CN109217028B - Wire harness connector with special CPA structure and secondary locking function - Google Patents
Wire harness connector with special CPA structure and secondary locking function Download PDFInfo
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- CN109217028B CN109217028B CN201811137709.0A CN201811137709A CN109217028B CN 109217028 B CN109217028 B CN 109217028B CN 201811137709 A CN201811137709 A CN 201811137709A CN 109217028 B CN109217028 B CN 109217028B
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- cpa
- sheath
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- rib
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- 238000003825 pressing Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 102100030614 Carboxypeptidase A2 Human genes 0.000 description 17
- 108091006675 Monovalent cation:proton antiporter-2 Proteins 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a wire harness connector with a special CPA structure and a secondary locking function, which comprises a sheath and CPA, wherein the CPA and the sheath are combined into the secondary locking structure, back-off is arranged on two sides of the CPA, anti-reversing ribs matched with the back-off are arranged on the sheath, and after the CPA is assembled to the sheath, the back-off is meshed with the anti-reversing ribs to ensure that the CPA cannot reverse. The guide angle arranged at the front end of the anti-reversing rib meets the requirement that a guide structure is arranged between the reversing buckle of the CPA and the sheath, and the installation is convenient. And the anti-reversing rib on the sheath and the back-off structure on the CPA have the anti-reversing function, so that the CPA can be prevented from falling off. Two small convex ribs are added on the inner sides of the anti-reversing ribs on the two sides, so that the CPA is guaranteed not to reverse, and the lock catch pressing position on the sheath can not be pressed down after the CPA is pushed in place. The CPA structure is a newly developed structure, and has stronger mechanical capability. The anti-backup strength is higher. The two-stage meshing bayonet has very good improvement on the anti-falling and CPA holding force.
Description
Technical Field
The present invention relates to a harness connector, and more particularly, to a harness connector having a special CPA structure and having a secondary lock function.
Background
With the continuous development of new energy automobiles, a plurality of manufacturers in the automobile industry begin to produce products such as high-voltage connectors and wire harnesses applicable to the new energy automobiles. The high-voltage connector is provided with a secondary lock structure in order to ensure that the connector does not come loose due to vibration of the vehicle during running.
The secondary lock structure on the market is usually complex in structure or expensive in die and manufacturing cost. Some manufacturers even require two CPA members at the institution.
CPA, connector position assurance, refers to a connector positioning device, a secondary lock for connector positioning.
U.S. patent No. 20110212644A1 discloses a Connector Position Assurance (CPA) lock (10) for a connector (12) of a wiring harness of an engine having a connector body (14) and a lever latch (30) pivot relative to the connector body including a lock body (34). A foot (52) extends from the lock body (34) and engages the connector (12) to secure the position of the lock relative to the connector. The harness connector is complex in structure and relatively expensive to manufacture.
Chinese patent CN201710039385.6 discloses a novel CPA device and a connector assembly having the novel CPA device. The technical problem to be solved is that the CPA on the conventional electrical connector does not have a structure satisfying the high voltage interlock function. The novel lock comprises a main body part, wherein the main body part is in a latch shape and comprises an upper rectangular opening and a lower rectangular opening, guide ribs are arranged on two sides of the main body part, a pause lock hanging nose is arranged at the upper end of the inner side of the main body part, a limit boss is arranged in the middle of the inner side of the main body part, a boss I is arranged on the upper portion of the outer side of the main body part, and a transition bridging inclined plane is arranged between the boss I and the pause lock hanging nose. After the technical scheme is adopted, the high-voltage power supply circuit and the low-voltage signal circuit are switched on and off in a time-sharing way, so that an operation delay function is realized, and the injury of high voltage to operators is avoided.
Chinese patent CN201720724327.2 discloses an automobile connector, the CPA of the automobile connector is provided with a CPA front bolt, the CPA front bolt is an elastic structure, when the CPA is not withdrawn, the CPA front bolt is pushed up by a fifth plug buckling position on the plug main body to deform, so that the tail end of the CPA front bolt abuts against the upper end of the socket unlocking lever to limit the upper end of the socket unlocking lever to deform rightwards, and the lower end of the socket unlocking lever is connected with the socket main body to be fixed, so that the socket unlocking lever loses leverage and cannot be randomly unlocked, and then the unlocking button of the connector cannot be freely pressed before the CPA is withdrawn, so that the second-stage unlocking mechanism of the connector cannot be accidentally unlocked when the connector collides or is extruded. The above-mentioned connector structure is complicated to set up.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a harness connector having a special CPA structure and having a secondary locking function.
The aim of the invention can be achieved by the following technical scheme:
the harness connector with the special CPA structure and the secondary locking function comprises a sheath and CPA, wherein the CPA and the sheath are combined into the secondary locking structure, back-off is arranged on two sides of the CPA, anti-reversing ribs matched with the back-off are arranged on the sheath, and after the CPA is assembled to the sheath, the back-off is meshed with the anti-reversing ribs to ensure that the CPA cannot reverse.
Further, the sheath is provided with a lock catch pressing position, and the CPA is inserted from the rear end of the lock catch pressing position of the sheath.
Further, the front end of the anti-reversing rib is provided with a guide angle, and the back-off can elastically deform upwards along the guide angle of the front end of the anti-reversing rib in the process of assembling the CPA to the sheath.
The guide angle arranged at the front end of the anti-reversing rib meets the requirement that a guide structure is arranged between the reversing buckle of the CPA and the sheath, and the installation is convenient. And the anti-reversing rib on the sheath and the back-off structure on the CPA have the anti-reversing function, so that the CPA can be prevented from falling off.
Further, the anti-reverse rib has a slope, the back-off also has a slope, and the slope on the anti-reverse rib and the slope of the back-off ensure that the CPA can be smoothly assembled into the sheath.
Further, the sheath is in plug-in fit with the plug.
Further, after the sheath is plugged into the plug, the CPA is assembled to the sheath.
Further, two small convex ribs are arranged on the inner side of the anti-reversing rib. The inner sides of the anti-reverse ribs refer to opposite sides of two anti-reverse ribs. Two small convex ribs are added on the inner sides of the anti-reversing ribs on the two sides, so that the CPA is guaranteed not to reverse, and the lock catch pressing position on the sheath can not be pressed down after the CPA is pushed in place.
Further, the sheath is a plastic sheath.
Further, the CPA is PA66 material, and the PA66 material has good toughness and mechanical properties. The CPA does not fracture and yield elastically during assembly.
When the CPA device is used, after the sheath is matched with the plug, the CPA is pushed to the bottom, and the CPA is pushed forwards until the CPA is pushed to be motionless in the assembly, at the moment, the CPA is blocked by the structure on the sheath to move forwards, and the anti-reversing rib on the sheath is meshed with the reversing buckle on the CPA, so that the CPA is prevented from reversing. After the locking device is in the working position, the anti-reversing rib on the sheath is arranged right below the CPA to ensure that the lock catch pressing positions of the CPA and the sheath cannot be pressed down, so that the possibility of loose disconnection between the sheath and the plug is avoided, and the secondary locking is formally effective.
The CPA structure is a newly developed structure, and has stronger mechanical capability. The anti-backup strength is higher. The two-stage meshing bayonet has very good improvement on the anti-falling and CPA holding force.
Compared with the prior art, the invention has the following advantages:
1. the guide angle arranged at the front end of the anti-reversing rib meets the requirement that a guide structure is arranged between the reversing buckle of the CPA and the sheath, and the installation is convenient. And the anti-reversing rib on the sheath and the back-off structure on the CPA have the anti-reversing function, so that the CPA can be prevented from falling off.
2. The engagement position of the buckle is hidden inside the product and is not exposed. The damage prevention is higher. The structure, the product strength and the stability are higher.
3. Two small convex ribs are arranged on the inner side of the anti-reversing rib. The inner sides of the anti-reverse ribs refer to opposite sides of two anti-reverse ribs. Two small convex ribs are added on the inner sides of the anti-reversing ribs on the two sides, so that the CPA is guaranteed not to reverse, and the lock catch pressing position on the sheath can not be pressed down after the CPA is pushed in place.
4. CPA simple structure, more material saving, manufacturing cost is lower.
Drawings
FIG. 1 is a schematic view of the structure of a jacket before assembly with CPA;
FIG. 2 is a schematic top view of the jacket;
FIG. 3 is a schematic view of the cross-sectional structure of the plane A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of the jacket assembled with the CPA;
fig. 5 is a schematic diagram of the assembled structure of the plug, the sheath, and the CPA.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
Referring to fig. 1-5, the harness connector with a special CPA structure and a secondary locking function comprises a sheath 1 and a CPA2, wherein the CPA2 and the sheath 1 are combined into the secondary locking structure, the two sides of the CPA2 are provided with a back-off 21, the sheath 1 is provided with an anti-back-off rib 11 matched with the back-off 21, and after the CPA2 is assembled to the sheath 1, the back-off 21 is meshed with the anti-back-off rib 11 to ensure that the CPA cannot back-off.
In this embodiment, the sheath 1 has a latch pressing position, and the CPA2 is inserted from the rear end of the latch pressing position of the sheath 1.
In this embodiment, the front end of the anti-reverse rib 11 is provided with a guiding angle, and the back-off 21 elastically deforms upward along the guiding angle of the front end of the anti-reverse rib 11 during the process of assembling the CPA2 to the sheath 1. The guide angle arranged at the front end of the anti-reversing rib 11 meets the requirement that a guide structure is arranged between the reversing buckle of the CPA and the sheath, and the installation is convenient. And the anti-reversing function is realized through the anti-reversing rib 11 on the sheath 1 and the reversing button 21 on the CPA2, so that the CPA can be prevented from falling off.
In this embodiment, the anti-back-up rib 11 has a slope, the back-off 21 also has a slope, and the slope on the anti-back-up rib 11 and the slope of the back-off 21 ensure that the CPA2 can be smoothly assembled into the sheath 1.
In this embodiment, the sheath 1 is in plug-in fit with the plug 3. After the sheath 1 is plugged with the plug 3, the CPA2 is assembled to the sheath 1.
In this embodiment, two small ribs are provided on the inner side of the anti-reverse rib 11. The inner sides of the anti-reverse ribs 11 refer to opposite sides of the two anti-reverse ribs 11. Two small convex ribs are added on the inner sides of the anti-reversing ribs 11 on the two sides, so that the CPA can not reverse, and the lock catch pressing position on the sheath can not be pressed down after the CPA is pushed in place.
In this embodiment, the sheath 1 is a plastic sheath. CPA2 is PA66 material, and the PA66 material has good toughness and mechanical property. The CPA does not fracture and yield elastically during assembly.
When the CPA protection sleeve is used, after the sheath 1 is matched with the plug 3, the CPA2 is pushed to the bottom, and the CPA2 is pushed forwards until the CPA2 is not pushed in the assembly process, at the moment, the CPA2 can be blocked to move forwards by the structure on the sheath 1, and the anti-reversing rib 11 on the sheath 1 is meshed with the reversing buckle 21 on the CPA2, so that the CPA can not be reversed. Namely, after the working position is reached, because the anti-reversing rib 11 on the sheath 1 is right below the CPA2, the lock catch pressing position of the CPA2 and the sheath 1 cannot be pressed down, so that the possibility that the sheath 1 and the plug 3 cannot be loosened and disconnected is avoided, and the secondary locking is formally effective.
In this embodiment, the CPA structure is a newly developed structure, and has a stronger mechanical capability. The anti-backup strength is higher. The two-stage meshing bayonet has very good improvement on the anti-falling and CPA holding force.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (6)
1. The harness connector with special CPA structure and secondary locking function comprises a sheath (1) and CPA (2), wherein the CPA (2) and the sheath (1) are combined into a secondary locking structure,
The CPA is characterized in that back-off buckles (21) are arranged on two sides of the CPA (2), anti-reversing ribs (11) matched with the back-off buckles (21) are arranged on the sheath (1), and after the CPA (2) is assembled to the sheath (1), the back-off buckles (21) are meshed with the anti-reversing ribs (11) to ensure that the CPA cannot reverse;
The front end of the anti-reversing rib (11) is provided with a guide angle, and the back-off (21) can elastically deform upwards along the guide angle of the front end of the anti-reversing rib (11) in the process of assembling the CPA (2) to the sheath (1);
The anti-reversing rib (11) is provided with a slope, the back-off (21) is also provided with a slope, and the slope on the anti-reversing rib (11) and the slope of the back-off (21) ensure that the CPA (2) is smoothly assembled into the sheath (1); the anti-reversing rib on the sheath and the back-off structure on the CPA have the anti-reversing function, so that the CPA is prevented from falling off;
The inner side of the anti-reversing rib (11) is provided with two small convex ribs, the inner side of the anti-reversing rib refers to the opposite sides of the two anti-reversing ribs, the two small convex ribs are added to the inner sides of the anti-reversing ribs on the two sides, so that CPA is ensured not to reverse, and a lock catch pressing position on the sheath is not pressed down after CPA is pushed in place.
2. Harness connector with special CPA structure and with secondary lock function according to claim 1, characterized in that the sheath (1) has a latch pressing position, and the CPA (2) is inserted from the rear end of the latch pressing position of the sheath (1).
3. Harness connector with special CPA structure and secondary lock function according to claim 1, characterized in that the sheath (1) is plug-fitted with plug (3).
4. A harness connector with a special CPA structure and with a secondary lock function according to claim 3, characterized in that the CPA (2) is reassembled to the sheath (1) after the sheath (1) is plugged with the plug (3).
5. Harness connector with special CPA structure and secondary lock function according to claim 1, characterized in that the sheath (1) is a plastic sheath.
6. Harness connector with special CPA structure and secondary lock function according to claim 1, characterized in that the CPA (2) is PA66 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137709.0A CN109217028B (en) | 2018-09-28 | 2018-09-28 | Wire harness connector with special CPA structure and secondary locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137709.0A CN109217028B (en) | 2018-09-28 | 2018-09-28 | Wire harness connector with special CPA structure and secondary locking function |
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| Publication Number | Publication Date |
|---|---|
| CN109217028A CN109217028A (en) | 2019-01-15 |
| CN109217028B true CN109217028B (en) | 2024-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811137709.0A Active CN109217028B (en) | 2018-09-28 | 2018-09-28 | Wire harness connector with special CPA structure and secondary locking function |
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| Country | Link |
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| CN (1) | CN109217028B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718793B (en) * | 2019-10-25 | 2020-11-27 | 浙江新宝汽车电器有限公司 | Prevent virtual connector structure of inserting |
| CN113644498A (en) * | 2021-07-22 | 2021-11-12 | 中航光电科技股份有限公司 | Signal interlocking connector |
| CN219040921U (en) * | 2022-11-07 | 2023-05-16 | 长春捷翼汽车科技股份有限公司 | Lock catch retaining device and connector assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565274A (en) * | 2017-08-07 | 2018-01-09 | 南京康尼新能源汽车零部件有限公司 | A kind of secondary buckle structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840317B (en) * | 2014-03-11 | 2017-01-11 | 四川永贵科技有限公司 | Double-lever interlocking connector |
| US9929509B1 (en) * | 2017-06-12 | 2018-03-27 | Delphi Technologies, Inc. | Connector system with low profile connector position assurance device |
| CN206962131U (en) * | 2017-06-20 | 2018-02-02 | 深圳巴斯巴科技发展有限公司 | A kind of automotive connector |
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2018
- 2018-09-28 CN CN201811137709.0A patent/CN109217028B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565274A (en) * | 2017-08-07 | 2018-01-09 | 南京康尼新能源汽车零部件有限公司 | A kind of secondary buckle structure |
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| CN109217028A (en) | 2019-01-15 |
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