JPH0419740Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field This invention consists of a pair of housings that can be connected to each other, each of which has connecting terminals that make an electrical connection when they are connected. The present invention relates to an electric wire connection structure in which electric wires are respectively connected to terminals.

(2) Conventional technology Conventionally, in such a structure, a male connecting terminal is attached to one housing, and a female connecting terminal is attached to the other housing, and when both housings are connected, both connecting terminals fit into each other. Generally, the electrical connection is made using the

(3) Problems to be solved by the invention However, with the above-mentioned conventional device, the male and female connection terminals may be misaligned, making it impossible to ensure a secure fit. Connection may become difficult due to damage or breakage, and electrical connection may not be established. Furthermore, since it requires male and female terminals, it is disadvantageous in terms of manufacturing, transportation, and management.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire connection structure in which electrical connection can be reliably achieved using connection terminals of the same shape.

B. Structure of the invention (1) Means for solving the problem According to the invention, both housings are provided with inclined surfaces that make surface contact when they are coupled, and both inclined surfaces have openings that correspond to each other. The connecting terminals are formed of an elastic material and have a connecting portion bent at an angle greater than the inclination angle of the inclined surface at the tip thereof, and are made of an elastic material. can be attached to the housing.

(2) Effect When the two housings are not connected, the ends of the connecting parts of each connection terminal protrude from the sloped surface, and when the two housings are connected, the connecting parts contact each other before the sloped surfaces come into contact with each other. When the inclined surfaces come into surface contact with each other, both connecting portions are deflected until they are flush with the inclined surfaces, thereby exerting a resilient force, thereby ensuring surface contact and electrical connection. Moreover, it is sufficient to attach connection terminals of the same shape to both housings.

(3) Embodiment Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. First, in FIGS. 1 and 2 showing an embodiment of the present invention, a male housing 1 has a plurality of, for example, nine connection terminals 2. are each attached in a state connected to the electric wire 3, and a plurality of, for example, nine connection terminals 2 having the same shape as the connection terminal 2 are attached to the female housing 4, and the two housings 1 and 4 are connected to each other. At times, each connecting terminal 2 of the male housing 1 makes surface contact with a corresponding connecting terminal 2 of the female housing 4, thereby establishing an electrical connection.

Both housings 1 and 4 are basically formed into a cylindrical shape from an electrically insulating material such as synthetic resin. A cylindrical protrusion 6 coaxially and integrally protrudes from the surface 5 of the male housing 1 facing the female housing 4, and the tip of the protrusion 6 has an inclined surface 7 with a tapered side surface. A fitting hole 8 is provided coaxially. On the other hand, on the surface 9 of the female housing 4 facing the male housing 1, there is a fitting recess 10 into which the protrusion 6 can be fitted.
are coaxially provided, and a fitting protrusion 11 that can fit into the fitting hole 8 is provided at the closed end of the fitting recess 10.
is installed protrudingly. Moreover, the side surface of the fitting protrusion 11 is formed as a tapered inclined surface 12 that can come into surface contact with the inclined surface 7 .

The male housing 1 is integrally provided with engaging portions 13 extending in the axial direction from the outer edge of the opposing surface 5 along the outer peripheral surface of the female housing 4 at a plurality of locations in the circumferential direction, for example, at two locations on one diameter line. An engaging pawl 14 is provided on the outside of the tip of each of these engaging portions 13. On the other hand, at the end of the outer peripheral surface of the female housing 4 on the side of the male housing 1, a locking hole 15 of a size large enough to insert the engaging claw 14 between the female housing 4 and the outer periphery of the female housing 4 is formed. Letter-shaped locking part 16
are provided integrally. Therefore, by engaging the engaging claw 14 inserted through the locking hole 15 with the locking portion 16, the connected state of both housings 1 and 4 is maintained, and the inclined surface 7 of both housings 1 and 4 is maintained. ,12
The engaging pawl 14 engages the locking portion 1 in a state in which they are in surface contact with each other.
6.

A plurality of, for example, eight openings 17 are provided in the inclined surface 7 of the male housing 1 at equal intervals in the circumferential direction, and mounting holes 18 connected to the openings 17 are provided in the male housing 1 in parallel with the axis. Each is drilled. On the other hand, on the inclined surface 12 of the female housing 4, a plurality of openings 19, for example eight, corresponding to the openings 17 are provided at equal intervals in the circumferential direction, and mounting holes 20 are provided which are connected to these openings 19. The female housing 4 is bored parallel to the axis.
Moreover, the cross-sectional shape of each of the mounting holes 18, 20 is, for example, square.

The connection terminal 2 is made of an elastic conductive metal and is fitted and fixed into each of the mounting holes 18 and 20. Moreover, the protrusions 21 and 22 protruding from the inner surface of the intermediate portion of each of the mounting holes 18 and 20 are engaged with the recesses 23 provided in each of the connection terminals 2, thereby preventing the connection terminals 2 from slipping out from the mounting holes 18 and 20. .

Referring to FIGS. 3 and 4 together, a connecting portion 24 that faces the openings 17 and 19 when attached to the mounting holes 18 and 20 is formed by folding back at the tip of the connecting terminal 2. Ru. The folding angle β of the connecting portion 24 is set to be larger than the inclination angle α of each of the inclined surfaces 7 and 12 in a natural state, and the connecting terminal 2 connects the base of the connecting portion 24 to the opening edges of the openings 17 and 19. It is attached to the attachment holes 18 and 20 in such a manner that it is aligned with the figure. Therefore, in a natural state, that is, in a state where the inclined surfaces 7 and 17 are not in contact with each other, the tip of the connecting portion 24 facing each opening 17 and 19 protrudes from the inclined surfaces 7 and 12.

Further, at the tip of the connecting portion 24, there are inclined surfaces 7, 12.
A bent part 25 is provided which is bent inward to prevent it from digging in between the openings 17 and 19. Guide parts 26 and 27 opposite to the bent part 25 are provided at the opening edges of the openings 17 and 19 corresponding to the bent part 25. extends inward and is integrally provided.

The connecting terminal 2 is attached to the mounting hole 18 so that the base of the connecting portion 24 faces the opening 17 on the radially outer side of the male housing 1, and the base of the connecting portion 24 faces the opening 17 on the radially outer side of the female housing 4. connection part 2
4 is attached to the attachment hole 20 with the base thereof facing the opening 19.

Next, to explain the operation of this embodiment, when the male housing 1 and the female housing 4 are fitted together, each connection terminal 2 of the male housing 1 is The connecting portion 24 of the female housing 4 and the corresponding connecting portion 24 of each connecting terminal 2 of the female housing 4 are in surface contact with each other. Then, when the inclined surfaces 7 and 12 are fitted together until they come into surface contact with each other, the connection portions 2 of the connection terminals 2 and 2 corresponding to each other
4 and 24 are bent until their folding angle becomes the same value as the inclination angle α of the inclined surfaces 7 and 12. Therefore, both the connecting portions 24, 24 exhibit elastic force and come into elastic surface contact to achieve a reliable electrical connection.

Since both the connecting terminals 2, 2 are in surface contact in this manner, there is no need to worry about bending or breaking the connecting terminals as in the conventional case, and a reliable wire connection can be obtained. Furthermore, since the connecting terminals 2 having the same shape are attached to both the housings 1 and 4, the manufacturing, transportation, and management of the connecting terminals 2 are facilitated.

In another embodiment of the present invention, the male housing 1' and the female housing 4' may have a rectangular prism shape, as shown in FIG.

C. Effects of the invention As described above, according to the invention, both housings are provided with sloped surfaces that make surface contact when they are coupled, both sloped surfaces are provided with openings that correspond to each other, and the connection terminals are , it is formed of an elastic material and has a connecting portion bent at an angle larger than the inclination angle of the inclined surface at the tip, and is attached to the housing with the connecting portion facing the opening. Since the connection terminals can be reliably brought into surface contact and a reliable electrical connection can be obtained, and connection terminals of the same shape can be used for both housings, this is advantageous in terms of manufacturing, transportation, and management.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, where Figure 1 is a perspective view, Figure 2 is a sectional view taken along the line - - in Figure 1, and Figure 3 is an enlarged view of a portion of Figure 2. , FIG. 4 is a sectional view corresponding to FIG. 3 in a state where the coupling is released, and FIG. 5 is a perspective view of another embodiment of the present invention. 1, 1', 4, 4'... Housing, 2... Connection terminal, 3... Electric wire, 7, 12... Inclined surface, 17,
19...opening section, 24...connection section.

Claims (1)

[Scope of utility model registration request] In a wire connection structure in which a pair of housings that can be connected to each other are each attached with a connection terminal that makes an electrical connection when the housings are connected, and an electric wire is connected to each connection terminal, both housings have surface contact when they are connected. Each slope is provided with a
Both inclined surfaces are provided with mutually corresponding openings, and the connecting terminal is made of an elastic material and has a connecting portion at its tip that is folded back at an angle greater than the inclination angle of the inclined surfaces. A wire connection structure characterized in that the wire connection structure is attached to a housing with the connection portion facing the opening.