CN109244751B - Waterproof dustproof structure of inverse assembly active cable connector - Google Patents
Waterproof dustproof structure of inverse assembly active cable connector Download PDFInfo
- Publication number
- CN109244751B CN109244751B CN201811315704.2A CN201811315704A CN109244751B CN 109244751 B CN109244751 B CN 109244751B CN 201811315704 A CN201811315704 A CN 201811315704A CN 109244751 B CN109244751 B CN 109244751B
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- Prior art keywords
- sealing sleeve
- outer shell
- ring
- cable connector
- diameter section
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- 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
-
- 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
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
- H01R13/5205—Sealing means between cable and housing, e.g. grommet
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a waterproof and dustproof structure of a reverse-assembly active cable connector, which comprises a limiting ring, an outer shell, a sealing sleeve, an insulating sleeve and a cable core; the limiting boss, the semicircular concave ring and the leading-out end are important structural parts in the outer shell; the semicircular flange is an important structural part of the sealing sleeve; the outer side of the sealing sleeve is in a step shape, and the step-shaped step surface is matched with the annular surface of the inner surface of the bottommost part of the outer shell, so that the limit of the reverse assembly of the cable connector is realized; the outer side of the large-diameter section is designed into a sawtooth ring shape; because the length of the large diameter section is greater than the distance from the upper surface of the limit boss to the annular surface of the bottommost inner surface of the outer shell, the stepped large diameter section of the sealing sleeve is forced to be compressed by the tight timing limit ring, three pairs of close contact matching surfaces are formed, and active waterproof and dustproof of the cable connector are realized. The connector device is simple in structure, convenient to assemble and operate reversely, capable of improving the active waterproof and dustproof performances of the cable connector and capable of expanding the application range of the connector device with the structure.
Description
Technical Field
The invention relates to the technical field of cable connector devices, in particular to a waterproof and dustproof structure of a reverse assembly active cable connector.
Background
The cable connector is a device for connecting two active devices, is used for transmitting current and the like, and is widely applied to industries such as new energy automobiles, industrial robots, industrial automatic assembly and the like. When the cable connector is used normally, high reliability is required, such as high performance of anti-interference, anti-shock, waterproof, dustproof and the like. The cable connector is commonly used at present in a structure that a cable terminal, an insulating sleeve and a cable core are sequentially assembled from outside to inside from the leading-out end of an outer shell, and then the cable terminal is sealed by utilizing a taper sleeve, a screw nut and the like, so that the performance requirements of water resistance, dust resistance and the like are met. However, the thread looseness of the structure can cause the performance such as water resistance, dust resistance and the like to be unable to meet the requirements in the use process, and the structure cannot be used normally.
Disclosure of Invention
In order to overcome the defects that in the existing cable connector, the cable terminal, the insulating sleeve and the cable core are assembled from outside to inside from the leading-out end of the outer shell, so that threads are loosened in the use process, the performances such as water resistance and dust resistance cannot meet the requirements, normal use cannot be realized, and the like, the invention provides a waterproof and dust-proof structure of a reverse-assembly active cable connector.
The technical solution adopted by the invention for specifically solving the technical problems is as follows: the utility model provides a waterproof dustproof structure of contrary assembly initiative formula cable connector, includes the spacing ring, the shell body, seal cover, insulating cover and cable core. Wherein the limit boss, the semicircular concave ring and the leading-out end are important structures in the outer shell; the semicircular flange is an important structural part of the sealing sleeve. The limiting ring is an aluminum product and is an annular part with a U-shaped groove in cross section; the minimum inner diameter of the limiting ring is in clearance fit with the outer edge of the insulating sleeve, and the maximum outer diameter of the limiting ring is 5 mm larger than the minimum inner diameter of the limiting boss; the U-shaped groove of the limiting ring is used for floating installation of the shielding external wire. The outer shell is an aluminum product and is used for packaging shell parts with structures such as terminals, anti-interference, shock resistance, water resistance, dust resistance and the like; the limiting boss in the outer shell is an annular boss, and the limiting boss is used for limiting the end face position of the limiting ring, so that the performance requirements of fixed terminal position, reliable shielding and the like are met; the lowermost bottom inner surface of the outer housing is an annular surface designed to contain a semi-circular concave ring. The sealing sleeve is a rubber product, an inner hole of the sealing sleeve is in interference fit with an outer circle of the insulating sleeve, the outer side of the sealing sleeve is in a ladder shape, a ladder-shaped small-diameter section outer circle of the sealing sleeve is in clearance fit with an inner hole of a leading-out end of the outer shell, the outer side of a ladder-shaped large-diameter section outer circle of the sealing sleeve is in interference fit with a section of inner hole of the outer shell, a sawtooth ring shape is designed on the outer side of the ladder-shaped large-diameter section outer circle of the sealing sleeve, a semicircular flange is designed at the lower bottom of the ladder-shaped large-diameter section of the sealing sleeve, and the semicircular flange of the sealing sleeve is an important structural part of the sealing sleeve and is matched with a semicircular concave ring of the outer shell; the length of the stepped large-diameter section of the sealing sleeve is larger than the distance from the upper surface of the limit boss in the outer shell to the annular surface of the inner surface of the bottommost part of the outer shell, the stepped step surface of the sealing sleeve is matched with the annular surface of the inner surface of the bottommost part of the outer shell, the limit of the reverse assembly of the cable connector is realized, and the reverse assembly process is that the outgoing line of the terminal assembly passes through the outer shell from the inner part of the outer shell to the outgoing end of the outer shell; the method comprises the steps that after reverse assembly, tight timing is carried out, a limit ring forces a stepped large-diameter section of a sealing sleeve to be compressed, three pairs of close contact matching surfaces are formed after the stepped large-diameter section of the sealing sleeve is compressed, a first pair of close contact matching surfaces are a step surface of the sealing sleeve containing a semicircular flange and an annular surface of the inner surface of the bottommost part of an outer shell containing a semicircular concave ring, and a contact matching effect is improved after the semicircular flange and the semicircular concave ring are compressed; the second pair of close contact matching surfaces are the outer side of the stepped large-diameter section excircle of the sealing sleeve and one section of inner hole surface of the outer shell, wherein the sawtooth ring is compressed to increase the contact matching effect; the third pair of close contact matching surfaces are the inner hole surface of the sealing sleeve and the outer circle surface of the insulating sleeve, wherein the inner hole of the compressed sealing sleeve is in interference fit with the outer circle surface of the insulating sleeve to increase the close contact matching effect; the three pairs of close contact matching surfaces realize active waterproof and dustproof functions of the cable connector. The cable core is contained in the insulating sleeve, and the material and the mutual matching relation of the insulating sleeve and the cable core meet the standard requirement.
The waterproof and dustproof structure of the reverse-assembly active cable connector has the beneficial effects that the waterproof and dustproof structure of the reverse-assembly active cable connector solves the problems that the waterproof and dustproof performances cannot meet the requirements and cannot be used normally due to loosening of threads in the use process due to the fact that the cable terminal, the insulation sleeve and the cable core are sequentially assembled from outside to inside from the leading-out end of the outer shell. The connector device has the advantages of simple structure, convenient reverse assembly operation, and greatly improved active waterproof and dustproof performances of the cable connector by utilizing the compressible characteristic of the rubber product, and the application range of the connector device with the structure is enlarged.
Drawings
FIG. 1 is a schematic view of a partial structure of an axial section of a waterproof and dustproof structure of a reverse-assembled active cable connector according to the present invention;
fig. 2 is a schematic bottom partial structure view of a waterproof and dustproof structure of a reverse-assembled active cable connector according to the present invention.
In the figure, the cable core is formed by 11 parts of limiting rings, 12 parts of outer shells, 121 parts of limiting bosses, 122 parts of semicircular concave rings, 123 parts of leading-out ends, 13 parts of sealing sleeves, 131 parts of semicircular flanges, 14 parts of insulating sleeves and 15 parts of cable cores.
Detailed Description
The patent of the invention is further described below with reference to the drawings and examples.
Referring to the drawings, a waterproof and dustproof structure of a reverse-fitting active cable connector comprises: the cable core comprises a limiting ring 11, an outer shell 12, a limiting boss 121, a semicircular concave ring 122, a leading-out end 123, a sealing sleeve 13, a semicircular flange 131, an insulating sleeve 14 and a cable core 15. The limiting ring 11 is an aluminum product, the limiting ring 11 is an annular part with a U-shaped groove in cross section, the minimum inner diameter of the limiting ring 11 is in clearance fit with the outer edge of the insulating sleeve 14, the maximum outer diameter of the limiting ring 11 is 5 mm larger than the minimum inner diameter of the limiting boss 121, and the U-shaped groove of the limiting ring 11 is used for floating installation of shielding outer wires. The outer shell 12 is an aluminum product, and the outer shell 12 is a shell part for packaging a terminal, and has the structures of anti-interference, anti-shock, waterproof, dustproof and the like; the limiting boss 121, the semicircular concave ring 122 and the leading-out end 123 are important structural parts inside the outer shell 12; the limiting boss 121 in the outer shell 12 is an annular boss, and the limiting boss 121 is used for limiting the end surface position of the limiting ring 11, so that the terminal position is fixed, and the shielding is reliable; the lowermost bottom inner surface of the outer housing 12 is an annular surface designed to contain a semi-circular concave ring 122. The sealing sleeve 13 is a rubber product, an inner hole of the sealing sleeve 13 is in interference fit with an outer circle of the insulating sleeve 14, the outer side of the sealing sleeve 13 is in a step shape, the outer circle of a step-shaped small-diameter section of the sealing sleeve 13 is in clearance fit with the inner hole of the leading-out end 123 of the outer shell 12, the outer side of a step-shaped large-diameter section of the sealing sleeve 13 is in interference fit with a section of the inner hole of the outer shell 12, a sawtooth ring shape is designed on the outer side of the outer circle of the step-shaped large-diameter section of the sealing sleeve 13, a semicircular flange 131 is designed at the lower bottom of the step-shaped large-diameter section of the sealing sleeve 13, and the semicircular flange 131 of the sealing sleeve 13 is matched with the semicircular concave ring 122 of the outer shell 12; the length of the stepped large-diameter section of the sealing sleeve 13 is longer than the distance from the upper surface of the limit boss 121 in the outer shell 12 to the annular surface of the inner surface of the bottommost part of the outer shell 12, the stepped step surface of the sealing sleeve 13 is matched with the annular surface of the inner surface of the bottommost part of the outer shell 12, the limit of the reverse assembly of the cable connector is realized, and the reverse assembly process is that the outgoing line of the terminal assembly passes through the outer shell 12 to the outgoing end 123 of the outer shell 12; when the reverse assembly is performed, because the length of the stepped large-diameter section of the sealing sleeve 13 is longer than the distance from the upper surface of the limit boss 121 inside the outer shell 12 to the annular surface of the bottommost inner surface of the outer shell 12, the limit ring 11 forces the stepped large-diameter section of the sealing sleeve 13 to be compressed, three pairs of close contact matching surfaces are formed after the stepped large-diameter section of the sealing sleeve 13 is compressed, and the first pair of close contact matching surfaces are the stepped surface of the sealing sleeve 13 containing the semicircular flange 131 and the annular surface of the bottommost inner surface of the outer shell 12 containing the semicircular concave ring 122, wherein the contact matching effect is increased after the semicircular flange 131 and the semicircular concave ring 122 are compressed; the second pair of clinging contact matching surfaces are the outer side of the stepped large-diameter section excircle of the sealing sleeve 13 and a section of inner hole surface of the outer shell 12, wherein the sawtooth ring is compressed to increase the contact matching effect; the third pair of close contact matching surfaces are the inner hole surface of the sealing sleeve 13 and the outer circle surface of the insulating sleeve 14, wherein the interference fit between the inner hole of the compressed sealing sleeve 13 and the outer circle surface of the insulating sleeve 14 increases the close contact matching effect; the three pairs of close contact matching surfaces realize active waterproof and dustproof functions of the cable connector. The cable core 15 is composed of copper wires with different diameters required by design, the cable core 15 is contained in the insulating sleeve 14, and the materials and the mutual matching relation of the insulating sleeve 14 and the cable core 15 meet the standard requirements.
When the cable connector is assembled, the sealing sleeve 13 is sleeved on the terminal, the limiting ring 11, the insulating sleeve 14, the cable core 15 and other assemblies; taking the outer shell 12, and enabling the combined body to penetrate out of the inner cavity of the outer shell 12, namely reversely assembling; after all the assemblies are reversely assembled, the assemblies are packaged and fixed by using the clamping cover, so that the limiting ring 11 is tightly pressed on the end face of the limiting boss 121 in the outer shell 12, the stepped large-diameter section of the sealing sleeve 13 is forced to be compressed, and three pairs of close contact matching surfaces are formed after the stepped large-diameter section of the sealing sleeve 13 is compressed, so that active waterproof and dustproof of the cable connector are realized.
Claims (3)
1. The utility model provides a contrary assembly initiative formula cable connector waterproof dustproof construction, includes spacing ring (11), shell body (12), seal cover (13), insulating cover (14) and cable core (15); the limiting boss (121), the semicircular concave ring (122) and the leading-out end (123) are important structural parts inside the outer shell (12); the semicircular flange (131) is an important structural part of the sealing sleeve (13), and is characterized in that: the limiting ring (11) is an annular part with a U-shaped groove in cross section, and the U-shaped groove of the limiting ring (11) is provided with a shielding external wire in a floating mode; the outer shell (12) is a shell part, a limit boss (121) in the outer shell (12) is an annular boss, and the inner surface of the bottommost part of the outer shell (12) is an annular surface designed to contain a semicircular concave ring (122); the outer side of the sealing sleeve (13) is in a ladder shape, a sawtooth ring shape is designed on the outer side of the outer circle of the ladder-shaped large-diameter section of the sealing sleeve (13), a semicircular flange (131) is designed at the lower bottom of the ladder-shaped large-diameter section of the sealing sleeve (13), and the semicircular flange (131) of the sealing sleeve (13) is matched with the semicircular concave ring (122) of the outer shell (12); the length of the stepped large-diameter section of the sealing sleeve (13) is larger than the distance from the upper surface of a limit boss (121) in the outer shell (12) to the annular surface of the inner surface of the bottommost part of the outer shell (12), the stepped step surface of the sealing sleeve (13) is matched with the annular surface of the inner surface of the bottommost part of the outer shell (12), the limit of the reverse assembly of the cable connector is realized, and the reverse assembly process is that a lead-out wire of the terminal assembly passes through the inner part of the outer shell (12) to a lead-out end (123) of the outer shell (12); when the reverse assembly is performed, the limit ring (11) forces the stepped large-diameter section of the sealing sleeve (13) to be compressed, three pairs of close contact matching surfaces are formed after the stepped large-diameter section of the sealing sleeve (13) is compressed, and the first pair of close contact matching surfaces are the step surface of the sealing sleeve (13) containing a semicircular flange (131) and the annular surface of the inner surface of the bottommost bottom of the outer shell (12) containing a semicircular concave ring (122); the second pair of close contact matching surfaces are the outer side of the stepped large-diameter section excircle of the sealing sleeve (13) and one section of inner hole surface of the outer shell (12); the third pair of close contact matching surfaces are the inner hole surface of the sealing sleeve (13) and the outer circle surface of the insulating sleeve (14); three pairs of close contact matching surfaces realize active waterproof and dustproof functions of the cable connector;
the limiting ring (11) is an aluminum product, the minimum inner diameter of the limiting ring (11) is in clearance fit with the outer edge of the insulating sleeve (14), and the maximum outer diameter of the limiting ring (11) is 5 mm larger than the minimum inner diameter of the limiting boss (121);
the outer shell (12) is made of aluminum, and the limiting boss (121) is used for limiting the end face position of the limiting ring (11).
2. The waterproof and dustproof structure of the reverse-assembly active cable connector of claim 1, wherein: the sealing sleeve (13) is a rubber product, the inner hole of the sealing sleeve (13) is in interference fit with the outer circle of the insulating sleeve (14), the stepped small-diameter section outer circle of the sealing sleeve (13) is in clearance fit with the inner hole of the leading-out end (123) of the outer shell (12), and the outer side of the stepped large-diameter section outer circle of the sealing sleeve (13) is in interference fit with the section of inner hole of the outer shell (12).
3. The reverse-fitting active cable connector waterproof and dustproof structure of claim 1, wherein: the cable core (15) is contained inside the insulating sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315704.2A CN109244751B (en) | 2018-11-07 | 2018-11-07 | Waterproof dustproof structure of inverse assembly active cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315704.2A CN109244751B (en) | 2018-11-07 | 2018-11-07 | Waterproof dustproof structure of inverse assembly active cable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244751A CN109244751A (en) | 2019-01-18 |
| CN109244751B true CN109244751B (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315704.2A Active CN109244751B (en) | 2018-11-07 | 2018-11-07 | Waterproof dustproof structure of inverse assembly active cable connector |
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| Country | Link |
|---|---|
| CN (1) | CN109244751B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113049Y (en) * | 2007-06-12 | 2008-09-10 | 镇江通达电子有限公司 | Waterproof coaxial connector |
| CN206564451U (en) * | 2017-02-20 | 2017-10-17 | 梁祚标 | A kind of novel cable water joint |
| CN207939179U (en) * | 2018-03-13 | 2018-10-02 | 苏州正北连接技术有限公司 | A kind of waterproof shield connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5330955B2 (en) * | 2009-10-14 | 2013-10-30 | 株式会社オーディオテクニカ | Condenser microphone connector |
-
2018
- 2018-11-07 CN CN201811315704.2A patent/CN109244751B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113049Y (en) * | 2007-06-12 | 2008-09-10 | 镇江通达电子有限公司 | Waterproof coaxial connector |
| CN206564451U (en) * | 2017-02-20 | 2017-10-17 | 梁祚标 | A kind of novel cable water joint |
| CN207939179U (en) * | 2018-03-13 | 2018-10-02 | 苏州正北连接技术有限公司 | A kind of waterproof shield connector |
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| Publication number | Publication date |
|---|---|
| CN109244751A (en) | 2019-01-18 |
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