JP5264540B2 - Resin filled connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin filled connector in which damages of a terminal locking member installed exposed on the outside of a terminal holder can be prevented. <P>SOLUTION: Protection ribs 11a-11f for protecting a terminal locking member 17 are provided on the outside of a terminal holder 10 which constitutes a resin filled connector. When a large number of terminal holders 10 are transported in a lot, even if other terminal holders 10 try to contact the terminal locking member 17, the protection ribs 11b-11e prevent contact to the terminal locking member 17, thereby, damages of the terminal locking member 17 can be prevented. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a resin-filled connector configured to fill a connector housing with a resin material so as to be waterproof or oil-proof.

  The resin-filled connector disclosed in the following Patent Document 1 includes a female connector housing made of synthetic resin, and a terminal holder made of synthetic resin housed in the interior of the connector housing. After being accommodated in the connector housing, the connector housing and the terminal holder are integrated by injecting a resin material into the connector housing and solidifying it.

  The terminal holder is formed with a terminal accommodating chamber for accommodating, for example, a male external connection terminal. The terminal accommodating chamber is provided with a terminal locking member (lance) formed with a locking projection that is locked to one end of the male external connection terminal and cannot be removed.

  According to the resin-filled connector having the above configuration, since the resin material is filled not only in the gap between the connector housing and the terminal holder but also in the terminal accommodating chamber formed in the terminal holder, moisture and oil can enter. Can be prevented.

JP 2001-126802 A

  This type of resin-filled connector is provided with a terminal locking member for terminal locking in the terminal accommodating chamber of the terminal holder as described above, opposite to the portion where the terminal locking portion of the terminal locking member is provided. There is a configuration in which the side portion (the back portion of the terminal locking member) is exposed to the outside as it is. In this case, since the terminal holder is accommodated and used in the connector housing, there is no problem such as contact of external parts even if the back surface portion of the terminal locking member is exposed to the outside.

  However, when the back surface portion of the terminal locking member is exposed to the outside as described above, the back surface portion of the terminal locking member is in contact with other terminal holders while a large number of terminal holders are being conveyed together. Damage.

  An object of the present invention is to solve the above-mentioned problems, and to provide a resin-filled connector configured to prevent damage to a terminal locking member that is exposed to the outside of a terminal holder.

The above object of the present invention is achieved by the following configurations.
(1) a terminal holder, an external connection terminal mounted in a terminal accommodating chamber of the terminal holder, and the external connecting terminal formed in a part exposed on the outer surface of the terminal holder and mounted in the terminal accommodating chamber. A terminal holder assembly including a terminal locking member that is locked so as not to be pulled out;
A connector housing that houses the terminal holder assembly;
With
In a state where the terminal holder assembly is accommodated in the connector housing, a resin-filled connector that fills and solidifies the resin material in the connector housing,
On the outer surface of the terminal holder,
A resin-filled connector, wherein a protective rib for protecting the terminal locking member is provided.

(2) The resin-filled connector according to (1), wherein the protective rib protrudes outward from the terminal locking member.

(3) The protective rib is a longitudinal protrusion provided in proximity to the terminal locking member in parallel with the terminal locking member, according to (1) or (2), Resin filled connector.

(4) The resin-filled connector according to (2) or (3), further including a plurality of the terminal locking members, wherein the protective rib is provided between the adjacent terminal locking members. .

  According to the configuration of (1) above, since the protective rib for protecting the terminal locking member is provided on the side surface of the terminal holder, the terminal locking of the terminal holder is performed when a large number of terminal holders are transported together. Even if the surface on which the member is provided may come into contact with other terminal holders or other parts / equipment, the terminal locking member is protected by the protective rib. It is possible to prevent contact with the terminal holder or other parts / equipment.

  According to the configuration of (2) above, since the protective rib protrudes outward from the terminal locking member, other terminal holders or other parts / equipment move toward the terminal locking member. In addition, since it contacts the protective rib before contacting the terminal locking member, it is possible to prevent the terminal locking member from contacting other terminal holders or other parts / equipment.

  According to the configuration of the above (3), since the protective rib is provided in parallel to the terminal locking member and in proximity to the terminal locking member, the opening where the terminal locking member is exposed to the outside becomes narrow, and the terminal It is possible to prevent the locking member from coming into contact with other terminal holders or other parts / equipment.

  According to the configuration of (4) above, since the protective rib is provided between the adjacent terminal locking members, the terminal locking member is prevented from coming into contact with other terminal holders or other parts / equipment. To improve reliability.

  According to the resin-filled connector of the present invention, since the protective rib for protecting the terminal locking member is provided on the terminal holder constituting the resin-filled connector, when the terminal holder is transported together, the terminal locking member is Even if other terminal holders or other parts / equipment may come into contact with the provided surface, the terminal locking member is protected by the protective rib, and the terminal locking member is protected by other terminal holder or It is possible to prevent the terminal locking member from being damaged without coming into contact with other parts / equipment.

It is a top view which shows the structure of the resin filling connector which is embodiment of this invention. It is a perspective view which shows the structure of a terminal holder. It is the perspective view which looked at the terminal holder from the back surface side of FIG. It is a perspective view which shows the structure of a connector housing. It is sectional drawing of the resin filling connector which shows the form of resin filling.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a resin-filled connector according to the present invention will be described in detail with reference to the drawings.

  1 is a plan view showing a configuration of a resin-filled connector according to an embodiment of the present invention, FIG. 2 is a perspective view showing a configuration of one side of a terminal holder, and FIG. 3 is a perspective view showing a configuration of another side of the terminal holder. 4 is a perspective view showing the configuration of the connector housing, and FIG. 5 is a cross-sectional view showing a state in which the terminal holder assembly is accommodated in the connector housing.

  The resin-filled connector 1 according to this embodiment includes a terminal holder assembly 5 that accommodates an external connection terminal (not shown) in a terminal accommodation chamber 3 of a terminal holder 10, and a connector housing 7 that accommodates the terminal holder assembly 5. In the state in which the terminal holder assembly 5 is accommodated in the connector housing 7, the resin material 9 such as an epoxy resin material is filled and solidified to integrate the terminal holder assembly 5 and the connector housing 7. It has a configuration.

As shown in FIGS. 2 and 3, the terminal holder assembly 5 is constructed by assembling an external connection terminal having a wire connected in advance into a terminal holder 10 in which a synthetic resin is molded into one block.
That is, the terminal holder 10 is provided with a terminal accommodating chamber 3 as shown in FIG. 5, and an external connection terminal (none of which is shown) is accommodated in the terminal accommodating chamber 3. The resin-filled connector 1 shown in the present embodiment is fitted with the mating connector A as shown in FIG. 5, but by fitting the external connection terminals in the terminal accommodating chamber 3 as described above, the mating connector A is fitted. The terminal portion B connected to the mating connector A protrudes as shown by an imaginary line at the mating position.

  On the other hand, on the outer surface of the terminal holder 10, as shown in FIG. 2, longitudinal protective ribs 11 a to 11 f for protecting a terminal locking member (lance) 17 described later are formed, and the protective ribs 11 a to 11 c are formed. One end is connected to the connecting member 13 a and each other end is connected to one side surface of the terminal holder 10.

  The lower surfaces of the connecting members 13a, 13b and the protective ribs 11b, 11c, 11d, 11e are formed on the same surface, and a gap G is formed between the lower surface and one side surface of the terminal holder 10 as shown in FIG. Is formed.

  On the other hand, a terminal locking member 17 is provided behind the protective ribs 11b, 11c, 11d, and 11e. Each terminal locking member 17 includes an elastic arm 17a and a locking projection 17b as illustrated in FIG. The elastic arm 17a has a cantilever structure in which one end is formed integrally with the terminal holder 10, and the other end, that is, the portion where the locking projection 17b is formed is elastically bent and deformed.

  It should be noted in the above-described configuration that the terminal engagement member 17 protrudes outside the terminal engagement member 17, that is, above the terminal engagement member 17 in FIG. 2, and as shown on the right side of the guide plate 15 in FIG. The protective rib 11d is provided so as to protrude rightward from the stop member 17. The positional relationship between the other protective ribs 11b, 11c, 11e and the terminal locking member 17 is the same.

  For this reason, for example, when a large number of terminal holders 10 are conveyed together, even if the other terminal holders 10 are in contact with the terminal locking member 17, the other terminal holders 10 are in contact with the protective ribs 11a to 11d. It does not contact the terminal locking member 17 located behind the protective ribs 11a to 11d. Therefore, the terminal locking member 17 is not damaged, and the terminal can be reliably locked.

  The protective ribs 11a and 11f are formed on the side surface of the terminal holder 10 as described above. Since the two protective ribs 11a and 11f are formed integrally with the side wall of the terminal holder 10, they are not bent and deformed.

  Therefore, even if the terminal holder 10 is placed with the upper surface in FIG. 2 where the terminal locking member 17 is exposed facing down, the terminal holder 10 is supported by the two protective ribs 11a and 11f, and the terminal locking The member 17 does not touch the placement surface. Therefore, the terminal locking member 17 is not damaged, and the terminal can be reliably locked.

  On the other hand, the other side surface of the terminal holder 10 is covered with a protective wall 19 as shown in FIG. 3, and ribs 22 b and 22 b are provided at both ends of the protective wall 19. Note that a lock arm 21 a for locking the terminal holder 10 to a connector housing 7 described later is provided at a substantially central portion of the protective wall 19. Further, as shown in FIG. 2, a lock arm 21 b is also provided on one side surface of the terminal holder 10.

Next, the connector housing 7 will be described with reference to FIG.
The connector housing 7 is integrally formed of synthetic resin, and is basically formed in a box body having one end opened. The terminal holder assembly 5 is accommodated in the hollow portion 31 formed by the housing body 29.

  A reinforcing rib 33, a flange-shaped fixing portion 35 for attaching the resin-filled connector 1 to another device, a support shaft 36, and the like are integrally formed on the outer surface of the housing body 29. Also, ribs 37 are integrally formed in the hollow portion 31, but these ribs 37 form a gap between the terminal holder 5 and the inner wall surface of the housing main body 29 to smoothly dispose the resin material 9. It has a function to distribute and a function to reinforce the housing body 29.

  One end of the connector housing 7, that is, the side on which the hollow portion 31 is formed is formed in a substantially rectangular opening, but the other end is formed in a cylindrical body 39, and the end is formed in a circular opening 39a.

  And in the state which accommodated the connection terminal not shown in each terminal storage chamber 3 of the terminal holder 10, ie, the state comprised in the terminal holder assembly 5, it accommodates in the connector housing 7, and shows by an imaginary line in FIG. Thus, the opening 39a is closed by the rubber plug 39b. Although not shown in the figure, the rubber plug 39b is formed with an insertion hole through which the electric wire connected to each connection terminal is inserted, and when the opening 39a is closed by the rubber plug 39b, the electric wire It is led out of the connector housing 7 through the insertion hole.

Next, a configuration for injecting the resin material 9 will be described.
As shown in FIG. 2, a gap is provided between the connecting members 13 a and 13 b, an injection port 23 for injecting the resin material 9 into the connector housing 7 so as to communicate with the clearance, and an injection from the injection port 23. And an injection promoting portion 25 that promotes the injection of the resin material 9 (see FIG. 5).

  Next, the filling operation of the resin material 9 in this embodiment will be described. Since the resin material 9 at the time of injection is liquid, the injection direction of the resin material 9 is shown by an arrow 9a.

  When injecting the resin material 9, an injection nozzle (not shown) is inserted into the injection port 23 shown in FIG. 5, and the resin material 9 is injected into the injection port 23 as shown by an arrow 9a in FIG. As shown in FIG. 5, an injection promoting portion 25 having a downward gradient (tapered) toward the outside of the terminal holder assembly 5 is formed at the lower end of the inlet 23.

  Accordingly, the injected resin material 9 changes in the flow direction obliquely downward in the tapered injection promoting portion 25 and accumulates at the bottom portion in the connector housing 7.

  If the injection promoting portion 25 is not an inclined surface but a surface orthogonal to the resin injection direction, the resin material 9 stays in the lower portion of the injection port 23. However, by forming an inclined surface as the injection promoting part 25 as in the present embodiment, the resin material 9 naturally flows downward due to pressure and gravity, and the injection is promoted.

  The amount of the resin material 9 accumulated in the connector housing 7 is gradually increased by continuing the injection of the resin material 9, and the liquid level of the resin material 9 is gradually increased. Further, by continuing the injection of the resin material 9, as shown by an arrow 9a in FIG. 5, the resin material 9 is formed in the terminal accommodating chamber 3, between the gap g formed between the connector housing 7 and the terminal holder 3, or the like. I'm going to fill up.

  The connection terminal accommodated in the terminal accommodating chamber 3 is latched by the terminal latching member 17 provided so as to protrude into the terminal accommodating chamber 3, and the latching is loosened even if the resin material 9 is filled. There is no such thing. Then, the injection of the resin material 9 is stopped when the surface of the resin material 9 rises to near the end surface 5a of the terminal holder assembly 5, for example.

Next, by solidifying the injected resin material 9, the terminal holder assembly 5 and the connector housing 7 are integrated, and the resin-filled connector 1 is obtained. In the resin-filled connector 1, not only the gap in the connector housing 7 is blocked by the resin material 9, but also no voids or bubbles are mixed in the solidified resin material 9, so that the waterproof and oilproof effects are improved. , The strength can also be improved.
Furthermore, since the injection of the resin material 9 is performed without stagnation, the workability of the injection work is improved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, although the protective ribs 11b to 11e have a shape that protrudes outward, the terminal locking member 17 may be protected by partially or entirely covering the outside of the terminal locking member 17. .

In the embodiment, a thermoplastic epoxy resin is applied as the resin material 9, but any material can be used as long as it is cured from a softened state in a fluid state.
The connector housing 7 may be a cylinder.

DESCRIPTION OF SYMBOLS 1 Resin filling connector 3 Terminal accommodation chamber 5 Terminal holder assembly 7 Connector housing 9 Resin material 10 Terminal holder 11a-11f, 21a, 21b Protection rib 13a, 13b Connection member 15 Guide plate 17 Terminal locking member 17a Elastic arm 17b Locking Projection 19 Protective wall 21a, 21b Lock arm 23 Inlet 25 Injection promoting part 29 Housing body 31 Hollow part 33 Rib 35 Fixing part 39 Cylindrical body 39a Opening part 39b Rubber plug G, g Gap A Mating connector B Terminal part

Claims (4)

A terminal holder, an external connection terminal mounted in a terminal accommodating chamber of the terminal holder, and a part of the outer surface of the terminal holder exposed to form the external connecting terminal mounted in the terminal accommodating chamber cannot be removed. A terminal holder assembly for locking, and a terminal holder assembly including:
A connector housing that houses the terminal holder assembly;
With
In a state where the terminal holder assembly is accommodated in the connector housing, a resin-filled connector that fills and solidifies the resin material in the connector housing,
On the outer surface of the terminal holder,
A resin-filled connector, wherein a protective rib for protecting the terminal locking member is provided.   The resin-filled connector according to claim 1, wherein the protective rib protrudes outward from the terminal locking member.   3. The resin-filled connector according to claim 1, wherein the protective rib is a longitudinal protrusion provided in parallel with the terminal locking member and in proximity to the terminal locking member.   4. The resin-filled connector according to claim 2, further comprising a plurality of the terminal locking members, wherein the protective rib is provided between the adjacent terminal locking members. 5.

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