JPH083967Y2 - Connection structure for electronic components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a structure for connecting components such as a diode and a resistor to a bus bar circuit of an electric junction box.

[Conventional technology]

FIG. 5 is an exploded perspective view showing an outline of the electric junction box E ′, and between the synthetic resin upper cover 33 and the lower cover 34,
The wiring boards 36 on which the bus bar circuits 35 are arranged are laminated in multiple layers. Further, as shown in FIG. 6 which is an enlarged view of portion B of FIG. 5, that is, a connection structure of electronic parts (diode 37), a transfer molded chip diode 37 is mounted in the housing 38 of the lower cover 34, The tip bent portion 41 of the bus bar 35 is connected to the terminal 39 of the chip diode 37 via the relay terminal 40.

However, in this connection structure, since the expensive chip diode 37 is connected using the relay terminal 40, there is a drawback that the cost becomes high. Also, the relay terminal 40
However, there is also a problem in that the number of contact points increases, the resistance increases, and heat is generated.

Therefore, in Japanese Utility Model Laid-Open No. 1-62662, a connection structure as shown in FIG. 7 is devised.

In this connection structure, a press-contacting slot 45 is formed in the tip bending portion 44 of the bus bar 43 arranged on the cover 42, and the slot 45
Further, the lead terminal 47 of the inexpensive popular diode 46 is pressure-welded, fixed with solder 48, and positioned in the chamber 49 of the cover 42.

In this connection structure, it is possible to reduce the cost of parts and heat generation, but a special tool (not shown) is required to connect the diode 46 and the bus bar 43.
There was a problem that it took time to connect. In addition, the maintainability was poor, and replacement of the diode 46 was not easy. The same applies when a resistor or the like (not shown) is used instead of the diode 46.

[Problems to be solved by the device]

In view of the above points, the present invention not only keeps the cost of parts low by using inexpensive popular electronic parts and electric parts (diodes, resistors, etc.), but also facilitates the connection of parts. It is an object of the present invention to provide a connection structure for electronic parts and the like that can be manufactured and is easy to maintain.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a connection structure for an electronic component, etc., in which a component such as a diode having a pair of lead terminals is mounted in an electrical connection box and the component is connected to a bus bar in the electrical connection box. In a case capable of accommodating the component, a receiving portion for the lead terminal and a pressure contact terminal insertion portion that opposes the receiving portion are provided, and the pressure contact terminal portion formed at the connection side tip of the bus bar is connected to the case. By disposing in the housing of the electric connection box and inserting the case into the housing, the pressure contact terminal portion intrudes into the case from the pressure contact terminal insertion portion and pressure contacts the lead terminal of the component. It employs a connection structure for electronic parts or the like characterized by connection.

[Action]

Parts such as diodes are housed in the case, and the lead terminals are engaged with the receiving portions. Then, by inserting the case into the accommodating portion of the electric junction box, the press contact terminal portion of the bus bar enters the case from the press contact terminal insertion portion and press-connects the lead terminal of the component. Therefore, the parts can be easily connected and maintained by inserting and removing the case.

〔Example〕

FIG. 1 is an exploded perspective view showing an embodiment of a connection structure for electronic parts and the like according to the present invention.

This connection structure includes a housing 2 integrally formed with a lower cover 1 of an electric connection box E as shown in the conventional example (FIG. 5), and a pressure contact terminal portion of a bus bar 3 arranged in the housing 2. 4 and a diode housing case 5 made of synthetic resin, which is also mounted in the housing 2.

Here, an opening 6 is formed in the lower end of the housing 2, and a flexible portion 9 is formed by providing a pair of slits 8 on both side walls 7, respectively. A stop hole 10 is provided. Further, the press contact terminal portion 4 of the bus bar 3 is attached to the bottom wall 11 of the housing 2 (that is, the cover 1).
A pair of insertion holes 12 are formed in the hole. The press-connecting terminal portion 4 is formed by forming a press-connecting connection slot 13 in the bent end portion 3a of the bus bar 3.

As shown in the perspective view of FIG. 2, the storage case 5 is composed of a case main body 14 and a lid portion 16 connected to each other by a hinge 15. A locking hole 18 for the second locking hole 10 is provided,
Further, two receiving plates 20 are erected parallel to each other on the left and right sides of the inner surface 19 of the bottom wall. Formed 23. The gap s between the two receiving plates 20 is set to be slightly wider than the plate thickness of the pressure contact terminal portion 4 of the bus bar 3 and serves as a guide groove 24 for the pressure contact terminal portion 4. Between the left and right receiving plates 20, 20, an abutting plate 25 for preventing backlash against the diode body 21a is provided upright orthogonal to the receiving plate 20. Further, the lid portion 16 is provided with an insertion hole 26 for the pressure contact terminal portion 4 at a position facing the guide groove 24 in the closed state, and an inner wall surface 27 and a holding portion 28 for the diode body 21a. A flexible closing frame piece 29 is provided so as to project.
The inner wall 32 of the case body 14 is provided with an engaging claw 30 for the closing frame piece 29, and the bottom wall 19 is provided with a hole 31 for releasing the closing frame piece 29.

FIG. 3 is a view corresponding to a cross section taken along the line AA of FIG. 21a
It abuts to prevent the backlash. The pressure contact terminal portion 4 of the bus bar 3 is inserted into the housing 2, and in this state, the storage case 5 is inserted into the housing 2 as indicated by arrow a.

FIG. 4 shows a state in which the storage case 5 is inserted, in which the lead terminal 22 of the diode 21 is press-fitted into the slot 13 of the press contact terminal portion 4, and the locking claw 18 of the case body 14 is locked in the housing 2. Engage 10. Here, the lead terminal 22 is
It is supported by two receiving plates 20 adjacent to each other, and the receiving plates 20
Since the pressure contact terminal portion 4 enters the space (guide groove 24), the connection is surely made.

The same effect can be obtained by using a widely-used resistor or capacitor (not shown) in place of the diode 21.

[Effect of device]

As described above, according to the present invention, the lead terminal of the component can be directly connected to the pressure contact terminal portion of the bus bar by inserting the case in which the component such as the diode is mounted into the electric connection box. It is easy to work and has good maintainability such as replacement of parts. In addition, an inexpensive popular diode can be used, and a relay terminal unlike the conventional case is not used, so that the cost of parts can be reduced, and heat generation can be suppressed by reducing the number of contact points.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view of a case in the present invention, FIG. 3 is a sectional view taken along line AA of FIG. 1, and FIG. FIG. 5 is an exploded perspective view showing a conventional electric junction box, FIG. 6 is an enlarged exploded perspective view of a B part in FIG. 5, and FIG. 7 is a perspective view showing another conventional example. E: Electrical junction box, 2 ... Housing, 3 ... Bus bar, 4 ... Pressure contact terminal part, 5 ... Storage case, 20 ... Receiving plate, 21 ... Diode, 22 ... Lead terminal, 23 ... Receiving groove, 26 ... insertion hole.

Claims (1)

[Scope of utility model registration request] 1. A connection structure for an electronic component, etc., wherein a component such as a diode having a pair of lead terminals is mounted on an electrical connection box, and the component is connected to a bus bar in the electrical connection box.
A case for accommodating the component is provided with a receiving portion for the lead terminal and a pressure contact terminal insertion portion facing the receiving portion, and a pressure contact terminal portion formed at a tip of a connecting side of the bus bar is connected to the case for the electrical connection. The pressure contact terminal portion is inserted into the case from the pressure contact terminal insertion portion by arranging it in the accommodation portion of the connection box and inserting the case into the accommodation portion to pressure connect the lead terminals of the component. A connection structure for electronic parts, etc.