JP6581535B2 - connector - Google Patents

Description

  The present invention relates to a connector having a waterproof function.

  For example, Patent Document 1 is an electronic device module having a waterproof function. The electronic device module of Patent Document 1 includes a ground shell 10. The ground shell 10 includes a flat plate portion 83, a contact piece 84 raised from the outer edge of the flat plate portion toward the inside of the device, and a cylindrical contact body 85 that protrudes from the center of the flat plate portion 83. It is. The electronic device module of Patent Document 1 includes the ground shell 10 having the above-described hat shape (the flat plate portion 83 is regarded as a brim of the hat and the contact body 85 as a mountain portion of the hat). Compatible ground connection.

Japanese Patent No. 50659992

  The electronic device module disclosed in Patent Document 1 has a large number of parts and a complicated structure.

  Accordingly, an object of the present invention is to provide a connector that achieves a good shielding characteristic with a simple structure.

  The connector of the present invention includes a signal terminal, a shell, a shield case, and an interposed member.

  The signal terminal includes a leg portion. The shell includes legs. The interposition member is electrically connected to the shield case and the terminal insertion hole through which the leg of the signal terminal is inserted and electrically connected, the shell insertion hole through which the leg of the shell is inserted and electrically connected An internal structure in which the terminal insertion hole and the conductive part are insulated, and the shell insertion hole and the conductive part are electrically connected.

  According to the connector of the present invention, good shield characteristics can be realized with a simple structure.

FIG. 3 is an exploded perspective view of the connector according to the first embodiment. The perspective view of a signal terminal. The perspective view of a shell. A partially enlarged view of the case. The perspective view explaining the assembly of a case, FPC, and a shield case. The perspective view which abbreviate | omits the shield case and represents the back surface of the connector of Example 1. FIG.

  Hereinafter, embodiments of the present invention will be described in detail. In addition, the same number is attached | subjected to the structure part which has the same function, and duplication description is abbreviate | omitted.

  Hereinafter, the connector of Example 1 will be described with reference to FIG. FIG. 1 is an exploded perspective view of the connector 1 of the present embodiment. As shown in FIG. 1, the connector 1 of this embodiment includes a signal terminal 11 made of a conductive material, a shell 12 made of a conductive material and a substantially cylindrical shape, a case 13 made of an insulating material (for example, resin), and an FPC (Flexible). The printed circuit board includes a printed circuit (flexible printed circuit board) 14, a shield case 15 that is a conductive material, and a screw 16.

  The case 13 includes a plate-like base portion 13b and a cylindrical fitting portion 13c that protrudes from the base portion 13b and has a function of fitting with a mating connector.

  The signal terminal 11 and the shell 12 are connected to the surface of the base portion 13b (the surface on which the fitting portion 13c is formed). The FPC 14 and the shield case 15 are connected and fixed to the back surface of the base portion 13b by screws 16 in order from the one close to the base portion 13b. The shield effect can be enhanced by fixing the FPC 14 and the shield case 15 with the screws 16 (details will be described later). The fixing is not limited to the screw 16 but may be a spring or welding.

  Hereinafter, with the base 13b of the case 13 as a boundary, the space on the shell 12 side is referred to as the outside of the device, and the space on the FPC 14 side is referred to as the inside of the device. Using this definition, the direction from the outside to the inside of the device is defined as inward or inward. Similarly, a direction from the inside to the outside of the device is defined as an outward direction or an outward direction. The outer direction may be expressed as a connector connecting direction, and the inner direction may be expressed as a connector pulling direction.

  The FPC 14 is a thin circuit board having a substantially square shape and flexibility. The FPC 14 includes a ribbon-shaped piece 14b in which one vertex is extended in a strip shape. The surface of the FPC 14 is an insulating layer called a cover film or an insulating layer called a resist, and a copper foil layer for shielding, a copper foil layer for signal transmission, and the like are formed below the insulating layer. The FPC 14 is connected to the inner surface (back surface) of the base portion 13b of the case 13 (details will be described later). The FPC 14 is provided with a screw hole 14 a for inserting the screw 16.

  The shield case 15 includes an opening 15b for inserting the signal terminal 11 and the shell 12 at the center thereof. The opening 15b is provided for the purpose of avoiding contact with the tip of the leg of the signal terminal 11. A screw hole 15a for inserting the screw 16 is provided in the vicinity of the opening 15b. Each side of the shield case 15 is bent inward (back side). A camera module (not shown) or the like can be incorporated in the shield case 15. Although the camera module is covered with the shield case 15, the display of the camera module is omitted here, and only a part of the structure is displayed.

  Next, the structure of the signal terminal 11 will be described with reference to FIG. FIG. 2 is a perspective view of the signal terminal 11. As shown in FIG. 2, the signal terminal 11 includes a trunk portion 11a for connecting to the signal terminal of the mating connector, and a leg portion 11b extending inward (connector pulling direction) from the trunk portion 11a. The trunk portion 11a has a substantially cylindrical shape, and a spring 11a1 and a connection hole 11a2 are provided on the side surface thereof for fitting with the mating connector. In this embodiment, the body 11a includes a pair of two springs 11a1 and a connection hole 11a2. The leg portion 11b has a strip-shaped wide portion 11b1 extending inward (connector pulling direction) from the body portion 11a and a strip shape narrower than the wide portion 11b1, and further extends inward (connector) from the wide portion 11b1. It includes a narrow portion 11b2 extended in the drawing direction). In this embodiment, the leg portion 11b includes two sets of a wide portion 11b1 and a narrow portion 11b2.

  Next, the structure of the shell 12 will be described with reference to FIG. FIG. 3 is a perspective view of the shell 12. As shown in FIG. 3, the shell 12 includes a trunk portion 12a for connecting to the shell of the mating connector, and a leg portion 12b extending inward (connector pulling direction) from the trunk portion 12a. The body portion 12a has a substantially cylindrical shape, and a spring 12a1 and a connection hole 12a2 are provided on the side surface thereof for fitting with the mating connector. In this embodiment, the body 12a includes two sets of springs 12a1 and a connection hole 12a2. The leg portion 12b has a strip-shaped wide portion 12b1 extending inward (connector pulling direction) from the body portion 12a and a strip shape narrower than the wide portion 12b1, and further extends inward (connector) from the wide portion 12b1. It includes a narrow portion 12b2 extended in the drawing direction). In this embodiment, the leg portion 12b includes four sets of a wide portion 12b1 and a narrow portion 12b2. A notch 12b5 is formed between the adjacent wide portions 12b1 by cutting out in the outward direction (connector connecting direction). From the end portion of the wide portion 12b1 in the inner direction (connector pulling direction), the convex portion 12b3 extends in the same direction as the narrow portion 12b2. The narrow portion 12b2 is extended from near the center in the width direction of the wide portion 12b1, and the convex portions 12b3 are provided one by one on the left and right sides of the narrow portion 12b2 so as to sandwich the narrow portion 12b2. The length of the convex portion 12b3 is shorter than the length of the narrow portion 12b2. A groove 12b4 is provided in the middle of the end face of the wide portion 12b1.

  Next, with reference to FIG. 4, the structure inside the fitting part 13c of the case 13 will be described. FIG. 4 is a partially enlarged view of the case 13. As shown in FIG. 4, the inner side of the fitting portion 13 c has an arc shape and is provided in the circumferential groove 13 d that does not penetrate from the front surface of the case 13 to the rear surface, and in the circumferential groove 13 d, and from the front surface to the rear surface of the case 13. A through hole 13e penetrating through the central portion of the fitting portion 13c, a central groove 13f that does not penetrate from the front surface of the case 13 to the back surface, and a central groove 13f that passes through the front surface of the case 13 from the back surface to the back surface. A through hole 13g and a circular recess 13h are formed. In the present embodiment, the four circumferential grooves 13d are arranged on the same circumference so as to surround the central portion. Four circumferential grooves 13d and a central groove 13f are provided in the recess 13h. In the present embodiment, two central grooves 13f are provided.

  The wide portion 11b1 of the signal terminal 11 is accommodated in the central groove 13f. The narrow portion 11 b 2 of the signal terminal 11 is inserted into the through hole 13 g, and its tip protrudes from the back surface of the case 13.

  The wide portion 12b1 and the convex portion 12b3 of the shell 12 are accommodated in the circumferential groove 13d. The narrow portion 12b2 of the shell 12 is inserted into the through hole 13e, and the tip thereof protrudes from the back surface of the case 13.

  Next, resin filling (potting) for ensuring waterproof performance will be described. The resin is poured into the recess 13h. At this time, the notch 12b5 of the shell 12 is cut to the same height as the edge (edge) of the recess 13h or higher than the height of the edge (edge) of the recess 13h. By flowing into the shell 12 or flowing out of the shell 12 through the notch 12b5, the entire recess 13h, the circumferential groove 13d, and the central groove 13f are distributed. Thereby, a slight gap between the narrow portion 11b2 of the signal terminal 11 and the through hole 13g and a slight gap between the narrow portion 12b2 of the shell 12 and the through hole 13e are well sealed with the resin.

  Hereinafter, the assembly of the case 13, the FPC 14, and the shield case 15 will be described with reference to FIG. FIG. 5 is a perspective view for explaining assembly of the case 13, the FPC 14, and the shield case 15. As shown in FIG. 5, the FPC 14 is positioned on the front surface side (connector connection direction side) of the shield case 15, but the ribbon-shaped piece 14 b is inserted through the opening 15 b and the back surface side (connector) of the shield case 15. Located in the pulling direction side). A claw 15c is formed around the screw hole 15a of the shield case 15 so as to protrude from the surface side of the shield case 15 (connector connection direction side). The nail | claw 15c is formed in order to ensure the contact with the conduction | electrical_connection part 14e of FPC14 mentioned later.

  The tip of the narrow portion 11 b 2 of the signal terminal 11 and the tip of the narrow portion 12 b 2 of the shell 12 protrude from the back surface of the case 13. The tip of the narrow portion 11b2 is inserted into the terminal insertion hole 14c of the FPC 14 and penetrates to the back side of the FPC 14, and the tip is soldered and electrically connected. Similarly, the tip of the narrow portion 12b2 of the shell 12 is inserted into the shell insertion hole 14d of the FPC 14 and penetrates to the back side of the FPC 14, and the tip is soldered and electrically connected. The screw 16 is inserted through the screw hole 14 a, the screw hole 15 a, and the screw hole 13 a, and fixes the FPC 14 and the shield case 15 to the case 13.

  Hereinafter, the conduction between the FPC 14 and the shield case 15 will be described with reference to FIG. FIG. 6 is a perspective view showing the back surface of the connector 1 of this embodiment with the shield case 15 omitted. As shown in FIG. 6, a conducting portion 14 e is provided around the screw hole 14 a of the FPC 14. The conductive portion 14e can be formed, for example, by peeling the cover film layer (or resist layer) of the FPC 14 and exposing the shield layer. When the conductive film 14e is generated by peeling the cover film layer (or the resist layer), the conductive film 14e is generated at a position that is recessed from the entire back surface of the FPC 14 (in the connector connection direction). If the claw 15c is formed so as to protrude in a direction facing the conducting portion 14e in consideration of the dent, the conducting portion 14e and the claw 15c can be reliably brought into contact with each other, and the FPC 14 and the shield case 15 can be securely attached. Can be electrically connected.

  As described above, the narrow portion 12b2 of the shell 12 is electrically connected by being inserted into the shell insertion hole 14d and soldered. The shell insertion hole 14d and the conduction portion 14e are electrically connected via a shield layer. Therefore, since an electrical path between the shell 12 and the shield case 15 is secured, a stable shielding effect can be realized.

  On the other hand, the narrow portion 11b2 of the signal terminal 11 is electrically connected by being inserted into the terminal insertion hole 14c and soldered. However, the terminal insertion hole 14c is insulated from the conduction portion 14e. For example, the terminal insertion hole 14c is connected to a conductor layer (for example, a signal circuit conductor layer) different from the shield layer, but is insulated from the shield layer, whereby the signal terminal 11-shield case 15 No electrical path is formed between them.

  That is, the FPC 14 has an internal structure in which the terminal insertion hole 14c and the conduction portion 14e are insulated, and an internal structure in which the shell insertion hole 14d and the conduction portion 14e are conducted.

  The above-described FPC 14 can be replaced by any other interposed member. As described above, the interposition member needs to have an internal structure in which the terminal insertion hole 14c and the conduction portion 14e are insulated and an internal structure in which the shell insertion hole 14d and the conduction portion 14e are conducted. Therefore, for example, a printed circuit board or the like in which a circuit structure can be configured may be employed as the interposed member.

  Since the connector 1 of the present embodiment includes the FPC 14 as described above, signal transmission and securing of shielding performance can be realized with a single component. As a result, good shielding characteristics were realized with a simple structure.

DESCRIPTION OF SYMBOLS 1 Connector 1a Connector 11 Signal terminal 11a Body part 11a1 Spring 11a2 Connection hole 11b Leg part 11b1 Wide part 11b2 Narrow part 12 Shell 12a Body part 12a1 Spring 12a2 Connection hole 12b Leg part 12b1 Wide part 12b2 Narrow part 12b3 Convex part 12b4 Groove 12b5 Notch 13 Case 13a Screw hole 13b Base portion 13c Fitting portion 13d Circumferential groove 13e Through hole 13f Central groove 13g Through hole 13h Depression 14 FPC
14a Screw hole 14b Ribbon-shaped piece 14c Terminal insertion hole 14d Shell insertion hole 14e Conducting portion 15 Shield case 15a Screw hole 15b Opening portion 15c Claw 16 Screw

Claims (1)

A signal terminal with legs,
A shell with legs,
A shield case,
A terminal insertion hole through which the leg portion of the signal terminal is inserted and electrically connected, a shell insertion hole through which the leg portion of the shell is inserted and electrically connected, and the shield case are electrically connected. Including an interposition member having an internal structure in which the terminal insertion hole and the conduction portion are insulated, and having an internal structure in which the shell insertion hole and the conduction portion are conducted,
The leg portion of the signal terminal and the leg portion of the shell penetrate from one side of the interposed member to the other side,
The shield case is located on the other side of the interposition member;
The connector in which the shield case is provided with an opening at a position where contact with the leg portion of the signal terminal can be avoided.

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