JP3750347B2 - Relay connector and electrical junction box provided with the relay connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a relay connector and an electrical junction box provided with the relay connector, and more particularly, a circuit easily using a fuse insertion part and / or an unused relay insertion part protruding from the outer surface of a case. It is possible to change and add a circuit.
[0002]
[Prior art]
In general, an electrical junction box used for automobiles is commonly used among vehicle types having different specifications (grades) and destinations (shipping destinations). Therefore, the number and type of fuse insertion parts and / or relay insertion parts provided in the electrical junction box are determined according to the model of the highest clade. Depending on the model, fuses with different capacities can be inserted in the fuse insertion part. In addition, some of the fuse insertion portions and / or relay insertion portions are left in an unused state in which no fuse or relay is inserted, thereby providing a degree of freedom.
[0003]
[Problems to be solved by the invention]
However, depending on the grade of the car, many unused fuse insertion portions and / or relay insertion portions may remain, and in that case, many fuse insertion portions and / or relay insertion portions are wasted. .
Further, if there are more fuse insertion portions and / or relay insertion portions than the number of fuses and relays to be inserted, there is a risk of mistaken insertion, which is likely to cause erroneous connection.
[0004]
The present invention has been made in view of the above-described problems, and it is an object of the present invention to make effective use of unused unused fuse insertion portions and / or relay insertion portions and to prevent the occurrence of erroneous connections.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention firstly is a relay connector attached to an electrical junction box in which a fuse insertion part or / and a relay insertion part protrudes from the outer surface of the case,
Mounted on the front end surface of the fuse insertion portion and / or relay insertion portion by mounting one end side matched with the shape of the front end surface, and provided with a fitting portion for an external wire connection connector on the other end side A relay bus bar including a first terminal portion connected to a terminal in the fuse insertion portion or / and a relay insertion portion and a second terminal portion connected to a terminal in the wire connection connector ;
The first terminal portion projects outward from the housing, and the second terminal portion is housed inside the connector fitting portion, thereby providing a relay connector.
[0006]
Specifically, one end of the relay connector housing matches the shape of the front end surface of the fuse insertion part and / or relay insertion part of the electrical junction box, and the relay connector matches the front end surface of the fuse insertion part and relay insertion part. So that it does not interfere with the fuse insertion part adjacent to the relay connector mounting part, the fuse inserted into the relay insertion part, and the relay. The relay connector housing is provided with either a lock frame or a lock claw on the fuse insertion part and the relay insertion part, while the other of the lock frame and the lock claw is provided on the outer surface of the fuse insertion part and the relay insertion part. The relay connector is lock-coupled to the fuse insertion portion and the relay insertion portion. Further, the connector fitting portion on the opposite side to the connection side with the fuse insertion portion and the relay insertion portion is made slightly larger than the connection side with the fuse insertion portion and the relay insertion portion to provide a lock portion with the connector. Yes.
[0007]
The first terminal portion of the relay bus bar is provided at the same pitch as the terminal pitch on the fuse insertion portion and / or the relay insertion portion side, and the second terminal portion is provided at the same pitch as the terminal pitch of the external wire connection connector. ,And,
A part of the relay bus bar connected to the terminal in the relay insertion part is refracted in the middle part, and the second terminal part is arranged on the same line,
The first terminal portion protrudes outward from the housing, and the second terminal portion is accommodated inside the connector fitting portion.
That is, the first terminal portion is inserted into the fuse insertion portion and the relay insertion portion in a state where the housing is mounted in contact with the peripheral edge of the front end opening of the fuse insertion portion and relay insertion portion, Since it is necessary to connect, the dimension required for this connection is protruded.
[0008]
The first terminal portion and the second terminal portion of the relay bus bar have a tab shape. The tab-shaped male terminal does not necessarily have to be a female terminal, and may correspond to a terminal shape on the fuse or / and relay insertion portion side to be connected or a terminal shape in the external electric wire connection connector.
[0009]
In addition, the present invention secondly attaches the above-described relay connector to an unused empty fuse insertion portion or / and relay insertion portion, and connects the external wire connection connector connected to the relay connector to the fuse insertion portion or / and relay. An electrical junction box having a relay connector connected to an internal circuit of the electrical junction box via a terminal in an insertion portion is provided.
[0010]
When using the relay connector described above, the grade and destination of the automobile are different, and when a circuit change or circuit addition occurs, the unused fuse insertion part or / and the relay insertion part are used. Circuit change and circuit addition can be performed easily. Further, if there are no unused unused fuse insertion portions and relay insertion portions, or there is a decrease, it is possible to eliminate the possibility of erroneous connection by mistakenly inserting fuses and relays.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
1 to 6 show an embodiment of the present invention. A fuse insertion portion 11 and a relay insertion portion 12 project from the upper surface 10A of the upper case 10 of the electrical junction box. In the drawing, only two fuse insertion portions and one relay insertion portion are shown, but other fuse insertion portions and relay insertion portions are provided on the upper case 10A (not shown) on the upper case.
[0013]
The fuse insertion portion 11 has two terminal insertion holes (not shown) formed at a required pitch on the bottom surface of the box-shaped frame 1 having an upper surface opening protruding from the upper surface 10A of the case. A female terminal provided in an internal circuit accommodated in a case formed by an upper case 10 and a lower case (not shown) is positioned below the terminal insertion hole. In this embodiment, the said female terminal consists of a relay female terminal connected to the tab of the bus bar accommodated in the case.
[0014]
On the other hand, the relay insertion portion 12 includes terminal holes 3a to 3d on the upper surface of the block-shaped frame 3 protruding from the case upper surface 10A, and is accommodated inside the case corresponding to the terminal holes 3a to 3d. The relay female terminal 4 connected to the tab of the bus bar is accommodated.
[0015]
As shown in FIG. 2A, when the fuse 2 is attached to the fuse insertion portion 11, it is inserted into the box-shaped frame 1 of the fuse insertion portion 11 from the tab 2a of the fuse 2 as in the conventional case, and the insulating resin The base portion 2b is locked in the box-like frame 1 and the tab 2a is connected to the relay female terminal. When the relay 5 is attached to the relay insertion portion 12, the relay terminals 5b1 to 5b4 protruding from one end face of the base portion 5a of the insulating resin of the relay 5 are inserted into the terminal holes 3a to 3d, and the relay female terminal 4 The base 5a is mounted on the frame 3 by connecting.
[0016]
On the other hand, when the fuse insertion portion 11 and / or the relay insertion portion 12 is not attached with a fuse or a relay and becomes empty, the relay connector 20 is connected to the required fuse insertion portion and relay insertion portion as shown in FIGS. , 30 are attached, and the external wire connection connectors 150A and 150B are connected to the internal circuit as shown in FIGS. 5 and 6 so that the circuit can be added or changed.
[0017]
The first relay connector 20 attached to the fuse insertion portion 11 is fixed in a state where a pair of relay bus bars 23 and 24 are passed through the bottom surface 21 a of the housing 21. These relay bus bars have a flat plate shape, and the first terminal portions 23a and 24a and the second terminal portions 23b and 24b at both ends are respectively tab-shaped male terminals.
[0018]
The lower part 21 b of the housing 21 of the relay connector 20 is made to correspond to the outer diameter of the box-shaped frame 1 of the fuse insertion portion 11, and the bottom surface 21 a is mounted just on the front end surface of the box-shaped frame 1. With this shape, when a fuse is inserted into an adjacent fuse insertion portion, the relay connector 20 does not interfere with the fuse. The upper portion 21c of the housing 21 has a larger outer diameter than the lower portion 21b, and a connector fitting portion 21d is provided inside.
[0019]
In addition, the lock claw 7 protrudes from the lower end of the lower portion 21 b, while the lock frame 6 protrudes from the outer surface of the box-shaped frame 1 of the fuse insertion portion 11 so that the relay connector 20 can be locked to the fuse insertion portion 11. I have to. Further, a connector locking claw 21e is projected from the inner surface of the connector fitting portion 21d.
[0020]
The first terminal portions 23a and 24a of the relay bus bars 23 and 24 projecting from the housing bottom surface 21a of the relay connector 20 can be connected to the relay female terminal inside the case with the relay connector 20 attached to the fuse insertion portion 11. Only protruding. The second terminal portions 23b and 24b are located in the connector fitting portion 21d and can be inserted into the terminal accommodating chamber in the external wire connecting connector 150A fitted in the connector fitting portion 21d to be connected to the terminals in the connector. The dimensions are set.
[0021]
The second relay connector 30 attached to the relay insertion portion 12 is substantially the same as the first relay connector 20, and the housing 31 has the same outer diameter as the front end surface of the relay insertion portion 12 and is mounted on the front end surface for lock coupling. The inside of the housing 31 is formed as a connector fitting portion 31d. Four relay bus bars 33, 34, 35, and 36 are attached to the bottom surface of the housing 31 so as to penetrate therethrough. The first terminal portions 33a to 36a and the second terminal portions 33b to 36b are provided at both ends of the relay bus bars 33 to 36, respectively, and are tab-shaped male terminals, and the first terminal portions 33a to 36a protrude from the bottom surface, The two terminal portions 33b to 36b protrude into the connector fitting portion 31d.
[0022]
While the terminal holes 3a and 3b provided in the relay insertion portion 12 are provided in a direction orthogonal to the terminal holes 3c and 3d, the terminal holes 3a and 3b, 3c and 3d are opposed to each other with a required width, Since the terminal insertion portions 151 of the external wire connection connector 150B fitted to the relay connector 30 are provided in parallel, the relay bus bars 33 to 36 are bent in the housing 31 so that the second terminal portions 33b to 36b are on the same line. They are arranged side by side at a constant pitch.
[0023]
The first relay connector 20 and the second relay connector 30 have an empty fuse insertion portion 11 and a relay insertion portion 12, and when it is desired to change or add a circuit, the empty fuse insertion portion 11 and the relay insertion It is attached to the part 12. That is, as shown in FIGS. 5 and 6, the housings 21 and 31 are mounted on the fuse insertion part 11 and the relay insertion part 12, and the first terminal part of each relay bus bar fixed to the housing is connected to the fuse or relay. Connect to the terminal inside the case connected to the terminal. Next, the connectors 150A and 150B connected to the external electric wires 100A and 100B are fitted into the connector fitting portions 21d and 31d of the housings 21 and 31, respectively, and the second terminal portion of the relay bus bar is connected to the terminal in the connector.
[0024]
In addition, in the 1st and 2nd relay connector of the said embodiment, although the 2nd terminal part connected with an external electric wire connection connector is made into the male terminal, it is made into the female terminal as shown in FIG. 7, and the exterior which accommodated the male terminal You may enable it to connect with an electric wire connection connector. In FIG. 7, the same members as those of the above embodiment are denoted by the same reference numerals and description thereof is omitted.
[0025]
Further, the relay connector is not limited to a form that is attached to one fuse insertion part or relay insertion part, and may be a form that can be attached to a plurality of adjacent fuse insertion parts or relay insertion parts.
[0026]
【The invention's effect】
As is clear from the above description, according to the present invention, a relay connector is attached to an unused empty fuse insertion part or / and relay insertion part provided on the outer surface of the case of the electrical junction box, and a wire is connected to the relay connector. By connecting the connector connected to the terminal, it is possible to easily add or change the circuit by effectively using the empty fuse insertion part and / or relay insertion part, further expanding the flexibility and versatility of the electrical junction box. There is an effect that can be done.
[0027]
Also, by eliminating or reducing the empty fuse insertion part and relay insertion part, it is possible to prevent the fuse and relay from being erroneously inserted into another fuse insertion part and relay insertion part. Further, if the empty fuse insertion part and the relay insertion part are left in an empty state, there is a risk of water intrusion and dust intrusion. However, there is an advantage that the occurrence of water immersion can be prevented by eliminating the empty space.
[Brief description of the drawings]
1A and 1B are partial perspective views of an electrical junction box according to an embodiment of the present invention.
2A and 2B are perspective views showing a state in which a fuse and a relay are attached to the electrical junction box of FIG.
3 is a perspective view showing a state in which the relay connector is attached to an empty fuse insertion portion of the electrical junction box of FIG. 1. FIG.
4 is a perspective view showing a state in which a relay connector is attached to an empty relay insertion portion of the electrical junction box of FIG. 1. FIG.
5 is a perspective view showing an operation of connecting the connector of the electric wire terminal to the relay connector attached to the fuse insertion portion of FIG. 3. FIG.
6 is a perspective view showing an operation of coupling the connector of the electric wire terminal to the relay connector attached to the relay insertion portion of FIG. 4. FIG.
FIG. 7 is a perspective view showing a modification of the relay connector.
[Explanation of symbols]
6 Lock frame 7 Lock claw 11 Fuse insertion part 12 Relay insertion part 20 First relay connector 21 Housing 23, 24 Relay bus bar
30 2nd relay connector 31 Housing 33-36 Relay bus bar 100A, 100B Electric wire 150A, 150B Connector for external electric wire connection

Claims (3)

A relay connector attached to an electrical junction box having a fuse insertion part and / or a relay insertion part protruding from the outer surface of the case,
Mounted on the front end surface of the fuse insertion portion and / or relay insertion portion by mounting one end side matched with the shape of the front end surface, and provided with a fitting portion for an external wire connection connector on the other end side A relay bus bar including a first terminal portion connected to a terminal in the fuse insertion portion or / and a relay insertion portion and a second terminal portion connected to a terminal in the wire connection connector ;
The said 1st terminal part is made to protrude outside the said housing, and the 2nd terminal part is accommodated in the inside of the said connector fitting part, The relay connector characterized by the above-mentioned . The relay connector according to claim 1, wherein the first terminal portion and the second terminal portion of the relay bus bar have a tab shape . The relay connector according to claim 1 or 2 is attached to an unused empty fuse insertion portion or / and relay insertion portion, and the external wire connection connector connected to the relay connector is installed in the fuse insertion portion or / and relay insertion portion. An electrical junction box having a relay connector connected to the internal circuit of the electrical junction box through the terminal of the terminal.

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