TYPE-C double-layer board end connector

Abstract

The utility model discloses a TYPE-C double-layer plate end connector, which comprises a plastic plug-in connector, an electric connection element and a metal rear cover, one end of the plastic plug-in connector is provided with a plug-in interface used for being in butt joint with a TYPE-C wire end connector, and the other end of the plastic plug-in connector is provided with a mounting groove communicated with the plug-in interface; the power connection element comprises a TYPE-C female seat inserted in the mounting groove, and an upper row of terminal assemblies and a lower row of terminal assemblies which are fixedly arranged in the TYPE-C female seat and are arranged side by side up and down; and the metal rear cover covers the rear end of the power connection element and is clamped and fixed with the plastic butt joint. According to the TYPE-C double-layer board end connector provided by the utility model, through a novel structure of changing a single-layer single contact into a double-layer double contact, defects such as splash screen or transient interruption caused by failure of the single contact during single-layer plug-in are made up, and stability and reliability of connection are significantly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector, especially, relate to a TYPE-C double -deck board end connector. BACKGROUND

[0002] The vehicle-mounted TYPE-C board end connector plays an important role in the connection of vehicle-mounted electronic equipment, is small and multifunctional, can charge and transmit power, and can also be compatible with data transmission of various equipment, and is widely applied to the connection of audio-visual equipment, storage equipment or other vehicle-mounted equipment.

[0003] However, the existing vehicle-mounted TYPE-C board end connector often adopts a single-layer contact structure, which can meet the basic connection requirements in normal environment. However, during the operation of the automobile, especially when driving on bumpy roads, the equipment is often in a continuous vibration environment. Such a vibration environment has a great influence on the connection stability and reliability of the single-layer contact structure of the vehicle-mounted TYPE-C board end connector. The structure of the single-layer contact is prone to failure, which may cause flickering or instantaneous failure and other adverse phenomena, affecting the normal operation of the vehicle-mounted equipment, possibly causing loss of driving image data, or interfering with the attention of the driver, and constituting a certain driving safety hazard.

[0004] Therefore, in view of the single-layer contact structure of the existing vehicle-mounted TYPE-C board end connector and its problems in the vibration environment, further technical improvement is urgently needed to adapt to the vibration environment and ensure the continuity of signal transmission and the normal operation of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a TYPE-C double -deck board end connector to solve the problems of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A TYPE-C double -deck board end connector, comprising a plastic plug connector, an electrical connection element and a metal back cover, wherein one end of the plastic plug connector is provided with a plug interface for connecting with a TYPE-C line end connector, and the other end is provided with an installation slot connected with the plug interface;The electrical connection element comprises a TYPE-C female socket inserted into the installation slot and an upper and lower side-by-side arranged upper and lower terminal assembly and lower terminal assembly fixed in the TYPE-C female socket;The metal back cover is arranged at the rear end of the electrical connection element and is clamped and fixed with the plastic plug connector.

[0008] Further, the TYPE-C female seat comprises an inner shell with a TYPE-C interface and an outer shell sleeved outside the inner shell, the inner shell is bent downward at the top rear end and extends to form a fixed baffle, the fixed baffle extends downward to form a first pin, and the outer shell is bent downward to form a second pin.

[0009] Further, the upper row terminal assembly comprises a plurality of first conductive terminals and a first terminal fixing glue core for fixing the first conductive terminals arranged at equal intervals by using an insert injection molding process, the first terminal fixing glue core is secondarily injection molded to form a first insulating seat, and the first insulating seat is provided with a positioning hole penetrating through the first terminal fixing glue core; the lower row terminal assembly comprises a plurality of second conductive terminals same in number as the first conductive terminals and a second terminal fixing glue core for fixing the second conductive terminals arranged at equal intervals by using an insert injection molding process, the second terminal fixing glue core is secondarily injection molded to form a second insulating seat, the second insulating seat is provided with a guide pin matched with the positioning hole, and the second insulating seat is installed below the first insulating seat through the guide pin and is fixed through a clamping hook.

[0010] Further, the contact portions of the first conductive terminals and the second conductive terminals are folded and overlapped to increase the thickness of the contact portions.

[0011] Further, the upper row terminal assembly is covered by a shielding sheet above and the lower row terminal assembly is covered by a shielding sheet below.

[0012] Further, a shielding partition plate is arranged between the upper row terminal assembly and the lower row terminal assembly.

[0013] Further, first and second elastic contact arms elastically abutting against ground terminals in the first conductive terminals and the second conductive terminals are formed on both sides of the shielding partition plate by bending.

[0014] Further, at least one plug-in guiding structure for improving plug-in accuracy is arranged in the plug-in interface.

[0015] Further, an elastic locking sheet extending downward is formed on the upper wall of the plastic plug-in connector, and a locking hole matched with the elastic locking sheet is arranged on the upper wall of the metal back cover.

[0016] Further, guide grooves are symmetrically arranged on the two outer side walls of the plastic plug-in connector, guide blocks matched with the positions of the guide grooves are formed on the side walls of the metal back shell, and the guide blocks and the guide grooves are slidingly matched to ensure the assembly accuracy between the plastic plug-in connector and the metal back shell.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] The TYPE-C double-layer board end connector provided by the utility model has the novel structure of changing single-layer single contact into double-layer double contact, and the badness of flash screen or instantaneous breakage after single-layer single contact failure is compensated, and the stability and reliability of connection are obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The following description in the drawings is only some embodiments, and other drawings can be obtained according to the drawings without creative labor for those skilled in the art. In the drawings:

[0020] Figure 1 A structure schematic view of a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0021] Figure 2 A sectional view of a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0022] Figure 3 An explosion view of a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0023] Figure 4 A structure schematic view of an electricity connection element in a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0024] Figure 5 An explosion view of an electricity connection element in a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0025] Figure 6 An explosion view of a TYPE-C terminal assembly main body in a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure;

[0026] Figure 7 A structure schematic view of a first conductive terminal in a TYPE-C double-layer board end connector provided by the utility model embodiment is shown in the figure.

[0027] In the drawings, the component list represented by each mark is as follows:

[0028] 1-plastic plug-in connector, 101-plug-in interface, 102-clamping hole, 103-mistake-proof bump, 104-guiding slot, 105-mounting groove, 106-guiding groove, 107-elastic locking piece, 2-TYPE-C female socket, 201-inner shell, 202-fixed baffle, 203-fixed arm, 204-first pin, 205-limiting protrusion, 206-outer shell, 207-second pin, 3-upper row of terminal assemblies, 301-first conductive terminal, 302-first terminal fixed glue core, 303-first insulating seat, 304-positioning hole, 305-clamping groove, 306-terminal body, 307-soldering leg, 308-contact part, 4-lower row of terminal assemblies, 401-second conductive terminal, 402-second terminal fixed glue core, 403-second insulating seat, 404-guiding pin, 405-claw, 5-shielding sheet, 6-shielding partition, 601-first elastic contact arm, 602-second elastic contact arm, 7-metal back cover, 701-fixed column, 702-guiding block, 703-plug-in plate, 704-locking hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] The utility model embodiment provides a TYPE-C double-layer board end connector, including plastic plug-in connector 1, electricity connection element and metal back cover 7, specific:

[0031] As Figures 1 to 3As shown, the plastic plug-in connector 1 is integrally injection molded, and the front end of the plastic plug-in connector 1 is provided with a plug-in interface 101 for connecting with the TYPE-C line end connector, and the plug-in interface 101 is provided with a plug-in guide structure for improving the plug-in accuracy. The plug-in guide structure includes an error-proof protrusion 103 parallel to the plug-in direction and a guide slot 104 for guiding the connector to be connected to the power element, ensuring accurate connection. The rear end of the plastic plug-in connector 1 is provided with a mounting groove 105 for mounting the power element, and the mounting groove 105 is in communication with the plug-in interface 101, so that when the TYPE-C line end connector is inserted into the TYPE-C board end connector, the TYPE-C line end connector can be electrically connected with the power element in the plastic plug-in connector 1. The top of the plastic plug-in connector 1 is formed with a clamping hole 102 for fixing and stopping the TYPE-C line end connector, and when the TYPE-C line end connector is inserted into the TYPE-C double-layer board end connector, the buckle member on the top of the TYPE-C line end connector can be clamped with the clamping hole 102, preventing the TYPE-C line end connector of the vehicle-mounted data line from falling off the TYPE-C double-layer board end connector on the vehicle-mounted equipment PCB during the vehicle driving process, thereby ensuring the connection stability between the vehicle-mounted data line and the vehicle-mounted equipment.

[0032] As shown in the Figures 1 to 7 The power element includes a TYPE-C female seat 2 and a TYPE-C terminal assembly main body inserted into the TYPE-C female seat 2. The TYPE-C female seat 2 is formed by bending a metal sheet and is inserted into the mounting groove 105. The TYPE-C female seat 2 includes an inner housing 201 and an outer housing 206. The interface shape of the inner housing 201 is a rounded rectangle, forming a TYPE-C interface for inserting a TYPE-C male head. The top surface of the inner housing 201 is bent downward and extended at the rear end to form a fixed baffle 202, which fixes the TYPE-C terminal assembly inserted into the TYPE-C female seat 2. The side edge of the fixed baffle 202 is bent and extended forward to form a fixed arm 203. The fixed arm 203 is further formed with a fixed hole for buckling with a buckling protrusion pre-set on the outer wall of the TYPE-C interface, thereby fixing the TYPE-C terminal assembly main body inserted into the TYPE-C female seat 2 more firmly. The fixed baffle 202 is partially extended downward to form a first lug 204, and the bottom of the inner housing 201 is formed with a limiting protrusion 205 protruding outward. The outer housing 206 is sleeved outside the inner housing 201 and is limited by the limiting protrusion 205. The tail of the outer housing 206 is bent and extended downward to form a second lug 207. The TYPE-C female seat 2 is welded and fixed on the PCB through the first lug 204 and the second lug 207.

[0033] The TYPE-C terminal assembly body includes an upper row of terminal assembly 3 and a lower row of terminal assembly 4. The upper row of terminal assembly 3 includes a plurality of first conductive terminals 301, a first terminal fixed glue core 302, and a first insulating seat 303. The first conductive terminal 301 includes an L-shaped terminal body 306. One end of the terminal body 306 is bent to form a soldering leg 307, and the other end is folded and overlapped to form a contact part 308 with a certain thickness and having upper and lower contact surfaces, so as to better contact the terminals of the TYPE-C line end connector. The first terminal fixed glue core 302 is fixed by insert molding process to fix the position of the first conductive terminal 301, prevent displacement of the terminal during use, and ensure the stability and reliability of the connection. The first terminal fixed glue core 302 is further injection molded with the first insulating seat 303 to strengthen the structural strength of the upper row of terminal assembly 3. The first insulating seat 303 is provided with a positioning hole 304 penetrating the first terminal fixed glue core 302, and a clamping groove 305 is further provided on the outer side wall of the first insulating seat 303 to facilitate subsequent assembly.

[0034] The lower row of terminal assembly 4 is arranged side by side below the upper row of terminal assembly 3. The lower row of terminal assembly 4 includes a plurality of second conductive terminals 401, a second terminal fixed glue core 402, and a second insulating seat 403. The second conductive terminal 401 is injection molded with the second terminal fixed glue core 402 to fix the position of the second conductive terminal 401. The contact part 308 of the second conductive terminal 401 is folded and overlapped. The second terminal fixed glue core 402 is further injection molded with the second insulating seat 403. The second insulating seat 403 is provided with a guide pin 404 matched with the positioning hole 304. The second insulating seat 403 is installed below the first insulating seat 303 through the guide pin 404. The outer side wall of the second insulating seat 403 is provided with a clamping hook 405 matched with the clamping groove 305. When the lower row of terminal assembly 4 is correctly installed below the upper row of terminal assembly 3, the clamping hook 405 can be matched with the clamping groove 305 to fix the relative position between the lower row of terminal assembly 4 and the upper row of terminal assembly 3, realize quick assembly, and form the TYPE-C terminal assembly body.

[0035] Further, as Figure 6As shown, as a preferred embodiment, the upper row of terminal assemblies 3 is covered by a shielding sheet 5 above and the lower row of terminal assemblies 4 is covered by a shielding sheet 5 below. And, a shielding partition 6 is arranged between the upper row of terminal assemblies 3 and the lower row of terminal assemblies 4. The shielding partition 6 reflects and absorbs the electromagnetic interference signals from the outside, preventing them from entering the connector and affecting the accuracy of data transmission. The shielding partition 6 is bent on both sides to form a first elastic contact arm 601 and a second elastic contact arm 602, respectively, to elastically abut against the ground terminals in the first conductive terminals 301 and the ground terminals in the second conductive terminals 401, respectively. By grounding, a reference potential can be provided for signal transmission, reducing noise and interference during signal transmission and ensuring signal integrity.

[0036] As shown in Figure 2 and Figure 3 The metal back cover 7 is made of zinc alloy by pressure casting and covers the rear end of the power connection element and is clamped and fixed with the plastic plug-in connector 1, providing mechanical protection for the power connection element and also serving as a heat sink. The metal back cover 7 is provided with four fixing columns 701 at the bottom, facilitating the installation and fixation of the entire connector on the vehicle-mounted equipment. The two side walls of the metal back shell are symmetrically formed with guide blocks 702 parallel to the plug-in direction. Correspondingly, two guide grooves 106 are formed on the outer side walls of the plastic plug-in connector 1, and the positions of the guide grooves 106 match the positions of the guide blocks 702. The guide blocks 702 and the guide grooves 106 are in sliding fit to ensure the assembly precision between the plastic plug-in connector 1 and the metal back shell. The metal back cover 7 is provided with a plug plate 703 at the front end, and the plug plate 703 is provided with a lock hole 704. Correspondingly, the rear end of the plastic plug-in connector 1 is formed with a plug groove, and an elastic lock piece 107 extending downward is formed above the plug groove and can be buckled with the lock hole 704. When the plug plate 703 is inserted into the plug groove, the elastic lock piece 107 will avoid upward under the action of external force. When the plug plate 703 is completely inserted into the plug groove, the elastic lock piece 107 will be buckled into the lock hole 704 to complete the locking.

[0037] The above-described embodiments only express the implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the invention. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A TYPE-C double-layer board end connector, characterized by, The application relates to a plastic plug-in connector (1) which is provided with a plug-in interface (101) at one end for connecting with a TYPE-C line end connector and is provided with a mounting groove (105) at the other end which is communicated with the plug-in interface (101). The plug-in connector is provided with a TYPE-C female seat (2) which is inserted into the mounting groove (105), and an upper-row terminal assembly (3) and a lower-row terminal assembly (4) which are arranged in parallel on the TYPE-C female seat (2) in an upper-lower mode. The plug-in connector is further provided with a metal back cover (7) which is arranged at the rear end of the electric connection element and is clamped and fixed with the plug-in connector. The TYPE-C female seat (2) comprises an inner shell (201) which is provided with a TYPE-C interface and an outer shell (206) which is sleeved outside the inner shell (201), the inner shell (201) is bent downward at the top surface rear end and is extended to form a fixed baffle (202), the fixed baffle (202) is partially extended downward to form a first connecting pin (204), and the outer shell (206) is partially bent downward to form a second connecting pin (207).

2. The TYPE-C double-layer board end connector according to claim 1, characterized in that: The upper-row terminal assembly (3) comprises a plurality of first conductive terminals (301) and a first terminal fixing glue core (302) which is used for fixing the first conductive terminals (301) arranged at equal intervals through an insert injection molding process, a first insulating seat (303) is formed on the first terminal fixing glue core (302) through secondary injection molding, and a positioning hole (304) penetrating through the first terminal fixing glue core (302) is arranged on the first insulating seat (303).

3. The TYPE-C double-layer board end connector according to claim 1, characterized in that: The lower-row terminal assembly (4) comprises a plurality of second conductive terminals (401) which are equal in number to the first conductive terminals (301), a second terminal fixing glue core (402) which is used for fixing the second conductive terminals (401) arranged at equal intervals through an insert injection molding process, a second insulating seat (403) is formed on the second terminal fixing glue core (402) through secondary injection molding, a guide pin (404) matched with the positioning hole (304) is arranged on the second insulating seat (403), and the second insulating seat (403) is arranged below the first insulating seat (303) through the guide pin (404) and is fixed through a clamping hook (405). The contact portions (308) of the first conductive terminals (301) and the second conductive terminals (401) are all folded and overlapped to increase the thickness of the contact portions (308).

4. The TYPE-C double-layer board end connector according to claim 3, characterized in that: The upper-row terminal assembly (3) is covered by a shielding sheet (5) from above, and the lower-row terminal assembly (4) is covered by the shielding sheet (5) from below.

5. The TYPE-C double-layer board end connector according to claim 1, characterized in that: A shielding partition plate (6) is arranged between the upper-row terminal assembly (3) and the lower-row terminal assembly (4).

6. The TYPE-C double-layer board end connector according to claim 3, characterized in that: First and second elastic contact arms (601) and (602) which are elastically abutted with ground terminals in the first conductive terminals (301) and the second conductive terminals (401) are further formed on both sides of the shielding partition plate (6) through bending.

7. The TYPE-C double-layer board end connector according to claim 6, characterized in that: At least one plug-in guide structure for improving plug-in precision is arranged in the plug-in interface (101).

8. The TYPE-C double-layer board end connector according to claim 1, characterized in that: ​ 9. The TYPE-C double-layer board end connector according to claim 1, characterized in that: The upper wall of the plastic plug-in connector (1) is formed with an elastic locking piece (107) extending downward, and the upper wall of the metal back cover (7) is provided with a locking hole (704) corresponding to the elastic locking piece (107).

10. The TYPE-C double-layer board end connector according to claim 9, characterized in that: The two outer walls of the plastic plug-in connector (1) are symmetrically provided with guide grooves (106), and the two side walls of the metal back shell are formed with guide blocks (702) matched with the positions of the guide grooves (106). The guide blocks (702) and the guide grooves (106) are in sliding fit, so as to ensure the assembly precision between the plastic plug-in connector (1) and the metal back shell.

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