JPH10243529A - Electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform engagement between a connector part and a connector by an operation lever. SOLUTION: This electric connection box is composed of a junction box 10 which is provided with a connector part 11 on the downside and whose operation lever 15 is supported rotatably by the supporting shaft 13 provided on the topside, a lower cover 20 which is arranged to cover the downside of the junction box 10 and which is provided with a connector 22 inside capably of vertical motion through a connector retaining member 23, and an upper cover 30 which is arranged to cover the topside of the junction box 10, and the connector 22 is shifted upward to engage with the connector part 11, guiding a cam follower 24 with a cam 18, by the operation of engaging the cm follower 24 provided at the connector retaining member 23 with the cam 18 provided at the operation lever 15 and rotating the operation lever 15 in one direction. In this case, a lever pusher 31 to push the operation lever 15 is projected in the position opposed to the operation lever 15 of the upper cover 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection box in which a connector of a junction box and a connector of a lower cover are securely connected (electrically connected).

[0002]

2. Description of the Related Art For example, there is known an electric connection box in which a connector portion of a junction box and a connector such as a wire harness terminal of a lower cover are detachably mounted by rotating an operation lever. This will be specifically described with reference to FIGS. 5 to 8. Reference numeral 1 denotes an electric connection box attached to the body of an automobile or the like. The electric connection box 1 includes a junction box 10 provided with a connector portion 11 on the lower surface side and an operation lever 15 rotatably supported on each support shaft 13 provided on the pair of upright portions 12 and 12 on the upper surface side. The junction box 10 is completely fitted over the inside of the junction box 10 so as to cover the lower surface thereof,
It comprises a lower cover 20 in which a connector 22 is vertically movable via a connector holding member 23 and an upper cover 30 arranged to cover the upper surface of the junction box 10.

A pair of guide pins (cam followers) 24 on both upper sides of the connector holding member 23 are provided on a pair of guide grooves (cams) 18, 18 provided on a pair of legs 17, 17 of the operation lever 15. And the operating lever 15 is moved in one direction (counterclockwise in the figure) as shown in FIGS.
The connector 22 of the lower cover 20 is moved upward by the guide pin 18 guided by each guide groove 18 to be engaged with the connector portion 11 of the junction box 10. A similar technique relating to the electric junction box 1 is disclosed in Japanese Patent Application Laid-Open No. Hei 8-47142.

[0004]

However, in the conventional electric junction box 1, the operation lever-1 shown in FIG.
5, the connector 11 of the junction box 10 and the connector 22 of the lower cover 20
The connector part 11 and the connector 2
There is a possibility that a contact failure between the two terminals may occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the connector of the junction box can be securely fitted to the connector of the lower cover. An object of the present invention is to provide an electric connection box capable of reliably preventing poor contact between both terminals.

[0006]

According to a first aspect of the present invention, there is provided a junction box in which a connector portion is provided on a lower surface side, and an operation lever is rotatably supported on a support shaft provided on an upper surface side, and a junction box of the junction box. A lower cover is provided so as to cover the lower surface side, and is provided with a connector vertically movable via a connector holding member therein, and an upper cover is provided so as to cover the upper surface side of the junction box. A cam follower provided on the connector holding member is engaged with a cam provided on the operation lever, and the operation follower is rotated in one direction to guide the cam follower with the cam to connect the connector to the connector. In the electrical junction box adapted to be moved upwardly so as to fit into the part, the operation lever is located at a position of the upper cover facing the operation lever. Pressure lever - is characterized in that projecting from the pressing portion.

In this electrical junction box, the connector portion of the junction box and the connector of the lower cover are securely fitted, and poor contact between these connector portions and both terminals of the connector is reliably prevented.

According to a second aspect of the present invention, there is provided the electrical connection box according to the first aspect, wherein a first pressing surface for pressing a surface side of the operating portion of the operating lever against a lower surface of the lever pressing portion; A second pressing surface for pressing the back surface of the operation portion of the operation lever.

In this electric junction box, when the operation of the operating lever is not performed, the second pressing surface of the lever pressing portion provided on the upper cover interferes with the back surface of the operating portion of the operating lever, so that the upper portion of the operating lever is closed. It becomes impossible to attach the cover to the junction box side, and it can be seen that the operation lever is not operated.

According to a third aspect of the present invention, there is provided the electric connection box according to the first aspect, wherein the lever pressing portion is formed by a rib integrally protruded from the upper cover.

In this electric junction box, the number of parts and the cost can be further reduced.

According to a fourth aspect of the present invention, in the electric connection box according to the first aspect, the connector holding member is formed in a quadrangular prism shape, and the connector holding member is located at a position facing the connector holding member of the junction box. Is formed, and the cam follower guided by the cam is provided in a connector holding member located in the opening.

In this electric connection box, the connector is moved in the lower cover without rattling in the vertical direction, and the connection between the connector portion of the junction box and the connector of the lower cover is reliably and smoothly performed. .

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing an electric junction box mounted on a vehicle body or the like of an automobile according to one embodiment of the present invention. FIGS. 2 to 4 show a junction box connector portion and a lower cover of the electric junction box. FIG. 5 is an explanatory view showing an operation of an operation lever for detachably operating a connector such as a wire harness terminal.

As shown in FIG. 1 to FIG.
A junction box 10 made of a synthetic resin in which a connector portion 11 is provided on a lower surface side and an operation lever 15 is rotatably supported on a pair of support shafts 13 and 13 provided on an upper surface side, and a lower surface of the junction box 10 A lower cover 20 made of a synthetic resin in which the junction box 10 is completely fitted into the upper part of the inside so as to cover the side and a connector 22 is disposed inside the connector so as to be vertically movable via a connector holding member 23; An upper cover 30 made of synthetic resin and arranged to cover the upper surface of the junction box 10.
It is composed of

On the upper surface of the junction box 10, a pair of upright portions 12, 12 are integrally formed so as to stand upright. The pair of support shafts 13 and 13 are integrally formed on the opposing inner surfaces of the pair of upright portions 12 and 12 so as to be cylindrical and horizontal. A rectangular opening 14 is formed between the pair of upright portions 12 of the junction box 10. An operation lever 15 is supported between the pair of upright portions 12 and 12 on the opening 14 via respective support shafts 13 so as to be rotatable in the left-right direction in the drawing. The operation lever 15 includes a rectangular plate-like operation unit 16 and the operation unit 1.
6, a pair of legs 17, 1 formed integrally on both sides of the rear part.
7 are formed in a plane U-shape. This pair of legs 1
Arc-shaped guide grooves (cams) 18 eccentric with respect to the respective support shafts 13 are formed on the inner surfaces of the opposed surfaces 7 and 17 respectively.

The connector holding member 23 is formed integrally with the connector 22 so as to protrude therefrom, and extends in a vertical column from substantially the center of the upper and lower surfaces of the connector 22. Connector holding member 2
The lower side of 2 is slidably and slidably supported in a rectangular tubular guide 21 formed integrally with the bottom of the lower cover 20. A pair of guide pins (cam followers) 2 are provided on both upper sides of the connector holding member 23.
And a pair of guide pins 24, 2.
Reference numeral 4 denotes a pair of guide grooves (cams) 18, 18 of an operation lever 15 through a rectangular opening 14 of the junction box 10.
Are respectively inserted and engaged.

At the position facing the operating lever 15 of the upper cover 30, a rib (lever pressing portion) 31 for pressing the front and back surfaces 16a, 16b of the operating portion 16 of the operating lever 15 is integrally formed. I have. On the lower surface side of the rib 31, a first surface 16a of the operation portion 16 of the operation lever 15 is pressed.
The pressing surface 31a and the back surface 1 of the operation unit 16 of the operation lever 15
A second pressing surface 31b for pressing the 6b side is provided. The first and second pressing surfaces 31a and 31b are formed in a U shape, and the first pressing surface 31a is set so as to be flush with the surface 16a of the operation portion 16 of the operation lever 15. I have.

According to the electric junction box 1 of the embodiment described above, when the operation lever 15 is rotated by 180 ° in one direction (counterclockwise in the drawing), the connector holding member is formed by each guide groove 18 of the operation lever 15. 23, the connector 22 in the lower cover 20 moves upward, and the connector portion 11 of the junction box 10 and the lower cover 20 are moved.
Is securely connected to the connector 22, and a contact failure between the connector portion 11 and both terminals (not shown) of the connector 22 is reliably prevented. More specifically, as shown in FIG. 2, when the operation section 16 of the operation lever 15 is not operated, the second pressing surface 31b of the rib 31 provided on the upper cover 30 is indicated by an arrow A in the figure. As described above, the upper cover 30 cannot be attached to the junction box 10 side by interfering with the back surface 16b of the operation unit 16 of the operation lever 15,
It is possible to easily know that the operation lever 15 has not been operated. Also, as shown in FIG. 3, when the operation of the operation portion 16 of the operation lever 15 is completely performed, the first pressing surface 31a of the rib 31 of the upper cover 30 becomes Since it is set at the same height as the surface 16a of the operation section 16 of the operation lever 15, the upper cover 30 can be attached to the junction box 10 side. Further, FIG.
As shown in FIG. 5, when the operation of the operation section 16 of the operation lever 15 is an intermediate operation, when the upper cover 30 is fitted to the junction box 10, the upper cover 30 extends along the first pressing surface 31 a of the rib 31 of the upper cover 30. Operating section 16 of operating lever 15
Is pressed, and the operation lever 15 rotates counterclockwise in the drawing. As a result, the connector 22 in the lower cover 20 automatically moves upward, and the connector portion 11 of the junction box 10 and the connector 2 of the lower cover 20 are moved.
2 can be completely fitted.

As described above, the operation lever of the upper cover 30 is provided.
Since the rib 31 for pressing the operation lever 15 is integrally formed at a position opposing the operation lever 15, the connector portion 11 of the junction box 10 and the connector 2 of the lower cover 20 are formed.
2 can be surely performed, and poor contact between both terminals of the connector portion 11 and the connector 22 can be reliably prevented. Further, the number of parts and the cost can be further reduced. In addition, connector 2
2 is formed in the shape of a quadrangular prism, and the connector holding member 2 of the junction box 10 is formed.
3, a rectangular opening 14 through which the connector holding member 23 is inserted is formed, and each guide pin guided by each guide groove 18 on both sides of the connector holding member 23 located in the opening 14. 24, the lower cover-2
0, the connector 22 can be smoothly moved without rattling in the vertical direction. It can be carried out.

According to the above-described embodiment, the guide groove is used as the drive cam of the operation lever for vertically moving the connector holding member for holding the connector, and the guide pin is used as the driven cam follower. It is not limited. Further, it is needless to say that the above-described embodiment can be applied to a case where a plurality of connectors of a junction box and a plurality of connectors of a lower cover are provided.

[0023]

As described above, according to the electric connection box of the first aspect of the present invention, the lever pressing portion for pressing the operation lever is provided at a position facing the operation lever of the upper cover. With this arrangement, the connector portion of the junction box can be securely fitted to the connector of the lower cover, and poor contact between these connector portions and both terminals of the connector can be reliably prevented.

According to the electric junction box of the second aspect of the present invention, the first pressing surface pressing the front side of the operating portion of the operating lever against the lower surface side of the lever pressing portion and the back surface of the operating portion of the operating lever. When the operation lever is not operated by providing the second pressing surface for pressing the side, the lever provided on the upper cover is provided.
Since the second pressing surface of the pressing portion interferes with the back surface of the operating portion of the operating lever, it becomes impossible to mount the upper cover on the junction box side, and it is possible to easily know that the operating lever has not been operated.

According to the electrical junction box of the third aspect of the present invention, the lever pressing portion is formed by the rib integrally formed on the upper cover, so that the number of parts and the cost can be further reduced. it can.

According to the electric connection box of the present invention, the connector holding member is formed in a quadrangular prism shape, and the rectangular opening for inserting the connector holding member into the junction box at a position facing the connector holding member. By forming the cam follower guided by the cam in the connector holding member located in the opening, the connector can be smoothly moved in the lower cover without rattling in the vertical direction, The connector of the box and the connector of the lower cover can be securely and easily fitted in a short time.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an electric junction box according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which an upper cover is to be mounted without operating an operation lever of the electric junction box.

FIG. 3 is an explanatory view showing a state in which an operation lever of the electric connection box is operated to attach an upper cover.

FIG. 4 is an explanatory view showing a state in which an upper cover is attached during operation of an operation lever of the electric junction box.

FIG. 5 is an exploded perspective view of a conventional electrical connection device.

FIG. 6 is an explanatory view before operation of an operation lever of the conventional electric connection device.

FIG. 7 is an explanatory diagram showing a state in which an operation lever of the conventional electric connection box is operated to attach an upper cover.

FIG. 8 is an explanatory view showing a state in which the operation lever of the conventional electric connection box is being operated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connection box 10 Junction box 11 Connector part 13 Support shaft 14 Opening 15 Operation lever 16 Operation part 16a Front surface 16b Back surface 18 Guide groove (cam) 20 Lower cover 22 Connector 23 Connector holding member 24 Guide pin (Cam follower) 30 Upper cover 31 Rib (lever pressing portion) 31a First pressing surface 31b Second pressing surface

Claims (4)

[Claims] A junction box in which a connector is provided on a lower surface side and an operation lever is rotatably supported on a support shaft provided on an upper surface side, and a junction box is disposed so as to cover the lower surface side of the junction box, and is internally provided. The cam follower provided on the connector holding member includes a lower cover having a connector provided vertically movable via a connector holding member and an upper cover disposed to cover an upper surface of the junction box. By engaging the cam provided on the operation lever and rotating the operation lever in one direction, the cam guides the cam follower by the cam to move the connector upwardly so as to be fitted to the connector portion. In the electrical junction box, a lever pressing portion for pressing the operation lever is provided at a position of the upper cover facing the operation lever. Electrical junction box according to claim. 2. The electric connection box according to claim 1, wherein a first pressing surface for pressing a surface side of an operation portion of the operation lever against a lower surface side of the lever pressing portion and operation of the operation lever. An electrical junction box, comprising: a second pressing surface for pressing a rear surface of the portion. 3. The electrical junction box according to claim 1, wherein the lever pressing portion is formed by a rib integrally formed on the upper cover. 4. The electrical connection box according to claim 1, wherein the connector holding member is formed in a quadrangular prism shape, and the connector holding member is inserted into a position of the junction box facing the connector holding member. An electric connection box, wherein an opening is formed, and the cam follower guided by the cam is provided in a connector holding member located in the opening.