Electric connector and connector assembly

Abstract

The utility model discloses an electric connector and a connector assembly, belonging to the electric connector field, the electric connector comprises a metal housing, a circuit board and a locking fastener, the circuit board is arranged in the metal housing, the locking fastener is arranged outside the metal housing, the circuit board is provided with a grounding end, and the grounding end is electrically connected with the metal housing. According to the electric connector and the connector assembly, through the arrangement of the metal shell and the combination of the arrangement of the grounding end of the circuit board which is directly and electrically connected with the metal shell, the electric connector and the connector assembly have good shielding performance, can form a closed electromagnetic shielding body, effectively block and weaken the interference of external electromagnetic waves to the interior of the electric connector, and meanwhile, can effectively prevent the electromagnetic waves from entering the electric connector. And electromagnetic waves generated in the electric connector can be prevented from leaking outwards, so that the risk of EMI leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electric connector especially relates to an electric connector and connector assembly. BACKGROUND

[0002] In prior art, the connector assembly mainly includes electric connector and the butt joint connector matched with the electric connector, the electric connector can be cable connector or board end connector, the cable connector mainly includes insulating shell, circuit board and cable etc., the insulating shell is provided with lock catch;The board end connector mainly includes insulating main body, conductive terminal group and metal shell covered outside the insulating main body etc.

[0003] The shell of the existing electric connector is plastic injection molding part, and the wire is wrapped by acetic acid cloth and braided mesh tube. This way has EMI leakage problem in signal transmission process. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an electric connector and connector assembly to overcome at least one of the above-mentioned defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an electric connector, which comprises a metal shell, a circuit board and a lock catch, the circuit board is arranged in the metal shell, the lock catch is arranged outside the metal shell, the circuit board has a grounding end, and the grounding end is electrically connected with the metal shell.

[0007] Preferably, the metal shell comprises a base body and a tail cover, one end of the base body is provided with the tail cover, and the grounding end is connected with or abuts against the tail cover.

[0008] Preferably, the tail cover has a first clamping groove, and the grounding end is matched with the first clamping groove.

[0009] Preferably, the middle part of the grounding end has a second clamping groove, the first clamping groove has a first clamping block, and the first clamping block is matched with the second clamping groove.

[0010] Preferably, the tail cover has a second clamping block, and the base body has a third clamping groove matched with the second clamping block.

[0011] Preferably, the utility model further comprises a bolt, the base body has a threaded groove, the tail cover has a through hole, the bolt passes through the through hole and is inserted into the threaded groove.

[0012] Preferably, the utility model further comprises a metal spring piece, the metal spring piece comprises a mounting part and a deformation part bent upward from the mounting part, the mounting part is mounted outside the metal shell, the top surface of the deformation part protrudes from the top surface of the metal shell, and the deformation part is used for abutting against the metal shell of the butt joint connector when the butt joint connector is butt jointed.

[0013] Preferably, a wire is further included, one end of the wire is located in the metal shell and is electrically connected with the circuit board, and the other end of the wire extends out of the metal shell.

[0014] Preferably, a conductive tape is further included, the conductive tape wraps the wire and part of the metal shell.

[0015] Preferably, an inner mold is further included, the inner mold is located in the metal shell and wraps at least the electrical connection between the circuit board and the wire.

[0016] Preferably, the metal shell has an extension, and the inner mold wraps the extension.

[0017] Preferably, one end of the base has an anti-inclination part extending towards a side away from the tail cover, and one end of the circuit board passes through the base and is located in the anti-inclination part.

[0018] The utility model further provides a connector assembly, including above-mentioned electric connector, and butt joint connector with electric connector.

[0019] Preferably, the butt joint connector has a metal shell, and the metal shell is in contact with the metal shell.

[0020] The utility model has the advantages of:

[0021] 1. The metal shell is provided, and the ground end of the circuit board directly connected with the metal shell is provided, so that the shielding performance is good, a closed electromagnetic shielding body is formed, the interference of external electromagnetic waves on the inside of the electric connector is effectively blocked and weakened, the electromagnetic waves generated in the electric connector are prevented from leaking outward, and the risk of EMI leakage is reduced.

[0022] 2. The ground end is stably connected with the tail cover through the cooperation of the ground end and the first clamping groove, and effective shielding is ensured.

[0023] 3. The connection stability of the ground end and the tail cover is further improved through the cooperation of the first clamping block and the second clamping groove, and the shielding stability is ensured.

[0024] 4. The tail cover and the base are quickly assembled and detachably connected through the cooperation of the second clamping block and the third clamping groove.

[0025] 5. The tail cover is fixed to the rear end of the base through the cooperation of the second clamping block and the third clamping groove, and the connection is stable, so that good shielding effect is ensured.

[0026] 6. The metal shell of the butt joint connector is tightly abutted through the setting of the deformation part after butt joint, the connection stability after butt joint with the butt joint connector is ensured, the conduction between the metal shell and the metal shell is ensured, the ground end in conduction with the metal shell is combined, and the anti-EMI leakage effect of the connector assembly is realized.

[0027] 7. The wire and part of the metal shell are wrapped in the setting mode through the conductive adhesive tape, the electromagnetic shielding effect is enhanced, and the EMI leakage is prevented.

[0028] 8. The stable connection among the metal shell, the circuit board and the wire is realized through the cooperation of the extension part and the outer mode, and the stable conduction between the grounding end and the metal shell is further improved.

[0029] 9. The anti-inclination insertion part is arranged, the anti-inclination insertion effect is achieved, the anti-inclination insertion part is part of the metal shell, the metal shell of the anti-inclination insertion part can be contacted with the metal shell of the mating connector when the mating connector is mated, and the conduction of the metal shell and the metal shell is realized.

[0030] 10. The EMI leakage problem of the whole connector assembly in the signal transmission process is solved through the contact between the metal shell and the metal shell during the mating, the conduction of the grounding end and the metal shell, the metal elastic sheet and the conductive adhesive tape. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment one of the utility model.

[0032] Figure 2 It is a schematic diagram of the three-dimensional explosion structure of the embodiment one of the utility model.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the circuit board of the embodiment one of the utility model.

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the tail cover of the embodiment one of the utility model.

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the base body and the anti-inclination insertion part of the embodiment one of the utility model.

[0036] Figure 6 It is a schematic diagram of the three-dimensional structure of the metal elastic sheet of the embodiment one of the utility model.

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the embodiment two of the utility model.

[0038] Figure 8 It is a schematic diagram of the three-dimensional explosion structure of the embodiment two of the utility model.

[0039] The markings in the attached diagram are as follows: 1-locking component, 2-circuit board, 3-metal shell, 21-grounding terminal, 31-base, 32-tail cap, 321-first slot, 211-second slot, 322-first block, 323-second block, 311-third slot, 4-bolt, 312-threaded groove, 324-through hole, 5-metal spring, 6-mounting part, 7-deformation part, 8-wire, 9-conductive tape, 10-inner mold, 325-extension part, 33-anti-misalignment insertion part, 11-connector, 111-metal shell. Detailed Implementation

[0040] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0041] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Example 1:

[0043] like Figures 1 to 6 As shown, this embodiment provides an electrical connector, which is a cable connector, including a metal housing 3, a circuit board 2, a locking member 1, and a wire 8. The circuit board 2 is disposed inside the metal housing 3, and the locking member 1 is disposed outside the metal housing 3. The circuit board 2 has a grounding terminal 21, which is electrically connected to the metal housing 3. One end of the wire 8 is located inside the metal housing 3 and electrically connected to the circuit board 2, while the other end of the wire 8 extends out of the metal housing 3. Through the arrangement of the metal housing 3 and the grounding terminal 21 of the circuit board 2 directly connected to it, good shielding performance is achieved, forming a closed electromagnetic shield that effectively blocks and weakens external electromagnetic waves from interfering with the internal components of the electrical connector. Simultaneously, it prevents electromagnetic waves generated inside the electrical connector from leaking outward, thereby reducing the risk of EMI leakage. In this embodiment, the metal housing 111 is made of die-cast zinc alloy.

[0044] The metal shell 3 comprises a base body 31 and a tail cover 32, the tail cover 32 is arranged at the rear end of the base body 31, and the grounding end 21 is abutted with the tail cover 32. In other embodiments, the grounding end 21 can be connected with the tail cover 32. The tail cover 32 has a first clamping groove 321, and the grounding end 21 is matched with the first clamping groove 321. By matching the grounding end 21 with the first clamping groove 321, the stable connection of the grounding end 21 and the tail cover 32 is realized, and the effective shielding is ensured.

[0045] The middle part of the grounding end 21 has a second clamping groove 211, the first clamping groove 321 has a first clamping block 322, and the first clamping block 322 is matched with the second clamping groove 211. By matching the first clamping block 322 with the second clamping groove 211, the connection stability of the grounding end 21 and the tail cover 32 is further improved, and the shielding stability is ensured.

[0046] The tail cover 32 has a second clamping block 323, and the base body 31 has a third clamping groove 311 matched with the second clamping block 323. By matching the second clamping block 323 with the third clamping groove 311, the quick assembly and detachable connection of the tail cover 32 and the base body 31 are realized.

[0047] The base body 31 has a threaded groove 312, the tail cover 32 has a through hole 324, the bolt 4 passes through the through hole 324 and is inserted into the threaded groove 312. By locking the tail cover 32 through the bolt 4, in combination with the matching of the second clamping block 323 and the third clamping groove 311, the tail cover 32 is fixed to the rear end of the base body 31, and the connection is stable, which ensures good shielding effect.

[0048] The metal spring 5 comprises a mounting portion 6 and a deformation portion 7 bent upward from the mounting portion 6. The deformation portion 7 of the embodiment has three portions. The mounting portion 6 is mounted outside the metal shell 3, the top surface of the deformation portion 7 protrudes from the top surface of the metal shell 3, and the deformation portion 7 is used to abut against the metal shell 111 of the mating connector 11 when the mating. After mating, the deformation portion 7 can be tightly abutted against the metal shell 111 of the mating connector 11, which not only ensures the connection stability after the mating with the mating connector 11, but also ensures the conduction between the metal shell 111 and the metal shell 3, in combination with the grounding end 21 in conduction with the metal shell 3, the EMI leakage prevention effect of the connector assembly is realized.

[0049] The conductive adhesive tape 9 wraps the wire 8 and part of the metal shell 3. By wrapping the wire 8 and part of the metal shell 3 with the conductive adhesive tape 9, the electromagnetic shielding effect is enhanced, which has a significant effect in preventing EMI leakage.

[0050] The inner mold 10 is arranged in the metal shell 3 and at least wraps the electric connection between the circuit board 2 and the wire 8.

[0051] The extension 325 is arranged in the inner wall of the tail cover 32, and the stable connection among the metal shell 3, the circuit board 2 and the wire 8 is realized through the cooperation between the extension 325 and the outer mold, thereby improving the stable conduction between the grounding end 21 and the metal shell 3.

[0052] The front end of the base 31 has a front-side extending anti-inclination part 33, and the front end of the circuit board 2 passes through the base 31 and is arranged in the anti-inclination part 33. The anti-inclination part 33 not only plays an anti-inclination role, but also, as a part of the metal shell 3, can contact the metal shell 111 of the mating connector 11 when the connector is mated with the mating connector 11, thereby realizing the conduction between the metal shell 111 and the metal shell 3.

[0053] Embodiment one:

[0054] As shown in Figures 7 to 8 The connector assembly comprises the electric connector of embodiment one and the mating connector 11 which is mated with the electric connector. The mating connector 11 has a metal shell 111, and the metal shell 3 contacts the metal shell 111. Through the contact between the metal shell 3 and the metal shell 111 during mating, in combination with the conduction between the grounding end 21 and the metal shell 3, the metal spring 5 and the conductive adhesive tape 9, the EMI leakage problem of the entire connector assembly in the signal transmission process is solved.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. The modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical connector, characterized in that: comprising a metal shell (3), a circuit board (2), and a locking member (1); the circuit board (2) is arranged in the metal shell (3), and the locking member (1) is arranged outside the metal shell (3); the circuit board (2) has a grounding end (21) electrically connected with the metal shell (3).

2. The electrical connector according to claim 1, characterized in that: the metal shell (3) comprises a base body (31) and a tail cover (32); one end of the base body (31) is provided with the tail cover (32); the grounding end (21) is connected with or abuts against the tail cover (32).

3. The electrical connector according to claim 2, characterized in that: the tail cover (32) has a first clamping groove (321), and the grounding end (21) is matched with the first clamping groove (321).

4. The electrical connector according to claim 3, characterized in that: a middle part of the grounding end (21) has a second clamping groove (211); the first clamping groove (321) has a first clamping block (322) therein; and the first clamping block (322) is matched with the second clamping groove (211).

5. The electrical connector according to claim 2, characterized in that: the tail cover (32) has a second clamping block (323), and the base body (31) has a third clamping groove (311) matched with the second clamping block (323).

6. The electrical connector according to claim 2, characterized in that: further comprising a bolt (4); the base body (31) has a threaded groove (312), and the tail cover (32) has a through hole (324); the bolt (4) passes through the through hole (324) and is inserted into the threaded groove (312).

7. The electrical connector according to claim 1, characterized in that: further comprising a metal spring plate (5); the metal spring plate (5) comprises a mounting portion (6) and a deformation portion (7) bent upward from the mounting portion (6); the mounting portion (6) is mounted outside the metal shell (3); and a top surface of the deformation portion (7) protrudes from a top surface of the metal shell (3), and the deformation portion (7) is used to abut against a metal shell (111) of a mating connector (11) when the electrical connector mates with the mating connector (11).

8. The electrical connector according to claim 1, characterized in that: further comprising a wire (8); one end of the wire (8) is located in the metal shell (3) and electrically connected with the circuit board (2), and the other end of the wire (8) extends out of the metal shell (3).

9. The electrical connector according to claim 8, characterized in that: further comprising a conductive adhesive tape (9); and the conductive adhesive tape (9) wraps the wire (8) and part of the metal shell (3) inside.

10. The electrical connector according to claim 8, characterized in that: further comprising an inner mold (10); and the metal shell (3) has the inner mold (10) therein, and the inner mold (10) at least wraps an electrical connection between the circuit board (2) and the wire (8) inside. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 11. The electrical connector of claim 10, wherein: the metal shell (3) has an extension (325) inside, and the inner mold (10) wraps the extension (325) inside.

12. The electrical connector of claim 2, wherein: one end of the base (31) has an anti-inclination part (33) extending towards a side away from the tail cover (32); one end of the circuit board (2) passes through the base (31) and is located inside the anti-inclination part (33).

13. A connector assembly, comprising: the electrical connector of any one of claims 1-12, and a mating connector (11) mating with the electrical connector.

14. The connector assembly of claim 13, wherein: the mating connector (11) has a metal shell (111); the metal shell (3) is in contact with the metal shell (111).

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