JPH0619280U - Surface mount connector - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a surface mount connector with a lock mechanism that is mechanically simple and functionally excellent. In a surface mount connector in which connector terminals are fused and connected to a pattern on the surface of a substrate, lock and hold down members 1 are provided at predetermined positions on both ends of the connector. The lock / holddown member includes a holddown section having a holddown function and a lock section serving as a lock function section. A ground signal flows from the shell to a pad on the substrate by electrically connecting a predetermined portion of the lock / hold down member and a predetermined portion 41 of the shell 4 and bringing the mating shield member into contact with the shell 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a surface mount connector, and more particularly to a surface mount type connector in which connector terminals are fused and connected to a pattern on the surface of a board, and in particular, electrical connection between a shield part of the connector and board wiring through a fixing mechanism member. The present invention relates to a surface-mounted connector which has a lock mechanism for electrical continuity and for preventing the connector from coming off.

[0002]

[Prior art]

 As a conventional surface mount connector, in order to establish ground continuity from the mating shield member to the wiring pattern on the board, the connector shown in FIGS. 5 (A), (B), (C) and FIGS. 6 (A), (B) is used. ), The shell 4 is kept in contact with the hook lug 5 with the screw 8 via the connector mounting panel 7. Then, as shown in detail in FIGS. 7A and 7B, the hook lug 5 is brought into contact with the contact portion 6a of the holddown 6, and the bottom portion of the holddown 6 and the board wiring pattern (not shown) are fused. I was letting it. Further, the hook lug 5 having the lock portion is manufactured by casting and has a structure portion to which a hook pin or a screw for locking the through hole substrate can be attached. 8 is a perspective view showing the hook lug 5 and FIG. 9 is a perspective view showing the hold down 6.

[0003]

[Problems to be solved by the device]

 By the way, the electrical continuity between the conventional connector shield member and the board wiring pattern as described above requires each member such as the shell 4, the connector mounting panel 7, the screw 8, the hook lug 5, and the holddown 6. If such many members are used, the reliability of mutual contact is inevitably lacking.

Further, since the hook lug 5 having the lock portion is attached with a structure for holding a hook pin or a screw, which is rarely required as a surface mount component, its outer shape is inevitably large. Therefore, the hook lug 5 increases the outer shape and weight of the connector.

The present invention has been proposed in view of the above problems of the prior art, and eliminates the above-mentioned conventional drawbacks such that the outer shape and weight of the connector must be large, and is mechanically simple and yet It is an object of the present invention to provide a surface mount connector with a lock mechanism that is functionally superior.

[0006]

[Means for Solving the Problems]

 The present invention provides a surface mount connector in which connector terminals are fused and connected to a pattern on the surface of a board, and a lock / hold down member having a lock function and a hold down function is provided at a predetermined position of the connector, and It is characterized in that the lock / hold down member and the shell are electrically connected at a predetermined portion.

[0007]

[Action]

 When the mating shield member comes into contact with the shell, ground conduction begins, and the ground signal is sent from the shell to the lock holddown member and to the pad of the board connected to the holddown part of the lock holddown member. A signal will flow.

[0008]

【Example】

 Next, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 (A) is a front view showing the periphery of the surface mount connector of the present invention, FIG. 1 (B) is a side view thereof, FIG. 1 (C) is a partial plan view, and FIG. 1 (D) is Partial bottom view, FIG. 1 (E) is a partial bottom view in a state of being attached to a substrate, FIG. 2 (A) is a sectional view taken along the line AA in FIG. 1 (D), and FIG. 2 (B) is FIG. 1 (D). 2B is a sectional view taken along the line BB, FIG. 2C is a sectional view taken along the line CC of FIG. 2B, FIG. 3A is a plan view showing the main part of the present invention, and FIG. 3 (A) is an enlarged view of part D, FIG. 4 is an explanatory view showing an example of a component (a member having a lock function and a hold-down function) used in the present invention, and FIG. 4 (A) is a perspective view. (B) is a plan view, (C) is a side view, (D) is a sectional view taken along line EE in (B), (E) is a front view, and (F) is a sectional view taken along line FF in (B). It is a figure.

A feature of the present invention is that one member (hereinafter, referred to as a lock / holddown member) has both a lock function and a holddown function.

As shown in FIG. 4, the lock / hold down member 1 has a hold down portion 11 on the base side and a lock portion 13 on the upper side. The hold-down portion 11 is formed by bending a back surface portion 11a, side wall portions 11b vertically bent from both ends of the back surface portion 11a, and side wall portions 11b so as to be parallel to the back surface portion 11a. It is composed of a front portion 11c. The lock portion 13 extends from the upper end of the back surface portion 11a of the hold-down portion 11, and has a hook-shaped locking portion 13a at the upper end.

Next, the assembling of the lock and hold down member 1 into the insulator will be described.

As shown in FIG. 1, FIG. 2 and FIG. 3, the lock and hold down member 1 is provided with a back face portion of the hold down portion 11 at both ends of the insulator 2 in the longitudinal direction (row direction of the contacts 3). 11a is attached so as to contact the side wall of the insulator 2. The hold-down portion 11 of the lock / hold-down member 1 is fused and fixed to the pad 19 on the substrate 9.

In the state where the lock / hold down member 1 is attached to the insulator 2, the lock portion 13 is positioned in parallel with the side surface side of the shell 4 so as to be spaced apart from it, and the locking portion 13 a faces outward. ing.

Then, as shown in FIG. 3, the lock portion 13 of the lock and hold down member 1 is in conductive contact with the protrusion 41 a formed on the extended flat plate portion 41 of the shell 4. Therefore, when the shield member on the other side and the shell 4 come into contact with each other, conduction of the ground starts, and a ground signal flows to the lock / holddown member 1. Then, a ground signal will flow from the shell 4 to the pad 19 of the substrate 9 connected to the holddown section 11 of the lock holddown member 1 (see FIG. 1).

Reference numeral 20 in the figure denotes a contact pad.

[0017]

[Effect of device]

 As described above, according to the present invention, the lock and holddown member, which is conventionally configured as a separate body and which has the hook member and the holddown member that are independent of each other, is integrated, and the insulator and the shell are structured. Since the shell and the lock and hold down member are electrically connected to each other, the conductive path to the mating connector can be simplified and the number of parts can be reduced. As a result, the structure of the entire connector can be simplified, and the outer shape of the connector can be reduced in size and weight.

[Brief description of drawings]

FIG. 1A is a front view of a surface mount connector of the present invention.
FIG. 3B is a side view of the surface mount connector of the present invention. (C) is a partial plan view of the surface mount connector of the present invention. (D) is a partial bottom view of the surface mount connector of the present invention. FIG. 3E is a partial bottom cross-sectional view of the surface mount connector of the present invention attached to a substrate.

2A is a cross-sectional view taken along the line AA in FIG.
FIG. 1B is a sectional view taken along line BB in FIG. 2C is a cross-sectional view taken along the line CC of FIG.

FIG. 3A is a plan view showing a main part of the present invention. FIG. 3B is an enlarged view of part D in FIG.

FIG. 4 is an explanatory view showing an example of a component (a member having a lock function and a hold-down function) used in the present invention,
(A) is a perspective view. (B) is a plan view. (C) is a side view.
(D) is a sectional view taken along line EE in (B). (E) is a front view. (F) is the FF line sectional view in (B).

FIG. 5 is an explanatory view showing a conventional surface mount connector, and (A) is a front view. (B) is a side view. (C) is a bottom view.

FIG. 6 is an explanatory view showing a conventional surface mount connector, and FIG. 6A is a rear cross-sectional view showing the periphery of the main part. FIG. 3B is a plan sectional view showing the periphery of the main part.

FIG. 7 is an explanatory view showing a conventional surface mount connector, and FIG. 7 (A) is an enlarged back cross-sectional view showing the periphery of the main part. FIG. 3B is a partially enlarged plan view showing the periphery of the main part.

FIG. 8 is a perspective view showing a hook lug used in a conventional surface mount connector.

FIG. 9 is a perspective view showing a holddown used in a conventional surface mount connector.

[Explanation of symbols]

1 Lock / Holddown Member 2 Insulator 3 Contact 4 Shell 9 Board 11 Holddown Part of Lock / Holddown Member 13 Lock Part of Lock / Holddown Member 19 Pad 20 Pad

Claims (1)

[Scope of utility model registration request] 1. A surface mount connector for connecting connector terminals by fusing them to a pattern on the surface of a substrate, wherein a lock / hold down member having a lock function and a hold down function is provided at a predetermined position of the connector. And a surface mount connector in which a predetermined portion of the lock and hold down member and a predetermined portion of the shell are electrically connected.