CA2034963C - Sealed electrical connector and seal ring therefor - Google Patents
Sealed electrical connector and seal ring thereforInfo
- Publication number
- CA2034963C CA2034963C CA 2034963 CA2034963A CA2034963C CA 2034963 C CA2034963 C CA 2034963C CA 2034963 CA2034963 CA 2034963 CA 2034963 A CA2034963 A CA 2034963A CA 2034963 C CA2034963 C CA 2034963C
- Authority
- CA
- Canada
- Prior art keywords
- seal ring
- housing
- locking groove
- female housing
- female
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
ABSTRACT
SEALED ELECTRICAL CONNECTOR AND SEAL RING THEREFOR
A sealed electrical connector comprises a male housing and a female housing with a seal ring disposed in a cavity in the female housing. The seal ring comprises a rubber ring body having projecting ribs on an outer peripheral surface thereof and a plurality of projecting ribs on an inner peripheral surface thereof. Around the circumference of the ring body and projecting thereinto are a plurality of locking grooves. The locking grooves are positioned to correspond with a like plurality of latch projections extending upwardly from a bottom wall in the female cavity and in engagement with the seal ring grooves.
SEALED ELECTRICAL CONNECTOR AND SEAL RING THEREFOR
A sealed electrical connector comprises a male housing and a female housing with a seal ring disposed in a cavity in the female housing. The seal ring comprises a rubber ring body having projecting ribs on an outer peripheral surface thereof and a plurality of projecting ribs on an inner peripheral surface thereof. Around the circumference of the ring body and projecting thereinto are a plurality of locking grooves. The locking grooves are positioned to correspond with a like plurality of latch projections extending upwardly from a bottom wall in the female cavity and in engagement with the seal ring grooves.
Description
SEALED ELECTRICAL CONNECTOR AND SEAL RING THEREFOR
1 FIELD OF THE INVENTION: 2034963 The present invention relates to a seal ring and a sealed electrical connector using same.
BACKGROUND OF THE INVENTION:
In a waterproof electrical connector having male and female housings, a seal ring for sealing the male and female housings is generally mounted on the outer surface of the male housing, and the resultant structure is inserted into the female housing.
In such structure, since the seal ring is exposed on the outer surface of the male housing, the seal ring may be susceptible to external influences. For example, the seal ring may be damaged during assembly, thus impairing the waterproof properties. In order to solve this problem, a waterproof connector having a cylindrical outer wall for protecting a seal ring on a male housing is Xnown (Japanese Publication No. 1-51031). In this connector, however, the male housing has a relatively high profile, and the connector is bulky, resulting in inconvenience.
In order to protect the seal ring and provide a compact connector, an assembly obtained by mounting a seal ring on the inner wall surface of a female housing is also known (Japanese Laid-Open ~tility Model Application No. 55-31201).
In this case, unless the male housing is inserted into the female housing with care, the seal ring may be folded, removed, or deformed, thereby greatly impairing the waterproofing effect.
SUMMARY OF THE INVENTION:
It is therefore an object of the present invention to reduce the conventional drawbacks described above, and to implement a new structure of a seal ring and a new structure of a connector housing mounted with the seal ring, to thereby prevent de~radation of the sealing effect at the tlme of assembly of the connector. ~' , -2- z();~4963 1 BRIEF DESCRIPTION OF THE DRAWINGS:
Figure 1 is a plan view showing an arrangement of a seal ring according to the present invention.
Figure 2 is a sectional view of the seal ring of Figure 1, as seen along viewing lines II-II.
Figure 3 is a sectional view showing an arrangement of an electrical connector according to the present invention, using the seal ring of Figure 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT:
A seal ring according to the present invention is shown in Figures 1 and 2.
Referring to Figures 1 and 2, the seal ring comprises a rubber ring body 1, projections, such as ribs 2, formed on the outer peripheral surface of the ring body, and projections, such as ribs 3, formed on the inner peripheral surface of the ring body. A locking groove 4 is formed into the ring body and between the projections 2 and 3. In the illustrated embodiment, a total of six locking grooves are formed along the circumference of the seal ring.
Since these locking grooves 4 are to be respectively engaged with latch projections 12 (see Figure 3) formed in a cavity of a female housing 11 for receiving a male housing 10, the locking grooves 4 are formed at positions respectively corresponding to the latch projections, as will be indicated hereinbelow.
The locking groove 4 has a groove 4A extending in a direction perpendicular to the direction of depth of the locking groove 4. The groove 4A corresponds to a projection 12A (see Figure 3) extending from the corresponding latch pro~ection 12 formed in the cavity of the female housing 11.
In the illustrated embodiment, the projections 2 and 3 are formed at substantially corresponding, opposite positions.
Figure 3 shows a sealed connector ~ncluding the seal ring described above.
.. . . ..
.
1 FIELD OF THE INVENTION: 2034963 The present invention relates to a seal ring and a sealed electrical connector using same.
BACKGROUND OF THE INVENTION:
In a waterproof electrical connector having male and female housings, a seal ring for sealing the male and female housings is generally mounted on the outer surface of the male housing, and the resultant structure is inserted into the female housing.
In such structure, since the seal ring is exposed on the outer surface of the male housing, the seal ring may be susceptible to external influences. For example, the seal ring may be damaged during assembly, thus impairing the waterproof properties. In order to solve this problem, a waterproof connector having a cylindrical outer wall for protecting a seal ring on a male housing is Xnown (Japanese Publication No. 1-51031). In this connector, however, the male housing has a relatively high profile, and the connector is bulky, resulting in inconvenience.
In order to protect the seal ring and provide a compact connector, an assembly obtained by mounting a seal ring on the inner wall surface of a female housing is also known (Japanese Laid-Open ~tility Model Application No. 55-31201).
In this case, unless the male housing is inserted into the female housing with care, the seal ring may be folded, removed, or deformed, thereby greatly impairing the waterproofing effect.
SUMMARY OF THE INVENTION:
It is therefore an object of the present invention to reduce the conventional drawbacks described above, and to implement a new structure of a seal ring and a new structure of a connector housing mounted with the seal ring, to thereby prevent de~radation of the sealing effect at the tlme of assembly of the connector. ~' , -2- z();~4963 1 BRIEF DESCRIPTION OF THE DRAWINGS:
Figure 1 is a plan view showing an arrangement of a seal ring according to the present invention.
Figure 2 is a sectional view of the seal ring of Figure 1, as seen along viewing lines II-II.
Figure 3 is a sectional view showing an arrangement of an electrical connector according to the present invention, using the seal ring of Figure 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT:
A seal ring according to the present invention is shown in Figures 1 and 2.
Referring to Figures 1 and 2, the seal ring comprises a rubber ring body 1, projections, such as ribs 2, formed on the outer peripheral surface of the ring body, and projections, such as ribs 3, formed on the inner peripheral surface of the ring body. A locking groove 4 is formed into the ring body and between the projections 2 and 3. In the illustrated embodiment, a total of six locking grooves are formed along the circumference of the seal ring.
Since these locking grooves 4 are to be respectively engaged with latch projections 12 (see Figure 3) formed in a cavity of a female housing 11 for receiving a male housing 10, the locking grooves 4 are formed at positions respectively corresponding to the latch projections, as will be indicated hereinbelow.
The locking groove 4 has a groove 4A extending in a direction perpendicular to the direction of depth of the locking groove 4. The groove 4A corresponds to a projection 12A (see Figure 3) extending from the corresponding latch pro~ection 12 formed in the cavity of the female housing 11.
In the illustrated embodiment, the projections 2 and 3 are formed at substantially corresponding, opposite positions.
Figure 3 shows a sealed connector ~ncluding the seal ring described above.
.. . . ..
.
-3- Z0349~3 1 The connector comprises a male housing 10, a female housing 11 having a cavity for receiving the male housing 10, and the seal ring.
The grooves 4 on the seal ring are engaged with the S latch projections 12 extending from the bottom surface of the cavity of the female housing 11. As shown in Figure 3, the seal ring is interposed between an outer wall surface of the male housing and an inner wall surface of the female housing to seal the male and female housings when the male and female housings are joined with each other.
Referring still to Figure 3, reference numeral 13 denotes wires each having a distal end terminating at a corresponding receptacle contact 14. A ferrule 14A (crown-shaped cap) is mounted on the distal end of the receptacle contact. A pin contact 15 is received into the corresponding receptacle contact through the corresponding ferrule.
Each pin contact extends through the bottom portion of the cavity of the female housing 11. In the illustrated structure, the pin contact extending through the housing is inserted into and fixed on a printed circuit board 20 through an alignment plate 16.
Reference numeral 17 denotes a bushing having a plurality of holes for receiving the wires 13. The bushing 17 serves to seal the wires 13 and the male housing 10.
Reference numeral 18 denotes a packing rubber member and reference numeral 19, a unit case.
Since the seal ring according to the present~invention has the locking grooves which are respectively engaged with the latch pro~ections formed on the bottom of the cavity of the female housing, the seal ring is not inadvertently folded or the like when the male housing is fitted in the cavity of the female housing. Therefore, the sealing effect is not impaired.
, , ' ,: ' , , .
~, , ~, ~ ' ' ' -4_ 2034363 1 Since the seal ring is fixed in the cavity of the female housing, the seal ring tends not to be adversely affected externally. A special structure for protecting the seal ring (e.g., a cylindrical outer wall for protecting the seal ring in a known connector) is not required, thereby providing a compact structure.
Since each locking groove of the seal ring of the present device has a groove extending in a direction perpendicular to the direction of depth of the locking groove, the seal ring is not easily removed from the latch projections.
Having described the preferred embodiment of the present invention herein, it should be understood that variations may be made thereto without departing from the contemplated scope. Accordingly, the description of the preferréd embodiment is intended to be illustrative rather than limiting. The true scope of the invention is set forth ln the claims appended hereto.
~ '
The grooves 4 on the seal ring are engaged with the S latch projections 12 extending from the bottom surface of the cavity of the female housing 11. As shown in Figure 3, the seal ring is interposed between an outer wall surface of the male housing and an inner wall surface of the female housing to seal the male and female housings when the male and female housings are joined with each other.
Referring still to Figure 3, reference numeral 13 denotes wires each having a distal end terminating at a corresponding receptacle contact 14. A ferrule 14A (crown-shaped cap) is mounted on the distal end of the receptacle contact. A pin contact 15 is received into the corresponding receptacle contact through the corresponding ferrule.
Each pin contact extends through the bottom portion of the cavity of the female housing 11. In the illustrated structure, the pin contact extending through the housing is inserted into and fixed on a printed circuit board 20 through an alignment plate 16.
Reference numeral 17 denotes a bushing having a plurality of holes for receiving the wires 13. The bushing 17 serves to seal the wires 13 and the male housing 10.
Reference numeral 18 denotes a packing rubber member and reference numeral 19, a unit case.
Since the seal ring according to the present~invention has the locking grooves which are respectively engaged with the latch pro~ections formed on the bottom of the cavity of the female housing, the seal ring is not inadvertently folded or the like when the male housing is fitted in the cavity of the female housing. Therefore, the sealing effect is not impaired.
, , ' ,: ' , , .
~, , ~, ~ ' ' ' -4_ 2034363 1 Since the seal ring is fixed in the cavity of the female housing, the seal ring tends not to be adversely affected externally. A special structure for protecting the seal ring (e.g., a cylindrical outer wall for protecting the seal ring in a known connector) is not required, thereby providing a compact structure.
Since each locking groove of the seal ring of the present device has a groove extending in a direction perpendicular to the direction of depth of the locking groove, the seal ring is not easily removed from the latch projections.
Having described the preferred embodiment of the present invention herein, it should be understood that variations may be made thereto without departing from the contemplated scope. Accordingly, the description of the preferréd embodiment is intended to be illustrative rather than limiting. The true scope of the invention is set forth ln the claims appended hereto.
~ '
Claims (7)
1. A connector seal ring comprising an elastomeric ring body (1), at least one projection (2) formed on an outer peripheral surface of said ring body, at least one projection (3) formed on an inner peripheral surface of said ring body, and a locking groove (4) extending into said ring body and between said projections (2) and (3).
2. A connector seal ring according to claim 1, wherein said projections (2) and (3) extend in substantially opposite directions and wherein said locking groove (4) extends into said ring body (1) in a direction generally perpendicular to the direction of the projections (2) and (3).
3. A seal ring according to claim 2, wherein said locking groove (4) has a groove (4A) communicating therewith and formed in a direction generally perpendicular to the direction of depth of said locking groove (4).
4. A seal ring according to claim 3, wherein said projections (2) and (3) are formed at substantially corresponding opposite positions.
5. A sealed connector comprising a male housing (10), a female housing (11) having a cavity receiving sale male housing, and a seal ring according to claim 1, wherein said seal ring is disposed in said cavity and interposed between an outer wall surface of said male housing and an inner wall surface of said female housing when said male and female housings are joined with each other.
6. A sealed connector according to claim 5, wherein said locking groove (4) is formed to correspond to a latch projection (12) on said female housing (11) and projecting into said cavity such that said locking groove (4) engages with said latch projection (12).
7. A sealed connector according to claim 6, wherein said seal ring (1) is disposed on a surface of said female housing, said projection (2) being in interference fit with said female housing surface for holding said ring thereon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP613490U JPH0397871U (en) | 1990-01-29 | 1990-01-29 | |
| JP6134/1990 | 1990-01-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2034963A1 CA2034963A1 (en) | 1991-07-30 |
| CA2034963C true CA2034963C (en) | 1994-04-19 |
Family
ID=11630034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2034963 Expired - Lifetime CA2034963C (en) | 1990-01-29 | 1991-01-25 | Sealed electrical connector and seal ring therefor |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0440417B1 (en) |
| JP (1) | JPH0397871U (en) |
| AU (1) | AU630270B2 (en) |
| CA (1) | CA2034963C (en) |
| DE (1) | DE69108943D1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617140U (en) * | 1992-08-05 | 1994-03-04 | 住友電装株式会社 | connector |
| JPH11224720A (en) * | 1998-02-06 | 1999-08-17 | Sumitomo Wiring Syst Ltd | Connector |
| IT1303119B1 (en) * | 1998-10-09 | 2000-10-30 | Framatome Connectors Italia | ELECTRIC CONNECTOR. |
| CN103227380B (en) * | 2012-01-25 | 2017-04-05 | 英洛瓦(天津)物探装备有限责任公司 | For the seal feature that adapter is used |
| JP2016062672A (en) * | 2014-09-16 | 2016-04-25 | 住友電装株式会社 | connector |
| CN108963557A (en) * | 2017-05-19 | 2018-12-07 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| JP7153169B2 (en) * | 2017-12-22 | 2022-10-14 | サンデン株式会社 | electric compressor |
| TWI677273B (en) * | 2018-01-18 | 2019-11-11 | 飛宏科技股份有限公司 | Waterproof structure for preventing water from penetrating into electronic products and waterproof annular ring |
| IT201800002675A1 (en) * | 2018-02-14 | 2019-08-14 | Tyco Electronics Amp Italia Srl | Electrical connection device |
| US11735858B2 (en) * | 2020-07-14 | 2023-08-22 | J.S.T. Corporation | Elastomer seal spring |
| JP7473439B2 (en) * | 2020-09-30 | 2024-04-23 | 矢崎総業株式会社 | connector |
| JP7308897B2 (en) * | 2021-10-15 | 2023-07-14 | 三菱電機株式会社 | electronic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047100B2 (en) * | 1979-07-17 | 1985-10-19 | 新田ベルト株式会社 | Nonflammable lightweight composite material and its manufacturing method |
| JPS57104596A (en) * | 1980-12-23 | 1982-06-29 | Tominaga Oil Pump | Feeder for liquid |
| EP0132099B1 (en) * | 1983-07-15 | 1991-12-04 | Sumitomo Wiring Systems, Ltd. | Water-proof connector |
| GB2216736B (en) * | 1988-02-12 | 1992-09-02 | Yazaki Corp | Waterproof plug for electrical connector |
| JPH01146478U (en) * | 1988-03-31 | 1989-10-09 |
-
1990
- 1990-01-29 JP JP613490U patent/JPH0397871U/ja active Pending
-
1991
- 1991-01-25 CA CA 2034963 patent/CA2034963C/en not_active Expired - Lifetime
- 1991-01-29 AU AU70026/91A patent/AU630270B2/en not_active Ceased
- 1991-01-29 DE DE69108943T patent/DE69108943D1/en not_active Expired - Lifetime
- 1991-01-29 EP EP91300658A patent/EP0440417B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0440417B1 (en) | 1995-04-19 |
| AU7002691A (en) | 1991-08-01 |
| JPH0397871U (en) | 1991-10-09 |
| DE69108943D1 (en) | 1995-05-24 |
| CA2034963A1 (en) | 1991-07-30 |
| AU630270B2 (en) | 1992-10-22 |
| EP0440417A1 (en) | 1991-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKEC | Expiry (correction) |
Effective date: 20121202 |