Connector terminal module and connector

The connector terminal module addresses the inefficiencies and performance issues of existing connector assemblies by employing an integral stamped shield shell design, enhancing assembly efficiency and shielding performance.

JP2025037838APending Publication Date: 2025-03-18TYCO ELECTRONICS TECHNOLOGY (SIP) CO LTD +1
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Patent Information

Application Number
JP2024151313
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-06
Filing Date
2024-09-03
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Existing connector assemblies with shield shells are cumbersome to assemble, offer poor shielding effectiveness, and have a large volume, leading to inefficiencies in manufacturing and performance.

Method used

A connector terminal module featuring a shield shell with a front and rear shell portion, where the front shell is biased relative to the rear shell, forming an integral stamped piece, and a central shell portion connecting them, enhancing assembly efficiency and shielding performance.

Benefits of technology

The solution simplifies assembly, reduces manufacturing costs, and improves shielding effectiveness and signal transmission speed by utilizing an integral pressed shield shell design.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a connector terminal module and a connector, capable of simplifying an assembly, reducing a manufacturing cost, improving an effectiveness and a signal transmission speed of a shield, and reducing an interval between a pair of connector terminal modules.SOLUTION: A connector terminal module comprises: a holding body (2) in which a terminal hole (201); a terminal inserted into the terminal hole (201) of the holding body (2); a cable (4) in which a conductive core of the cable (4) is electrically connected ; and a shield shell. The shield shell contains: a front shell part (11) that is attached to the holding body (2); and a rear shell part (12) that is crimped to one end part of the cable (4). Both of the front shell part (11) and the rear shell part (12) of the shield shell are opposite each other in a long direction of the shield shell, and the shield shell is an integrated press processing component.SELECTED DRAWING: Figure 2
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Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202322420549.3, filed with the China National Intellectual Property Office on September 6, 2023, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a connector terminal module and to a connector comprising a connector terminal module. [Background technology]

[0003] In the prior art, a connector includes a front shield shell, a rear shield shell, and a center shield shell. The front shield shell, the rear shield shell, and the center shield shell are assembled together to form a complete shield shell. Therefore, the assembly of the existing shield shell is not only cumbersome, but also difficult to arrange, which reduces the manufacturing efficiency of the connector. In addition, the assembled shield shell also has the problems of low shielding effect and large volume. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT The present invention is directed to overcoming or alleviating at least one aspect of the above disadvantages. [Means for solving the problem]

[0005] According to an aspect of the present invention, there is provided a connector terminal module. The connector terminal module includes a retainer having terminal holes formed therein, terminals inserted into the terminal holes of the retainer, a cable, the conductor core of the cable being electrically connected to the terminal, and a shield shell. The shield shell includes a front shell portion attached to the retainer and a rear shell portion crimped onto one end of the cable. The front shell portion and the rear shell portion of the shield shell are opposite each other in the longitudinal direction of the shield shell, and the shield shell is an integral stamped piece.

[0006] According to an exemplary embodiment of the present invention, the front shell portion of the shield shell is offset to one side with respect to the rear shell portion of the shield shell, such that the central axis of the front shell portion of the shield shell is spaced a predetermined distance d from the central axis of the rear shell portion of the shield shell.

[0007] According to another exemplary embodiment of the present invention, the shield shell further includes a central shell portion, which is neck-shaped and connected between the front shell portion and the rear shell portion.

[0008] According to another exemplary embodiment of the present invention, a cable includes a core wire, one end of the core wire exposed from the shielding layer of the cable and held in a central shell portion of the shielding shell, and a rear end of a terminal crimped to the exposed conductor core of the core wire.

[0009] According to another exemplary embodiment of the present invention, the connector terminal module further includes a support tube, the support tube is provided in a rear shell portion of the shield shell and fitted onto the exposed shield layer of the cable, a portion of the exposed shield layer is folded back onto the outside of the support tube and pressed between the rear shell portion and the support tube, and a rear end of the rear shell portion is crimped onto the outer insulating layer of the cable.

[0010] According to another exemplary embodiment of the present invention, the cable includes a pair of core wires, the connector terminal module includes a pair of terminals, and the retainer includes a pair of terminal holes arranged side by side in the lateral direction of the retainer, the pair of terminals being respectively inserted into the pair of terminal holes of the retainer and respectively electrically connected to the conductor cores of the pair of core wires.

[0011] According to another exemplary embodiment of the present invention, elastic buckles are formed on the top and bottom walls of the front shell part of the shield shell, respectively, and recesses are formed on the top and bottom surfaces of the retainer, respectively, and the elastic buckles are engaged with the recesses to lock the retainer on the front shell part.

[0012] According to another exemplary embodiment of the present invention, the elastic buckle includes a first elastic buckle and a second elastic buckle spaced apart from each other in the longitudinal direction of the shield shell, and the recess includes a first recess and a second recess engaged with the first elastic buckle and the second elastic buckle, respectively.

[0013] According to another exemplary embodiment of the present invention, the first elastic buckle is disposed in front of the second elastic buckle, and the rear end surface of the first elastic buckle abuts on the first inner surface of the first recess, while the front end surface of the second elastic buckle abuts on the second inner surface of the second recess.

[0014] According to another exemplary embodiment of the present invention, a resilient cantilever is formed on the front shell portion of the shield shell, and the resilient cantilever is used to make electrical contact with a mating shield shell of a mating connector.

[0015] According to another exemplary embodiment of the present invention, the elastic cantilever includes a first elastic cantilever formed on a top wall and a bottom wall, respectively, of the front shell part of the shield shell, and a second elastic cantilever formed on a left wall and a right wall, respectively, of the front shell part of the shield shell.

[0016] According to another exemplary embodiment of the present invention, a first elastic cantilever extends forward from its base and a second elastic cantilever extends rearward from its base, the base of the first elastic cantilever being adjacent to the end of the second elastic cantilever in the longitudinal direction.

[0017] According to another exemplary embodiment of the present invention, the connector terminal module further comprises a locking member, which is mounted on the outside of the shield shell to lock the connector terminal module within the connector housing.

[0018] According to another exemplary embodiment of the present invention, a resilient locking element is formed on an upper wall of the locking member, the resilient locking element being configured to lock to the connector housing to prevent the connector terminal module from being pulled out of the connector housing.

[0019] According to another exemplary embodiment of the present invention, a slot hole is formed in the upper wall of the locking member, and a third elastic buckle is formed in the upper wall of the front shell part of the shielding shell, and the third elastic buckle is engaged with the slot hole to lock the locking member to the shielding shell.

[0020] According to another aspect of the present invention, there is provided a connector comprising: a connector housing having a mounting hole formed therein; and the above-mentioned connector terminal module inserted into the mounting hole.

[0021] According to an exemplary embodiment of the present invention, the front shell portion of the shielded shell is offset to one side with respect to the rear shell portion of the shielded shell, such that the central axis of the front shell portion of the shielded shell is spaced apart from the central axis of the rear shell portion of the shielded shell by a predetermined distance d. The connector housing includes a pair of mounting holes, the connector includes a pair of connector terminal modules, the pair of connector terminal modules are inserted into the pair of mounting holes respectively, and the front shell portions of the shielded shells of the pair of connector terminal modules are offset toward each other, such that the distance between the central axes of the front shell portions of the shielded shells of the pair of connector terminal modules is smaller than the distance between the central axes of the rear shell portions of the shielded shell portions of the pair of connector terminal modules, and the difference between the two distances is equal to twice the predetermined distance.

[0022] In the above exemplary embodiments of the present invention, the shielding shell is a one-piece stamped part, which simplifies assembly of the connector terminal module, reduces manufacturing costs, and also improves shielding effectiveness and signal transmission speed.

[0023] Additionally, in some exemplary embodiments according to this invention, the shield shell may employ an eccentric design to reduce the spacing between a pair of connector terminal modules.

[0024] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0025] [Figure 1] 1 is an illustrative perspective view of a connector terminal module according to an exemplary embodiment of the present invention; [Diagram 2] 1 is a longitudinal cross-sectional view of a connector terminal module according to an exemplary embodiment of the present invention. [Diagram 3] 4 is another longitudinal cross-sectional view of a connector terminal module according to an exemplary embodiment of the present invention. [Figure 4]1 is an illustration of an exploded view of a connector terminal module according to an exemplary embodiment of the present invention. [Diagram 5] 2 is a diagrammatic perspective view of a shield shell of a connector terminal module according to an exemplary embodiment of the present invention; [Figure 6] 2 is a longitudinal cross-sectional view of a shield shell of a connector terminal module according to an exemplary embodiment of the present invention. [Figure 7] 1 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals refer to the same elements. However, the present disclosure may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0027] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are diagrammatically shown in order to simplify the drawings.

[0028] According to a general aspect of the present invention, there is provided a connector terminal module comprising a holder having terminal holes formed therein, terminals inserted into the terminal holes of the holder, a cable, the conductor core of the cable being electrically connected to the terminal, and a shield shell. The shield shell includes a front shell portion attached to the holder and a rear shell portion crimped onto one end of the cable. The front shell portion and the rear shell portion of the shield shell are opposite to each other in the longitudinal direction of the shield shell, and the shield shell is an integral pressed part.

[0029] According to another general aspect of the present invention, there is provided a connector, the connector including a connector housing having a mounting hole formed therein, and the above-described connector terminal module inserted into the mounting hole.

[0030] FIG. 1 is a diagrammatic perspective view of a connector terminal module 100 according to an exemplary embodiment of the present invention. FIG. 2 is a longitudinal cross-sectional view of a connector terminal module 100 according to an exemplary embodiment of the present invention. FIG. 3 is another longitudinal cross-sectional view of a connector terminal module 100 according to an exemplary embodiment of the present invention. FIG. 4 is a diagrammatic exploded view of a connector terminal module 100 according to an exemplary embodiment of the present invention. FIG. 5 is a diagrammatic perspective view of a shield shell 1 of a connector terminal module 100 according to an exemplary embodiment of the present invention. FIG. 6 is a longitudinal cross-sectional view of a shield shell 1 of a connector terminal module 100 according to an exemplary embodiment of the present invention.

[0031] As shown in Figures 1 to 6, in an exemplary embodiment of the present invention, a connector terminal module 100 is disclosed. The connector terminal module 100 includes a shield shell 1, a holding body 2, a terminal 3, and a cable 4. The holding body 2 is made of an insulating material and has a terminal hole 201 formed therein. The terminal 3 is inserted into the terminal hole 201 of the holding body 2. A conductor core 41 of the cable 4 is electrically connected to the terminal 3.

[0032] 1 to 6, in the illustrated embodiment, the shielded shell 1 includes a front shell portion 11 and a rear shell portion 12. The front shell portion 11 of the shielded shell 1 is attached to a holding body 2. The rear shell portion 12 of the shielded shell 1 is crimped to one end of the cable 4. The front shell portion 11 and the rear shell portion 12 of the shielded shell 1 are opposite in the longitudinal direction of the shielded shell 1, and the shielded shell 1 is an integrated press-formed part.

[0033] As shown in Figures 1 to 6, in the illustrated embodiment, the front shell portion 11 of the shielded shell 1 is shifted to one side with respect to the rear shell portion 12 of the shielded shell 1, and therefore, the central axis L1 of the front shell portion 11 of the shielded shell 1 is separated from the central axis L2 of the rear shell portion 12 of the shielded shell 1 by a predetermined distance d.

[0034] As shown in Figures 1 to 6, in the illustrated embodiment, the shield shell 1 further includes a central shell portion 13, which is neck-shaped and connected between the front shell portion 11 and the rear shell portion 12 to provide a smooth transition between the front shell portion 11 and the rear shell portion 12.

[0035] As shown in Figures 1 to 6, in the illustrated embodiment, the cable 4 includes a core wire 40, one end of the core wire 40 is exposed from the shielding layer 42 of the cable 4 and held in the central shell portion 13 of the shielding shell 1, and the rear end of the terminal 3 is crimped to the exposed conductor core 41 of the core wire 40.

[0036] 1 to 6, in the illustrated embodiment, the connector terminal module further includes a support tube 6, which is provided in the rear shell portion 12 of the shield shell 1 and attached to the exposed shield layer 42 of the cable 4. A part of the exposed shield layer 42 of the cable 4 is folded back to the outside of the support tube 6 and pressed between the rear shell portion 12 and the support tube 6, and a rear end portion 12a of the rear shell portion 12 is crimped to an outer insulating layer 43 of the cable 4.

[0037] 1 to 6, in the illustrated embodiment, the cable 4 includes a pair of core wires 40, the connector terminal module 100 includes a pair of terminals 3, and the holder 2 includes a pair of terminal holes 201 arranged side by side in the lateral direction of the holder 2. The pair of terminals 3 are inserted into the pair of terminal holes 201 of the holder 2, respectively, and are electrically connected to the conductor cores 41 of the pair of core wires 40, respectively.

[0038] 1 to 6, in the illustrated embodiment, elastic buckles are formed on the top and bottom walls of the front shell portion 11 of the shield shell 1, and recesses are formed on the top and bottom surfaces of the holder 2. The elastic buckles are engaged with the recesses to lock the holder 2 in the front shell portion 11.

[0039] As shown in Figures 1 to 6, in the illustrated embodiment, the elastic buckle includes a first elastic buckle 111 and a second elastic buckle 112 spaced apart from each other in the longitudinal direction of the shield shell 1, and the recess includes a first recess 21 and a second recess 22 engaged with the first elastic buckle 111 and the second elastic buckle 112, respectively.

[0040] As shown in Figures 1 to 6, in the illustrated embodiment, the first elastic buckle 111 is positioned in front of the second elastic buckle 112, with the rear end surface of the first elastic buckle 111 in contact with the first inner surface 21a of the first recess 21, and the front end surface of the second elastic buckle 112 in contact with the second inner surface 22a of the second recess 22.

[0041] As shown in Figures 1 to 6, in the illustrated embodiment, a resilient cantilever is formed on the front shell portion 11 of the shield shell 1, and the resilient cantilever is used to make electrical contact with a mating shield shell (not shown) of a mating connector (not shown).

[0042] 1 to 6, in the illustrated embodiment, the elastic cantilever includes a first elastic cantilever 11a and a second elastic cantilever 11b. The first elastic cantilever 11a is formed on each of the top wall and the bottom wall of the front shell part 11 of the shield shell 1. The second elastic cantilever 11b is formed on each of the left wall and the right wall of the front shell part 11 of the shield shell 1.

[0043] As shown in Figures 1 to 6, in the illustrated embodiment, the first elastic cantilever 11a extends forward from its base, the second elastic cantilever 11b extends rearward from its base, and the base of the first elastic cantilever 11a is adjacent to the end of the second elastic cantilever 11b in the longitudinal direction.

[0044] As shown in Figures 1 to 6, in the illustrated embodiment, the connector terminal module 100 further includes a locking member 5, which is attached to the outside of the shield shell 1 to lock the connector terminal module 100 within the connector housing 200 (see Figure 7).

[0045] As shown in Figures 1 to 6, in the illustrated embodiment, an elastic locking part 5a is formed on the upper wall of the locking member 5, and the elastic locking part 5a is configured to be locked to the connector housing 200 to prevent the connector terminal module 100 from being pulled out of the connector housing 200.

[0046] 1 to 6, in the illustrated embodiment, a slot hole 5b is formed in an upper wall of the locking member 5, and a third elastic buckle 113 is formed in an upper wall of the front shell part 11 of the shield shell 1. The third elastic buckle 113 is engaged with the slot hole 5b to lock the locking member 5 to the shield shell 1.

[0047] FIG. 7 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the invention.

[0048] 1 to 7, in an exemplary embodiment of the present invention, a connector is also disclosed. The connector includes a connector terminal module 100 and a connector housing 200. A mounting hole 202 is formed in the connector housing 200. The connector terminal module 100 is inserted into the mounting hole 202.

[0049] As shown in FIGS. 1 to 7, in the illustrated embodiment, the front shell part 11 of the shield shell 1 is offset to one side with respect to the rear shell part 12 of the shield shell 1, and thus the central axis L1 of the front shell part 11 of the shield shell 1 is spaced apart from the central axis L2 of the rear shell part 12 of the shield shell 1 by a predetermined distance d. The connector housing 200 includes a pair of mounting holes 202, and the connector includes a pair of connector terminal modules 100, which are inserted into the pair of mounting holes 202, respectively. The front shell parts 11 of the shield shells 1 of the pair of connector terminal modules 100 are offset with respect to each other, and thus the distance D1 between the central axes L1 of the front shell parts 11 of the shield shells 1 of the pair of connector terminal modules 100 is smaller than the distance D2 between the central axes L2 of the rear shell parts 12 of the shield shells 1 of the pair of connector terminal modules 100, and the difference between the two distances is equal to twice the predetermined distance d.

[0050] It should be understood by those skilled in the art that the above embodiments are illustrative and not restrictive. For example, those skilled in the art can make many modifications to the above embodiments without any contradiction in structure or principle, and can freely combine various features described in different embodiments with each other.

[0051] While several exemplary embodiments have been shown and described, it will be understood by those skilled in the art that various changes or modifications can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the following claims and their equivalents.

[0052] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plurality of said elements or steps, unless expressly stated to the contrary. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic can include additional such elements that do not have that characteristic.

Claims

1. 1. A connector terminal module, comprising: A holder (2) having a terminal hole (201) formed therein; A terminal (3) inserted into the terminal hole (201) of the holder (2); A cable (4), the conductor core (41) of the cable (4) being electrically connected to the terminal (3); Shield shell (1) and Equipped with The shield shell (1) is A front shell portion (11) attached to the holder (2); A rear shell part (12) crimped to one end of the cable (4) and Including, The front shell portion (11) and the rear shell portion (12) of the shield shell (1) are opposite to each other in the longitudinal direction of the shield shell (1), and the shield shell (1) is an integral pressed part.

2. 2. The connector terminal module of claim 1, wherein the front shell portion (11) of the shield shell (1) is biased to one side relative to the rear shell portion (12) of the shield shell (1), and therefore the central axis of the front shell portion (11) of the shield shell (1) is spaced a predetermined distance d from the central axis of the rear shell portion (12) of the shield shell (1).

3. 3. The connector terminal module of claim 2, wherein the shield shell (1) further includes a central shell portion (13), the central shell portion (13) being neck-shaped and connected between the front shell portion (11) and the rear shell portion (12).

4. 4. The connector terminal module of claim 3, wherein the cable (4) includes a core wire (40), one end of the core wire (40) is exposed from the shielding layer (42) of the cable (4) and held in the central shell portion (13) of the shielding shell (1), and a rear end of the terminal (3) is crimped to the exposed conductor core (41) of the core wire (40).

5. The cable further includes a support tube (6), the support tube (6) being provided in the rear shell portion (12) of the shield shell (1) and fitted onto the exposed shield layer (42) of the cable (4); 5. The connector terminal module of claim 4, wherein a portion of the exposed shielding layer (42) is folded back onto the outside of the support tube (6) and pressed between the rear shell portion (12) and the support tube (6), and a rear end portion (12a) of the rear shell portion (12) is crimped to an outer insulating layer (43) of the cable (4).

6. The cable (4) includes a pair of core wires (40), the connector terminal module (100) includes a pair of terminals (3), and the retainer (2) includes a pair of terminal holes (201) arranged side by side in the lateral direction of the retainer (2), The connector terminal module of claim 4, wherein the pair of terminals (3) are respectively inserted into the pair of terminal holes (201) of the retaining body (2) and respectively electrically connected to the conductor cores (41) of the pair of core wires (40).

7. 2. The connector terminal module of claim 1, wherein elastic buckles (111, 112) are formed on the top and bottom walls of the front shell portion (11) of the shield shell (1), recesses (21, 22) are formed on the top and bottom surfaces of the retaining body (2), and the elastic buckles (111, 112) are engaged with the recesses (21, 22), respectively, to lock the retaining body (2) in the front shell portion (11).

8. 8. The connector terminal module according to claim 7, wherein the elastic buckles (111, 112) include a first elastic buckle (111) and a second elastic buckle (112) spaced apart from each other in the longitudinal direction of the shield shell (1), and the recesses (21, 22) include a first recess (21) and a second recess (22) engaged with the first elastic buckle (111) and the second elastic buckle (112), respectively.

9. 9. The connector terminal module according to claim 8, wherein the first elastic buckle (111) is disposed in front of the second elastic buckle (112), and a rear end surface of the first elastic buckle (111) contacts a first inner surface (21a) of the first recess (21), while a front end surface of the second elastic buckle (112) contacts a second inner surface (22a) of the second recess (22).

10. 2. The connector terminal module according to claim 1, wherein elastic cantilevers (11a, 11b) are formed on the front shell portion (11) of the shield shell (1), and the elastic cantilevers are used to electrically contact a mating shield shell of a mating connector.

11. The elastic cantilevers (11a, 11b) a first elastic cantilever (11a) formed on an upper wall and a bottom wall of the front shell portion (11) of the shield shell (1); a second elastic cantilever (11b) formed on the left wall and the right wall of the front shell portion (11) of the shield shell (1); The connector terminal module of claim 10 including:

12. 12. The connector terminal module of claim 11, wherein the first elastic cantilever (11a) extends forward from its base and the second elastic cantilever (11b) extends rearward from its base, and the base of the first elastic cantilever (11a) is adjacent to the end of the second elastic cantilever (11b) in the longitudinal direction.

13. 2. The connector terminal module according to claim 1, further comprising a locking member (5), the locking member (5) being attached to the outside of the shield shell (1) to lock the connector terminal module (100) within the connector housing (200).

14. The connector terminal module of claim 13, wherein an elastic locking part (5a) is formed on an upper wall of the locking member (5), and the elastic locking part (5a) is configured to be locked to the connector housing (200) to prevent the connector terminal module (100) from being pulled out of the connector housing (200).

15. 14. The connector terminal module according to claim 13, wherein a slot hole (5b) is formed in an upper wall of the locking member (5), a third elastic buckle (113) is formed in an upper wall of the front shell portion (11) of the shield shell (1), and the third elastic buckle (113) is engaged with the slot hole (5b) to lock the locking member (5) to the shield shell (1).

16. A connector, A connector housing (200) having a mounting hole (202) formed therein; The connector terminal module (100) according to any one of claims 1 to 15, inserted into the mounting hole (202); A connector comprising:

17. The front shell portion (11) of the shielded shell (1) is biased to one side with respect to the rear shell portion (12) of the shielded shell (1), and therefore, the central axis of the front shell portion (11) of the shielded shell (1) is separated from the central axis of the rear shell portion (12) of the shielded shell (1) by a predetermined distance d; The connector housing (200) includes a pair of mounting holes (202), and the connector includes a pair of connector terminal modules (100), the pair of connector terminal modules (100) being inserted into the pair of mounting holes (202), respectively; The connector of claim 16, wherein the front shell portions (11) of the shield shells (1) of the pair of connector terminal modules (100) are offset toward each other, such that the distance between the central axes of the front shell portions (11) of the shield shells (1) of the pair of connector terminal modules (100) is smaller than the distance between the central axes of the rear shell portions (12) of the shield shells (1) of the pair of connector terminal modules (100), and the difference between the two distances is equal to twice the predetermined distance.