CN109301607B - Anti-reverse-insertion connecting structure of electric connector - Google Patents
Anti-reverse-insertion connecting structure of electric connector Download PDFInfo
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- CN109301607B CN109301607B CN201811222747.6A CN201811222747A CN109301607B CN 109301607 B CN109301607 B CN 109301607B CN 201811222747 A CN201811222747 A CN 201811222747A CN 109301607 B CN109301607 B CN 109301607B
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- connector
- shell
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- notch
- housing
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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
- H01R13/64—Means for preventing incorrect coupling
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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
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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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
- H01R13/50—Bases; Cases formed as an integral body
-
- 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
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6278—Snap or like fastening comprising a pin snapping into a recess
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention belongs to the technical field of electric connectors, and discloses an anti-reverse-insertion connecting structure of an electric connector, which comprises a first connector and a second connector which can be inserted into each other, wherein the first connector comprises a circuit board and a first shell arranged outside the circuit board; the second connector comprises a second connecting terminal and a second shell arranged outside the second connecting terminal, the first shell is provided with a jack for the second connector to insert, the circuit board is provided with a butt joint end positioned in the jack, metal contact pieces are distributed on the surface of the butt joint end, when the first connector is inserted into the second connector, the second shell is inserted into the first shell, the metal contact pieces are contacted with the second connecting terminal, a guide piece is convexly arranged on the outer surface of one of the first shell and the second shell, a gap with an opening facing the guide piece is formed in the corresponding side wall of the other shell, and the gap is used for accommodating the guide piece. The invention can prevent the first connector and the second connector from being inserted reversely, thereby realizing the fool-proof function.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to an anti-reverse-plugging connecting structure of an electric connector.
Background
With the rapid advance of digital science and technology, related electronic products are continuously coming out, and the connection requirement between an electronic product device and peripheral equipment is more strict. The connection between the electronic product device and the peripheral device is usually realized by inserting two connectors into each other. However, when one connector is inserted into another connector, the insertion is often reversed due to the unclear front and back faces of the connector, which results in the situations of electrical connection failure, abnormality, and even damage to the connector and the circuit.
Therefore, there is a need for an anti-reverse connection structure of an electrical connector to solve the above problems.
Disclosure of Invention
The invention aims to provide an anti-reverse-insertion connecting structure of an electric connector, which avoids reverse insertion of the electric connector.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-reverse-insertion connecting structure of an electric connector comprises a first connector and a second connector which can be inserted into each other, wherein the first connector comprises a circuit board and a first shell arranged outside the circuit board; the second connector comprises a second connecting terminal and a second shell arranged outside the second connecting terminal, the first shell is provided with a jack into which the second connector is inserted, the circuit board is provided with a butt joint end positioned in the jack, metal contact pieces are distributed on the surface of the butt joint end, when the first connector is plugged with the second connector, the second shell is inserted into the jack, and the metal contact pieces are contacted with the second connecting terminal;
the outer surface of one of the first shell and the second shell is convexly provided with a guide sheet, the corresponding side wall of the other shell is provided with a notch with an opening facing the guide sheet, and the notch is used for accommodating the guide sheet.
Preferably, the notch is provided at an end edge of the first housing facing the second connector.
Preferably, the guiding piece is provided as a vertical piece body parallel to the plugging direction of the first connector or the second connector.
Preferably, the second connector is configured to be mounted on a mother board, and the guide piece is fixed in the mounting hole of the mother board.
Preferably, the guide piece is integrally formed with the second housing.
Preferably, the guide piece is press-formed on the bottom wall of the second housing, and the bottom wall has an opening left by forming the guide piece.
Preferably, the two guide pieces are spaced apart from each other in the left-right direction and are disposed on the bottom surface of the second housing.
Preferably, the first connector further comprises a waterproof gasket injection-molded on an outer surface of the first housing.
Preferably, the outer surface of the waterproof gasket is provided with a sealing ring, and the cross section of the sealing ring is gradually increased from outside to inside.
Preferably, the notch is located in front of the waterproof gasket.
The invention has the beneficial effects that: the surface of one of the first shell or the second shell is provided with a guide sheet, and the corresponding side wall of the other shell is provided with a notch facing the guide sheet and used for accommodating the guide sheet. When the guide piece is inserted in the forward direction, the guide piece is correspondingly inserted with the notch; when the insertion is performed reversely, the guide piece blocks the first shell or the second shell, so that the insertion cannot be performed. The invention can prevent the first connector and the second connector from being inserted reversely, thereby realizing the fool-proof function.
Drawings
FIG. 1 is a schematic view of a first connector and a second connector provided in the present invention when they are plugged together;
FIG. 2 is a schematic diagram of a second connector according to the present invention;
FIG. 3 is a schematic structural view of a second housing provided by the present invention;
FIG. 4 is a schematic view of a first connector according to the present invention;
fig. 5 is an exploded view of a first connector provided by the present invention.
In the figure:
1. a first connector; 10. inserting holes; 11. a circuit board; 111. a butt joint end; 112. a connecting end; 12. a first housing; 121. a notch; 13. an insulator; 130. an installation part; 133. a recessed portion; 14. a locking plate; 140. a movable plate; 141. a fixing sheet; 143. a hook is clamped; 15. a housing; 153. a stop ring; 16. a waterproof gasket; 161. a seal ring; 17. a cable;
2. a second connector; 21. a second connection terminal; 22. a second housing; 221. a guide piece; 222. opening a hole; 223. a clamping hole; 23. a mother circuit board.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The invention provides an anti-reverse-insertion connecting structure of an electric connector, which comprises a first connector 1 and a second connector 2 which can be inserted into each other, wherein the first connector 1 comprises a circuit board 11 and a first shell 12 arranged outside the circuit board 11; the second connector 2 includes a second connection terminal 21 and a second housing 22 disposed outside the second connection terminal 21, the first housing 12 and the second housing 22 are made of metal, the first housing 12 is provided with a plug hole 10 for the second connector 2 to be inserted into, the circuit board 11 has a butt-joint end 111 located at the front end and a connection end 112 located at the rear end, metal contact pieces are arranged on the surface of the butt-joint end 111, the connection end 112 is connected with the cable 17, when the first connector 1 and the second connector 2 are plugged, the second housing 22 is inserted into the plug hole 10, and the metal contact pieces are in contact with the second connection terminal 21, so that the first connector 1 and the second connector 2 are electrically connected.
In order to improve the accuracy of the plugging, since the first connector 1 is easily inserted reversely when connected to the second connector 2, in the present embodiment, a guiding piece 221 is protruded from an outer surface of one of the first housing 12 and the second housing 22, and a notch 121 opened toward the guiding piece 221 is opened on a corresponding side wall of the other, and the notch 121 is used for accommodating the guiding piece 221. Specifically, the guiding piece 221 may be disposed on the outer surface of the second housing 22, and the notch 121 is correspondingly disposed on the end edge of the first housing 12 facing the second connector 2 (as shown in fig. 2 and 3), in this case, when the first connector 1 is inserted into the second connector 2 in the forward direction, the guiding piece 221 is inserted into the notch 121; when the insertion is performed in the reverse direction, the guide piece 221 blocks the first housing 12, and the insertion is not performed. Therefore, the operator can accurately connect the first connector 1 and the second connector 2 by simply trying once or twice, and the situation of reverse insertion is avoided. Further, by providing the guide piece 221, the first connector 1 can be inserted in the correct direction, and the oblique insertion can be avoided.
In addition, the guiding piece 221 may also be disposed on the inner surface of the first housing 12, and at this time, the notch 121 is correspondingly disposed on the second housing 22 (not shown in the figure), when the first connector 1 is inserted into the second connector 2 in the opposite direction, the guiding piece 221 will block the second housing 22, so that the insertion is not possible. Therefore, the invention can effectively prevent the first connector 1 and the second connector 2 from being inserted reversely, and realize the fool-proof function.
The following description will proceed with the example in which the guide piece 221 is provided on the second casing 22.
The guide piece 221 is provided as a vertical piece body parallel to the plugging direction of the first connector 1 or the second connector 2. The second connector 2 is adapted to be mounted on the mother board 23, and the guide piece 221 is fixed in the mounting hole of the mother board 23.
The guide piece 221 is integrally formed with the second housing 22. The integrated forming mode facilitates the processing of the second shell 22, saves the processing cost and improves the processing efficiency. Specifically, the guide piece is press-formed on the bottom wall of the second housing 22, which has the opening 222 left by forming the guide piece 221.
The number and position of the guiding pieces 221 and the notches 121 may be adjusted according to different applications, for example, one guiding piece 221 may be disposed in the middle of the bottom surface of the second housing 22, and at this time, the two connectors are used for transmitting USB signals; the number of the guide pieces 221 may be two, and the two guide pieces 221 are disposed on the bottom surface of the second housing 22 at a left-right interval, in which case the two connectors are used for transmission of video signals.
In this embodiment, the opening end of the notch 121 is expanded to facilitate the alignment between the guiding piece 221 and the notch 121, so that the guiding piece 221 is not dislocated from the notch 121 at the initial moment of inserting into the notch 121, thereby ensuring accurate insertion.
In this embodiment, the first connector 1 further includes an insulator 13, the insulator 13 is disposed in the first housing 12 and is injection molded at the connecting end 112 of the circuit board 11, so that the insulator 13 can be easily processed and stably connected to the circuit board 11 by injection molding. By providing the insulator 13, the mating end 111 of the circuit board 11 can be suspended within the first housing 12.
Because the first housing 12 and the second housing 21 are connected in a sleeved manner, the first connector 1 and the second connector 2 are often easily loosened or even separated due to external force collision, which causes interruption of electrical connection, affects use, or even affects electrical safety.
In order to solve the above problem, in this embodiment, the first connector 1 further includes a locking plate 14, one end of the locking plate 14 is connected to the insulator 13, the other end of the locking plate 14 is suspended in the inserting hole 10 and is provided with a hook 143, the hook 143 can move up and down relative to the fixed end, and the second housing 21 is provided with a locking hole 223 engaged with the hook 143. When the first connector 1 is inserted into the second connector 2, the hook 143 can extend into the hook hole 223 to hook the second housing 21, so that the first connector 1 and the second connector 2 are not easily separated from each other, and the stability of electrical connection is ensured. At the same time, the locking tab 14 is located inside the first housing 12 of the first connector 1, aesthetically pleasing and does not increase the size of the exterior of the connector.
Specifically, the locking piece 14 includes a fixing piece 141 having a U shape and a movable piece 140 extending forward from the fixing piece 141, the fixing piece 141 is fixed to the insulator 13 in an insert molding manner, and the hook 143 is provided at a front end of the movable piece 140. The upper surface of the insulator 13 is provided with a recess 133, and the main body is suspended in the recess 133 and can move up and down in the recess 133.
In this embodiment, the first connector 1 further includes a metal shell 15 sleeved outside the first housing 12 and a waterproof gasket 16 sleeved on an outer surface of the metal shell 15, wherein the waterproof gasket 16 is made of silicone. To prevent the glue on the waterproof gasket 16 from flowing backwards, a stop ring 153 is injection molded on the outside of the housing 15. The notch 121 is located in front of the waterproof gasket 16. The outer surface of the waterproof gasket 16 is provided with a sealing ring 161 for sealing connection with peripheral components, which has a waterproof effect. The sealing ring 161 may be made of silica gel, rubber, or the like, and interference of 0.3mm is provided between the outer edge of the sealing ring 161 and peripheral components, so as to ensure that the waterproof requirement is satisfied. The number of the sealing rings 161 can be set according to the waterproof requirements of different grades, and 3 sealing rings 161 are provided in the embodiment. The sealing ring 161 and the waterproof gasket 16 are integrally formed, so that the processing and the manufacturing are convenient, and the silicone ring can not be deformed and turned over or even fall off due to friction force in the using process. The cross-section of the seal ring 161 is gradually increased from the outside to the inside, and may be shaped like a triangle.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An anti-reverse-insertion connecting structure of an electric connector comprises a first connector (1) and a second connector (2) which can be inserted into each other,
the first connector (1) comprises a circuit board (11) and a first shell (12) arranged outside the circuit board (11);
the second connector (2) comprises a second connecting terminal (21) and a second shell (22) arranged outside the second connecting terminal (21), the first shell (12) is provided with a plug hole (10) for the second connector (2) to be inserted into, the circuit board (11) is provided with a butt joint end (111) positioned in the plug hole (10), and metal contact sheets are distributed on the surface of the butt joint end (111),
when the first connector (1) is inserted into the second connector (2), the second housing (22) is inserted into the insertion hole (10), and the metal contact piece is in contact with the second connection terminal (21), which is characterized in that:
the bottom surface of the second shell (22) is provided with a guide sheet (221) which is a vertical sheet, the bottom wall of the first shell (12) is provided with a notch (121) with an opening facing the guide sheet (221), the notch (121) is arranged at the end edge of the first shell (12) facing the second connector (2), and the notch (121) is used for accommodating the guide sheet (221).
2. Anti-reverse-insertion connection structure of an electrical connector according to claim 1, wherein the open end of the notch (121) is flared.
3. The electrical connector anti-reverse-plugging connection structure according to claim 1, wherein the notch (121) is communicated with the plugging hole (10).
4. The anti-reverse-insertion connection structure of an electrical connector according to claim 1, wherein the second connector (2) is adapted to be mounted on a mother circuit board (23), and the guide piece (221) is fixed in a mounting hole of the mother circuit board (23).
5. The electrical connector reverse-insertion prevention connection structure according to claim 1, wherein the guide piece (221) is integrally formed with the second housing (22).
6. The electrical connector anti-reverse-insertion connecting structure according to claim 1, wherein the guide piece (221) is press-formed on a bottom wall of the second housing (22), the bottom wall having an opening (222) left by forming the guide piece (221).
7. The electrical connector reverse-insertion-prevention connecting structure according to claim 1, wherein the guide piece (221) and the notch (121) are respectively two spaced right and left.
8. The electrical connector reverse-insertion-prevention connecting structure according to any one of claims 1 to 7, wherein the first connector (1) further comprises a waterproof gasket (16) injection-molded on an outer surface of the first housing (12).
9. The anti-reverse-insertion connection structure of an electrical connector according to claim 8, wherein the outer surface of the waterproof gasket (16) is provided with a sealing ring (161), and the cross section of the sealing ring (161) is gradually increased from outside to inside.
10. Anti-unplugging connection structure of an electrical connector according to claim 9, characterized in that the notch (121) is located in front of the waterproof gasket (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222747.6A CN109301607B (en) | 2018-10-19 | 2018-10-19 | Anti-reverse-insertion connecting structure of electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222747.6A CN109301607B (en) | 2018-10-19 | 2018-10-19 | Anti-reverse-insertion connecting structure of electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109301607A CN109301607A (en) | 2019-02-01 |
| CN109301607B true CN109301607B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811222747.6A Active CN109301607B (en) | 2018-10-19 | 2018-10-19 | Anti-reverse-insertion connecting structure of electric connector |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072400A (en) | 2020-09-04 | 2020-12-11 | 东莞立讯技术有限公司 | Electrical connector |
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| CN203339416U (en) * | 2013-06-27 | 2013-12-11 | 昆山宏泽电子有限公司 | Edge connector with detachable fool-proof keys |
| CN104022399A (en) * | 2014-05-29 | 2014-09-03 | 立讯精密工业（昆山）有限公司 | Plug connector |
| CN104022396A (en) * | 2014-05-29 | 2014-09-03 | 立讯精密工业（昆山）有限公司 | Electric connector combination |
| CN203967383U (en) * | 2014-05-29 | 2014-11-26 | 立讯精密工业（昆山）有限公司 | Pin connector |
| CN203967380U (en) * | 2014-05-29 | 2014-11-26 | 立讯精密工业（昆山）有限公司 | Electric connector combination |
| CN204315837U (en) * | 2014-12-18 | 2015-05-06 | 崔更特商业公司 | The two-way positive anti-plug switching device of connector |
| CN107123882A (en) * | 2017-06-02 | 2017-09-01 | 凡甲电子(苏州)有限公司 | Wire and cable connector |
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| CN109301607A (en) | 2019-02-01 |
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