JPH1116628A - Waterproof connector and its assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the assemblage of a waterproof connector having a sealing member by electrically joining connecting terminals to an end of a flat cable having multiple conductors and enclosing the connecting terminals in a housing. SOLUTION: Multiple elastic block bodies 7 are formed and each end of conductors 3 of a flat cable 2 having the multiple conductors 3 is electrically connected to a connecting terminal 5; each facing surface of the multiple elastic block bodies 7 is brought into contact with a laminate film 4 of the flat cable 2; the connecting terminals 5 are enclosed in a housing 6 and the elastic block bodies 7 are stored in a container 8; then an locking protrusion 7e is interlocked with a locking hole 6c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof connector for a flat harness which is used in, for example, an automobile and prevents moisture from penetrating into a housing from a terminal insertion port side.

[0002]

2. Description of the Related Art A conventional waterproof connector 18 is shown in FIGS. Reference numeral 2 denotes a flat electric wire, which is formed by insulating a plurality of flat conductors 3 with a laminate film 4. Reference numeral 5 denotes a connection terminal.
Are electrically connected to the conductor 3 exposed by removing the laminate film 4 at the end of the flat electric wire 2. 20
Is a fluid filler made of, for example, a silicone resin. 1
Reference numeral 9 denotes a housing, which is provided with a filling portion into which a fluid filler is filled on a terminal insertion port side into which the connection terminal 5 is inserted.

The conventional waterproof connector 18 is formed by housing the connection terminal 5 in a housing 19 and then filling a filling portion on a terminal insertion port side with a fluid filler 20.

[0004]

However, the conventional waterproof connector 18 is very troublesome because the fluid filler 20 must be filled, and the flat electric wire 2 does not tilt until the fluid filler 20 is solidified. Operability was not good, for example, it took time to solidify the fluid filler 20.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a waterproof connector for a flat harness with improved workability, and an assembling method thereof.

[0006]

According to a first aspect of the present invention, there is provided a waterproof connector formed by arranging a plurality of conductors in a flat shape and electrically connecting the conductors. Waterproof having a flat electric wire having a connection terminal formed therein, a housing for receiving the flat electric wire by inserting the connection terminal from the terminal insertion opening, and a seal member provided in the housing and preventing penetration of moisture into the housing. In the connector, the seal member is formed of a plurality of elastic blocks, a housing portion of the elastic block is provided on the terminal insertion port side of the housing, and a facing surface of the elastic block housed in the housing is It is in contact with the surface of the flat electric wire to prevent moisture from penetrating into the housing.

According to another aspect of the present invention, there is provided a method for assembling a waterproof connector, comprising: a flat electric wire formed by arranging a plurality of conductors in a flat shape; a connection terminal; In a method of assembling a waterproof connector including a housing having a seal member and a housing, a plurality of elastic block bodies having opposing surfaces that can be separated from each other are provided, and a housing portion of the elastic block body is provided on a terminal insertion port side of the housing. After electrically connecting a connection terminal to the conductor of the flat electric wire and accommodating a part of the elastic block body in the accommodating portion, inserting the connection terminal from a terminal insertion port and accommodating it in a housing, and The elastic block body is accommodated in the housing portion, and the opposing surface of a part of the elastic block body and the opposing surface of the remaining elastic block body are brought into contact with the surface of the flat electric wire, so that moisture inside the housing can be prevented. Characterized in that to prevent the penetration.

According to a third aspect of the present invention, there is provided a method for assembling a waterproof connector, comprising: a flat electric wire formed by arranging a plurality of conductors in a flat shape; a connection terminal; In a method of assembling a waterproof connector including a housing having a seal member and a housing, a plurality of elastic block bodies having opposing surfaces that can be separated from each other are provided, and a housing portion of the elastic block body is provided on a terminal insertion port side of the housing. After electrically connecting a connection terminal to the conductor of the flat electric wire, inserting the connection terminal from the terminal insertion opening and housing the housing, and housing a part of the elastic block body in the housing portion, The elastic block body is accommodated in the housing portion, and the opposing surface of a part of the elastic block body and the opposing surface of the remaining elastic block body are brought into contact with the surface of the flat electric wire, so that moisture inside the housing can be prevented. Characterized in that to prevent the penetration.

[0009]

Embodiment

(Embodiment 1) FIGS. 1 to 4 show a first embodiment of a waterproof connector according to the present invention. Note that parts corresponding to those in FIG. 17 described above are denoted by the same reference numerals. FIG. 1 is an exploded perspective view showing the configuration of the waterproof connector 1 of the present invention. 2 is a flat electric wire, and a plurality of conductors 3 arranged in a flat shape,
It is formed insulated by the laminate film 4. Reference numeral 5 denotes a connection terminal, which is made of brass or a copper alloy and has a retaining hole (not shown). The connection terminal 5 is electrically connected to the conductor 3 exposed by removing the laminate film 4 at the end of the flat electric wire 2 by welding or soldering.

Reference numeral 6 denotes a housing made of a resin such as nylon, polybutylene terephthalate, or polypropylene. FIG. 2 shows the housing 6.
(A) is a plan view, (b) is a front view, and (c) is a bottom view. 6e is a terminal accommodation room. A lance (not shown) having a locking projection is provided in the terminal accommodating chamber 6e, and a locking hole of the connection terminal 5 is locked to the locking projection. The number of the terminal accommodating chambers 6e is equal to or greater than the number of the connection terminals 5 to be inserted. Reference numeral 6b denotes a terminal insertion opening formed in the terminal accommodating chamber 6e, and the connection terminal 5 is inserted from the terminal insertion opening 6b to the terminal accommodating chamber 6e.
Housed within. 6d is a bottom wall which is provided perpendicular to the direction in which the connection terminal 5 is inserted into the terminal insertion opening 6b,
It is formed so as not to hinder the insertion of the connection terminal 5. 6
Reference numeral a denotes an elliptical cylindrical side wall, which is provided on the bottom wall 6d so that the side into which the connection terminal 5 is inserted is opened. Reference numeral 8 denotes a housing portion for housing the elastic block body 7, which is formed on the side of the terminal insertion opening 6b so as to be surrounded by the side wall 6a and the bottom wall 6d. Reference numeral 6c denotes a locking hole, two of which are provided on the side wall 6a.

Reference numeral 7 denotes a kamaboko-shaped elastic block body.
It is made of an elastic member such as rubber or elastomer, and is housed in the housing 8 provided in the housing 6. These elastic blocks 7 and 7 are formed in a uniform size, are combined so as to sandwich the flat electric wire 2, and are provided so as to be accommodated in the accommodation section 8. Reference numeral 7a denotes a smooth opposing surface formed on one elastic block body, which is in contact with the surface of the flat electric wire 2. The opposing surface 7a is provided with a projection 7c and a hole 7d. A projection 7c and a hole 7d are also provided on the opposing surface 7a of the other elastic block body 7. The protrusions 7c and the holes 7d provided on each of the opposing surfaces are provided at an interval larger than the width of the flat electric wire 2.
The protrusions 7c of each elastic block body 7 are provided so as to match the size of the hole 7d of the opposing elastic block body 7 and the position. Reference numeral 7e denotes a locking projection provided on the outer side surface 7b of each elastic block 7, and is locked in the locking hole 6c of the housing 6. 7b is an outer surface of the elastic block body 7, and the outer surface 7b is
And 7a are brought into close contact with the surface of the flat electric wire 2 and housed in the housing portion 8 when the side wall 6 forming the housing portion 8 is formed.
The housing 6 is provided in conformity with the elliptical shape of the surface formed inside the side wall 6a so as to be in close contact with the inner surface. In this case, the two elastic block bodies 7 and 7
Are provided in the same shape with the same size, and therefore, may be located on either side when housed in the housing portion 8.

Next, a method of assembling the waterproof connector 1 will be described. First, as shown in FIG.
Is inserted into the hole 7d, and the opposing surface 7a is brought into contact with the surface of the laminate film 4 to make contact with the surface of the laminate film 4 of the flat electric wire 2. Since each hole 7d is provided so as to match the size of the projection 7c to be inserted, the two elastic block bodies 7 do not shift. Then, the connection terminal 5 is inserted into the terminal accommodating chamber 6e from the terminal insertion opening 6b and accommodated in the housing 6, and
The two elastic block bodies 7 are housed in the housing portion 8 of the housing 6, and the locking projections 7e are locked in the locking holes 6c, thereby forming the waterproof connector 1 as shown in FIG.

When each elastic block 7 is accommodated in the accommodating portion 8 of the housing 6, the side surface 7b of the elastic block 7
Engagement hole 6c in close contact with the inner surface of wall 6a of housing 6
, And the opposing surfaces 7a that come into contact with the surface of the flat electric wire 2 are also in close contact with each other, so that the penetration of moisture into the housing can be prevented. At this time, the elastic block 7
It is more preferable that the bottom surface of the housing 6 is also in close contact with the surface of the bottom wall 6d of the housing 6 to increase the portion in close contact.

The side wall 6a of the housing 6 in the present embodiment.
Is provided in an elliptical cylindrical shape, but is not limited to this shape, and may be provided in a cylindrical shape or a rectangular cylindrical shape, and the elastic block body 7 may be formed in accordance with the shape. You may. Further, in the present embodiment, the elastic block body 7 is provided by being equally divided into two. However, the present invention is not limited to equally dividing the elastic block body into two, and the opposing surfaces of the two elastic block bodies 7 having different sizes. When the housing 7 is housed in the housing portion 8 in close contact, the side surface 7b may be provided so as to be in close contact with the inner surface of the side wall 6a. Further, in the present embodiment, one projection 7c and one hole 7d are provided on the opposing surface 7a of each elastic block 7, but a plurality of projections 7c are provided on the opposing surface 7a of one elastic block 7, and the other is provided. A plurality of holes 7d may be provided on the opposing surface 7a of the elastic block body 7.

Each elastic block 7 shown in FIG.
Has an opposing surface 7a and an outer surface 7b provided in an uneven shape. Only one of the opposing surfaces 7a of the elastic block body 7 may be provided in an uneven shape, and the convex portion may be brought into close contact with the other smooth opposing surface 7a. Alternatively, only the opposing surface 7a of each of the elastic block bodies 7 may be provided in an uneven shape, and the convex portion may be brought into close contact with the opposing surface 7a on the mating side. Further, only the outer surface 7b of each of the elastic block bodies 7 may be provided in an uneven shape so that the convex portion is brought into close contact with the inner surface of the side wall 6a of the housing 6.

(Embodiment 2) FIGS. 6 and 7 show a second embodiment of the waterproof connector of the present invention. Note that parts corresponding to those in FIG. 17 described above are denoted by the same reference numerals. FIG. 6 is an exploded perspective view showing the configuration of the waterproof connector 9 of the present invention. Reference numeral 2 denotes a flat electric wire, which is formed by insulating a plurality of conductors 3 arranged in a flat shape with a laminate film 4. Reference numeral 5 denotes a connection terminal, which is made of brass or a copper alloy and has a retaining hole (not shown). This connection terminal 5
Is electrically connected to the conductor 3 exposed by removing the laminate film 4 at the end of the flat electric wire 2 by welding or soldering.

Reference numeral 10 denotes a housing, which is made of a resin such as nylon, polybutylene terephthalate, or polypropylene, and has a terminal accommodating chamber (not shown) for accommodating the connection terminals 5. A lance (not shown) having a locking projection is provided in the terminal accommodating chamber.
The engaging hole of the connection terminal 5 is engaged with the engaging protrusion.
The number of the terminal receiving chambers is equal to or greater than the number of the connection terminal receiving chambers 5 to be inserted. 10b is a terminal insertion port,
It is formed in two stages. The terminal insertion opening 10b is formed in the terminal accommodation room, and the connection terminal 5 is inserted from the terminal insertion opening 10b and accommodated in the terminal accommodation room. A bottom wall 10d is provided so as not to hinder the insertion of the connection terminal 5 into the housing 6, and is formed perpendicular to the direction in which the connection terminal 5 is inserted into the terminal insertion opening 10b. 10a is an elliptical cylindrical side wall, and on the wall 10d,
It is provided with an opening on the side where the connection terminal 5 is inserted. Reference numeral 8 denotes a housing portion 8 for housing the elastic block bodies 11 and 11 '. The housing portion 8 is located on the terminal insertion port 10b side.
It is formed by being surrounded by the side wall 10a and the bottom wall 10d. Reference numeral 10c denotes a locking hole, two of which are provided on the side wall 10a.

Reference numeral 11 denotes a Kamaboko-shaped elastic block body.
Reference numeral 11 'denotes a substantially rectangular elastic block made of an elastic member such as rubber or elastomer.
Is accommodated in the accommodating section 8 provided in the first section. These elastic blocks 11, 11 and 11 ′ are combined so as to sandwich the flat electric wires 2 and 2 and are provided so as to be accommodated in the accommodation section 8. 11a is one elastic block body 11
A flat opposing surface formed on the flat electric wire 2 comes into contact with the surface of the flat electric wire 2, and the opposing surface 11a is provided with a projection 11c. A projection 11c is also provided on the opposite surface of the other elastic block body 11. 11'a is the elastic block body 1.
1 ′, the flat electric wire 2
And a hole 11'd is provided in the facing surface 11'a. Opposing surface 1 of this elastic block body 11 '
A hole 11'd is also provided on the opposite surface 11'a opposite to 1'a. These holes 11 ′ d are provided at an interval larger than the width of the flat electric wire 2. The projection 11c of each elastic block body 11 is provided in accordance with the size and size of the hole 11'd of the elastic block body 11 '. And 11b is each elastic block body 11
And 11'b is an outer surface formed on the elastic block body 11 '. These outer surfaces 11b, 11b and 11'b are combined with the three elastic block bodies 11, 11 and 11 'to form the opposing surfaces 11b, 11b and 11'.
a, 11a and 11'a are brought into close contact with the surfaces of the flat electric wires 2 and 2 and are housed in the housing portion 8 so as to be in close contact with the inner surface of the side wall 10a forming the housing portion 8; The housing 10 is provided in accordance with the elliptical shape of the surface formed inside the side wall 10a. Reference numeral 11e denotes a locking projection provided on the outer surface 11b of each elastic block body 11, which is locked in a locking hole 10c of the housing 10.

Next, a method of assembling the waterproof connector 9 will be described. First, the protrusion 11c of the elastic block 11 is inserted into the hole 11'd of the elastic block
a, 11'a are made to abut on the surface of the laminate film 4 in a sandwich manner, and are made to abut on the surface of the laminate film 4 of the flat electric wire 2. Since the hole 11'd is provided in alignment with the size of the projection 11c to be inserted, the two elastic block bodies 11 and 11 'do not shift. Then, the connection terminal 5 is inserted into the terminal accommodating chamber through the terminal insertion opening 10b and accommodated in the housing 10, and the elastic block bodies 11 and 11 'are accommodated in the accommodating portion 8 of the housing 10 to be engaged with the locking protrusion 11e With locking hole 10c
To form a waterproof connector 9 as shown in FIG.

When the elastic block 11 and the elastic block 11 'are housed in the housing 8 of the housing 10, the outer surface 11b of the elastic block 11 and the elastic block 1
The outer surface 11'b of the housing 1 'is
And the opposing surfaces 11a and 11'a which are in contact with the surface of the flat electric wire 2 are also in close contact with each other, so that it is possible to prevent moisture from penetrating into the housing. . At this time, the elastic block bodies 11 and 1
It is more preferable that the bottom surface of 1 'is also closely attached to the surface of the bottom wall 10d of the housing 10 to increase the number of closely attached portions.

The side wall 1 of the housing 10 in the present embodiment
Although 0a is provided in an elliptical cylindrical shape, it is not limited to this shape, and may be provided in a cylindrical shape or a rectangular cylindrical shape, and each of the elastic block bodies 11 and 11 'is also formed according to the shape. You may use a thing. In the present embodiment, the protrusion 1 is provided on the opposing surface 11a of the elastic block body 11.
Although 1c is provided and two holes 11'd are provided on the opposing surface 11'a of the elastic block body 11 ', any number of holes may be provided without being limited to this number. Further, a hole 11d may be provided on the facing surface 11a, and a protrusion 11'c may be provided on the facing surface 11'a.
And the hole 11d are provided in mixture, and the projection 1 is formed on the facing surface 11'a.
1'c and the hole 11'd may be provided in mixture.

5, the opposing surface 11a and the outer surface 11b of each elastic block 11 and the opposing surface 11'a and the outer surface 11'b of the elastic block 11 '. May be provided in an uneven shape.
Only the opposing surface 11a of each of the elastic block bodies 11 may be provided in an uneven shape, and the convex portion may be brought into close contact with the smooth opposing surface 11'a of the elastic block body 11 '. Alternatively, only the opposing surface 11'a of each of the elastic block bodies 11 'may be provided in an uneven shape, and the convex portion may be brought into close contact with the smooth opposing surface 11a of the elastic block body 11. Further, only the outer surface 11b of each elastic block body 11 and the outer surface 11'b of the elastic block body 11 'are provided in an uneven shape so that the convex portion is brought into close contact with the inner surface of the side wall 10a of the housing 10. Is also good.

(Embodiment 3) FIGS. 8 to 11 show a third embodiment of the waterproof connector of the present invention. Note that FIG.
The parts corresponding to are denoted by the same reference numerals. FIG.
FIG. 1 is an exploded perspective view showing a configuration of a waterproof connector 12 of the present invention. Reference numeral 2 denotes a flat electric wire, which is formed by insulating a plurality of conductors 3 arranged in a flat shape with a laminate film 4. Reference numeral 5 denotes a connection terminal, which is made of brass or a copper alloy and has a retaining hole (not shown). The connection terminal 5 is electrically connected to the conductor 3 exposed by removing the laminate film 4 at the end of the flat electric wire 2 by welding or soldering.

Reference numeral 13 denotes a housing made of a resin such as nylon, polybutylene terephthalate, or polypropylene. FIG. 9 shows the housing 13.
(A) is a plan view, (b) is a front view, and (c) is a bottom view. 13f is a terminal accommodation room. This terminal accommodation room 13f
Inside, a lance (not shown) having a hooking projection is provided, and a hooking hole of the connection terminal 5 is hooked on the hooking projection. The number of the terminal accommodating chambers 13f is equal to or greater than the number of the connection terminals 5 to be inserted. 13b is a terminal insertion opening formed in the terminal accommodating chamber 13f. The connection terminal 5 is inserted from the terminal insertion opening 13b and accommodated in the terminal accommodating chamber 13f. Reference numeral 13e denotes a bottom wall, which is provided perpendicular to the direction in which the connection terminal 5 is inserted into the terminal insertion port 13b so as not to hinder the insertion of the connection terminal 5. Reference numeral 13a denotes an elliptical cylindrical side wall, which is provided on the bottom wall 13e so that the side into which the connection terminal 5 is inserted is opened. Reference numeral 8 denotes a housing portion 8 for housing the elastic block members 14 and 14 ', which is formed on the terminal insertion opening 13b side by being surrounded by the side wall 13a and the bottom wall 13e.
13c is a locking hole provided in the wall 13a. Reference numeral 13d denotes a locking hole provided in the bottom wall 13e. The locking hole 13d is formed between the side wall 13a facing the side wall 13a provided with the locking hole 13c and the terminal insertion port 1.
3b.

Numerals 14 and 14 'denote an elastic block of a semicylindrical shape, made of an elastic member such as rubber or elastomer, and accommodated in the accommodating portion 8 provided in the housing 13. The elastic blocks 14 and 14 ′ are formed in a uniform size, and are provided so as to be accommodated in the accommodation section 8 when combined so as to sandwich the flat electric wire 2. Reference numeral 14'a denotes a smooth opposing surface provided on the elastic block body 14 ', which is in contact with the surface of the flat electric wire 2.
Reference numeral 14'c denotes a locking projection, which is provided on the bottom surface of the elastic block 14 'so as to protrude in a direction in which the elastic block 14' is inserted into the housing 13. This locking projection 1
4'c is protruded in accordance with the position of the locking hole 13d of the housing 13. The bottom surface of the elastic block 14 'is provided so as to be in close contact with the bottom wall 13e of the housing 13 when the locking projection 14c' is locked in the locking hole 13d. Reference numeral 14'a denotes a smooth opposing surface provided on the elastic block body 14 ', which is in contact with the surface of the flat electric wire 2. 14d is an elastic block body 14
The housing 13 is locked by a locking hole 13c of the housing 13 by a locking projection provided on the outer side surface 14b. 14b is the outer surface of the elastic block 14, and 14'b is the outer surface of the elastic block 14 '. These outer side surfaces 14b and 14'b accommodate the two elastic block bodies 14 and 14 'in the accommodating portion 8 and bring the opposing surfaces 14a and 14'a into close contact with the surface of the flat electric wire 2. At this time, the accommodation portion 8
Is provided so as to be in close contact with the inner surface of the side wall 13a that forms

Hereinafter, a method of assembling the waterproof connector 12 will be described. First, as shown in FIG.
4 'is inserted into the side wall 13a of the housing 13, the locking projection 14'c is locked in the locking hole 13d, and the elastic block body 14' is stored in the storage portion 8. Next, the connection terminal 5 is inserted into the terminal accommodating chamber from the terminal insertion opening 13 b and accommodated in the housing 13. Then, the elastic block body 14 is inserted into the inside of the side wall 13a of the housing 13 while being in contact with the surface of the laminate film 4 of the flat electric wire 2, and the locking projections 14d are locked in the locking holes 13c, so that the elastic block The body 14 is housed in the housing portion 8 to form the waterproof connector 12 as shown in FIG.

Elastic Block 14 and Elastic Block 1
When the housing 4 is housed in the housing portion 8 of the housing 13, the outer surface 14b and the outer surface 14'b come into close contact with the inner surface of the side wall 13a of the housing 13 to close the locking hole 13c, and the elastic block 14 'Is also the bottom wall 13e of the housing 13.
The opposing surface 14a, which contacts the surface of the flat electric wire 2, is in close contact with the opposing surface 14'a, so that it is possible to prevent moisture from penetrating into the housing. At this time, it is more preferable that the bottom surface of the elastic block body 14 is also brought into close contact with the bottom wall 13e of the housing 13 so that the number of closely attached parts is increased.

As described above, the elastic block body 14 and the elastic block body 14 'are separately housed one by one in the housing portion 8 of the housing 13, so that the waterproof connector 12 can be more easily assembled. In the present embodiment, the elastic block 14 'is housed in the housing portion 8 first, but the elastic block 14 is housed first, and the elastic block 14' is later provided.
May be accommodated.

After the connection terminals 5 are first housed in the housing 13, the elastic block 14 and the elastic block 1
4 ′ may be separately housed in the housing portion 8 of the housing 13 one by one.

The side wall 1 of the housing 13 in this embodiment
3a is provided in an elliptical cylindrical shape, but is not limited to this shape, and may be provided in a cylindrical shape or a rectangular cylindrical shape, and the elastic block bodies 14 and 14 'are also formed according to the shape. May be used. In the present embodiment, the elastic blocks 14 and 14 'are equally divided into two parts. However, the present invention is not limited to equally dividing the elastic blocks 14 and 14' into two parts. When the opposing surface 14'a of the elastic block body 14 'is housed in the housing portion 8 in close contact, the outer surface 14b and the outer surface 14'b are provided so as to be in close contact with the inner surface of the wall 6a. Is also good. Further, in the present embodiment, the elastic block 14
Is provided with a locking hole 13d in the connector fitting surface of the housing 13 like the elastic block body 14 ', and is arranged on the connection terminal 5 side of the elastic block body 14. A locking projection 14c may be provided on the surface to be aligned with the position of the locking hole 13d. Also,
In this embodiment, the locking projection 14'c and the locking hole 13d
Are provided two by two, but are not limited to this number.
One or three or any number may be provided.

The elastic block 14 shown in FIG.
The elastic block 14 'has an opposing surface 14a and an outer surface 14b, and an opposing surface 14'a and an outer surface 14'b provided in an uneven shape. Only the opposing surface 14a of the elastic block body 14 may be provided in an uneven shape, and the convex portion may be brought into close contact with the smooth opposing surface 14'a of the elastic block body 14 '. Only the opposing surface 14a of the elastic block 14 'may be provided in an uneven shape, and the convex portion may be brought into close contact with the smooth opposing surface 14a of the elastic block 14. Further, only the opposing surface 14a of the elastic block 14 and the opposing surface 14'a of the elastic block 14 'are provided in an uneven shape, and the convex portion of the opposing surface 14a is made to have a convex / concave opposing surface 1 on the other side.
4'a may be closely contacted. Further, the outer surface 14b of the elastic block 14 and the elastic block 1
Only the outer surface 14'b of the 4 'may be provided in an uneven shape, and the convex portions of the outer surface 14b and the outer surface 14'b may be brought into close contact with the inner surface of the side wall 13a of the housing 13.

(Embodiment 4) FIGS. 13 to 16 show a third embodiment of the waterproof connector of the present invention. Note that FIG.
Parts corresponding to 7 are denoted by the same reference numerals. FIG. 13 is an exploded perspective view showing the configuration of the waterproof connector 15 of the present invention. Reference numeral 2 denotes a flat electric wire, which is formed by insulating a plurality of conductors 3 arranged in a flat shape with a laminate film 4. Reference numeral 5 denotes a connection terminal, which is made of brass or a copper alloy and has a retaining hole (not shown). The connection terminal 5 is electrically connected to the conductor 3 exposed by removing the laminate film 4 at the end of the flat electric wire 2 by welding or soldering.

Reference numeral 16 denotes a housing made of a resin such as nylon, polybutylene terephthalate, or polypropylene, and having a terminal accommodating chamber (not shown) for accommodating the connection terminals 5. A lance (not shown) having a locking projection is provided in the terminal accommodating chamber.
A hook hole of the connection terminal 5 is hooked on this projection. The number of the terminal accommodating chambers is equal to or greater than the number of the connection terminals 5 to be inserted. 16b is a terminal insertion port formed in two stages. The terminal insertion port 16b is formed in the terminal accommodating chamber, and the connection terminal 5 is connected to the terminal insertion port 16b.
And is housed in the terminal housing. Reference numeral 16d denotes a bottom wall which is provided so as not to hinder the insertion of the connection terminal 5 into the housing 16, and is provided in the terminal insertion opening 10b.
Are formed perpendicular to the direction in which the is inserted. 16a
Is an elliptical cylindrical side wall, which is provided on the bottom wall 16d so that the side into which the connection terminal 5 is inserted is opened. Reference numeral 8 denotes a housing for housing the elastic block bodies 17 and 17 '. The housing 8 is formed on the terminal insertion opening 16b side by being surrounded by the side walls 16a and the bottom wall 16d. And
16c is a locking hole. The locking hole 16c is provided in the bottom wall 16d, and is located between the side wall 16a and the terminal insertion opening 16b.

Numerals 17 and 17 'denote an elastic block of a semicylindrical shape, which is made of an elastic member such as rubber or elastomer, and is accommodated in the accommodating portion 8 provided in the housing 16. These elastic block bodies 17, 17 and 17 '
Are provided so as to be combined with each other so as to sandwich the flat electric wire 2 and to be accommodated in the accommodation portion 8. 17a is a smooth opposing surface formed on one elastic block body 17,
Reference numeral 17c denotes an engagement projection provided on the lower surface of the elastic block 17 and protrudes in a direction in which the elastic block 17 is inserted into the housing 16. The other elastic block body 17 also has a smooth opposing surface 17a, and a locking projection 17c is provided on the lower surface. 17'a is a smooth opposing surface formed on the elastic block body 17, which is in contact with the surface of the flat electric wire 2,
Reference numeral 17'c denotes a locking projection provided on the lower surface of the elastic block 17 ', and the elastic block 17'
It is projected in the direction to be inserted into. The locking projections 17c and 17'c are provided in the locking holes 1 in the housing 16.
Projection is provided in accordance with the position of 6c. Incidentally, the bottom surface of each elastic block body 17 has a locking projection 17c formed with a locking hole 16c.
Is provided so as to be in intimate contact with the bottom wall 16d of the housing 16 when locked. Elastic block 17 '
The bottom surface of the housing 16 is also provided so as to be in close contact with the bottom wall 16d of the housing 16 when the locking projection 17'c is locked in the locking hole 16c. 17b is the outer surface of the elastic block 17 and 17'b is the outer surface of the elastic block 17 '. These outer surfaces 17b, 17b and 1
7'b includes three elastic block bodies 17, 17 and 17 '
Are accommodated in the accommodating portion 8, and the facing surfaces 17a, 17a
a and the opposing surface 17'a are brought into close contact with the surfaces of the flat electric wires 2 and 2 when the side walls 16a forming the accommodating portion 8 are brought into close contact with each other.
It is provided so as to be in close contact with the inner surface of the.

Hereinafter, a method for assembling the waterproof connector 15 will be described. First, as shown in FIG. 14, the two elastic block bodies 17, 17 are individually inserted one by one into the side wall 16a of the housing 16, and the locking projections 17c are locked in the locking holes 16c. The block body 17 is housed in the housing section 8.
The two elastic blocks 17 may be inserted into the side wall 16a of the housing 16 at the same time. Next, as shown in FIG. 15, the connection terminal 5 is inserted into the terminal accommodating chamber from the terminal insertion port 16 b and accommodated in the housing 16.
Then, while the elastic block body 17 ′ is in contact with the surface of the laminate film 4 of the flat electric wire 2,
Into the side wall 16a, the locking projection 17'c is locked in the locking hole 16c, and the elastic block body 17 'is stored in the storage portion 8, so that the waterproof connector 15 as shown in FIG. It is formed.

When each elastic block 17 and elastic block 17 'are accommodated in the accommodating portion 8 of the housing 16, the outer surface 17b and the outer surface 17'b come into close contact with the inner surface of the side wall 16a of the housing 16. Also, the bottom surface of each elastic block 17 and elastic block 17 '
6 closes the locking hole 16c in close contact with the bottom wall 16d, and the respective opposing surfaces 17a in contact with the surface of the flat electric wire 2 are in close contact with the opposing surface 17'a, thereby preventing moisture from penetrating into the housing. can do.

As described above, the elastic block 17 and the elastic block 17 'are separately housed in the housing portion 8 of the housing 16, so that the waterproof connector 15 can be easily assembled. In this embodiment, the elastic block body 17 is used.
Was stored in the storage portion 8 first, but the elastic block body 1 was stored first.
The elastic block body 17 may be accommodated later by accommodating the elastic block body 7 '.

After the connection terminal 5 is first housed in the housing 16, the elastic block 17 and the elastic block 1
7 ′ may be separately housed in the housing portion 8 of the housing 16 one by one. Further, after the connection terminals 5 are first housed in the housing 16, each of the elastic block bodies 1
The elastic block 17 ′ may be housed in the housing 8 after the housing 7 is housed in the housing 8 of the housing 16. After the connection terminals 5 are first housed in the housing 16, the elastic block bodies 17 ′ are housed in the housing section 8 of the housing 16, and then each elastic block body 17 is housed in the housing section 8. You may.

The side wall 1 of the housing 16 in the present embodiment
6a is provided in an elliptical cylindrical shape, but is not limited to this shape, and may be provided in a cylindrical or multi-cylindrical shape, and the elastic block bodies 17 and 17 'are also formed according to the shape. May be used. Further, in the present embodiment, one locking projection 17c and two locking projections 17'c are provided, but the number is not limited thereto, and any number may be provided.

The elastic block 1 shown in FIG.
4 and 14 ', the opposing surface 1 of each elastic block body 17
7a and the outer surface 17b, and the opposing surface 17'a and the outer surface 17'b of the elastic block 17 'may be provided in an uneven shape. Opposing surface 17 of each elastic block body 17
Only a may be provided in an uneven shape, and this convex portion may be brought into close contact with the smooth opposing surface 17a 'of the elastic block body 17'. Further, the opposing surface 1 of each elastic block body 17 '
Only 7'a may be provided in an uneven shape, and this convex portion may be brought into close contact with the smooth opposing surface 17a of the elastic block body 17. Further, the opposing surface 17a of the elastic block body 17
Alternatively, only the opposing surface 17'a of the elastic block body 17 'may be provided in an uneven shape, and the convex portion of the opposing surface 17a may be brought into close contact with the concavo-convex opposing surface 17' on the other side. Further, the outer side surface 17b of each elastic block 17 and the elastic block 1
Only the outer surface 17b 'of the 7' may be provided in an uneven shape, and the convex portion may be brought into close contact with the inner surface of the side wall 16a of the housing 16.

[0041]

As described above, according to the waterproof connector of the first aspect of the present invention, a plurality of conductors are arranged in a flat shape, and the connection terminals are electrically connected to the conductors. A waterproof connector comprising: a flat electric wire having: a housing for receiving the flat electric wire by inserting the connection terminal from the terminal insertion opening; and a seal member provided in the housing to prevent moisture from penetrating into the housing. The seal member is formed of a plurality of elastic blocks, a housing for the elastic block is provided on the terminal insertion port side of the housing, and a facing surface of the elastic block housed in the housing is a surface of the flat electric wire. To prevent moisture from penetrating into the housing, making it easy to assemble a waterproof connector using flat electric wires. It is improved.

Further, according to the method for assembling a waterproof connector according to the second aspect of the present invention, a flat electric wire formed by arranging a plurality of conductors in a flat shape, a connection terminal, and a housing having a terminal insertion port are provided. A method of assembling a waterproof connector comprising: a sealing member; a plurality of elastic blocks having opposing surfaces which can be separated from each other; The connection terminal is electrically connected to the conductor, and a part of the elastic block body is housed in the housing portion. Then, the connection terminal is inserted from the terminal insertion port and housed in the housing. Is housed in the housing portion, and the opposing surface of some elastic blocks and the opposing surfaces of the remaining elastic blocks are brought into contact with the surface of the flat electric wire to prevent moisture from penetrating into the housing. Since, characterized in that, it can be assembled easily waterproof connector using the flat cable,
Since the elastic blocks are separately housed, the workability is further improved.

Further, according to the method for assembling a waterproof connector according to the third aspect of the present invention, a flat electric wire formed by arranging a plurality of conductors in a flat shape, a connection terminal, and a housing having a terminal insertion port are provided. A method of assembling a waterproof connector comprising: a sealing member; a plurality of elastic blocks having opposing surfaces which can be separated from each other; The connection terminal is electrically connected to the conductor, the connection terminal is inserted from the terminal insertion opening, housed in the housing, and a part of the elastic block body is housed in the housing portion, and then the remaining elastic block body Is housed in the housing part, and the opposing surface of some elastic blocks and the opposing surface of the remaining elastic blocks are brought into contact with the surface of the flat electric wire to prevent moisture from penetrating inside the housing. Since, characterized in that the, can be assembled easily waterproof connector using the flat cable, the elastic block body by being housed separately,
The workability is further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a waterproof connector of the present invention.

FIG. 2 is an explanatory view of a housing showing the waterproof connector of the present invention.

FIG. 3 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 4 is a perspective view showing a waterproof connector of the present invention.

FIG. 5 is a perspective view of an elastic block body showing the waterproof connector of the present invention.

FIG. 6 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 7 is a perspective view showing a waterproof connector of the present invention.

FIG. 8 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 9 is an explanatory view of a housing showing the waterproof connector of the present invention.

FIG. 10 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 11 is a perspective view showing a waterproof connector of the present invention.

FIG. 12 is a perspective view of an elastic block body showing the waterproof connector of the present invention.

FIG. 13 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 14 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 15 is an exploded perspective view showing the waterproof connector of the present invention.

FIG. 16 is a perspective view showing a waterproof connector of the present invention.

FIG. 17 is an exploded perspective view showing a conventional waterproof connector.

FIG. 18 is a perspective view showing a conventional waterproof connector.

[Explanation of symbols]

1, 9, 12, 15 Waterproof connector 2 Flat wire 3 Conductor 4 Laminating film 5 Connection terminal 6, 10, 13, 16 Housing 6a, 10a, 13a, 16a Side wall 6b, 10b, 13b, 16b Terminal insertion port 6c, 10c, 13c Lock hole 6d, 10d, 13e, 16d Bottom wall 6e, 13f Terminal accommodation chamber 7, 11, 11'14, 14 ', 17, 17' Elastic block body 7a, 11a, 11'a, 14a, 14'a , 17a,
17'a Opposing surface 7b, 11b, 11'b, 14b, 14'b, 17b,
17'b Side surface 7c, 11c Projection 7d, 11'd Hole 7e, 11e, 14d Locking protrusion 8 Housing 13d, 16c Locking hole 14'c, 17c, 17'c Locking protrusion 18 Waterproof connector 19 Housing 20 Flow filler

Claims (3)

[Claims] 1. A flat electric wire formed by arranging a plurality of conductors in a flat shape and having a connection terminal electrically connected to the conductor, and storing the flat electric wire by inserting the connection terminal from a terminal insertion opening. And a waterproof connector provided in the housing and provided with a seal member for preventing moisture from penetrating into the housing, wherein the seal member is formed of a plurality of elastic blocks, and is provided on a terminal insertion port side of the housing. A housing portion for the elastic block body is provided, and the opposing surface of the elastic block body housed in the housing portion is in contact with the surface of the flat electric wire to prevent moisture from penetrating into the housing. Waterproof connector. 2. A method of assembling a waterproof connector comprising: a flat electric wire formed by arranging a plurality of conductors in a flat shape; a connection terminal; a housing having a terminal insertion opening; and a seal member. A plurality of elastic blocks having opposing surfaces are provided, a housing for the elastic block is provided on the terminal insertion port side of the housing, and a connection terminal is electrically connected to the conductor of the flat electric wire. After receiving the elastic block body, the connection terminal is inserted from the terminal insertion opening and housed in the housing, and the remaining elastic block body is housed in the housing part, and the opposing surface of a part of the elastic block body A method for assembling a waterproof connector, comprising: abutting an opposing surface of a resilient block body with a surface of a flat electric wire to prevent moisture from penetrating into a housing. 3. A method for assembling a waterproof connector comprising: a flat electric wire formed by arranging a plurality of conductors in a flat shape; a connection terminal; a housing having a terminal insertion opening; A plurality of elastic blocks having opposing surfaces are provided, a housing for the elastic block is provided on the terminal insertion port side of the housing, a connection terminal is electrically connected to the conductor of the flat wire, and the connection terminal is connected to a terminal. It is inserted from the insertion opening and housed in the housing, and a part of the elastic block body is housed in the housing part, and then the remaining elastic block body is housed in the housing part, and the opposing surface of the part of the elastic block body A method for assembling a waterproof connector, comprising: abutting an opposing surface of a resilient block body with a surface of a flat electric wire to prevent moisture from penetrating into a housing.