WO2024094164A1 - Connecteur de structure de fixation de tpa - Google Patents

Connecteur de structure de fixation de tpa Download PDF

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Publication number
WO2024094164A1
WO2024094164A1 PCT/CN2023/129557 CN2023129557W WO2024094164A1 WO 2024094164 A1 WO2024094164 A1 WO 2024094164A1 CN 2023129557 W CN2023129557 W CN 2023129557W WO 2024094164 A1 WO2024094164 A1 WO 2024094164A1
Authority
WO
WIPO (PCT)
Prior art keywords
tpa
assembly
groove
sheath
fixed structure
Prior art date
Application number
PCT/CN2023/129557
Other languages
English (en)
Chinese (zh)
Inventor
王超
Original Assignee
长春捷翼汽车科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 长春捷翼汽车科技股份有限公司 filed Critical 长春捷翼汽车科技股份有限公司
Publication of WO2024094164A1 publication Critical patent/WO2024094164A1/fr

Links

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
    • H01R13/02—Contact members
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances

Definitions

  • the present specification relates to the technical field of connectors, and more specifically, to a TPA fixed structure connector.
  • TPA is one of the core components of the connector. Its full name in English is Terminal Position Assurance, which means terminal position assurance in Chinese. It plays the role of locking the terminal and enhancing the retention force of the terminal in the sheath to prevent the terminal from coming out under the action of external pulling and sealing force, causing the line to be powered off.
  • Terminal Position Assurance means terminal position assurance in Chinese. It plays the role of locking the terminal and enhancing the retention force of the terminal in the sheath to prevent the terminal from coming out under the action of external pulling and sealing force, causing the line to be powered off.
  • general automotive connectors TPA are made by plastic mold molding. Because the plastic material is soft and has poor strength, thicker wall thickness is generally required to ensure the fixing strength requirements, resulting in a larger connector body, which cannot meet the trend of product miniaturization.
  • the existing plastic TPA is mainly provided with anti-retraction protrusions (grooves) on the outer side of its side wall, and correspondingly, anti-retraction grooves (protrusions) are provided on the inner wall of the sleeve that is clamped with it, so as to realize the prevention of TPA from retreating and accidental loosening.
  • the sleeve is the main structure of the connector, and its structure is relatively complex.
  • the grooves or protrusions on its inner wall increase the processing difficulty of the sleeve, thereby increasing the production cost.
  • TPA is made of metal and has a smaller product size under the same mechanical properties. At the same time, its anti-retraction structure does not require additional protrusions or grooves on the inner wall of the sheath, reducing the difficulty of processing the sheath.
  • the present specification provides a TPA fixed structure connector, comprising a sheath, a conductor assembly and a TPA assembly, wherein the conductor assembly is at least partially disposed in the sheath, a groove for inserting the TPA assembly is disposed on a side of the sheath, and the TPA assembly is inserted into the groove to axially limit the conductor assembly;
  • the TPA component is in the shape of a flat plate, and the side wall of the TPA component is provided with at least one clip structure protruding from the flat surface and inclined toward the outside of the side wall of the TPA component.
  • the side surfaces of the sheath on both sides of the side where the groove is located are provided with fixing holes that cooperate with the clip structure.
  • the TPA component is formed by stamping of metal sheet.
  • the snap-fit structure includes a lug connected to the side wall of the TPA assembly and protruding from the flat surface, and a hook connected to the free end of the lug and inclined toward the outside of the flat side wall, and the hook is at least partially inserted into the fixing hole.
  • the angle formed by the extension direction of the lug and the flat surface is 90°-135°.
  • cavities for accommodating the lugs are provided at both ends of the groove, and the fixing holes are connected to the cavities.
  • the cavity has a space to avoid movement of the clamping structure.
  • At least one barb is disposed on the side wall of the TPA component and abuts against the side wall of the groove.
  • the clamping point barbs are provided at two locations on a side edge of the TPA component, and a recessed portion is provided between the two clamping point barbs.
  • the conductor assembly comprises an outer conductor, an inner insulator and an inner conductor which are sequentially sleeved from the outside to the inside, a positioning groove is provided on the outer circumference of the outer conductor, and a positioning card having a single-side opening and cooperating with the positioning groove is provided in the TPA assembly.
  • both sides of the positioning card have plug-in arms extending into the groove, and the ends of the plug-in arms have chamfers.
  • TPA occupies a large volume space
  • TPA is changed from a plastic type to a metal part, which can meet higher strength and mechanical performance test requirements while being very thin in the thickness direction
  • hooks are added on both sides of TPA to form an inverted structure to prevent TPA from loosening during vibration, which causes the disadvantage of poor contact of the connector
  • the connector has the advantage of small size, which meets the development of connectors towards miniaturization and micro-miniaturization.
  • FIG1 is an exploded view of various parts in some embodiments of this specification.
  • FIG2 is a top view of some embodiments of the present specification.
  • FIG3 is a cross-sectional view taken along line A-A of FIG2 when the TPA assembly is not inserted into the sheath;
  • FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2 when the TPA assembly is inserted into the sheath.
  • this embodiment provides a TPA fixed structure connector, including a sheath 1, a conductor assembly and a TPA assembly 2, wherein the conductor assembly is at least partially disposed in the sheath 1, and a groove 11 for inserting the TPA assembly 2 is disposed on the side of the sheath 1, and the TPA assembly 2 is inserted into the groove 11 to axially limit the conductor assembly, and the axial limiting makes it impossible for the conductor assembly to move forward or backward in the sheath 1, but it can be rotated to meet the connection requirements of the internal wires;
  • the TPA component 2 is in the shape of a flat plate, and the side wall of the TPA component 2 is provided with at least one clip structure protruding from the flat surface and inclined toward the outside of the side wall of the TPA component 2.
  • the side surfaces of the sheath 1 on both sides of the side where the groove 11 is located are provided with fixing holes 12 that cooperate with the clip structure.
  • the clip structure extends into the fixing hole 12 to limit the TPA component 2 to prevent it from accidentally falling out of the groove 11.
  • the TPA component 2 is stamped from a metal sheet. Since the clip-on structure needs to extend into the fixing hole 12 , the clip-on structure made of plastic TPA cannot meet the rigidity requirement and the clip-on structure may break during use. Therefore, the TPA of this structure needs to be made of metal.
  • the snap-fit structure includes a lug 23 connected to the side wall of the TPA component 2 and protruding from the flat surface, and a hook 25 connected to the free end of the lug 23 and inclined toward the outside of the flat side wall.
  • the hook 25 is at least partially inserted into the fixing hole 12. Since the hook 25 is inclined toward the outside of the flat side wall, the width of both sides of the hook 25 under normal conditions is greater than the inner wall width of the sheath 1. After the TPA component 2 is inserted into the sheath 1, the hook 25 can be inserted into the fixing hole 12 for fixing. When the hook 25 is inserted into or removed from the fixing hole 12, the hook 25 is pinched toward the inside of the TPA component 2.
  • the lug 23 is deformed inwardly, and the width of both sides of the hook 25 is less than the inner wall width of the sheath 1, so that it can be easily inserted or removed.
  • the TPA component made of plastic will also be damaged, so this manual adopts a metal structure.
  • the lug 23 is provided to make the hook 25 elastic. When the hook 25 is released, the hook 25 returns to its original position under the stress of the lug 23. At the same time, the force arm when pinching the hook 25 is increased, and the force required for pinching is reduced, which is convenient for operation.
  • the angle formed by the extension direction of the lug 23 and the flat surface is 90°-135°, and the angle can be selected according to the metal material used, the thickness of the plate and the specific use of the connector. When the angle becomes larger, the elasticity of the lug 23 increases.
  • cavities 13 for accommodating the lugs 23 are provided at both ends of the groove 11, and the fixing hole 12 is communicated with the cavity 13.
  • the cavity 13 has space to avoid movement of the snap-fit structure, so as to facilitate the insertion of the TPA component 2 into the sheath 1 or removal thereof.
  • At least one barb 21 is disposed on the side wall of the TPA component 2, which is in contact with the side wall of the groove 11.
  • the width between the barbs 21 is slightly larger than the inner wall width of the sheath 1.
  • the conductor assembly includes an outer conductor 3, an inner insulator 4 and an inner conductor 5 which are sequentially sleeved from the outside to the inside.
  • a positioning groove 31 is provided on the outer circumference of the outer conductor 3.
  • a positioning card 22 with a single-side opening and matching with the positioning groove 31 is provided in the TPA assembly 2. The positioning card 22 axially positions the positioning groove 31 so that it can only rotate.
  • Both sides of the positioning card 22 have plug-in arms 26 extending into the groove 11.
  • the ends of the plug-in arms 26 have chamfers 24 to facilitate insertion into the groove 11 of the sheath 1.
  • this instruction manual When using this instruction manual, first insert the TPA component 2 into the sheath 1 along the groove 11 to axially position the conductor component inside it; during the insertion process, squeeze the hook 25 inward, and release it after installation.
  • the hook 25 returns to its original position under its own elastic force and snaps into the fixing hole 12; compared with the TPA made of plastic, this instruction manual has the advantages of small size and reliable use.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

La présente invention concerne un connecteur de structure de fixation de TPA, comprenant une gaine, un ensemble conducteur et un ensemble TPA. L'ensemble conducteur est au moins partiellement disposé dans la gaine, une rainure dans laquelle l'ensemble TPA est inséré est formée dans la surface latérale de la gaine, et l'ensemble TPA est inséré dans la rainure pour limiter axialement l'ensemble conducteur ; l'ensemble TPA est d'une forme de plaque plate, au moins une structure d'encliquetage faisant saillie à partir de la surface de la forme de plaque plate et inclinée vers le côté externe de la paroi latérale de l'ensemble TPA est disposée sur la paroi latérale de l'ensemble TPA, et des trous de fixation correspondant à la structure d'encliquetage sont formés dans les surfaces latérales de la gaine situées sur deux surfaces latérales où la rainure est située. Afin de résoudre le problème selon lequel le TPA occupe un espace de grand volume, le TPA est changé d'une partie en plastique en une partie métallique dans la présente invention, de telle sorte qu'une résistance élevée et des exigences de test de propriété mécanique peuvent être satisfaites même si le TPA est très mince dans le sens de l'épaisseur.
PCT/CN2023/129557 2022-11-03 2023-11-03 Connecteur de structure de fixation de tpa WO2024094164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202222928932.5 2022-11-03
CN202222928932.5U CN219017960U (zh) 2022-11-03 2022-11-03 一种tpa固定结构连接器

Publications (1)

Publication Number Publication Date
WO2024094164A1 true WO2024094164A1 (fr) 2024-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/129557 WO2024094164A1 (fr) 2022-11-03 2023-11-03 Connecteur de structure de fixation de tpa

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CN (1) CN219017960U (fr)
WO (1) WO2024094164A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN219017960U (zh) * 2022-11-03 2023-05-12 长春捷翼汽车科技股份有限公司 一种tpa固定结构连接器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190109399A1 (en) * 2017-10-05 2019-04-11 J.S.T. Corporation Terminal position assurance device for electrical connector
CN210838197U (zh) * 2019-12-05 2020-06-23 东莞市思索连接器有限公司 一种改良tpa插接结构的二段装配式连接器
CN217182505U (zh) * 2022-05-20 2022-08-12 河南天海电器有限公司 一种带tpa结构的连接器
CN217405767U (zh) * 2022-06-22 2022-09-09 河南天海电器有限公司 一种带tpa结构的混合连接器公端护套组件
CN115207674A (zh) * 2022-07-20 2022-10-18 中航光电科技股份有限公司 一种tpa锁紧结构及其tpa锁止片
CN219017960U (zh) * 2022-11-03 2023-05-12 长春捷翼汽车科技股份有限公司 一种tpa固定结构连接器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190109399A1 (en) * 2017-10-05 2019-04-11 J.S.T. Corporation Terminal position assurance device for electrical connector
CN210838197U (zh) * 2019-12-05 2020-06-23 东莞市思索连接器有限公司 一种改良tpa插接结构的二段装配式连接器
CN217182505U (zh) * 2022-05-20 2022-08-12 河南天海电器有限公司 一种带tpa结构的连接器
CN217405767U (zh) * 2022-06-22 2022-09-09 河南天海电器有限公司 一种带tpa结构的混合连接器公端护套组件
CN115207674A (zh) * 2022-07-20 2022-10-18 中航光电科技股份有限公司 一种tpa锁紧结构及其tpa锁止片
CN219017960U (zh) * 2022-11-03 2023-05-12 长春捷翼汽车科技股份有限公司 一种tpa固定结构连接器

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