JP2001189173A - Electrical connection case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase a reliability of electrical connection and to reduce assembling process in considering a connection between a tab terminal for a connector and a conductor circuit of an insulating plate. SOLUTION: Hoods 1d, 2d of connector housings 1c, 2c, and terminal holding parts 1e, 2e are formed integrally with each other. A tub 15a of a tab terminal 15, in which a tongue shape of spring contact 15d is formed, is held at the terminal holding parts 1e, 2e, so that the tongue shape of spring contact 15d of the tab terminal 15 is elastically contacted to a conductor circuit 12 of an insulating plate 11, when both cases 1, 2 are closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection between a tab terminal for a connector and a conductor circuit of an insulating plate, and further to an electric connection box in which the connection between the tab terminal and an electric wire is devised.

[0002]

2. Description of the Related Art An electrical junction box used for branch connection of an automobile wire harness or the like to various electrical components has a branch connection point concentrated in one place, and the wiring is rationally and economically branched. With the increase in the density of wire harnesses, various types have been developed according to vehicle types or applications.

[0003] As an electric junction box as described above, FIG.
As shown in FIG. 5, a plurality of lock claws 1b are formed on the peripheral wall 1a of the lower case 1, and the peripheral wall 2a of the upper case 2 is formed.
A lock recess 2b corresponding to the lock claw 1b is formed, an insulating plate 4 in which a conductor circuit is formed by a bus bar 3 or the like is accommodated in the two cases 1 and 2, and the lower case 1 is covered with the upper case 2, In some cases, both cases 1 and 2 are locked to each other by engaging each lock recess 2b with the lock claw 1b.

A hood portion 2d of a connector housing 2c and a terminal insertion portion (not specifically shown) are integrally formed in the upper case 2 (similarly in the lower case 1), and the two cases 1 and 2 are closed. At this time, the tab terminal 3a bent and formed on the bus bar 3 passes through the terminal insertion portion and faces the inside of the hood portion 2d.

In the above structure, the bus bar 3 has the tab terminals 3a.
Is bent, the bending position of the tab terminal 3a is restricted, and the degree of freedom in circuit design is reduced. Therefore, it has been proposed to solder a separate tab terminal 3 a to the bus bar 3.

On the other hand, from the viewpoint of reducing the size and weight of the electric junction box, these conductor (copper foil) circuits are formed by using an FPC (flexible printed circuit) or a PCB (printed circuit board) instead of the bus bar as described above. It has also been proposed to solder a separate tab terminal.

[0007]

However, when the tab terminals are soldered, there is a risk that cracks will occur in a heat cycle or the like when mounted on an actual vehicle, making it difficult to obtain long-term reliability of electrical connection. Also, FPC and PC
In the case of B, since the soldering is performed in the flow step, the number of assembling steps and the flow step increase due to the balance with the lower case 1 and the upper case 2.

Further, there is a circuit in which a large current value is supplied in the electric connection box, and a single core wire (electric wire) may be used in addition to the FPC and the PCB. In this case,
The same problem as described above also occurs in connection with a single core wire.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention has been made to solve the above-mentioned conventional problems by providing a connector tab terminal and a conductor circuit of an insulating plate so that the reliability of electrical connection is high and the number of assembly steps can be reduced. It is an object of the present invention to provide an electric connection box in which the connection between the tab terminals and the electric wires is further devised.

[0010]

According to a first aspect of the present invention, an insulating plate having a conductor circuit formed therein is accommodated in a lower case and an upper case, and a tab terminal is provided on the conductor circuit. Is an electrical junction box that is adapted to be electrically connected, having a hole for inserting the tab portion of the tab terminal, and a terminal holding portion that can be fixed at a position facing the insulating plate. A tongue-shaped spring contact portion is formed on the tab terminal, and when the terminal holding portion is fixed at the predetermined position in a state where the tab terminal is inserted and held in the terminal holding portion, the tongue-shaped spring contact portion of the tab terminal is formed. An object of the present invention is to provide an electric junction box, wherein a spring contact portion elastically contacts a conductor circuit of an insulating plate.

According to the first aspect, as long as the terminal holding portion into which the tab terminal is inserted and held is fixed at the predetermined position, the elastic contact of the tongue-shaped spring contact portion with the conductive circuit allows the conductive circuit and the tab terminal to be connected to each other. Is achieved.

According to a second aspect of the present invention, in the electric connection box of the first aspect, the hood portion and the terminal holding portion of the connector housing are integrally formed on one or both of the lower case and the upper case. The tongue-shaped spring contact portion of the tab terminal elastically contacts the conductor circuit of the insulating plate when the two cases are closed while the tab terminal is inserted and held in the terminal holding portion.

According to the second aspect, the hood portion of the connector housing and the terminal holding portion are integrally formed, and the tab portion of the tab terminal having the tongue-shaped spring contact portion is inserted and held in the terminal holding portion. When the two cases are closed, the tongue-shaped spring contact portion of the tab terminal elastically contacts the conductor circuit of the insulating plate.

According to a third aspect of the present invention, the insulating plate on which the conductor circuit is formed, the electric wires, and the partition plate located therebetween are disposed inside the case, and the terminal plate is formed on the partition plate. At the same time, a pressure contact blade is provided at the tip of the tab portion of the tab terminal, and the wire is press-connected to the pressure contact blade, while the partition plate is fixed to the insulating plate in a state where the tab terminal is inserted and held in the terminal holding portion. When this is done, the tongue-shaped spring contact portion of the tab terminal comes into elastic contact with the conductor circuit of the insulating plate.

According to the third aspect, the wire is pressed against the press-contact blade inserted and held in the terminal holding portion of the partition plate,
When the partition plate is fixed to the insulating plate, the tongue-shaped spring contact portion of the tab terminal comes into elastic contact with the conductor circuit of the insulating plate.

Further, it is preferable that the conductor circuit of the insulating plate is a bus bar or a copper foil.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. It should be noted that the same configuration and operation as those of the related art are denoted by the same reference numerals, and detailed description is omitted.

(First Embodiment) FIGS. 1 to 4 show an electric junction box according to a first embodiment. FIG. 4A shows a PCB (printed circuit board) 10. As shown in detail in FIG. 2, conductive circuits 12 of a copper foil pattern are formed on the upper and lower surfaces of an insulating plate 11, respectively. The surface of 12 is coated with an insulating resin 13.

In each conductive circuit 12, a land 13 a is formed in a portion of the conductive resin 12 where connection to a tab terminal, which will be described later, is required, by opening a hole in the insulating resin 13 to expose the conductive circuit 12.

FIG. 4B shows an FPC (flexible printed circuit) 14. Referring to FIG.
On the upper and lower surfaces of the insulating plate 11, FPCs 14 each of which is formed by covering a conductive circuit 12 of a copper foil pattern with an insulating resin 13 are adhered.

In each conductive circuit 12, a land 13 a is formed in a portion where connection with a tab terminal, which will be described later, is required, by opening a hole in the insulating resin 13 to expose the conductive circuit 12.

Although not specifically shown, the insulating plate 11
The upper and lower surfaces of the conductive circuits 12 are formed by bus bars, respectively, and the surface of each conductive circuit 12 is coated with an insulating resin 13. In each conductive circuit 12, a portion to be connected to a tab terminal described later is required. Is the insulating resin 13
Alternatively, a land 13a may be formed in which the conductive circuit 12 is exposed by making a hole in the hole.

As shown in FIG. 3, a tab terminal 15 is formed by bending a conductive metal material into a substantially L-shape. The claw 15b is cut and raised, and the horizontal base 15
A c-shaped tongue-shaped spring contact portion 15d bent downward and forward in a U-shape is formed at the rear end of the base portion 15c.
Cover portions 15e are formed to cover both sides of d. The tab portion 15a is folded in two layers so as to secure the tab thickness.

On the other hand, as shown in FIG. 1, on the lower surface of the lower case 1, a hood portion 1d of a connector housing 1c projecting inward and outward from the lower surface is integrally formed, and a bottom cover is provided inside the hood portion 1d. Terminal holding portion 1e is formed integrally.

The terminal holding portion 1e has the tab terminal 1
5 are formed with an insertion hole 1f through which the tab portion 15a is inserted, and a concave portion 1g for accommodating the tongue-shaped spring contact portion 15d and the cover portion 15e.

Similarly, on the upper surface of the upper case 2, a connector housing 2c protruding inward and outward from the upper surface.
The hood portion 2d is integrally formed, and a bottom cover-like terminal holding portion 2e is integrally formed inside the hood portion 2d.

The terminal holding portion 2e has the tab terminal 1
5 are formed with an insertion hole 2f through which the tab portion 15a is inserted, and a concave portion 2g for accommodating the tongue-shaped spring contact portion 15d and the cover portion 15e.

Then, as will be described later, both cases 1 and 2 are filled and locked in a state where the insulating plate 11 is accommodated inside the cases 1 and 2 so that the terminal holding portions 1 e and 2 e face the insulating plate 11. To be fixed at a predetermined position.

In the configuration of the first embodiment, when the tab portion 15a of the tab terminal 15 is inserted from the opening side of the lower case 1 into the insertion hole 1f of the terminal holding portion 1e of the connector housing 1c, the locking claw 15b is moved. The tab terminal 15 is locked by the insertion hole 1f so as to be prevented from coming off and held (see FIG. 2B). At the same time, the tongue-shaped spring contact portion 15d and the cover portion 15e of the tab terminal 15 are accommodated in the recess 1g.

Similarly, when the tab portion 15a of the tab terminal 15 is inserted into the insertion hole 2f of the terminal holding portion 2e of the connector housing 2c from the opening side of the upper case 2, the locking claw 1
5b is locked in the insertion hole 2f, and the tab terminal 15 is prevented from coming off and held (see FIG. 2B). At the same time, the tongue-shaped spring contact portion 15d and the cover portion 15e of the tab terminal 15 are accommodated in the recess 2g.

In this state, when the insulating plate 11 is accommodated in the lower case 1 and the upper case 2 and both the cases 1 and 2 are closed and locked, the upper and lower surfaces of the insulating plate 11 are connected to the connector housing of the upper case 2. The lower case 1 is sandwiched between the inner end of the lower case 1 and the inner end of the connector housing 1c, and the vertical position is restricted.

At this time, the tongue-shaped spring contact portions 15d of the tab terminals 15 of the lower case 1 and the upper case 2 come into elastic contact with the conductor circuits 12 of the lands 13a on the respective surfaces of the insulating plate 11 (see FIG. 2 (a)), each tab terminal 15 and each conductor circuit 12 are electrically connected.

As described above, since the tab terminals 15 and the conductor circuits 12 are electrically connected by the operation of closing and locking the lower case 1 and the upper case 2, the tab terminals are connected to the conductors as in the prior art. Since there is no need to solder to a circuit, there is no problem of crack generation, and long-term reliability of electrical connection can be obtained.

In the case of FPC or PCB, the number of assembly steps and the flow steps caused by soldering in the flow step can be reduced, and the cost can be reduced.

In the embodiment shown in FIG. 1A, the connector housings 1c and 2c are formed at vertically symmetric positions of the lower case 1 and the upper case 2. However, as shown in FIG. The connector housings 1c and 2c may be formed at the left and right offset positions of the case 2. The lower case 1 and the upper case 2
It is not necessary to form the connector housings 1c and 2c on both sides, and only one of them may be used.

(Second Embodiment) FIGS. 5 to 7 show an electric junction box according to a second embodiment. FIG. 7A shows a PCB (printed circuit board) 10, and FIG. 7B shows an FPC (flexible printed circuit) 14.
The basic structure of C14 is the same as that of the first embodiment,
Lock holes 11 a penetrating the insulating plate 11 are formed at appropriate places together with the insulating resin (sheet) portions of the PCB 10 and the FPC 14.

On the other hand, as shown in FIGS. 5 and 6, only the hood portion 2d of the connector housing 2c projecting inward and outward from the upper surface is integrally formed on the upper surface of the upper case 2, as in the first embodiment. The terminal holding portion 2e is not integrally formed.

The terminal holding portion 2e of the upper case 2 is provided separately. The terminal holding portion 2e has an insertion hole 2f through which the tab portion 15a of the tab terminal 15 is inserted, and a tongue-shaped portion. A concave portion 2g for accommodating the spring contact portion 15d and the cover portion 15e is formed, and the terminal holding portion 2e is formed.
Lock claws 2h that are inserted into the lock holes 11a of the insulating plate 11 and locked are formed on both sides of the insulating plate 11.

Although not specifically shown, the lower case 1 side may have the same configuration as the upper case 2 side.

With the configuration of the second embodiment, first,
When the tab portion 15a of the tab terminal 15 is inserted into the insertion hole 2f of the separate terminal holding portion 2e, the locking claw 15b is inserted into the insertion hole 2f.
And the tab terminal 15 is prevented from coming off and held. At the same time, the tongue-shaped spring contact portion 15d and the cover portion 15e of the tab terminal 15 are accommodated in the recess 2g.

When the lock claw 2h of the separate terminal holding portion 2e is inserted into the lock hole 11a of the insulating plate 11 and locked, the tongue-shaped spring contact portion 15d of each tab terminal 15 of the terminal holding portion 2e is insulated. Each of the tab terminals 15 and each of the conductor circuits 12 are electrically connected to each other by making elastic contact with the conductor circuits 12 of the lands 13 a on the upper surface of the plate 11.

In this state, when the two cases 1 and 2 are closed and locked while the insulating plate 11 is accommodated in the lower case 1 and the upper case 2, a separate body is provided at the inner end of the connector housing 2 c of the upper case 2. The terminal holding portion 2e abuts, and the tab portion 15a of the tab terminal 15 held by the terminal holding portion 2 is connected to the hood portion 2d of the connector housing 2c.
Come to face in.

As described above, each tab terminal 15 and each conductor circuit 12 are electrically connected by the operation of locking the separate terminal holding portion 2e to the insulating plate 11, and then the lower case 1 and the upper case 2 are connected. Just close and lock,
Unlike the related art, there is no need to solder the tab terminal to the conductor circuit, so that there is no problem of crack generation, and long-term reliability of electrical connection can be obtained.

In the case of FPC or PCB, the number of assembly steps and the flow steps caused by soldering in the flow step can be reduced, and the cost can be reduced.

As shown in FIG. 8, the hood portion 2d of the connector housing 2c and the terminal holding portion 2e are not integrally formed in the upper case 2, but only the through hole 2j through which the hood portion 2d penetrates is formed. Separate connector housing 2c integrally formed with hood 2d and terminal holding portion 2e
And the hood portion 2d is locked to the insulating plate 11 together with the terminal holding portion 2e as in the second embodiment.

Then, while housing the insulating plate 11 in the lower case 1 and the upper case 2,
When the lock 2 is closed and locked, the hood 2d of the connector housing 2c passes through the through hole 2j of the upper case 2 and faces the outside of the upper case 2.

(Third Embodiment) FIGS. 9 and 10 show an electric junction box according to a third embodiment. Here, an insulating plate 11 having a conductor circuit formed therein, an electric wire 17,
A partition plate 16 located between them is provided.
In the illustrated example, a printed circuit board 10 having a conductive circuit 12 formed of a copper foil pattern on an insulating plate 11 is disposed on the lower surface side of the partition plate 16 (between the partition plate 16 and the lower case 1). An electric wire 17 is laid on the upper surface side of the partition plate 16 (between the partition plate 16 and the upper case 2).

A terminal holding portion 16e is formed integrally with the partition plate 16. The tab portion 18a of the tab terminal 18 having the tongue-shaped spring contact portion 18d is inserted and held in the terminal holding portion 16e. When the press contact blade 18f is provided at the tip of the tab portion 18a, the electric wire 17 is pressed against the press contact blade 18f, and when the partition plate 16 is fixed to the insulating plate 11,
The tongue-shaped spring contact portion 18 d of the tab terminal 18 elastically contacts the conductor circuit 12 of the insulating plate 11.

In the third embodiment, the lower case 1
The upper case 2 is the same as that of the first and second embodiments. The partition plate 16 is made of an insulating resin layer (IP), and has grooves, projections, etc. (not shown) suitable for wiring the electric wires 17 formed on the upper surface thereof. Although a plurality of electric wires 17 are laid in the figure, these may be overlapped with each other because they are all coated with insulation. The electric wire 17 is, for example, a single core wire formed by twisting a plurality of strands made of a copper alloy into an insulating coating 17a. Its diameter depends on the current value that can be conducted.

As shown in FIG. 10, the tab terminal 18 is formed by bending a conductive metal material into a substantially L-shape.
The insulating coating 17a is cut by sandwiching the metal 7 and a press contact blade 18f for directly contacting the conductive wire 17b inside the insulating coating 17a is formed. The press-contact blade 18f is formed by slitting a predetermined width from an upper end to an intermediate portion of the tab portion 18a. Note that the predetermined width is set so that the wire of the conductor 17b is not cut as much as possible and the conductor 17b after the insulating coating 17a is cut is not detached by itself.
Is slightly smaller than the outer diameter of. Also, the tab terminal 18
The portion provided with the pressure contact blade 18f is wider than the base portion 18c by the predetermined width in order to secure its strength.

As in the first and second embodiments, the lower end of the tab portion 18a has a tongue-shaped spring contact portion bent downward and forward in a U-shape at the rear end of the horizontal base portion 18c. Covers 18e are formed on both sides of the base 18c, and are bent downward to cover both sides of the tongue-shaped spring contact 18d.
The tab portion 18a is folded in two layers so as to secure the tab thickness. Thus, an electrical contact area is secured between the press contact blade 18f and the conductor 17b, and a large current from the conductor 17a can flow to the tab terminal 18.

On the other hand, as shown by the one-dot chain line in FIG.
The partition plate 16 is integrally formed with a terminal holding portion 16e. The terminal holding portion 16e includes an insertion hole 16f through which the tab portion 18a of the tab terminal 18 is inserted, and a concave portion 16g for accommodating the tongue-shaped spring contact portion 18d and the cover portion 18e. The insertion hole 16f is formed on the lower surface of the plate 16 and penetrates the partition plate. Note that the lower surface of the partition plate 16 may be flattened, the recess 16 may be omitted, and the tab terminals 18 may be placed directly on the upper surface of the insulating plate 11, and spacers may be provided as necessary. Also, the insulating plate 11
May be a bus bar.

According to the configuration of the third embodiment, the tab portion 18 of the tab terminal 18 is inserted into the insertion hole 16f of the terminal holding portion 16e.
At the same time as a is inserted, the tongue-shaped spring contact portion 18d of the tab terminal 18 and the cover portion 18e are accommodated in the recess 16g.

In this state, as shown in FIG. 9, when the insulating plate 11 and the partition plate 16 are overlaid and fixed with bolts or the like,
The relative positional relationship between the upper surface of the insulating plate 11 and the lower surface of the partition plate 16 is restricted.

At this time, the tongue-shaped spring contact portion 18d of the tab terminal 18 of the partition plate 16 is connected to the land 13 on the upper surface of the insulating plate 11.
As a result, the tab terminal 18 and the conductor circuit 12 are electrically connected.

Simultaneously with or before this connection,
In a state where the electric wire 17 is routed on the upper surface side of the partition plate 16, the electric wire is press-connected to the press-contact blade 18 f of the tab terminal 18. At this time, the insulating coating 17a of the electric wire 17 is pressed and cut by the press contact blade 18f of the tab terminal 18, so that the conductive wire 17a inside directly contacts the press contact blade 18f, and both are electrically connected.

As described above, with the insulating plate 11 and the partition plate 16 fixed, the lower part of the tab terminal 18 and the conductor circuit 12 are electrically connected, and the upper part of the tab terminal 18 and the electric wire 17 are connected. Since it is electrically connected, there is no need to solder the tab terminal to the conductor circuit or conductor as in the past, so there is no problem of cracking, and long-term reliability of electrical connection is obtained. become.

Further, in the case of FPC or PCB, the number of assembly steps and the flow process caused by soldering in the flow process can be reduced, and the cost can be reduced.

Further, in a state where the insulating plate 11 and the partition plate 16 are fixed, they are arranged in the lower case, and the upper case 2 is covered, and the two cases 1 and 2 are closed and locked. 11 and the partition plate 16 are sandwiched between the inner end of the connector housing 1c of the lower case 1 and the inner end of the connector housing 2c of the upper case 2, and the vertical position is regulated.

In FIG. 9, four tab terminals 18 are representatively shown for convenience, but more tab terminals 18 are actually arranged in many cases. Further, in addition to those shown in the drawings, various wiring members and the like are provided in the cases 1 and 2, for example, a bus bar separate from these is disposed between the insulating plate 11 and the partition plate 16, and the upper case is also provided. Terminals, relay terminals, and the like, which are assembled to the connector housing provided in the lower case 2 and the lower case 1, are arranged, but are not shown because they are not directly related to the features of the third embodiment.

Incidentally, in the third embodiment, the insulating plate 11 and the partition plate 16 are fixed with bolts or the like, but they may be locked and fixed. Further, the insulating plate 11 and the partition plate 16 may be fixed at the same time by the locking operation of the lower case 1 and the upper case 2.

In the third embodiment, the partition plate 16
An insulating plate 11 is arranged between the lower case 1 and the partition plate 1.
6 and the upper case 2, the electric wire 17 is arranged between the partition plate 16 and the upper case 2, and the electric wire 17 is arranged between the partition plate 16 and the lower case 1. May be arranged between them.

Further, in the third embodiment, the tab portion 18a of the tab terminal 18 is not provided with the downward locking claw unlike the first and second embodiments, and the terminal holding portion is not provided. 18e is not a bottom cover, but may be configured as such. Also, the terminal holding portion 18
e does not necessarily have to be formed integrally with the partition plate 16 and may be formed separately.

[0064]

As is apparent from the above description, according to the first aspect of the present invention, the terminal holding portion is formed with the tab terminal having the tongue-shaped spring contact portion inserted and held in the terminal holding portion. When fixed at a predetermined position facing the insulating plate, the tongue-shaped spring contact portion of the tab terminal comes into elastic contact with the conductor circuit of the insulating plate, so it is necessary to solder the tab terminal to the conductor circuit. As a result, there is no problem of crack generation, and long-term reliability of electrical connection can be obtained. In the case of an FPC or a PCB, the number of assembly steps and the number of flow steps caused by soldering in the flow step can be reduced, and the cost can be reduced.

In the present invention, the hood portion and the terminal holding portion of the connector housing are integrally formed on one or both of the lock-up case and the upper case, and the terminal holding portion is provided with a tongue. If the tab portion of the tab terminal having the one-sided spring contact portion is inserted and held, the electrical connection between the tab terminal and the conductor circuit can be easily and reliably achieved when the two cases are closed. Can be.

According to a third aspect of the present invention, a terminal holding portion is formed on the partition plate, and a tab portion of a tab terminal having a tongue-shaped spring contact portion is inserted and held in the terminal holding portion. A press contact blade is provided at the tip of the portion, and the wire is pressed against the press contact blade, and when the partition plate is fixed to the insulating plate, the tongue-shaped spring contact portion of the tab terminal makes elastic contact with the conductor circuit of the insulating plate By doing so, it is not necessary to solder the tab terminal to the conductor circuit or the conductor. Therefore, even when the tab terminal is connected to the conductor circuit and the electric wire inside the case, the reliability can be improved by eliminating the problem of crack generation, and the cost can be reduced by reducing the number of assembling steps and flow steps.

[Brief description of the drawings]

FIG. 1 is an electric connection box according to a first embodiment of the present invention,
(A) is a sectional view of a main part of a connector housing part, (b)
FIG. 9 is a cross-sectional view of a main part of a connector housing portion of a modification.

FIG. 2A is an enlarged cross-sectional view showing a state in which a tongue-shaped spring contact portion of a tab terminal elastically contacts a conductor circuit of an insulating plate;
FIG. 4 is an enlarged sectional view showing a state in which a locking claw of a tab terminal is locked in an insertion hole.

3A and 3B are tab terminals of the first embodiment, wherein FIG. 3A is a perspective view and FIG. 3B is a longitudinal sectional view.

FIG. 4 is an insulating plate according to the first embodiment, wherein FIG.
FIG. 2B is a perspective view of the FPC, and FIG.

FIG. 5 is an electric junction box according to a second embodiment of the present invention,
(A) is a principal part sectional view of a connector housing part of an upper case, and (b) is a principal part sectional view of a lock part of a separate terminal holding part.

FIG. 6 is a perspective view of a separate terminal holding unit.

FIG. 7 is an insulating plate of a second embodiment, wherein (a) is a PC
FIG. 2B is a perspective view of the FPC, and FIG.

FIG. 8 is a cross-sectional view of a main part of a connector housing portion of a modified example.

FIG. 9 is an exploded perspective view of an electric junction box according to a third embodiment of the present invention.

FIGS. 10A and 10B are tab terminals according to a third embodiment, wherein FIG. 10A is a perspective view and FIG. 10B is a longitudinal sectional view.

FIG. 11 is an exploded perspective view of a conventional electric junction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower case 1c Connector housing 1d Hood part 1e Terminal holding part 2 Upper case 2c Connector housing 2d Hood part 2e Terminal holding part 10 PCB (printed circuit board) 11 Insulating plate 11a Lock hole 12 Conductor circuit 13 Insulating resin 14 FPC (Flexible printed circuit) 15 Tab terminal 15a Tab portion 15d Tongue-shaped spring contact portion 16 Partition plate 16e Terminal holding portion 17 Electric wire 17a Insulating coating 17b Conductive wire 18 Tab terminal 18a Tab portion 18d Tongue-shaped spring contact portion 18f Pressure contact blade

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Ryuji Nakanishi 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 5E023 AA04 AA09 AA26 BB12 BB22 CC22 CC26 DD25 EE03 EE07 EE10 EE33 FF15 HH08 HH23 5E077 BB13 BB31 BB33 CC22 CC26 DD14 EE05 FF01 JJ20 5G361 BA01 BA03 BA07 BB01 BB02 BC01

Claims (4)

[Claims] (1) Inside a lower case and an upper case,
An electric connection box in which an insulating plate forming a conductor circuit is accommodated, and a tab terminal is electrically connected to the conductor circuit, having a hole for inserting a tab portion of the tab terminal, and A terminal holding portion is provided which can be fixed at a predetermined position facing the insulating plate, a tongue-shaped spring contact portion is formed on the tab terminal, and the terminal is inserted and held in the terminal holding portion. An electrical junction box wherein the tongue-shaped spring contact portion of the tab terminal elastically contacts the conductor circuit of the insulating plate when the holding portion is fixed at the predetermined position. 2. A hood portion of a connector housing and a terminal holding portion are integrally formed on one or both of a lower case and an upper case, and the two cases are connected to each other in a state where tab terminals are inserted and held in the terminal holding portion. 2. The electric connection box according to claim 1, wherein the tongue-shaped spring contact portion of the tab terminal elastically contacts the conductor circuit of the insulating plate when closed. 3. An insulating plate having a conductive circuit formed thereon, an electric wire,
A partition plate located between them is disposed inside the case, a terminal holding portion is formed on the partition plate, and a press contact blade is provided at the tip of the tab portion of the tab terminal, and an electric wire is pressed against the press contact blade. On the other hand, when the partitioning plate is fixed to the insulating plate while the tab terminal is inserted and held in the terminal holding portion, the tongue-shaped spring contact portion of the tab terminal elastically contacts the conductor circuit of the insulating plate. The electrical junction box according to claim 1, wherein 4. The electrical junction box according to claim 1, wherein the conductor circuit of the insulating plate is a bus bar or a copper foil.