Waterproof Fakra connector

Abstract

The utility model discloses a waterproof Fakra connector and a wire end connector. The waterproof Fakra connector comprises a wire end plastic shell, a plugging column is arranged in the wire end plastic shell, a first plugging cavity and a second plugging cavity are arranged in the plugging column, a first plugging part is arranged around the plugging column, a power supply female terminal is arranged in the first plugging cavity, and a connecting terminal is arranged in the second plugging cavity; the board end connector comprises a board end plastic shell and a second insertion part arranged in the board end plastic shell, and a power supply terminal pin and a connection terminal pin are arranged in the second insertion part; the end portion of the insertion column protrudes out of the front end face of the first insertion portion, and a liquid silica gel waterproof ring is arranged on the side face of the insertion column and located between the second insertion portion and the first insertion portion. According to the waterproof Fakra connector, the extension line end plastic shell is adopted, the liquid silica gel waterproof ring is additionally arranged, the extension board end plastic shell is matched with the liquid silica gel, and the waterproof function of the plug-in position is achieved; a plastic sleeve structure is added, assembling is carried out on the basis of an original conductor assembly, and the waterproof function of the wire end connector is further achieved.

Description

Technical Field

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

[0002] Automotive connectors are the signal hubs connecting electronic systems within a car. With the rapid development of electrification and intelligent vehicles, higher requirements are being placed on connector waterproofing, safety, and functionality. There is an urgent need to replace traditional connectors with innovative structures, functionality, waterproofing, and safety features to adapt to market trends. Traditional Fakra waterproof connectors and conventional non-waterproof Fakra connectors with power pins cannot simultaneously meet both waterproofing and power pin requirements.

[0003] Since the Fakra connector with power PIN is small in size and such products on the market are not waterproof, there is an urgent need for a Fakra connector with good sealing effect and waterproof function. Utility Model Content

[0004] Based on the above technical problems, an embodiment of the present application provides a waterproof Fakra connector that can achieve high waterproof function.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a waterproof Fakra connector, including: a line end connector, a board end connector,

[0006] The wire end connector includes a wire end plastic housing, a plug post is provided inside the wire end plastic housing, a first plug cavity and a second plug cavity are provided inside the plug post, a first plug portion is provided around the plug post, a power female terminal is provided inside the first plug cavity, and a connection terminal is provided inside the second plug cavity;

[0007] The board-end connector includes a board-end plastic housing, a second plug-in portion provided inside the board-end plastic housing, and a power terminal pin and a connection terminal pin provided inside the second plug-in portion; when the line-end connector and the board-end connector are mated and connected, the power terminal pin is inserted into the first plug-in cavity to connect with the power female terminal, and the connection terminal pin is inserted into the second plug-in cavity to connect with the connection terminal;

[0008] The end of the plug-in column protrudes from the front end surface of the first plug-in part, and a liquid silicone waterproof ring is provided on the side of the plug-in column. When the second plug-in part is inserted into the first plug-in part, the liquid silicone waterproof ring is located between the two.

[0009] Furthermore, a square plastic sleeve is provided on the outside of the power female terminal, and a pair of positioning grooves are provided on the top and bottom surfaces of the plastic sleeve. A pair of outwardly protruding stoppers are provided behind the positioning grooves, and a pair of spring hooks are provided inside the first plug-in cavity. When the spring hooks are extended into the positioning grooves, the stoppers are located exactly behind the spring hooks.

[0010] Furthermore, a flip cover for fixing the power female terminal is provided on the side of the plastic sleeve, and a stop protrusion is provided inside the flip cover.

[0011] Furthermore, it also includes a first sealing glue plug and a second sealing glue plug, the first sealing glue plug is tightly surrounded by the rear of the plastic sleeve, and the second sealing glue plug is tightly surrounded by the rear of the line end connection terminal.

[0012] Furthermore, it also includes a back cover, the rear end of the wire end plastic shell is provided with a pair of clamping protrusions, and the back cover is provided with a pair of buckling parts, and the buckling parts are matched with the clamping protrusions to fix the back cover.

[0013] Furthermore, a pair of first circular holes and second circular holes are provided on the back cover, the first circular hole is used for the power cord connected to the power female terminal to pass through, and the second circular hole is used for the coaxial cable connected to the connection terminal to pass through, and the first sealing glue plug and the second sealing glue plug are wrapped around the power cord and the coaxial cable and placed inside the back cover.

[0014] Furthermore, a locking piece is included. The board end plastic housing is provided with an inserting hole. The locking piece is detachably inserted into the inserting hole. It can lock the connecting terminal pins on the board end plastic housing.

[0015] Furthermore, the front of the wire end plastic shell is provided with an elastic button hole, and the front of the board end plastic shell is provided with a buckle pin. When the wire end connector and the board end connector are connected, the elastic button hole buckles the buckle pin, thereby locking the wire end plastic shell and the board end plastic shell together.

[0016] The beneficial effects of the present invention are: by extending the length of the plug-in column and adding a liquid silicone waterproof ring, the plastic shell at the lengthened board end cooperates with the liquid silicone waterproof ring to achieve a waterproof function at the plug-in position; in addition, by adding a plastic sleeve structure and assembling it on the basis of the original conductor component, the waterproof function of the line end connector is further achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the waterproof Fakra connector in an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a waterproof Fakra connector according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic structural diagram of a line end connector in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the line end connector in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the board-end connector in an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the board-end connector in an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the plastic sleeve structure in an embodiment of the present utility model;

[0024] Figure 8 This is a cross-sectional diagram of the plastic sleeve after being sleeved over the power female terminal in the embodiment of the present utility model;

[0025] Figure numerals: 1-wire end connector, 2-board end connector, 10-wire end plastic housing, 11-plug-in column, 101-first plug-in cavity, 102-second plug-in cavity, 103-first plug-in portion, 104-elastic button eye, 105-clamping protrusion, 106-spring hook, 20-back cover, 201-buckle portion, 202-first circular hole, 203-second circular hole, 30-liquid silicone waterproof ring, 40-second sealing glue plug, 50-first sealing glue plug, 60-power female terminal, 601-plastic Sleeve, 6010-locking groove, 6011-stop part, 6012-flip cover, 60120-stop protrusion, 602-power cord, 70-connecting terminal, 701-first insulator, 702-second insulator, 703-coaxial cable, 704-outer conductor, 706-sleeve, 705-conical step, 80-board end plastic shell, 801-second plug-in part, 802-buckle part, 803-plug-in hole, 81-locking piece, 90-connecting terminal pin, 100-power terminal pin. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] The embodiments of the present application provide a waterproof Fakra connector to address the problem of existing Fakra connectors with a power PIN and poor waterproofing. It should be noted that, in this application, the direction of the plug post relative to the rear cover is defined as front, front end, and front, while the opposite direction is defined as rear, rear end, and rear; the direction of the elastic eyelet relative to the first plug-in portion is defined as up, above, upper side, upper end, top, top, or top, while the opposite direction is defined as down, below, lower side, lower end, bottom, bottom end, or bottom.

[0028] like Figures 1 to 8 As shown in the embodiment of the present application: a waterproof Fakra connector, comprising: a line end connector 1, a board end connector 2,

[0029] Reference Figure 3-Figure 5 The line end connector 1 includes a line end plastic housing 10, a plug post 11 is provided inside the line end plastic housing 10, a first plug cavity 101 and a second plug cavity 102 are provided inside the plug post 11, a first plug portion 103 is provided around the plug post 11, a power female terminal 60 is provided inside the first plug cavity 101, and a connection terminal 70 is provided inside the second plug cavity 102;

[0030] The board-side connector 2 includes a board-side plastic housing 80 and a second plug-in portion 801 disposed within the board-side plastic housing 80. The second plug-in portion 801 includes a power terminal pin 100 and a connection terminal pin 90. When the line-side connector 1 and the board-side connector 2 are mated and connected, the power terminal pin 100 is inserted into the first plug-in cavity 101 and connected to the power female terminal 60, and the connection terminal pin 90 is inserted into the second plug-in cavity 102 and connected to the connection terminal 70.

[0031] Among them, such as Figure 2 and Figure 3 As shown, the end of the plug-in column 11 protrudes from the front end surface of the first plug-in part 103, and a liquid silicone waterproof ring 30 is provided on the side of the plug-in column 11. When the second plug-in part 801 is inserted into the first plug-in part 103, the liquid silicone waterproof ring 30 is located between the two.

[0032] By lengthening the wire end plastic housing 10 (extending the plug post 11 ) and adding a liquid silicone waterproof ring 30 , the lengthened board end plastic housing 80 cooperates with the liquid silicone waterproof ring 30 to achieve a waterproof function at the plugging position.

[0033] Reference Figure 7 A square plastic sleeve 601 is provided on the outside of the power female terminal 60. A pair of locking grooves 6010 are provided on the top and bottom surfaces of the plastic sleeve 601. A pair of outwardly protruding stoppers 6011 are provided behind the locking grooves 6010. A pair of spring hooks 106 are provided inside the first plug-in cavity 101. When the spring hooks 106 extend into the locking grooves 6010, the stoppers 6011 are just located behind the spring hooks 106.

[0034] Reference Figure 8 The side of the plastic sleeve 601 is also provided with a flip cover 6012 for securing the power female terminal 60. Preferably, the flip cover 6012 employs a hinge structure, and a stopper 60120 is provided within the flip cover 6012 to secure the position of the power female terminal 60. The assembly process is as follows: the power female terminal 60 is assembled into the plastic sleeve 601. Once in place, the hinge structure is folded and snapped shut. The snapped-in assembly is then inserted into the wire end plastic housing 10. The plastic sleeve 601 and the wire end plastic housing 10 are secured and prevented from retreating by means of the spring hook 106 and the latching groove 6010. By adding the plastic sleeve 601 structure to the existing conductor assembly, the waterproof function of the wire end connector 1 is further enhanced.

[0035] Further references Figure 4 A first insulator 701 and a second insulator 702 are provided outside the connecting terminal 70 located in the second plug-in cavity 102, and a coaxial cable 703 is connected to the rear end thereof. An outer conductor 704 and a conical platform 705 and a sleeve 706 connected thereto are further provided outward.

[0036] More preferably, a first sealing glue plug 50 and a second sealing glue plug 40 are further provided. The first sealing glue plug 50 is tightly surrounded by the rear of the plastic sleeve 601 , and the second sealing glue plug 40 is tightly surrounded by the rear of the coaxial cable 703 .

[0037] The back cover 20 is provided with a pair of first circular holes 202 and second circular holes 203. The first circular hole 202 is for the passage of a power cord 602 connected to the power female terminal 60, and the second circular hole 203 is for the passage of a coaxial cable 703 connected to the connection terminal 70. The first sealing plug 50 and the second sealing plug 40 are wrapped around the power cord 602 and the coaxial cable 703 and placed inside the back cover 20. This ensures a waterproof seal at the rear of the line end connector 1.

[0038] like Figure 2 and Figure 4 As shown, a back cover 20 is also provided. A pair of snap-fit ​​protrusions 105 are provided at the rear end of the wire end plastic housing 10 . A pair of buckling parts 201 are provided on the back cover 20 . The buckling parts 201 cooperate with the snap-fit ​​protrusions 105 to fix the back cover 20 .

[0039] like Figure 6 As shown, a locking piece 81 is also included. An insertion hole 803 is provided on the board end plastic housing 2. The locking piece 81 is detachably inserted into the insertion hole 803; it can lock the connecting terminal pin 90 on the board end plastic housing 80.

[0040] like Figure 4 and Figure 5As shown, an elastic eyelet 104 is provided at the front of the wire-end plastic housing 10, and a buckle pin 802 is provided at the front of the board-end plastic housing 80. When the wire-end connector 1 and the board-end connector 2 are connected, the elastic eyelet 104 buckles the buckle pin 802, thereby locking the wire-end plastic housing 10 and the board-end plastic housing 80.

[0041] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A waterproof Fakra connector, comprising: The wire-end connector and the board-end connector are characterized in that the wire-end connector includes a wire-end plastic shell, a plug-in column is provided inside the wire-end plastic shell, a first plug-in cavity and a second plug-in cavity are provided inside the plug-in column, a first plug-in portion is provided around the plug-in column, a power female terminal is provided inside the first plug-in cavity, and a connection terminal is provided inside the second plug-in cavity; the board-end connector includes a board-end plastic shell, a second plug-in portion provided inside the board-end plastic shell, a power terminal pin and a connection terminal pin are provided inside the second plug-in portion; when the wire-end connector and the board-end connector are mated and connected, the power terminal pin is inserted into the first plug-in cavity and connected with the power female terminal, and the connection terminal pin is inserted into the second plug-in cavity and connected with the connection terminal; wherein, the end of the plug-in column protrudes from the front end face of the first plug-in portion, and a liquid silicone waterproof ring is provided on the side of the plug-in column. When the second plug-in portion is inserted into the first plug-in portion, the liquid silicone waterproof ring is located between the two.

2. The waterproof Fakra connector according to claim 1, characterized in that: A square plastic sleeve is provided on the outside of the power female terminal. A pair of locking grooves are provided on the top and bottom surfaces of the plastic sleeve. A pair of outwardly protruding stoppers are provided behind the locking grooves. A pair of spring hooks are provided inside the first plug-in cavity. When the spring hooks are extended into the locking grooves, the stoppers are located exactly behind the spring hooks.

3. The waterproof Fakra connector according to claim 2, characterized in that: A flip cover for fixing the power female terminal is further provided on the side of the plastic sleeve, and a stop protrusion is provided inside the flip cover.

4. The waterproof Fakra connector according to claim 2, characterized in that: It also includes a first sealing glue plug and a second sealing glue plug. The first sealing glue plug is tightly surrounded by the rear of the plastic sleeve, and the second sealing glue plug is tightly surrounded by the rear of the line end connection terminal.

5. The waterproof Fakra connector according to claim 4, characterized in that: It also includes a back cover, a pair of snap-fit ​​protrusions are provided on the rear end of the wire end plastic housing, and a pair of buckling parts are provided on the back cover, and the buckling parts are matched with the snap-fit ​​protrusions to fix the back cover.

6. The waterproof Fakra connector according to claim 5, characterized in that: The back cover is provided with a pair of first circular holes and a second circular hole. The first circular hole is used for the power cord connected to the power female terminal to pass through, and the second circular hole is used for the coaxial cable connected to the connection terminal to pass through. The first sealing glue plug and the second sealing glue plug are wrapped around the power cord and the coaxial cable and placed inside the back cover.

7. The waterproof Fakra connector according to claim 1, characterized in that: It also includes a locking piece, wherein the plastic housing at the plate end is provided with an inserting hole, and the locking piece is detachably inserted into the inserting hole; It can lock the connecting terminal pins on the board end plastic housing.

8. The waterproof Fakra connector according to claim 1, characterized in that: The front of the wire end plastic housing is provided with an elastic button hole, and the front of the board end plastic housing is provided with a buckle pin. When the wire end connector and the board end connector are connected, the elastic button hole buckles the buckle pin to lock the wire end plastic housing and the board end plastic housing.

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