JP3063595B2 - Panel mount type connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel-mounting connector which is mounted with a flange overlapped on a panel.

[0002]

2. Description of the Related Art A panel mounting type connector is made of a synthetic resin material and has a shape in which a flange is integrally provided on an outer periphery of a connector housing in which terminal fittings are mounted. The panel-mounted connector is mounted on the panel by superposing the flange on the panel, penetrating the bolt mounted on the flange through the panel, and tightening the nut from the back. In the mounted state, the sealing member provided on the flange is brought into close contact with the panel to achieve waterproofing.

[0003]

However, in a conventional panel mounting type connector, a synthetic resin flange is attached to a metal panel in a state of being in direct contact with the metal panel.
Therefore, when the temperature of the panel becomes high, the heat is directly transmitted to the flange, and the synthetic resin may be thermally degraded and the flange may be thinned. In this case, the elastic deformation amount of the seal member changes to cause a problem such as a decrease in sealing performance.

The present invention has been made in view of the above circumstances, and has as its object to suppress the transfer of heat from a panel to a flange.

[0005]

According to a first aspect of the present invention, there is provided a connector housing made of a synthetic resin having a flange formed on an outer periphery thereof, and attached to a metal panel in a state where the flange is overlapped. , A feature is provided in which a metal spacer is provided on a surface of the flange corresponding to the panel so as to abut the panel to hold the flange in a non-contact state with the panel.

A second aspect of the present invention is characterized in that, in the first aspect, the spacer is provided integrally with the flange by molding.

[0007] The third aspect of the present invention is the first or second aspect.
The present invention is characterized in that the spacer is formed in a continuous ring shape over the entire circumference of the connector housing.

[0008]

In the panel-mounting connector according to the first aspect of the present invention, when the panel-mounting connector is mounted on the panel, the flange is brought into non-contact with the panel by the spacer. For this reason, when the temperature of the panel rises, the heat is absorbed by the spacer, and the amount of heat transferred from the panel to the flange is smaller than when the flange directly contacts the panel. Therefore, it is possible to prevent the flange from becoming thinner due to thermal deterioration of the synthetic resin material caused by heat transfer from the panel.

According to the second aspect of the present invention, even if a bending force acts on the flange, the deformation of the flange hardly occurs due to the rigidity of the spacer.

According to the third aspect of the present invention, the heat capacity of the spacers can be increased as compared with the case where a plurality of spacers are provided in a dotted manner, and the effect of suppressing heat transfer to the flange is improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

<Embodiment 1> Hereinafter, Embodiment 1 embodying the present invention will be described with reference to FIGS. The panel-mounted connector 10 of the present embodiment includes a connector housing 11 made of a synthetic resin material. The connector housing 11 has two hoods 12 and 12 formed integrally and has a substantially outer periphery. Square flange 13
Are integrally formed.

The connector housing 11 has a hood 1
A terminal fitting (not shown) is attached so as to protrude into the inside 2, and a bolt 14 is integrally attached to a position near the four corners of the flange 13. Further, a sealing groove 16 having an annular path along the peripheral edge of the flange 13 is formed on a surface 15 of the flange 13 corresponding to the panel 20, and a rubber annular sealing member 17 is formed in the sealing groove 16. It is fitted and fitted. The seal member 17 is arranged so as to surround the two hood portions 12, 12, and in the gap between the panel 20 and the flange 13, the intrusion of water and foreign matter from the mounting hole 21 to the outside of the seal member 17 is prevented. Thus, the wiring and devices inside the panel are protected.

A metal spacer 18 is provided on the flange 13.
Are provided in an integrated state by molding. The spacer 18 has a rectangular frame shape along the inner peripheral edge of the seal groove 16 as a whole, and includes four linear portions 18A and a circular connecting portion 18B connecting these linear portions 18A. The straight portions 18A are arranged along the straight edges of the flange 13, and the connecting portions 18B are arranged at four corner positions of the flange 13. A bolt through hole 18C through which the bolt 14 passes is formed in the connecting portion 18B.

The spacer 18 is integrally attached to the flange 13 by being molded when the connector housing 11 is molded. The periphery of the flange 13 made of synthetic resin is reinforced by the metal spacer 18. It is in a state. The spacer 18 provided on the flange 13 in this manner projects over the entire circumference on the surface 15 of the flange 13 corresponding to the panel 20. The protrusion dimension of the sealing member 1 from the corresponding surface 15
7 is set smaller than the protrusion size.

Next, the operation of the present embodiment will be described. The panel mounting type connector 10 is mounted on the panel 20 by mounting two hood portions 12, 1 in mounting holes 21 of the panel 20.
2 and the bolt 14 is passed through the bolt hole 22 of the panel 20, and the nut 23 is screwed into the bolt hole 22 from the back side and tightened.

In the mounted state, as shown in FIG. 2, the sealing member 17 elastically bends and comes into close contact with the panel 20 to exhibit a sealing function. On the inner peripheral side of the seal member 17, the corresponding surface 15 of the flange 13 is provided.
From the spacer 18 comes into contact with the panel 20,
This prevents the flange 13 from directly contacting the panel 20.

When the temperature of the panel 20 rises, the heat is first absorbed by the metal spacer 18, and the heat is transferred to the flange 13 as the temperature of the spacer 18 rises. Become so. That is, the panel 20
Since the heat is transmitted from the panel 20 to the flange 13 indirectly through the spacer 18, the amount of heat transferred from the panel 20 to the flange 13 is smaller than when the flange 13 directly contacts the panel 20. I can do it. This allows
The thinning of the flange 13 due to the thermal deterioration of the synthetic resin material caused by the heat transfer from the panel 20 is suppressed.

Since the spacer 18 is integrated with the flange 13 by molding, the flange 13
Even if a bending force acts on the flange 13, the rigidity of the spacer 18 makes it difficult for the flange 13 to be deformed. In addition, since the spacers 18 are arranged in an annular shape over the entire circumference of the flange 13, the effect of preventing deformation is enhanced. This prevents problems such as a reduction in sealing performance due to deformation of the flange 13.

Further, since the spacers 18 are arranged along a long path over the entire circumference of the flange 13, the heat capacity of the spacers 18 as a whole is smaller than when a plurality of spacers 18 are provided in a dotted manner. Largely secured. As a result, the heat absorption performance of the spacer 18 is enhanced, and the effect of suppressing heat transfer to the flange 13 is improved.

Further, when the spacer 18 is in contact with the panel 20, the flange 13 is further extended to the panel 20.
Cannot be approached. Thereby, the nut 23
Excessive tightening is prevented, the elastic bending of the seal member 17 is made uniform over the entire circumference, and a good sealing function is exhibited.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. The panel-mounted connector 30 of the present embodiment differs from the first embodiment in the configuration of the spacer. Other configurations are the same as those in the first embodiment, and thus the same configurations are denoted by the same reference numerals and description of the structures, operations, and effects will be omitted.

The spacer 38 of the present embodiment has a structure which also serves as the metal bolt 34. That is, the head 34A of the head 34A and the male screw portion 34B constituting the bolt 34 is embedded in the flange 13 by molding, but the male screw portion 34B of the head 34A extends. The end on the side (seat surface side) is provided so as to protrude from the flange 13, and this protruding portion functions as a spacer 38.

When the panel-mounted connector 30 is mounted on the panel 20, as shown in FIG.
Is in contact with the panel 20 so that the flange 13 does not directly contact the panel 20. Note that the sealing member 17 exerts a sealing function by causing elastic bending as in the first embodiment.

Also in this embodiment, heat is transmitted from the panel 20 to the flange 13 by the spacer 38, that is, the bolt 3
4, the flange 13 is prevented from becoming thinner due to the heat transfer from the panel 20.

In this embodiment, the spacer 38 is a bolt 3
4, the number of components is reduced as compared with the case where both are separate components, and cost reduction can be achieved.

In the case where the flange is in direct contact with the panel, when the flange is warped so as to expand toward the panel, the end of the flange may be lifted from the panel and the sealing performance may be deteriorated. was there. But,
In the present embodiment, since the flange 13 is separated from the panel 20 by the amount of the protrusion of the spacer 38, when the flange 13 is warped so as to expand toward the panel 20,
Even if the nut 23 is properly tightened until the bolt 34 contacts the panel 20, the sled can be released. Therefore, the flange 13 does not separate from the panel 20 more than the regular size, and a decrease in sealing performance due to warpage of the flange 13 is prevented.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention.

(1) In the first embodiment, the spacer 18
Has been described as being integrated with the flange 13 by molding, but according to the present invention, a spacer formed in a process different from that of forming the flange may be attached to the flange.

(2) In the first embodiment, the spacer 18
Has been described as having a continuous frame shape, but according to the present invention, a plurality of spacers may be arranged at intervals. As an example of an arrangement method, there is a method of arranging linear spacers along vertical and horizontal linear edges of a flange.

[Brief description of the drawings]

FIG. 1 is a perspective view of a panel-mounted connector and a panel according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged cross-sectional view according to the first embodiment.

FIG. 3 is a perspective view of a panel-mounted connector and a panel according to a second embodiment.

FIG. 4 is a partially enlarged cross-sectional view of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Panel mounting type connector 11 ... Connector housing 13 ... Flange 18 ... Spacer 20 ... Panel

Continuation of the front page (56) References JP-A-56-121272 (JP, A) JP-A-5-62737 (JP, A) JP-A-6-76873 (JP, A) JP-A-9-73946 (JP) , A) Japanese Utility Model Application Sho-59-139974 (JP, U) Japanese Utility Model Application Hei 1-165584 (JP, U) Japanese Utility Model Utility Model 4-63696 (JP, U) Japanese Utility Model Application Sho 63-152988 (JP, U) 3-25908 (JP, B2) Jikken Sho 53-42782 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13 / 73,13 / 74 H01R 13/46 304

Claims (3)

(57) [Claims] 1. A device, comprising: a connector housing made of synthetic resin having a flange formed on an outer periphery thereof; and being mounted in a state where the flange is superimposed on a metal panel, a surface of the flange corresponding to the panel. A panel-mounted connector provided with a metal spacer for holding the flange in a non-contact state with the panel by contacting the panel. 2. The panel-mounted connector according to claim 1, wherein the spacer is provided integrally with the flange by molding. 3. The connector according to claim 1, wherein the spacer has a continuous ring shape over the entire circumference of the connector housing.
Or the panel mounting type connector according to claim 2.