present embodiment including the electric wiring block joint 1 thereof and the wire harness of the present embodiment including the electric connection box JB, respectively. show.

The electric wiring block joint 1 is one in which a plurality of electric wiring blocks (first electric wiring block 10 and second electric wiring block 20 described later) accommodating electronic components EP are joined (FIGS. 1 and 2). ). Further, the electrical connection box JB is a housing JBa in which a plurality of electrical wiring blocks are housed together with electronic components EP (FIG. 1). At least one electric wiring block joint 1 is housed in the housing JBa. Therefore, in this electrical connection box JB, an electrical wiring block junction or an electrical wiring block different from the electrical wiring block junction 1 may be housed in the housing JBa. The electrical wiring block joint 1 is held by a lock mechanism (not shown) known to the housing JBa. The wire harness WH is a wire (power supply line, signal line, etc.) We that is electrically connected to the electronic component EP of the electrical junction box JB and is pulled out from the inside of the housing JBa to the outside. There is (Fig. 1). The housing JBa in the drawing is a conceptual diagram showing only the outer wall of the frame, and the two openings of the frame are closed by the respective covers.

The electric connection box JB is installed together with the electric wire We as a wire harness WH, for example, in an engine compartment of a vehicle (not shown). In this electrical connection box JB, a connection object (not shown) mounted on the vehicle is electrically connected to the electronic component EP via the electric wire We. For example, in this electrical connection box JB, at least two electric wires We are electrically connected to the electronic component EP, and at least two objects to be connected are electrically connected via the electronic component EP. The electronic component EP refers to, for example, circuit protection components such as relays and fuses, connectors, terminal fittings, and the like. In the present embodiment, electronic devices such as circuit boards and electronic control units (so-called ECUs) are also considered as one form of electronic component EP housed in the housing JBa. Further, the connection target refers to a power source such as a secondary battery, a load such as an electric device (actuator, etc.), a sensor, and the like.

The electric wiring block joint 1 will be specifically described below.

As shown above, the electric wiring block joint 1 is formed by joining a plurality of electric wiring blocks. The electric wiring block accommodates the bus bar in addition to the electronic component EP, and electrically connects the electronic component EP and the bus bar inside. In this electric wiring block joint 1, two electric wiring blocks to be joined to each other are joined, and the bus bars housed in the respective electric wiring blocks are connected to each other to electrically attach each bus bar. Connect to. As will be described in detail later, the electrical wiring block joint 1 includes a connecting member for electrically connecting the electrical connection portions of the respective bus bars.

Here, an example will be given of an electrical wiring block joint 1 provided with two electrical wiring blocks (first electrical wiring block 10, second electrical wiring block 20) (FIGS. 1 and 2). The first electrical wiring block 10 (FIGS. 1 to 6) and the second electrical wiring block 20 (FIGS. 1, 2 and 7) are each molded from an insulating material such as synthetic resin.

The first electrical wiring block 10 accommodates the circuit protection component EP1 as the electronic component EP and also accommodates the bus bar 30 (FIG. 6). The first electrical wiring block 10 is formed with a first accommodation chamber 11 for accommodating and holding the circuit protection component EP1 and a second accommodation chamber 12 for accommodating and holding the bus bar 30. In the first electric wiring block 10, six circuit protection components EP1 are accommodated, and each circuit protection component EP1 is electrically connected via one bus bar 30. Therefore, in this embodiment, six first storage chambers 11 are arranged side by side in a grid pattern, and one circuit protection component EP1 is housed in each of the first storage chambers 11 via the opening 11a. Further, in each of the first accommodation chambers 11, the terminal connection portion 31 of the bus bar 30 accommodated in the second accommodation chamber 12 is inserted. Therefore, when the circuit protection component EP1 is housed in the first storage chamber 11, it is physically and electrically connected to the bus bar 30 via the terminal connection portion 31.

Here, the bus bar 30 is molded from a conductive material such as metal. The example bus bar 30 is a plate-shaped one formed by press-molding a metal plate such as a copper plate as a base material (FIGS. 6 and 8). The bus bar 30 has six terminal connection portions 31 for each circuit protection component EP1. The terminal connection portion 31 of this example is formed in a so-called male tab shape, and is inserted and fitted into one female terminal connection portion (not shown) of the circuit protection component EP1. The bus bar 30 has two sets of three terminal connection portions 31 arranged at substantially equal intervals on the same plane, and the combinations are arranged so as to face each other. The bus bar 30 is a rectangular first connecting portion 32 that connects the three terminal connecting portions 31 of one combination on the same plane and a rectangular first connecting portion 31 that connects the three terminal connecting portions 31 of the other combination on the same plane. It has a second connecting portion 33 and. In this bus bar 30, each terminal connecting portion 31 is projected and extended in the same direction with respect to the first connecting portion 32 and the second connecting portion 33, and the extending direction is the circuit protection component EP1. It becomes the insertion / removal direction with the terminal connection part of. Further, the bus bar 30 has a rectangular third connecting portion 34 that connects the first connecting portion 32 and the second connecting portion 33 on the opposite side of the terminal connecting portion 31. In the bus bar 30, a main body portion is formed by the six terminal connecting portions 31, the first connecting portion 32, the second connecting portion 33, and the third connecting portion 34.

In the first electric wiring block 10, the end portion of the electric wire We is electrically connected to the other female terminal connection portion (not shown) of the circuit protection component EP1. The electric wire We is physically and electrically connected to the circuit protection component EP1 via, for example, a male tab type terminal fitting attached to an end portion. This electric wire We is provided for each circuit protection component EP1.

The second electrical wiring block 20 accommodates the relay EP2 as an electronic component EP and also accommodates the bus bar 40 (FIG. 7). The second electrical wiring block 20 is formed with a first storage chamber 21 for accommodating and holding the relay EP2 and a second accommodation chamber 22 for accommodating and holding the bus bar 40. The second electrical wiring block 20 accommodates 10 relays EP2, and each relay EP2 is electrically connected via one bus bar 40. Therefore, in this example, ten first storage chambers 21 are arranged side by side in a grid pattern, and one relay EP2 is housed in each of the first storage chambers 21 via the opening 21a. Further, in each of the first accommodation chambers 21, the terminal connection portion 41 of the bus bar 40 accommodated in the second accommodation chamber 22 is inserted. Therefore, when the relay EP2 is housed in the first storage chamber 21, it is physically and electrically connected to the bus bar 40 via the terminal connection portion 41.

Here, the bus bar 40 is molded from a conductive material such as metal. Like the bus bar 30 of the first electric wiring block 10, the bus bar 40 of this example is a plate-shaped one that is press-molded using a metal plate such as a copper plate as a base material (FIGS. 7 and 8). The bus bar 40 has 10 terminal connection portions 41 for each relay EP2. The terminal connection portion 41 of this example is formed in a so-called tuning fork terminal type, and when one of the male tab type terminal connection portions EP2a (FIG. 7) of the relay EP2 is inserted, the terminal connection portion of the relay EP2 is inserted. Insert the EP2a. The bus bar 40 has two sets of five terminal connection portions 41 arranged at substantially equal intervals on the same plane, and the combinations are arranged so as to face each other. The bus bar 40 is a rectangular first connecting portion 42 that connects the five terminal connecting portions 41 of one combination on the same plane and a rectangular first connecting portion 41 that connects the five terminal connecting portions 41 of the other combination on the same plane. It has a second connecting portion 43 and. In this bus bar 40, each terminal connecting portion 41 is projected and extended in the same direction with respect to the first connecting portion 42 and the second connecting portion 43, and the extending direction is the terminal of the relay EP2. It is in the insertion / removal direction with the connection portion EP2a. Further, the bus bar 40 has a rectangular third connecting portion 44 that connects the first connecting portion 42 and the second connecting portion 43 on the opposite side of the terminal connecting portion 41. In this bus bar 40, a main body portion is formed by 10 terminal connecting portions 41, a first connecting portion 42, a second connecting portion 43, and a third connecting portion 44.

In the second electrical wiring block 20, the end portion of the electric wire We is electrically connected to the other male tab type terminal connection portion EP2b (FIG. 7) of the relay EP2. The electric wire We is physically and electrically connected to the relay EP2 via, for example, a tuning fork terminal type terminal fitting attached to an end portion. This electric wire We is provided for each relay EP2.

The first electric wiring block 10 and the second electric wiring block 20 shown here have an opening 11a (insertion port of the circuit protection component EP1) of the first accommodation chamber 11 and an opening 21a (relay EP2) of the first accommodation chamber 21. Join so that the mouth is open in the same direction as the insertion port). As shown above, in the electric wiring block joint 1, the first electric wiring block 10 and the second electric wiring block 20 are joined to each other, and the respective bus bars 30 and 40 are connected to each other. 30 and 40 are electrically connected. Here, the electrical connection portions 35 and 45 of the respective bus bars 30 and 40 are coupled (FIGS. 3 to 5, 8 and 9). The respective bus bars 30 and 40 are coupled and electrically connected via their respective electrical connection portions 35 and 45.

In the bus bar 30, the electrical connection portion 35 is provided so as to project from the main body portion (six terminal connection portions 31, the first connection portion 32, the second connection portion 33, and the third connection portion 34). In the bus bar 30, the electrical connection portion 35 is projected from the end portion (one side) of the first connecting portion 32. Here, in the first connecting portion 32, the electrical connecting portion 35 is provided at one end of the three terminal connecting portions 31 in the arrangement direction. The illustrated electrical connection portion 35 is formed in a rectangular plate shape on the same plane as the first connection portion 32 (FIGS. 6 and 8). Further, in the bus bar 40, the electric connection portion 45 is provided in a state of protruding from the main body portion (10 terminal connection portions 41, the first connection portion 42, the second connection portion 43, and the third connection portion 44). In the bus bar 40, the electrical connection portion 45 is projected from the end portion (one side) of the first connecting portion 42. Here, in the first connecting portion 42, the electrical connecting portion 45 is provided at one end of the five terminal connecting portions 41 in the arrangement direction. The illustrated electrical connection portion 45 is formed in a rectangular plate shape on the same plane as the first connection portion 42 (FIGS. 7 and 8).

The electrical wiring block joint 1 includes a connection member 50 for electrically connecting the respective electrical connection portions 35 and 45 (FIGS. 2 to 5, 8 and 9). The connecting member 50 is a member for connecting the respective electrical connecting portions 35 and 45 and maintaining the connected state. The connecting member 50 electrically connects the electrical connecting portions 35 and 45 by holding them in a coupled state.

The connection member 50 is inserted into the respective electrical connection portions 35, 45 in which one of the wall surfaces is arranged so as to face each other, so that the one wall surface is overlapped with each other and the respective electrical connection portions 35, 45 are overlapped with each other. And keep the respective electrical connection portions 35, 45 in the coupled state.

Therefore, the connecting members 50 are arranged so as to face each other, and have two pressing wall bodies 51 that are sandwiched while applying pressing pressure to the other wall surface of the respective electrical connecting portions 35 and 45 (FIGS. 2 and 4). , FIG. 5, FIG. 8 and FIG. 9). Further, the connecting member 50 has a connecting wall body 52 for connecting the respective pressing wall bodies 51 on the side opposite to the insertion direction to the respective electrical connecting portions 35 and 45 (FIGS. 2 to 5; 8 and 9). In the connecting member 50, the space surrounded by the two pressing wall bodies 51 and the connecting wall body 52 is a storage space in which the respective electrical connection portions 35 and 45 are accommodated by superimposing one wall surface on each other. It becomes 53 (FIG. 2, FIG. 5, FIG. 8 and FIG. 9). Further, in the connecting member 50, the space between the ends of the two pressing wall bodies 51 on the opposite side of the connecting wall body 52 serves as the insertion port 54 when the two pressing wall bodies 51 are inserted into the respective electrical connection portions 35 and 45. 2, FIG. 5, FIG. 8 and FIG. 9).

The connection member 50 is inserted and inserted into the respective electrical connection portions 35 and 45 from the insertion port 54. In the connection member 50, as the insertion and insertion progresses, the respective electrical connection portions 35 and 45 are accommodated toward the connection wall body 52 on the opposite side of the insertion port 54 while one of the wall surfaces is overlapped with each other. Move in space 53. In the connection member 50, the respective electrical connection portions 35, 45 move in the accommodation space 53 to a predetermined position, so that the accommodation of the respective electrical connection portions 35, 45 into the accommodation space 53 is completed. The two pressing wall bodies 51 are sandwiched by applying pressing pressure to the other wall surface of the respective electrical connection portions 35, 45 accommodated in the accommodation space 53.

The connecting member 50 is formed of a conductive material such as metal. The connecting member 50 of this example is a plate-shaped member formed by press-molding a metal plate such as a copper plate as a base material. In this exemplary connecting member 50, the two pressing wall bodies 51 and the connecting wall body 52 are each formed in the shape of a rectangular piece. The pressing wall 51 has a rectangular pressing portion 51a whose insertion port 54 side is offset toward the accommodation space 53, and a rectangular root portion 51b between the pressing portion 51a and the connecting wall body 52 (FIG. FIG. 2, FIG. 5, FIG. 8 and FIG. 9). The pressing portion 51a exerts a pressing force on the other wall surface of the electrical connection portion 35 (45) in a state of being in surface contact with the other wall surface. On the other hand, the root portion 51b forms a gap between the root portion 51b and the other wall surface of the electrical connection portion 35 (45).

The connecting member 50 can bend each of the pressing wall bodies 51 with the connecting wall body 52 as a fulcrum, and can change the distance between the inner wall surfaces of the respective pressing wall bodies 51 arranged opposite to each other. Then, in the connecting member 50, a spring force can be generated between the respective pressing wall bodies 51 by generating the bending within the elastic region. In this connection member 50, before the respective electrical connection portions 35 and 45 are accommodated in the accommodation space 53, the distance between the inner wall surfaces of the respective pressing portions 51a arranged to face each other is the plate of the respective electrical connection portions 35 and 45. It is formed so as to be narrower than the total thickness. As a result, in the connection member 50, as the electrical connection portions 35 and 45 are inserted into the accommodation space 53, the other wall surface of the electrical connection portions 35 and 45 causes the respective pressing portions 51a to form an inner wall surface. It is spread out from the side, and bending occurs in each pressing wall body 51. The connecting member 50 is formed so as to generate its deflection within the elastic region. As a result, the respective pressing portions 51a can exert a pressing force on the other wall surface of the respective electrical connection portions 35 and 45, and the respective electrical connection portions 35 and 45 are sandwiched in a superposed state. Can be done. Therefore, the connecting member 50 can connect the respective bus bars 30 and 40 and maintain the electrical connection state with each other.

In the electrical wiring block joint 1, at least one of the first electrical wiring block 10 and the second electrical wiring block 20 to be joined accommodates the respective electrical connection portions 35 and 45 and the connection member 50. A containment room will be provided. Here, a third accommodation chamber 13 as the accommodation chamber is provided in the first electrical wiring block 10 (FIGS. 1 to 6, 8 and 9). The third storage chamber 13 is formed in a tubular shape with both ends open. The electrical connection portions 35 and 45 and the connection member 50 are inserted into the third storage chamber 13 along the axial direction thereof. The third accommodation chamber 13 of this example is formed in a square cylinder shape, and is connected to a first insertion port 13a (FIGS. 3, 5, and 8) for inserting the respective electrical connection portions 35, 45. It has a second insertion slot 13b (FIGS. 1 to 6, 8 and 9) for inserting the member 50. In the third storage chamber 13, the second insertion port 13b opens in the same direction as the opening 11a of the first storage chamber 11.

In the first electrical wiring block 10, when the bus bar 30 is accommodated in the second accommodating chamber 12, the electric connection portion 35 is accommodated from the first insertion port 13a to the third accommodating chamber 13. Further, in the third storage chamber 13, when the first electric wiring block 10 and the second electric wiring block 20 are joined, the electric connection portion 45 of the bus bar 40 is housed from the first insertion port 13a.

The inner wall surface 13c of the third accommodation chamber 13 is arranged to face the first facing wall surface 13c ₁ which is arranged to face the other wall surface of one electrical connection portion 35 and the other wall surface of the other electrical connection portion 45. It has a second facing wall surface 13c ₂ (FIG. 4). Further, the inner wall surface 13c is orthogonal to the facing arrangement direction of the first and second facing wall surfaces 13c ₁ and 13c ₂ and the insertion direction of the connecting member 50 from the second insertion port 13b (hereinafter, "connecting member 50"). The third and fourth facing wall surfaces 13c ₃ and 13c ₄ are arranged so as to face each other in the width direction of the above (FIG. 4).

In the third storage chamber 13, the connection member 50 is housed from the second insertion port 13b in a state where the respective electrical connection portions 35 and 45 are housed. The connecting member 50 is inserted into the third storage chamber 13 from the second insertion port 13b, and the insertion port 54 is inserted into the respective electrical connection portions 35, 45 housed in the third storage chamber 13. Insert from. In the connecting member 50, one of the pressing wall bodies 51 is arranged to face the first facing wall surface 13c ₁ at intervals in the third accommodation chamber 13, and the other pressing wall body 51 faces the second facing wall body 51. They are arranged so as to face the wall surface 13c ₂ at intervals (FIG. 4). Further, in the connecting member 50, one end in the width direction is arranged to face the third facing wall surface 13c ₃ at intervals in the third accommodating chamber 13, and the other end in the width direction faces the fourth facing wall surface. They are arranged opposite to 13c ₄ at intervals (FIG. 4).

Here, the third accommodation chamber 13 guides the connecting member 50 inserted from the second insertion port 13b, and inserts and inserts the connecting member 50 from the insertion port 54 into the respective electrical connection portions 35 and 45. It has an insertion guide structure 60 (FIGS. 3 to 5, 8 and 9).

For example, the insertion guide structure 60 includes a first insertion guide portion 61 and a second insertion guide portion 62 provided on the inner wall surface 13c of the third storage chamber 13 (FIGS. 4 and 5). Here, the first insertion guide portion 61 is provided on the first facing wall surface 13c ₁ , and the second insertion guide portion 62 is provided on the second facing wall surface 13c ₂ . The first insertion guide portion 61 projects from the first facing wall surface 13c ₁ toward the other wall surface of one electrical connection portion 35, and at least toward the insertion direction of the connection member 50 from the second insertion port 13b. Prolonged (Figs. 4 and 5). On the other hand, the second insertion guide portion 62 is projected from the second facing wall surface 13c ₂ toward the other wall surface of the other electrical connection portion 45, and is arranged to face the first insertion guide portion 61 in the protruding direction. At least, the connecting member 50 is extended in the insertion direction from the second insertion port 13b (FIGS. 3 to 5, 8 and 9).

The pair of the first insertion guide portion 61 and the second insertion guide portion 62 guide the outer wall surface side of each pressing wall body 51 in the connection member 50 inserted from the second insertion port 13b, and the connection member thereof. The 50 is formed so as to be inserted and inserted from the insertion port 54 into the respective electrical connection portions 35 and 45.

The first insertion guide portion 61 of this example extends in the insertion direction of the connecting member 50 from the second insertion port 13b, and the cross section orthogonal to the extending direction is the other wall surface side of the one electrical connection portion 35. It is formed so as to be a triangle whose apex is. On the other hand, the second insertion guide portion 62 of this example extends in the insertion direction of the connecting member 50 from the second insertion port 13b, and the cross section orthogonal to the extending direction is the other of the other electrical connection portion 45. It is formed so as to form a triangle with the wall surface side as the apex. The pair of the first insertion guide portion 61 and the second insertion guide portion 62 may be formed so that the respective electrical connection portions 35 and 45 are sandwiched from the other wall surface side at each apex. Further, the pair of the first insertion guide portion 61 and the second insertion guide portion 62 are electrically connected to the apex of the first insertion guide portion 61 within a range in which the guide function for the connecting member 50 can be secured. It may be formed so that there is a gap between the other wall surface of the portion 35 and the other wall surface of the other electrical connection portion 45 between the apex of the second insertion guide portion 62 and the other wall surface.

The insertion guide structure 60 of this example includes two sets of a pair of the first insertion guide portion 61 and the second insertion guide portion 62. Each pair of the first insertion guide portion 61 and the second insertion guide portion 62 are arranged at intervals in the width direction of the connecting member 50.

Here, the first insertion guide portion 61 is an outer wall surface on the insertion port 54 side in each pressing wall body 51 (that is, an outer wall surface on the insertion port 54 side in each pressing portion 51a) in its own protruding direction. It is formed so that the distance D1 between its own apex and the other wall surface of one electrical connection portion 35 is narrower than the distance D0 (FIG. 10). Further, the second insertion guide portion 62 has a narrower distance D2 between its apex and the other wall surface of the other electrical connection portion 45 than the distance D0 of the connection member 50 in its own protruding direction. (Fig. 10). As a result, the insertion guide structure 60 suppresses the entry of the connecting member 50 between the first insertion guide portion 61 and the other wall surface of the one electrical connection portion 35, and the second insertion guide portion 62 and the other. It is possible to suppress the entry of the connecting member 50 between the electrical connecting portion 45 and the other wall surface of the electrical connecting portion 45. Therefore, in this insertion guide structure 60, the connection member 50 inserted from the second insertion port 13b is inserted into the electrical connection portions 35 and 45 housed in the third storage chamber 13 through the insertion port 54. Can be made to.

Further, the insertion guide structure 60 can guide one end of the connection member 50 in the width direction when the connection member 50 is inserted and inserted into the respective electrical connection portions 35 and 45 from the insertion port 54. , A third insertion guide portion capable of locking one end in the width direction of the connecting member 50 in the width direction of the connecting member 50, and a connecting member 50 from the insertion port 54 to the respective electrical connecting portions 35 and 45. A fourth position capable of guiding the other end of the connecting member 50 in the width direction at the time of insertion and insertion and locking the other end of the connecting member 50 in the width direction of the connecting member 50. It has an insertion guide portion and.

For example, when the third insertion guide portion and the fourth insertion guide portion are locked at one end or the other end in the width direction of the connecting member 50, the third insertion guide portion and the fourth insertion guide portion are connected to the respective electrical connection portions 35 and 45 by the respective pressing wall bodies 51. It is formed so that it can be kept in a pinched state. Within this condition, the third insertion guide portion and the fourth insertion guide portion allow the position of the connecting member 50 to be displaced in the width direction with respect to the respective electrical connection portions 35 and 45. In this insertion guide structure 60, the third facing wall surface 13c ₃ is used as the third insertion guide portion, and the fourth facing wall surface 13c ₄ is used as the fourth insertion guide portion.

As shown above, the electrical wiring block joint 1 of the present embodiment guides the connecting member 50 inserted from the second insertion port 13b by the insertion guide structure 60, and inserts the connecting member 50 into the insertion port. It can be inserted and inserted from 54 into the respective electrical connection portions 35 and 45. That is, the electrical wiring block joint 1 can suppress the positional deviation between the connecting members 50 when assembling the connecting members 50 to the respective electrical connecting portions 35 and 45, and can improve the workability of assembling the connecting members 50. Can be improved.

By the way, in the third accommodation chamber 13, one wall surface of each of the electrical connection portions 35, 45 is overlapped with each other in order to insert and insert the connection member 50 into the respective electrical connection portions 35, 45 from the insertion port 54. It is desirable that it is done. Therefore, in the third accommodation chamber 13, the respective electric connection portions 35, 45 are placed on the other wall surface in a state where one wall surface of each of the electric connection portions 35, 45 accommodated is overlapped with each other. A bus bar sandwiching structure 70 for sandwiching from the side is provided (FIGS. 4, 5 and 11).

The bus bar sandwiching structure 70 includes a first sandwiching portion 71 and a second sandwiching portion 72 provided on the inner wall surface 13c of the third accommodation chamber 13 (FIGS. 4 and 5). Here, the first holding portion 71 is provided on the first facing wall surface 13c ₁ , and the second holding portion 72 is provided on the second facing wall surface 13c ₂ . The first sandwiching portion 71 is projected from the first facing wall surface 13c ₁ toward the other wall surface of one electrical connection portion 35, and is inserted from at least the first insertion openings 13a of the respective electrical connection portions 35 and 45. It is extended in the direction (FIGS. 4 and 5). On the other hand, the second holding portion 72 is projected from the second facing wall surface 13c ₂ toward the other wall surface of the other electrical connection portion 45, and is arranged to face the first holding portion 71 in the protruding direction. At least the electrical connection portions 35 and 45 are extended in the insertion direction from the first insertion port 13a (FIGS. 4, 5 and 11).

The first sandwiching portion 71 of this example extends in the insertion direction from the first insertion port 13a of the respective electrical connecting portions 35 and 45, and one of the electrical connecting portions 35 in the cross section orthogonal to the extending direction. The other wall surface side is formed so as to form a triangle with the other wall surface side as the apex. On the other hand, the second sandwiching portion 72 of this example extends in the insertion direction from the first insertion port 13a of the respective electrical connecting portions 35 and 45, and the other electrical connecting portion in the cross section orthogonal to the extending direction. The other wall surface side of the 45 is formed so as to form a triangle with the other wall surface side as the apex. The pair of the first sandwiching portion 71 and the second sandwiching portion 72 have the respective electrical connection portions 35, 45 at their respective vertices within a range that allows the insertion of the respective electrical connection portions 35, 45 between them. It is formed so as to be sandwiched from the other wall surface side.

The bus bar sandwiching structure 70 of this example includes two sets of a pair of first sandwiching portions 71 and a second sandwiching portion 72. Each pair of the first holding portion 71 and the second holding portion 72 are arranged on the first insertion port 13a side of the third storage chamber 13 at intervals in the width direction of the connecting member 50.

As shown above, in the electric wiring block joint 1 of the present embodiment, the electric connection portions 35 and 45 are placed in the third storage chamber 13 in a state where one of the wall surfaces is overlapped with each other by the bus bar sandwiching structure 70. Can be accommodated in. Therefore, in the electrical wiring block joint 1, when the connection member 50 is inserted from the second insertion port 13b, the connection member 50 is inserted into the respective electrical connection portions 35 and 45 from the insertion port 54. It can be inserted and inserted. That is, in the electric wiring block joint 1, it is possible to avoid a situation in which the connection member 50 is inserted and inserted into only one of the respective electric connection portions 35 and 45. Therefore, the electrical wiring block joint 1 can further improve the assembling workability of the connecting member 50 by providing such a bus bar sandwiching structure 70.

Here, since the electric connection box JB and the wire harness WH of the present embodiment include the electric wiring block joint 1 shown above, the effect of the electric wiring block joint 1 can be similarly obtained.

1 Electrical wiring block joint 10 1st electrical wiring block 20 2nd electrical wiring block 13 3rd accommodation room (accommodation room)
13b 2nd insertion slot (insertion slot)
13c Inner wall surface 13c ₁ First facing wall surface 13c ₂ Second facing wall surface 13c ₃ Third facing wall surface (third insertion guide part)
13c ₄ 4th facing wall surface (4th insertion guide part)
30, 40 Bus bar 35, 45 Electrical connection part 50 Connection member 51 Pressing wall body 52 Connecting wall body 53 Accommodation space 54 Insertion port 60 Insertion guide structure 61 First insertion guide part 62 Second insertion guide part 70 Bus bar holding structure 71 First Holding part 72 First holding part EP Electronic component JB Electrical junction box JBa Housing We Wire wire WH Wire harness

Claims (6)

Multiple electrical wiring blocks that electrically connect electronic components and bus bars inside,
A connecting member that electrically connects the electrical connection portion of each of the bus bars between the two electrical wiring blocks to be joined to each other.
Equipped with
At least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portion and the connection member.
The connecting members are arranged so as to face each other with a storage space in which the respective electrical connection portions are accommodated by overlapping one wall surface with each other and an insertion port for inserting and inserting into the respective electrical connection portions. Two pressing wall bodies that are sandwiched by applying pressing force to the other wall surface of each of the electrical connection portions housed in the accommodation space, and a connecting wall that connects the respective pressing wall bodies on the opposite side of the insertion port. With the body,
The accommodation chamber guides and guides the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodations of the electrical connection portion, and the connection member inserted from the insertion port. An electrical wiring block joint characterized by having an insertion guide structure for inserting and inserting a connecting member from the insertion port into each of the electrical connection portions. The inner wall surface of the accommodation chamber is a first facing wall surface facing the other wall surface of one of the electrical connection portions, and a second facing wall surface facing the other wall surface of the other electrical connection portion. And have
The insertion guide structure is a first that protrudes from the first facing wall surface toward the other wall surface of one of the electrical connection portions and extends at least toward the insertion direction of the connection member from the insertion port. The insertion guide portion and the second facing wall surface are projected toward the other wall surface of the other electrical connection portion and are arranged to face the first insertion guide portion in the protruding direction, and at least the insertion of the connection member. The electrical wiring block joint according to claim 1, further comprising a second insertion guide portion extending in the insertion direction from the mouth. The inner wall surface of the accommodation chamber is arranged to face one end of the connecting member in a direction orthogonal to the facing arrangement direction of the first and second facing wall surfaces and the insertion direction of the connecting member from the insertion port. It has a third facing wall surface and a fourth facing wall surface which is arranged to face the other end of the connecting member.
The insertion guide structure can guide one end of the connecting member when the connecting member is inserted and inserted from the insertion port into each of the electrical connection portions, and the connection member can be connected in the orthogonal direction. The third facing wall surface is used as a third insertion guide portion capable of locking one end of the member, and when the connection member is inserted and inserted into each of the electrical connection portions from the insertion port. The fourth facing wall surface is used as a fourth insertion guide portion capable of guiding the other end of the connecting member and locking the other end of the connecting member in the orthogonal direction. 2. The electrical wiring block joint according to claim 2. The accommodation chamber has a bus bar sandwiching structure in which the one wall surface of each of the electrical connection portions accommodated is overlapped with each other, and the electrical connection portions are sandwiched from the other wall surface side. The electrical wiring block joint according to claim 1, 2, or 3, characterized in that it has. With electronic components
Basba and
A plurality of electrical wiring blocks that electrically connect the electronic component and the bus bar inside, and
A connecting member that electrically connects the electrical connection portion of each of the bus bars between the two electrical wiring blocks to be joined to each other.
A housing that accommodates the plurality of electrical wiring blocks,
Equipped with
At least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portion and the connection member.
The connecting members are arranged so as to face each other with a storage space in which the respective electrical connection portions are accommodated by overlapping one wall surface with each other and an insertion port for inserting and inserting into the respective electrical connection portions. Two pressing wall bodies that are sandwiched by applying pressing force to the other wall surface of each of the electrical connection portions housed in the accommodation space, and a connecting wall that connects the respective pressing wall bodies on the opposite side of the insertion port. With the body,
The accommodation chamber guides and guides the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodations of the electrical connection portion, and the connection member inserted from the insertion port. An electrical connection box characterized by having an insertion guide structure for inserting and inserting a connection member from the insertion port into each of the electrical connection portions. With electronic components
Basba and
With electric wires
A plurality of electrical wiring blocks for electrically connecting the electronic component, the bus bar, and the electric wire inwardly.
A connecting member that electrically connects the electrical connection portion of each of the bus bars between the two electrical wiring blocks to be joined to each other.
A housing that accommodates a plurality of the electric wiring blocks and pulls out the electric wire to the outside,
Equipped with
At least one of the two electrical wiring blocks to be joined has a storage chamber for accommodating the respective electrical connection portion and the connection member.
The connecting members are arranged so as to face each other with a storage space in which the respective electrical connection portions are accommodated by overlapping one wall surface with each other and an insertion port for inserting and inserting into the respective electrical connection portions. Two pressing wall bodies that are sandwiched by applying pressing force to the other wall surface of each of the electrical connection portions housed in the accommodation space, and a connecting wall that connects the respective pressing wall bodies on the opposite side of the insertion port. With the body,
The accommodation chamber guides and guides the insertion port of the connection member when the connection member is inserted and inserted into each of the accommodations of the electrical connection portion, and the connection member inserted from the insertion port. A wire harness characterized by having an insertion guide structure for inserting and inserting a connecting member from the insertion port into each of the electrical connection portions.

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