JPH0660969U - Terminal structure - Google Patents

Abstract

(57) [Summary] [Purpose] Perform efficient and reliable connection between external wiring and equipment. [Structure] A board 2 on which an electronic component 1 is mounted, a housing 3 for protecting the board, a terminal fitting 5 fixed to an opening 31 of the housing for connecting the board and an external connection 4, and an external connection as a terminal fitting. A rib 7 having a fixing screw 6 and a cutout 71 for sandwiching an external connection is provided on the surface of the housing. [Effect] Since the rib 7 is provided by cutting the notch 71 for sandwiching the external connection on the surface of the housing, it is not necessary to press the external connection 4, and the coating peeling line portion can be efficiently screwed. Further, even after the fixing, the external force for the external connection is absorbed by the ribs, so that the contact failure due to loosening is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a terminal structure, and more particularly, to improvement of a terminal structure of an electronic device to which an external connection is connected, such as a master unit and a slave unit of an intercom.

[0002]

[Prior art]

 Conventionally, in electronic devices such as a master unit and a slave unit of an intercom, to which external wiring is connected, the following terminal structure has been used to connect a substrate on which electronic components are mounted and the external wiring. As shown in FIGS. 2A and 2B, the conventional terminal structure is fixed to a board 20 on which the electronic component 10 is mounted, a case 30 for protecting the board 20, and an opening 31 of the case 30. The lead wire 90 connected to the terminal fitting 50 and the terminal fitting 50 for connecting the board 20 and the external connection 40 with the solder 91, and the screw 60 and the screw 60 for fixing the external connection 40 to the terminal fitting 50 are fixed. It is composed of a lower screw fitting 80.

When connecting the corresponding pattern of the substrate 20 and the external connection 40, the screw 60 is loosened at the installation site, and the screw lower metal fitting 80 fixed to the screw 60 is removed from the terminal metal fitting 50 fixed to the housing 30. The outer wire 40 is separated, and the coating peeling wire portion 41 of the external wire connection 40 is mounted between the screw lower metal fitting 80 and the terminal metal fitting 50, and the screw 60 is tightened to fix the external wire connection 40. Connect to.

A signal from the external connection 40 reaches the substrate 20 from the terminal metal fitting 50 via the lead wire 90, passes through a corresponding pattern, and causes the electronic component 10 to function.

[0005]

[Problems to be solved by the device]

 Since the conventional terminal structure is configured as described above, in order to fix the external connection 40 between the screw lower metal fitting 80 and the terminal metal fitting 50, the external connection 40 should be held while pressing the equipment with one hand. It is necessary to prevent the robot from moving and tighten the screw 60 with the other hand, which makes it difficult to work and inefficient. Further, even after the fixing, the external connection 40 is easily moved by an external force, which is one of the causes of the contact failure of the external connection 40 fixed to the terminal tool 50.

[0006]

【Purpose】

 The present invention has been made to solve the above problems, and an object thereof is to provide a terminal structure having a structure suitable for external connection and excellent workability.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the terminal structure according to the present invention comprises a board on which electronic components are mounted, a housing for protecting the board, and a terminal metal fitting that is fixed to the opening of the housing and connects the board and external wiring. And a screw for fixing the external connection to the terminal fitting, and a rib provided with a cutout for sandwiching the external connection is provided on the surface of the housing.

[0008]

[Action]

 The terminal structure according to the present invention includes a board on which a protected electronic component is mounted in a housing, a terminal fitting fixed to an opening of the housing for connecting the board and an external wire, and a screw for fixing the external wire to the terminal fitting. And a rib that holds the external connection and prevents movement on the surface of the housing. Since the rib has a notch that reliably holds the external connection, the rib can be efficiently screwed without pressing the external connection on the housing surface. Further, even after the fixing, the rib absorbs the external force to the external connection 40, so that the contact failure due to the loosening is prevented.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. INDUSTRIAL APPLICABILITY The terminal structure according to the present invention is applicable to electronic devices to which external wiring is connected, such as a base unit and a handset of an intercom. As shown in FIGS. 1 (a) and 1 (b), the terminal structure according to the present invention includes a board 2 on which an electronic component 1 is mounted, a housing 3 for protecting the board 2, and an opening 31 of the housing 3. A terminal fitting 5 that is fixed and connects the substrate 2 and the external connection 4; a lead wire 9 that is connected to the terminal fitting 5 with solder 91; a screw 6 that fixes the external connection 4 to the terminal fitting 5; The rib 7 has a notch 71 for sandwiching the external connection 4 on the surface of the housing. The rib 7 may be formed integrally with the housing 3, or may be fixed to the surface of the housing with an adhesive or a screw, and the notch 71 of the rib 7 has a diameter slightly smaller than the diameter of the external connection 4 used. Is preferred.

As shown in FIGS. 1 (b) and 1 (c), when connecting the corresponding pattern of the substrate 2 and the external connection 4, loosen the screw 6 at the installation site, and screw down the screw 6 fixed to the screw 6. The metal fitting 8 is separated from the terminal metal fitting 5 fixed to the housing 3, and first, the external connection 4 is held in the notch 71 of the rib 7 so that the coating peeling wire portion 41 is connected to the screw lower metal fitting 8 and the terminal metal fitting 5. Then, the screw 6 is tightened, the external connection 4 is fixed, and the external connection 4 is connected to the corresponding pattern of the substrate 2.

A signal from the external connection 4 reaches the substrate 2 from the terminal fitting 5 via the lead wire 9 and causes the electronic component 1 to function through a corresponding pattern. The external connection 4 held by the notch 71 is suitable both in the covering portion (FIG. 1C) and in the covering peeling wire portion 41 as long as the size of the notch 71 is appropriate.

[0012]

[Effect of device]

 As is clear from the above embodiments, the terminal structure according to the present invention has a board on which electronic components are mounted, a case for protecting the board, and a board fixed to an opening of the case to connect the board and external wiring. The terminal metal fittings and the screws for fixing the external wiring to the terminal metal fittings are provided, and the ribs with the cutouts for holding the external wiring are cut on the surface of the housing, so there is no need to press the external wiring and the coating can be stripped efficiently The line part can be screwed. Further, even after the fixing, the external force for the external connection is absorbed by the ribs, so that the contact failure due to loosening is prevented.

[Brief description of drawings]

1A, 1B and 1C are views showing an embodiment of a terminal structure according to the present invention.

2A and 2B are diagrams showing a conventional terminal structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic component 2 ... Board 3 ... Housing 4 ... External connection 5 ... Terminal metal fitting 6 ... Screw 7 ... Rib 71 ... Notch

Claims (1)

[Scope of utility model registration request] 1. A substrate (2) on which an electronic component (1) is mounted,
A case (3) for protecting the substrate and an opening (3
A terminal metal fitting (5) fixed to 1) for connecting the substrate and the external wiring (4) and a screw (6) for fixing the external wiring to the terminal metal fitting, and a cutting device for sandwiching the external wiring. A terminal structure characterized in that a rib (7) having a cutout (71) is formed on the surface of the casing.