JPH07254455A - Connector having electronic part - Google Patents

Abstract

PURPOSE:To increase efficiency of assembling work, and prevent leakage of protecting filler of an electronic part. CONSTITUTION:A resin mold 51 pressed in a press-in chamber 15 isolates a cavity 13 and an electronic part housing chamber 16 from each other in an unflowing condition. The resin mold 51 is not deformed even if filler 55 is contacted, and checks leakage of the filler 55 to the cavity 13 from the electronic part housing chamber 16. The resin mold 51 is molded in a single process by insert molding, and since installation of a terminal metal fitting assembly 21 can be automated, efficiency of the whole assembling work is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector with electronic parts in which electronic parts such as capacitors are connected to terminal fittings.

[0002]

2. Description of the Related Art As a connector with an electronic component of this type, there is one disclosed in Japanese Patent Laid-Open No. 60-1775. As shown in FIGS. 11 and 12, the connector with electronic component 1 has a cylindrical rubber plug 5 passed through each of the two electric wires 3 and 3, and these electric wires 3 and 3 and a capacitor, a diode, a coil, Two lead wires 4a, 4a of the electronic component 4 such as a resistor are crimped to the two terminal fittings 2, 2.
These crimped portions are covered with rubber stoppers 5 and 5, which are passed through a cylindrical rubber cover 8 and then inserted into the housing 6 to accommodate each terminal fitting 2 in the cavity 7 and the rubber stopper 5
Is fitted in the insertion opening of the cavity 7, a rubber cover 8 is attached to the housing 6 so as to surround the electronic component 4 protruding from the housing 6, and an epoxy resin is placed in the rubber cover 8 to protect the electronic component 4. It is assembled in the process of injecting the filler 9 such as.

[0003]

In this connector 1 with an electronic component, the filler 9 is fitted to the mating terminal fitting of the terminal fitting 2 by sealing the insertion opening of the cavity 7 with the rubber plug 5. Prevents leakage to the department side,
It is designed to prevent contact failure between the terminal fitting 2 and the mating terminal fitting. However, in order to use the rubber plug 5, in addition to the work of covering the electric wire 3 and the electronic component 4 with the rubber plug 5 after the crimping, the electric wire 3 is crimped before the crimping of the electric wire 3 to the terminal fitting 2. Since it is necessary to pass the rubber plug 5 through the rubber plug 5, the number of assembling steps is inevitably increased, which hinders improvement in work efficiency. Moreover, the work of handling these rubber stoppers 5 is
Not only is it difficult to automate because it is difficult to automate, but it is extremely laborious because it is performed against the elastic force and frictional force of the rubber plug 5, and in this respect as well,
This has been an obstacle to improving the efficiency of assembly work.

Further, since the rubber stopper 5 has a low rigidity and is liable to be elastically deformed, the rubber stopper 5 is pulled and deformed when the injected filler 9 contracts as it hardens. As a result, a gap may be created between the inner circumference of the cavity 7. As a result, a situation may occur in which the filler 9 leaks through the gap between the rubber plug 5 and the cavity 7 toward the fitting portion of the terminal fitting 2 with the mating terminal. As described above, the rubber plug 5 has a problem that the leakage of the filler 9 cannot be reliably prevented.
The present invention was devised in view of the above circumstances, and aims to improve the efficiency of assembly work by automating the work and reducing the number of steps, and reliably prevent leakage of the filler for protecting electronic parts. That is the purpose. The invention of claim 2 makes it possible to protect an electronic component without using a filler, and an object thereof is to improve the efficiency of the assembling work.

[0005]

As a means for solving the above-mentioned problems, the present invention provides a terminal fitting assembly in which a connecting portion between a terminal fitting and an electric wire and an electronic component is embedded in a resin molded body by insert molding. The present invention is characterized in that the terminal fitting assembly is mounted while the resin molded body is press-fitted into the housing. According to the invention of claim 2, a terminal fitting assembly is formed by burying a connecting portion between a terminal fitting and an electric wire by insert molding and a lead wire of an electronic component connected to the terminal fitting in a resin molded body. This is characterized in that the terminal fitting assembly is mounted on the housing.

[0006]

The connector with an electronic component according to the first aspect of the present invention is divided into two impermeable spaces with the resin molded body into which the housing is press-fitted as a boundary. Therefore, when the fitting part of the terminal fitting to the mating terminal fitting and the electronic component are exposed on the opposite sides from the resin molded body, the space between the terminal fitting and the electronic component in the housing is It becomes possible to seal the space between them and prevent the filler injected into the space on the electronic component side for protecting the electronic component from leaking into the space on the terminal fitting side. In addition, when assembling this connector with electronic parts, the wire and electronic parts are connected to the terminal fitting, and the terminal fitting assembly is constructed by embedding these connecting parts in the resin molded body by insert molding, and the resin is placed in the housing. It is performed in a process of mounting the terminal fitting assembly while press-fitting the molded body. In this assembling, the molding of the resin molding having the leakage preventing function of the filler is performed by a single step of insert molding. In addition, the step of connecting an electric wire to the terminal fitting, the step of connecting an electronic component to the terminal fitting, and the step of insert molding can be automated.

In the connector with an electronic component according to the second aspect of the present invention, the entire electronic component is protected by being embedded in the resin molded body, so that the filler for protecting the electronic component is unnecessary. Therefore, the step of injecting the filler can be omitted. In addition, the assembly of this connector with electronic parts,
A terminal fitting assembly is constructed by connecting the wire and the electronic component to the terminal fitting, and embedding the connecting part of the terminal fitting and the wire and the entire electronic component in the resin molded body by insert molding. This is done in the process of mounting. In this assembly, the step of connecting the electric wire to the terminal fitting, the step of connecting the electronic part to the terminal fitting, and the insert molding step can be automated.

[0008]

The invention according to claim 1 reduces the number of assembling steps by using the means of insert molding, and it is possible to automate many of the assembling steps. Therefore, there is an effect that the efficiency of the assembling work can be improved. In addition, when the housing is divided into two spaces, that is, the terminal fitting side and the electronic component side, and the filler for protecting the electronic component is injected into the space on the electronic component side, the space between the two spaces is unlikely to be deformed. Since it is partitioned by pressing the resin molded body into the space, there is no fear that the resin molded body will be deformed due to shrinkage due to hardening of the filler and the sealing function will be deteriorated. There is an effect that can be surely prevented from leaking.

According to the second aspect of the present invention, since the injection of the filler is not necessary, the number of assembling steps is reduced, and many of the assembling steps can be automated. Therefore, there is an effect that the efficiency of the assembling work can be improved.

[0010]

【Example】

<Example 1> Hereinafter, Example 1 embodying the present invention will be described with reference to FIG.
It will be described with reference to FIGS. The electronic component-equipped connector 11 according to the present embodiment includes a housing 12 and a terminal fitting assembly 21 mounted on the housing. The housing 12 is made of a non-conductive synthetic resin, and two elongated cavities 13 and 13 having two chambers having an opening 14 on the front end surface of the housing 12 are formed in parallel on the front end side of the cavities 13 and 13. One press-fitting chamber 15 communicating with the rear end portion is formed. The press-fitting chamber 15 has a rectangular cross section as a whole, and includes a first tapered portion 15a continuous to the rear ends of the cavities 13 and 13, and a second tapered portion 15b located rearward of the first tapered portion 15a. . Further, on the rear end side of the press-fitting chamber 15, an electronic component accommodating chamber 16 having an insertion opening 17 opened over the entire rear end surface of the housing 12 is formed.

The terminal fitting assembly 21 is composed of two female terminal fittings 22, 22, two electric wires 31, 31, one electronic component 41, and one resin molding 51. The terminal fitting 22 is formed by bending a conductive metal plate material, has a terminal 23 formed at a front end portion to be mated with a mating male terminal fitting (not shown), and an electric wire 31 at a rear end portion. A wire barrel 24 and an insulation barrel 25 for connecting the above are formed. The electric wire 31 is formed by applying a non-conductive resin coating 33 to the outer circumference of a conductive core wire 32, and the resin coating 33 is peeled off at the connection end to expose the core wire 32. . The electronic component 41 is a capacitor used to prevent noise from entering a device such as a computer, and has two lead wires 42, 42 extending in a bent state from the front surface thereof. The lead wire 42 is connected to the terminal fitting 22 together with the electric wire 31 as described later. The resin molded body 51 is made of a non-conductive synthetic resin material, has a block shape having a size and shape that can be tightly press-fitted into the press-fitting chamber 15 of the housing 12, and has a first taper portion 15 a of the press-fitting chamber 15. And tapered surfaces 51a and 51b corresponding to the second tapered portion 15b. In the resin molded body 51, a portion where the electric wire 31 of the terminal fitting 22 and the electronic component 41 are connected, that is, the wire barrel 24, the insulation barrel 25, and a peripheral portion thereof are embedded.

Next, the procedure for assembling the connector with electronic components of this embodiment will be described. First, the two electric wires 31,
The core wire 32 is exposed by peeling off the resin coating 33 at the connection end portion of 31, and the core wire 32 of this electric wire 31 is positioned in the wire barrel 24 and the portion of the resin coating 33 is positioned in the insulation barrel 25. The front end portions of the two lead wires 42, 42 of the electronic component 41 are aligned with the electric wires 31, 31 and positioned in both barrels 24, 25. In this state, the barrels 24, 25 are caulked to make the terminal fitting 2
2, 22 and the electric wires 31, 31 and the lead wire 4 of the electronic component 41
2, 42 are pressure-bonded to integrate these members (FIG. 2).

Next, the connecting portion of the terminal fitting 22, the electric wire 31 and the electronic component 41 is housed in a mold (not shown) and insert molding is performed. By this insert molding, the terminal fitting assembly 21 having a structure in which the connecting portion of the terminal fitting 22 with the electric wire 31 and the electronic component 41 is embedded in the resin molded body 51 is formed (FIG. 3). The terminal fitting assembly 21 is inserted into the housing 12 from the insertion opening 17 with the terminal 23 of the terminal fitting 22 facing forward. As a result, the terminal 23 is inserted into the cavity 13, the resin molded body 51 is fitted into the press-fitting chamber 15, and the electronic component 41 is inserted.
Is accommodated in the electronic component accommodating chamber 16, and the electric wire 31 extends from the insertion port 17 to the rear of the housing 12 (FIG. 5).

When the resin molded body 51 is fitted into the press-fitting chamber 15 in the operation of inserting the terminal fitting assembly 21, the resin molded body 51 is strongly pushed to be press-fitted into the press-fitting chamber 15. When the resin molded body 51 is press-fitted into the press-fitting chamber 15, the outer surface of the resin molded body 51 and the inner surface of the press-fitting chamber 15 are in a tight state with no gap. As a result, the cavity 13 accommodating the terminal 23 and the electronic component 41 are
The electronic component storage chamber 16 in which is stored is inseparably isolated. When the resin molded body 51 is press-fitted, it is preferable to push the rear surface of the resin molded body 51 by using a jig (not shown) without holding the electric wire 31 or the electronic component 41. It is possible to avoid the buckling of 31 and the bending of the lead wire 42 of the electronic component 41.

Thereafter, a filler 55 such as epoxy resin is injected from the insertion opening 17 of the housing 12 to fill the electronic component housing chamber 16 so as to surround the electronic component 41 (FIG. 6).
As described above, the assembling of the connector 11 with an electronic component of this embodiment is completed. The injected filler 55 hardens and holds the electronic component 41 immovably, and prevents the lead wire 42 from being deformed and the electronic component 41 from coming off the terminal fitting 22 due to vibration or impact. Here, although the filler 55 shrinks when it hardens, the resin molded body 51 in contact with the filler 55 is unlikely to be deformed, unlike a material such as rubber that easily deforms. It has high rigidity. Therefore, the resin molded body 51 is not deformed by the contraction of the filler 55, and the state in which the resin molded body 51 and the press-fitting chamber 15 are in close contact is maintained. This reliably prevents the uncured filler 55 from leaking to the cavity 13 side through the gap formed between the resin molded body 51 and the press-fitting chamber 15.

Further, the resin molded body 5 which is a means for preventing the filler 55 from leaking from the electronic component housing chamber 16 to the cavity 13.
Since the work of providing 1 is performed in a single step of insert molding, the number of steps is smaller than that in the case of using a conventional rubber stopper. Further, the work of connecting the electric wire 31 and the electronic component 41 to the terminal fitting 22 can be performed in a single process. Moreover, the electric wire 3 is connected to the terminal fitting 22.
It is possible to automate the step of connecting 1 and the electronic component 41 and the step of insert molding. Therefore,
The work of assembling the connector 11 with an electronic component of this embodiment can be performed with extremely high efficiency.

In this embodiment, the lead wire 42 is connected to the wire barrel 24 and the insulation barrel 25 for connecting electric wires.
Since they are crimped together and crimped together, the connection part dedicated to the lead wire is not required, and the shape of the terminal fitting 22 is simplified. In addition, the resin molded body 51 of the terminal fitting assembly 21 includes the terminal fittings 22 and 22 and the electronic component 4.
Since 1 is integrated so as to maintain a fixed positional relationship,
When inserting the terminal fitting assembly 21 into the housing 12 manually, the inserting work can be easily performed. Further, the housing 12
Before mounting on the
Even if an external force that changes the positional relationship of the
There is no risk that the terminals 23, 23 will not be parallel to each other and the lead wire 42 will not be bent.

Since the connecting portion between the terminal fitting 22 and the electric wire 31 and the lead wire 42 is embedded in the resin molded body 51, even if an external force in the pulling direction or the bending direction acts on the electric wire 31 or the electronic component 41. The connection part is destroyed and the electric wire 31
The lead wire 42 does not come off from the terminal fitting 22.
Since the resin molded body 51 is formed with the tapered surfaces 51a and 51b, when press-fitting into the press-fitting chamber 15, the press-fitting work can be easily performed without impairing the tightness between the resin molded body 51 and the press-fitting chamber 15. To be able to do. Further, since the resin molded body 51 is tightly fitted in the press-fitting chamber 15, the filler 55 is contracted due to the curing of the filler 55.
Even if a gap is formed between the electronic component housing chamber 16 and the electronic component housing chamber 16 and water from the outside enters the gap, the water in the electronic component housing chamber 16 flows into the cavity 13 side through the press-fitting chamber 15. There is no.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. The connector 61 with an electronic component of this embodiment is composed of a housing 62 and a terminal fitting assembly 71 mounted on the housing 62, similarly to the connector 11 with an electronic component of the first embodiment. The housing 62 is the same as in the first embodiment.
The cavity 63, the press-fitting chamber 65, and the electronic component housing chamber 66 are provided. Like the first embodiment, the terminal fitting assembly 71 is also composed of the terminal fitting 72, the electric wire 81, the electronic component 85, and the resin molded body 88. However, in order to connect the electric wire 81 to the terminal fitting 72 of the present embodiment. Wire barrel 7
4 and insulation barrel 75, electronic components 8
A dedicated electronic component connecting portion 76 for connecting 5 is provided between the wire barrel 74 and the terminal 73.

Terminal fitting assembly 71 in this embodiment
First, the core wire 82 of the electric wire 81 and the resin coating 83 are assembled.
Wire barrel 74 and insulation barrel 7 respectively
Work to crimp and crimp. After that, the tips of the two lead wires 86, 86 of the electronic component 85 are fitted into the fitting grooves 76a, 76a of the electronic component connecting portions 76, 76, and the portions are fixed by soldering. After assembling the electric wire 81 and the electronic component 85 to the terminal fitting 72 in this way,
Similar to the first embodiment, the terminal fitting 7 is formed by insert molding.
It suffices to embed the connection portion between the wire 2, the electric wire 81, and the electronic component 85 in the resin molded body 88, and the assembly of the terminal fitting assembly 71 is completed as described above.

Subsequent mounting work of the terminal fitting assembly 71 to the housing 62 is the same as that of the first embodiment, and therefore its explanation is omitted. Also in the connector 61 with electronic parts of the present embodiment, the connector 11 with electronic parts of the first embodiment
Similarly, the situation in which the uncured filler 89 leaks to the cavity 63 side through the gap formed between the resin molded body 88 and the press-fitting chamber 65 is reliably prevented, and the number of steps is small. At the same time, the process can be automated and the assembling work can be performed with high efficiency. <Third Embodiment> Next, a third embodiment of the present invention will be described. In the above-described embodiment, only the connecting portion of the terminal fitting, the electric wire and the electronic component is embedded in the resin molded body, but the entire electronic component may be embedded in the resin molded body. In this case, the filler for protecting the electronic component is not required, so that the filler injection work is not necessary and the number of working steps is reduced. As a result, it is possible to further improve the work efficiency. Note that when the filler is no longer necessary, it is not necessary to take measures to prevent the filler from leaking to the cavity side. Therefore, the resin molded body need not necessarily be press-fitted into the housing. Also, if waterproofing measures are taken into the cavity, the resin molded body may be press-fitted. However, if the resin molded body is not press-fitted, the sealing material should be fitted on the outer periphery of the resin molded body. do it.

<Other Embodiments> The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the present invention. (1) In the above embodiments, the case where the electronic component is a capacitor has been described, but the present invention can be applied to a connector including a member other than a capacitor such as a diode, a coil, and a resistor. (2) In the above embodiment, the case where the terminal metal fitting is of the female type has been described, but the present invention can also be applied to a connector with an electronic component to which a male terminal metal fitting is mounted. (3) In the above embodiment, the case where the two terminal fittings are integrated by one resin molded body has been described. However, according to the present invention, the connecting portions for the electric wire and the electronic component are different for each terminal fitting. It may be embedded in the resin molded body.

(4) In the above embodiment, in order to connect the electric wire to the terminal fitting, the insulation barrel is provided in addition to the wire barrel, and the resin coating is also crimped and crimped. However, according to the present invention, Do not crimp the resin coating directly to the terminal metal without providing an insulation barrel,
The resin coating may be embedded in the resin molded body so as to be fixed to the terminal fitting through the resin molded body. (5) In the present invention, the shape of the resin molded body is not limited to the rectangular shape described in the above embodiment, and the shape of the resin molded body can be arbitrary. Further, the shape of the contact portion of the resin molded body with the inner surface of the housing can be arbitrary, and the shape of the fitting portion of the press-fitting portion is increased to improve the airtightness between the resin molded body and the press-fitting chamber. It is possible.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a terminal fitting, an electric wire, and an electronic component according to a first embodiment.

FIG. 2 is a side view showing a state in which a terminal fitting, an electric wire and an electronic component are assembled.

FIG. 3 is a side view of the terminal fitting assembly.

FIG. 4 is a sectional view of the housing.

FIG. 5 is a sectional view showing a state in which the terminal fitting assembly is attached to the housing.

FIG. 6 is a sectional view of a state in which a filler is injected and assembly is completed.

7 is a sectional view taken along line AA of FIG.

FIG. 8 is a perspective view of the terminal fitting, the electric wire, and the electronic component according to the second embodiment.

FIG. 9 is a perspective view of a terminal fitting assembly.

FIG. 10 is a cross-sectional view showing a state in which assembly is completed.

FIG. 11 is an exploded perspective view of a conventional example.

FIG. 12 is a partial cross-sectional view of a conventional example.

[Explanation of symbols]

 11 ... Connector with electronic parts 12 ... Housing 21 ... Terminal fitting assembly 22 ... Terminal fitting 31 ... Electric wire 41 ... Electronic part 51 ... Resin molding

Claims (2)

[Claims] 1. A terminal fitting assembly is formed by burying a connecting portion of a terminal fitting, an electric wire and an electronic component in a resin molded body by insert molding, and the terminal metal fitting is press-fitted into a housing. A connector with an electronic component, wherein the assembly is mounted. 2. A terminal fitting assembly is formed by burying a connecting portion between a terminal fitting and an electric wire and an entire electronic component connected to the terminal fitting in a resin molded body by insert molding, and the terminal fitting assembly is a housing. A connector with an electronic component, which is mounted on a.