JPH11111352A - Connector with buiil-in electronic part and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector with a built-in electronic part, which is intended to be small and inexpensive by reducing the number of part items. SOLUTION: An electronic component 4 is mounted while integrated bus bars 11, 12 are cut off, the electronic component 4 is contained in a cylindrical case 30 and both sides of the case 30 are blocked by blocking boards 22, 23 of a blocking body 20. The bus bars 11, 12 are inserted and molded in the blocking body 20, and external end parts of the bus bars 11, 12 are led out to the outside from the blocking boards 22, 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector having a built-in electronic component in which electronic components connected to a bus bar are accommodated in a case and a method of manufacturing the same. The present invention relates to a connector with a built-in electronic component and a method of manufacturing the same.

[0002]

2. Description of the Related Art In general, in electric wiring of an automobile, an electric connection box is frequently used for absorbing a joint included in a wire harness and protecting a circuit. The electrical junction box
The electronic component mounted on a bus bar circuit board in which a plurality of bus bars and an insulating substrate are stacked is housed in an insulating case. If only the bus bar is used, the circuit configuration becomes complicated, and even if only a part of the circuit is changed due to a difference in vehicle type or grade, the design of the entire bus bar circuit must be changed. Therefore, a connector with a built-in electronic component is connected to the electric connection box to simplify the circuit configuration.

For example, Japanese Utility Model Laid-Open No. 4-16873 discloses an electronic connection box in which parts such as a diode having a pair of lead terminals are mounted, and the parts are connected to a bus bar in the electric connection box. A connection structure, wherein a receiving portion for the lead terminal and a pressure contact terminal insertion portion facing the receiving portion are provided in a case capable of storing components, and the pressure contact terminal portion formed at the connection side end of the bus bar is provided with respect to the case. When the case is inserted into the housing of the electrical junction box and the case is inserted into the housing, the press-contact terminal portion penetrates into the case from the press-contact terminal insertion portion and press-connects the lead terminal of the component. A connection structure is disclosed.

Japanese Patent Application Laid-Open No. 9-82382 discloses that
An interconnect assembly is disclosed that does not damage an insulating coating when an electric wire connected to an electric wire welding portion of a bus bar is laid.

[0005]

A conventional connector with a built-in electronic component has a structure in which the electronic component is connected to a printed board by soldering, and the electronic component and the printed board are housed in a case. Therefore, the printed circuit board of this connector requires a space for each of the electronic component mounting portion, the soldering portion, and the external connection portion, and it is difficult to reduce the size. Further, the connector has a large number of components such as a board and the like in addition to the electronic components, and the material cost and the assembly processing cost are increased.

Further, when the connector is used outside a vehicle such as an engine room of an automobile, it is necessary that the entire case has an insert-molded waterproof structure. However, such insert molding makes the product more expensive.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a connector with a built-in electronic component which is reduced in size and cost by reducing the number of components. I do.

[0008]

A connector with a built-in electronic component according to the present invention includes a bus bar for connecting the electronic component and a closing member for closing a cylindrical case, and the closing member includes the electronic component in the case. Equipped with a pair of closing boards to store, the bus bar,
It is characterized in that both ends are derived from the closing plate of the closing body.

According to the present invention, the electronic component is connected directly to the bus bar, not to the substrate, and is housed in the case by the closing member. The case can have the minimum dimensions necessary to accommodate the electronic components.

[0010] It is preferable that the closing body has a seat portion on which a bus bar is placed, and that a closing plate is integrally formed at both ends of the seat portion.

Preferably, the electronic component has lead wires extending from both ends of the main body, and a bus bar preferably has a press contact portion having a slit formed therein for fitting the lead wire.

The method for manufacturing a connector device with a built-in electronic component according to the present invention includes: (1) a step of insert-molding a bus bar connected by a bridge into a closing body; and (2) a step of connecting an electronic component to the bus bar. 3) a step of cutting the bridge, and (4) a step of inserting and closing the closing body in which the bus bar from which the bridge has been cut is insert-molded into the case, and fixing the order. (1) to (4) It is characterized by performing in.

According to the present invention, after the electronic component is connected to the bus bar, the closing body in which only the bus bar is insert-molded is inserted and fixed in the case, so that the assembling work for storing the electronic component in the case is easy. become.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, in the connector with a built-in electronic component according to the present invention, integrally formed bus bars 11 and 12 are cut at a plurality of locations, and electronic components 4 are mounted at the cut locations. Is housed in a cylindrical case 30, and both sides of the case 30 are closed by closing bodies 20, so that the outer ends of the bus bars 11, 12 are exposed from the closing body 20.
Therefore, the connector incorporating the electronic component does not require a board, and the electronic component 4 is housed in the case 30 by the closing body 20.

FIG. 2 shows a connector incorporating such electronic components.
From the steps shown in FIG. This connector is manufactured from a bus bar frame 10 as shown in FIG. The bus bar frame 10 has a large number of H-shaped units A in which the middle portions of two bus bars 11 and 12 arranged in parallel are connected by a bridge 13 and arranged in parallel (only one is shown in the drawing). The vicinity of both ends of the bus bars 11 and 12 are also connected by bridges 14 and 14. An intermediate portion of one bus bar 11 is bent in a U-shape, and the portion and the other bus bar 12 are connected by a bridge in order to increase the rigidity of the entire bus bar. The bus bars 11 on both sides of the bent portion are formed with press-contact portions 15 and 16 erected at opposing side edges.
The other bus bar 12 also has a press-contact portion 17 that stands upright alongside the one press-contact portion 16. Pressing part 1 of them
Slits 15a, 16a, 1 are provided at the tips of 5, 16, and 17.
7a is formed.

As shown in FIGS. 3 and 4, the bus bar frame 10 is formed by insert-molding the closing body 20. The closing body 20 is composed of a semi-cylindrical seat 21 on which an intermediate portion of the bus bars 11 and 12 is placed, and closing disks 22 and 23 such as disks integrally formed on both sides of the seat 21. The diameter of one closing plate 22 is larger than that of the other closing plate 23, and the arc of the closing plate 23 having a smaller diameter and the arc of the seat 21 are identical and continuous. Double closing plate 22,
23 is a bridge 14, 1 outside the busbar unit A
The busbars 11 and 12 are located between the press-contact portions 4 and the press-contact portions 15, 16 and 17, and pass through the closing plates 22 and 23. Also,
A pedestal 2 for supporting the electronic component 4 is provided on the upper surface of the seat 21.
4, 24 are formed.

Next, as shown in FIG. 5, a portion of the bus bar 11 bent in a U-shape and a bridge 13
Is cut, the bus bars 11 and 12 are separated into three. The bus bars 11 and 12 are connected to the seat 21 of the closing body 20.
And the bus bars 11 and 12 are separated into three, so that the desired shape is maintained. Therefore, the bridge 13 and the like can be cut so as to penetrate the seat 21 by a drill or the like.

Thereafter, as shown in FIG. 6, the separated bus bars 11 and 12 are connected to each other by the electronic component 4. In the electronic component 4, lead wires 4b, 4b are led out from both ends of a main body 4a, and the lead wires 4b, 4b are bent to form slits 15 of the press-contact portions 15, 16, 17, respectively.
a, 16a, 17a and fixed by soldering or laser welding. The lead wires 4b, 4b are slits 15a, 16a, 17a of the pressure contact portions 15, 16, 17 respectively.
In order to make it easy to mount the device, it is preferable to perform cut forming in advance. In addition, the main body 4a of the electronic component 4 is supported by the pedestal 24 of the closing body 20, and does not not only tilt, but also does not apply stress to the boundary between the lead wire 4b and the main body 4a. By cutting the outer bridge 14, the bus bar frames 10 are individually separated for each unit A.

Next, the busbars 11 and 12 having the electronic components 4 connected thereto and insert-molding the closing body 20 are connected to each other.
As shown in FIG. 7, it is separately housed in a cylindrical case 30 such as a molded cylinder. The case 30 has a step between a portion 31 having a large outer diameter and a portion 32 having a small outer diameter.
And small portions 31b and 32b are formed. Case 3
The portion 31b having a small inner diameter on the side of the portion 31 having a large outer diameter of 0
8 corresponds to the length from the end face of the small-diameter closure plate 23 of the closure 20 to the opposite end of the seat 21 as shown in FIG.

The small-diameter portion 31b on the side of the large-diameter portion 31 of the case 30 is the same as the small-diameter closure plate 23 of the closure 20, and the outer periphery of the seat 21 of the closure 20 is It closely adheres to the inner wall of the portion 31b having a small inner diameter on the side of the portion 31 having a large outer diameter. Also, a portion 31a having a large inner diameter on the side of the large outer diameter 31 of the case 30 and the closing body 2
A closure plate with a large diameter of 0 is formed identically.

FIG. 8 shows the positional relationship between the case 30 and the closing body 20. The closing body 20 is inserted from the side of the case 30 having a large outer diameter. The electronic components 4 connected to the bus bars 11 and 12 that are insert-molded in the closing body 20 are housed in a case 30 in a closed state by two closing boards 22 and 23 as shown in FIG. The two closing plates 22 and 23 and the case 30 are fixed by resin lock or resin crimping such as heat welding or ultrasonic welding.

Further, a waterproof female connector (not shown) having connection terminals is fitted to the outside of both ends of the case 30. This female connector is, for example, a double ring sandwiching the inner surface and the outer surface of both ends of the case, and the outer periphery of the inner ring is provided with a seal rubber that is in close contact with the inner wall of the case. When such a female connector is fitted into the case 30, the connection terminals of the female connector are electrically connected to the bus bars 11 and 12 of the connector incorporating the electronic component, and the hermeticity is maintained by the seal rubber, and the waterproofness is maintained. Nature is achieved.

The present invention is not limited to the above embodiment, and various changes can be made within the scope of the technical matters described in the claims. For example, the outer diameters of both ends of the case may be the same, and the case is not limited to a cylindrical shape, and the shape of the closing plate is also adapted to the shape inside the case. In addition, busbar is 1
Even if it is a book, three or more books can be implemented. Further, in order to improve the rigidity of the entire bus bar, a bridge connecting each bus bar may be provided at any position. Further, if the rigidity of the entire bus bar is maintained in the process of manufacturing the electronic component built-in connector, it is not necessary to provide a bridge connecting the bus bars.

[0024]

According to the present invention, an electronic component connected to a bus bar is housed in a cylindrical case, and both ends of the case are closed by a closing plate of a closing body. Accordingly, the electronic components are directly connected by the bus bar instead of the substrate, and are housed in the case by the closing body. The case can have the minimum dimensions necessary to accommodate the electronic components. Therefore,
The number of parts is reduced, and the size and cost of the product can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a connector with a built-in electronic component according to the present invention.

FIG. 2 is a front view before cutting a bus bar constituting a connector with a built-in electronic component according to the present invention.

FIG. 3 is a front view when the closing body is insert-molded before cutting a bus bar constituting the connector with a built-in electronic component according to the present invention.

FIG. 4 is a perspective view showing a state in which a closing body is insert-molded before cutting a bus bar constituting the connector with a built-in electronic component according to the present invention.

FIG. 5 is a front view showing a state in which a bus bar constituting the connector with a built-in electronic component according to the present invention is cut at a predetermined location and the closing body is insert-molded.

FIG. 6 is a front view showing a state in which the electronic component is connected to a bus bar constituting the connector with a built-in electronic component according to the present invention, and the closing body is insert-molded.

FIG. 7 is a cross-sectional view of a case constituting a connector with a built-in electronic component according to the present invention.

FIG. 8 is an exploded perspective view, partly in section, of a connector with a built-in electronic component according to the present invention.

[Explanation of symbols]

 4: Electronic component 4a: Main body 4b: Lead wire 10: Bus bar frame 11, 12: Bus bar 13, 14: Bridge 15, 16, 17: Press-contact portion 20: Closed body 21: Seat 22, 23: Closed panel 30: Case

Claims (4)

[Claims] An electronic device comprising: a bus bar for connecting electronic components; and a closing body for closing a cylindrical case, wherein the closing body includes a pair of closing boards for storing the electronic components in the case. A connector with a built-in electronic component, wherein both ends are led out of a closing plate of a closing body. 2. The connector with a built-in electronic component according to claim 1, wherein said closing body has a seat portion on which a bus bar is mounted, and a closing plate is integrally formed at both ends of the seat portion. 3. The electronic component according to claim 1, wherein a lead wire is led out from both ends of a main body, and a pressure contact portion having a slit for fitting the lead wire is formed upright on the bus bar. The connector with a built-in electronic component according to claim 1. 4. A step of insert-molding a bus bar connected by a bridge into a closing body, a step of connecting an electronic component to a bus bar, a step of cutting a bridge, and a step of cutting an bridge. A step of inserting and closing a closed body in which the bus bar from which the bridge has been cut and insert-molding the bus bar is inserted into a case, and performing the steps in the order of (1) to (4). Device manufacturing method.