Fakra connector

Abstract

A FAKRA connector, comprising a housing (1) and locking members (2), wherein each locking member is provided with pre-install structures and locking structures, the pre-install structures being pre-install elastic arms, and the pre-install elastic arms being provided with pre-install snap-fit portions configured to be snap-fitted with the housing when the locking members are pre-installed on the housing; and the locking structures are locking elastic arms (21), the locking elastic arms being provided with locking snap-fit portions (211), and the locking snap-fit portions being configured to be snap-fitted with the housing when the locking members and the housing are locked. The pre-install snap-fit portions on the pre-install elastic arms are snap-fitted with the housing when the locking members are pre-installed; when the locking members are locked, the locking snap-fit portions on the locking elastic arms are snap-fitted with the housing, such that snap-fitting positions between the locking members and the housing has elasticity; and when the locking members are disassembled, snap-fitting structures are not easily damaged, thereby being suitable for the operation of reinstalling the locking members after disassembly.

Description

A Fakra connector Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a Fakra connector. Background Art

[0002] The mini Fakra high-frequency communication connector is a coaxial signal transmission connector, mainly adapted to the needs of autonomous driving and vehicle networking. It has a high degree of integration and can realize multiple high-frequency signal transmission channels, among which four channels are the most mainstream. For example, a mini Fakra automotive connector disclosed in the Chinese utility model patent with authorization announcement number CN212783920U includes a plastic shell, which is a shell. The front end surface of the plastic shell is provided with a through hole connected to the outer conductor, and the rear end surface of the plastic shell is provided with a docking tube for connecting to the outer conductor. The front and back directions are the plugging directions for the connector and the adapter connector. The left and right sides of the plastic shell are symmetrically provided with slots that dock with the buckle. The outer conductor is a terminal component of the connector. The outer conductor is inserted into the plastic shell and then the buckle is fastened. While the outer conductor and the plastic shell are interferingly positioned using the elastic arm buckle, the buckle will perform a secondary lock to increase its reliability. The buckle constitutes a locking piece for secondary locking, and the buckle has a fixing part and a connecting part. The connecting part is the main body of the buckle, and a first clamping block is provided on the connecting part. The fixing part constitutes an elastic arm, and a second clamping block is provided on the fixing part. When installing the buckle, the first clamping block and the second clamping block can be clamped in the corresponding clamping grooves of the plastic shell. The clamping blocks constitute the clamping part, and the first clamping block is the forced clamping part, and the second clamping block is the clamping part on the elastic arm.

[0003] Because the housing and locking member of the Fakra connector are two separate parts, the locking member is currently pre-installed on the housing to facilitate assembly and loading. After the terminal component is inserted into the housing along the front-to-back direction and engages with the snap on the housing to achieve a primary lock, the locking member is finally assembled into place to achieve a secondary lock. For connectors with this structure, the locking member is typically pre-installed on the housing by first engaging the snaps on the left and right spring arms with the housing. This pre-installation of the locking member does not affect the installation of the terminal component into the housing. After the terminal component is installed, the locking member is then pressed, and the forced-installation snap-in member on the front side wall of the locking member engages with the housing to achieve final locking. The left and right spring arms and their snap-in members constitute the pre-installation structure, and the forced-installation snap-in member constitutes the locking structure. During the use and assembly of the connector, it is sometimes necessary to remove the locking part. The pre-installed structure is a spring arm structure, which can be disassembled smoothly. However, the side wall of the strong clamping part of the locking part has no elasticity. After the locking part is assembled, when it needs to be disassembled again, the strong clamping part is weak and easily damaged when the locking part is pulled. It cannot be disassembled and then installed, and the parts are scrapped and wasted.

[0004] Utility Model Content

[0005] The purpose of the utility model is to provide a Fakra connector to solve the problem that the locking piece of the current Fakra connector is easily damaged when it is disassembled after being locked.

[0006] The technical solution of the Fakra connector of the present utility model is:

[0007] A Fakra connector includes a housing and a locking piece. The locking piece has a pre-installed structure and a locking structure. The pre-installed structure is a pre-installed spring arm. The pre-installed spring arm is provided with a pre-installed clamping portion for clamping and cooperating with the housing when the locking piece is pre-installed on the housing. The locking structure is a locking spring arm. The locking spring arm is provided with a locking clamping portion. The locking clamping portion is used to clamp and cooperate with the housing when the locking piece and the housing are locked.

[0008] Furthermore, the pre-loading arm is also provided with a secondary clamping portion for clamping and cooperating with the shell when the locking piece is locked with the shell.

[0009] Furthermore, the pre-installed clamping portion and the secondary clamping portion are both convex structures.

[0010] Furthermore, the pre-installed clamping portion and the secondary clamping portion are spaced apart in the overhanging direction of the pre-installed elastic arm, the pre-installed clamping portion and the secondary clamping portion form a limiting groove, and the shell has a pre-installed clamping fitting portion for clamping into the limiting groove.

[0011] Furthermore, the clamping force of the secondary clamping portion is smaller than the clamping force of the pre-installed clamping portion.

[0012] Furthermore, the connector has a plugging direction and a first direction and a second direction perpendicular to the plugging direction. The locking piece is installed on the side of the shell in the first direction, the locking spring arm is arranged on the side of the locking piece in the second direction, and the pre-loaded spring arm is arranged on the side of the locking piece in the plugging direction.

[0013] Furthermore, pre-loaded spring arms are provided on both sides of the locking member in the plugging direction.

[0014] Furthermore, the locking member is provided with a shifting protrusion, the housing is provided with a matching cavity for the shifting protrusion to be inserted, the shifting protrusion is provided with a convex rib, and the convex rib is interference fit with the cavity wall of the matching cavity.

[0015] Furthermore, the locking member is provided with a shifting protrusion for inserting into the shell, the overhanging height of the pre-loaded arm is lower than the protruding height of the shifting protrusion, and a groove is provided on the locking member between the shifting protrusion and the pre-loaded arm.

[0016] Furthermore, the locking clamping portion is a protruding structure, and a locking clamping groove for the locking clamping portion to be clamped is provided on the shell.

[0017] Beneficial effect: The present invention is improved on the basis of the Fakra connector in the prior art. By setting the pre-installation structure and the locking structure of the Fakra connector into elastic arm structures, the pre-installation clamping portion on the pre-installation elastic arm is used to clamp and cooperate with the shell when the locking piece is pre-installed, and the locking clamping portion on the locking elastic arm is used to clamp and cooperate with the shell when the locking piece is locked. In this way, the clamping joint between the locking piece and the shell is elastic, and the clamping structure is not easily damaged when the locking piece is disassembled, which is suitable for the operation of reinstalling the locking piece after disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic structural diagram of an embodiment of a Fakra connector according to the present invention when the housing and the locking member are separated;

[0019] FIG2 is a schematic diagram of the locking member in FIG1 ;

[0020] FIG3 is a schematic diagram of the cooperation between the locking spring arm of the locking member and the housing of the Fakra connector embodiment of the present invention;

[0021] FIG4 is a schematic diagram showing the cooperation between the pre-loaded arm of the locking member and the housing of the Fakra connector embodiment of the present invention.

[0022] In the figure: 1. Shell; 11. Embedded groove; 12. Locking slot; 13. Front snap-fitting portion; 14. Rear snap-fitting portion; 2. Locking member; 20. Raised rib; 21. Locking spring arm; 211. Locking snap-fitting protrusion; 22. Front pre-loading arm; 221. Front pre-loading snap-fitting protrusion; 222. Secondary snap-fitting protrusion; 23. Rear pre-loading arm; 231. Rear pre-loading snap-fitting protrusion; 24. Shifting protrusion. DETAILED DESCRIPTION

[0023] The Fakra connector of the present invention is configured such that both the pre-installation structure and the locking structure are formed into elastic arm structures. The pre-installation clamping portion on the pre-installation elastic arm is used to clamp and cooperate with the housing when the locking piece is pre-installed, and the locking clamping portion on the locking elastic arm is used to clamp and cooperate with the housing when the locking piece is locked. In this way, the clamping joint between the locking piece and the housing is elastic, and the clamping structure is not easily damaged when the locking piece is disassembled. The connector is suitable for operations in which the locking piece can be disassembled and then reassembled.

[0024] Embodiment of the Fakra connector of the present utility model:

[0025] As shown in Figures 1, 2, 3, and 4, the Fakra connector includes a housing 1, a locking member 2, and a terminal component. The terminal component is not shown in the figure. The housing 1 is provided with a terminal installation cavity that runs through from front to back. The terminal component is inserted into the terminal installation cavity from back to front. The front end of the housing 1 is used to plug into the adapter connector. The plug-in direction of the Fakra connector is the front-to-back direction, and the plug-in end is the front end. The housing 1 is a plastic housing 1. After the terminal component is inserted into the housing 1, the plastic shell spring arm in the housing 1 will be stuck in the corresponding groove of the terminal component, which has a function of preventing the terminal component from retreating. In order to ensure reliable anti-retreat, the plastic shell spring arm is limited by installing a locking member 2 on the housing 1. The locking member 2 can prevent the plastic shell spring arm from bouncing up to ensure that the plastic shell spring arm is reliably engaged with the terminal component.

[0026] There are two locking members 2, one on the upper and lower sides of the housing 1, with the upper and lower directions being the first direction. The upper and lower sides of the housing 1 are provided with a mounting cavity for the locking member 2 to fit in. The locking member 2 comprises a main body, and a pre-installation structure and a locking structure provided on the main body. The pre-installation structure is used to pre-install the locking member 2 on the housing 1 before installing the terminal component, facilitating the overall movement. After the terminal component is installed on the housing 1, the locking structure secures the locking member 2 in place on the housing 1, thereby locking and limiting the plastic shell spring arm and the terminal component.

[0027] The preloading structure is a preloading arm. There are two preloading arms, which are respectively arranged on the front and rear sides of the locking member 2. The two preloading arms are a front preloading arm 22 and a rear preloading arm 23. The front preloading arm 22 and the rear preloading arm 23 are both cantilevered in the upper and lower directions based on the main body of the locking member 2 and cantilevered toward the inner cavity of the shell 1. The preloading arm is provided with a preloading clamping portion for clamping and cooperating with the shell 1 when the locking member 2 is preloaded onto the shell 1. The preloading clamping portion of the front preloading arm 22 is a front preloading clamping protrusion 221, and the preloading clamping portion of the rear preloading arm 23 is a rear preloading clamping protrusion 231. The front preloading clamping protrusion 221 and the rear preloading clamping protrusion 231 are respectively arranged on the opposite sides of the front preloading arm 22 and the rear preloading arm 23, and the protruding directions of the front preloading clamping protrusion 221 and the rear preloading clamping protrusion 231 are opposite to each other. The front and rear sides of the snap-fitting cavity on the side of the shell 1 are respectively provided with a front snap-fitting portion 13 and a rear snap-fitting portion 14. The front snap-fitting portion 13 is used to snap-fit ​​with the front pre-installed snap-fitting protrusion 221, and the rear snap-fitting portion 14 is used to snap-fit ​​with the rear pre-installed snap-fitting protrusion 231.

[0028] The front pre-loading arm 22 is also provided with a secondary clamping portion for clamping and cooperating with the shell 1 when the locking member 2 is locked with the shell 1. The secondary clamping portion is a secondary clamping protrusion 222. The secondary clamping protrusion 222 is consistent with the protrusion direction of the front pre-loading clamping protrusion 221. The front pre-loading clamping protrusion 221 and the secondary clamping protrusion 222 are spaced apart in the overhang direction of the front pre-loading arm 22. The secondary clamping protrusion 222 is closer to the front pre-loading arm 2 than the front pre-loading clamping protrusion 221. 2, the protrusion height of the secondary clamping protrusion 222 is smaller than the protrusion height of the front pre-installed clamping protrusion 221, so that the clamping force of the secondary clamping part during the clamping installation is smaller than the clamping force of the pre-installed clamping part during the clamping installation. A limiting groove is formed between the front pre-installed clamping protrusion 221 and the secondary clamping protrusion 222. When the locking member 2 is in the pre-installed state, the front clamping fitting portion 13 is clamped into the limiting groove, and the front clamping fitting portion 13 constitutes a pre-installed clamping fitting portion for clamping into the limiting groove.

[0029] The locking structure is a locking spring arm 21. There are two locking spring arms 21, which are respectively arranged on the left and right sides of the locking member 2. The left and right directions constitute the second direction. The locking spring arm 21 is arranged on the side of the locking member 2 in the second direction. The locking spring arm 21 is cantilevered in the up and down directions and cantilevered toward the inner cavity of the shell 1. A locking clamping part is provided on the locking spring arm 21. The locking clamping part is used to clamp and cooperate with the shell 1 when the locking member 2 is locked with the shell 1. The locking clamping part is a locking clamping protrusion 211. The shell 1 is provided with a locking clamping groove 12 for the locking clamping protrusion 211 to be clamped.

[0030] A shifting protrusion 24 is provided in the middle of the main body of the locking member 2 in the left-right direction. Two locking spring arms 21 are located on either side of the shifting protrusion 24. The shifting protrusion 24 is located on the side of the main body of the locking member 2 facing the inner cavity of the housing 1. The shifting protrusion 24 has a front portion connected to the main body and a rear portion that cantilevers outward from the main body. A front pre-loading arm 22 corresponds to the shifting protrusion 24 in front and back. The front pre-loading arm 22 is spaced apart in front of the shifting protrusion 24. The cantilever height of the front pre-loading arm 22 is lower than the protrusion height of the shifting protrusion 24. A groove is also provided on the main body of the locking member 2 between the shifting protrusion 24 and the front pre-loading arm 22 to ensure the elasticity of the front pre-loading arm 22. A rear pre-loading arm 23 is provided at the rear end of the shifting protrusion 24. The spring arm structure is formed by providing a slot in the rear portion of the shifting protrusion 24. The card-fitting cavity of the shell 1 includes an embedding groove 11. When the locking member 2 is locked with the shell 1, the rear part of the shifting protrusion 24 of the locking member 2 is inserted into the embedding groove 11, and the embedding groove 11 constitutes a matching cavity. The left and right sides of the shifting protrusion 24 are respectively provided with ribs 20. The ribs 20 are interference fit with the left and right opposite groove walls of the embedding groove 11 to improve the assembly stability of the locking member 2.

[0031] The locking mechanism 211 of the locking arm 21 does not enter the locking groove 12 on the housing 1, and does not affect the insertion of the terminal component into the housing 1. After the terminal component is installed in the housing 1, the plastic shell elastic arm of the housing 1 will be snapped into the corresponding groove of the terminal component. Finally, the locking member 2 is pressed down, and the locking clamping protrusion 211 on the locking elastic arm 21 of the locking member 2 is snapped into the locking clamping groove 12, which has a locking effect to prevent the plastic shell elastic arm from bouncing up. At the same time, the shifting protrusion 24 enters the housing 1, and the rib 20 on the shifting protrusion 24 is tightly matched with the embedded groove 11. The secondary clamping protrusion 222 on the front pre-loading elastic arm 22 passes over the front clamping fitting part 13 and enters the housing 1, and forms a clamping fit with the front clamping fitting part 13 to form a stop limit for the locking member 2. In this way, the cooperation of various parts together prevents the locking member 2 from falling off. Since the pre-installed structure and the locking structure are both clamped with elastic arms, they are not easily damaged during disassembly and have high reliability.

[0032] In other embodiments, the secondary clamping portion may not be provided, so that the structure of the front pre-loading arm is the same as that of the rear pre-loading arm.

[0033] In other embodiments, the pre-loading clamping portion and the secondary clamping portion on the front pre-loading arm can also be grooves, and accordingly, the front clamping fitting portion is a clamping protrusion, and the clamping protrusion is adapted to be clamped with the groove.

[0034] In other embodiments, secondary clamping portions may be provided on both the front pre-loading arm and the rear pre-loading arm.

[0035] In other embodiments, the front snap-fitting portion may be configured as a groove, which is used to snap-fit ​​with the pre-installed snap-fitting portion and the secondary snap-fitting portion, and the groove wall may limit the pre-installed snap-fitting portion or the secondary snap-fitting portion.

[0036] In other embodiments, the protrusion height of the secondary clamping portion on the front pre-loading arm may also be consistent with the protrusion height of the pre-loading clamping portion.

[0037] In other embodiments, the pre-loading elastic arm may be arranged on the side of the locking member in the left-right direction, and the locking elastic arm may be arranged on the side of the locking member in the front-back direction.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A Fakra connector, comprising a housing and a locking member, wherein the locking member has a pre-installed structure and a locking structure, wherein the pre-installed structure is a pre-installed spring arm, and the pre-installed spring arm is provided with a pre-installed clamping portion for clamping with the housing when the locking member is pre-installed on the housing, wherein: The locking structure is a locking spring arm, on which a locking clamping portion is provided. The locking clamping portion is used to clamp and cooperate with the shell when the locking member is locked with the shell.

2. The fakra connector according to claim 1, characterized in that: The pre-loading arm is also provided with a secondary clamping portion for clamping and cooperating with the shell when the locking piece and the shell are locked.

3. The fakra connector according to claim 2, characterized in that: Both the pre-installed clamping portion and the secondary clamping portion are convex structures.

4. The fakra connector according to claim 3, characterized in that: The pre-installed clamping portion and the secondary clamping portion are spaced apart in the overhanging direction of the pre-installed elastic arm, and the pre-installed clamping portion and the secondary clamping portion form a limiting groove. The shell has a pre-installed clamping matching portion for clamping into the limiting groove.

5. The Fakra connector according to claim 2, 3 or 4, characterized in that: The clamping force of the secondary clamping portion is smaller than the clamping force of the pre-installed clamping portion.

6. The Fakra connector according to any one of claims 1 to 4, characterized in that: The connector has a plugging direction and a first direction and a second direction perpendicular to the plugging direction. The locking piece is installed on the side of the shell in the first direction, the locking spring arm is arranged on the side of the locking piece in the second direction, and the pre-loaded spring arm is arranged on the side of the locking piece in the plugging direction.

7. The fakra connector according to claim 6, characterized in that: Pre-loaded spring arms are provided on both sides of the locking piece in the plugging direction.

8. The Fakra connector according to any one of claims 1 to 4, characterized in that: The locking piece is also provided with a shift convex portion, the shell is provided with a matching cavity for the shift convex portion to be inserted, the shift convex portion is provided with a convex rib, and the convex rib is interference-fitted with the cavity wall of the matching cavity.

9. The Fakra connector according to any one of claims 1 to 4, characterized in that: The locking piece is also provided with a shift convex portion for inserting into the shell, the overhang height of the pre-loaded bullet arm is lower than the protrusion height of the shift convex portion, and the locking piece is also provided with a groove between the shift convex portion and the pre-loaded bullet arm.

10. The Fakra connector according to any one of claims 1 to 4, characterized in that: The locking clamping portion is a protruding structure, and the shell is provided with a locking clamping groove for the locking clamping portion to be clamped.

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