JPH0615280U - Mounting structure for circuit device having connector - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a mounting structure that does not require extra space when mounting a circuit device having a connector. [Structure] In order to attach the circuit device 10 having the connectors 12 and 13 to the side wall of the chassis 20, notches 26 and 27 into which the connector can be fitted are formed at the edges of the side wall. Further, claws 28 and 29 for pressing the case are provided on the edge of the side wall corresponding to the upper part of the case of the circuit device when the connector is fitted in the notch.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a circuit device mounting structure in which a connector for external connection is provided so as to protrude outside the case.

[0002]

[Prior art]

 When this type of circuit device is mounted on a chassis or housing for mounting a printed circuit board, for example, it may be required to install the connector so that the connector projects outward from the side wall of the chassis or housing. 2 and 3 show typical examples of such a mounting structure, which will be briefly described below.

The circuit device 10 is, for example, a device such as a modulator or a converter attached to an AV device, etc., in which necessary circuit components are housed in a case 11, and connectors 12 and 13 for signal input / output are provided. It is mounted on the same surface of the case 11 so as to project outward. Male threads are cut at the bases of the connectors 12 and 13. The chassis 20 has a box shape for accommodating a printed circuit board 30 (FIG. 3) on which a circuit device that constitutes a VTR or the like is mounted, and the circuit device 10 is attached to the inside thereof by utilizing one side wall. Since it is necessary to project the connectors 12 and 13 out of the chassis 20, holes 22 and 23 for inserting the connectors 12 and 13 are provided in one side wall of the chassis 20.

The circuit device 10 is mounted by inserting the connectors 12 and 13 into the holes 22 and 23, respectively, and fitting the nuts 24 and 25 into the male threads at the bases of the connectors 12 and 13 protruding from one side wall of the chassis 20. Then, as shown in FIG. 3, the entire circuit device 10 is fixed inside one side wall of the chassis 20.

[0005]

[Problems to be solved by the device]

 However, in such a mounting structure, if the diameters of the holes 22 and 23 are made larger than the outer diameters of the connectors 12 and 13, if the nuts 24 and 25 are loosened even a little, the circuit device 10 is loosened. Therefore, play cannot be set in the holes 22 and 23. Then, there is a drawback that the work for inserting the connectors 12 and 13 into the holes 22 and 23 becomes troublesome.

In addition, in order to insert the connectors 12 and 13 into the holes 22 and 23 having substantially the same diameter, the rear end of the circuit device 10 is moved in the horizontal direction with the position shown by the broken line in FIG. There is a need. This requires an extra space in the chassis 20 for the length shown by the broken line. On the other hand, a wide variety of components are mounted on the printed circuit board 30, and a large number of components having a large height dimension such as transformer components are also mounted. However, since mounting of components having a large height is limited in the above-mentioned extra space region, the effective area of the printed circuit board 30 is limited as a result.

In view of the above problems, an object of the present invention is to provide a mounting structure that does not require an extra space when mounting a circuit device having a connector.

[0008]

[Means for Solving the Problems]

 According to the present invention, in a structure in which a circuit device in which a connector for external connection is provided outside the case is provided on a side wall of a chassis for mounting a printed circuit board so that the connector protrudes outward from the side wall, A notch into which the connector can be fitted is formed at the edge of the side wall, and the case is provided at the edge of the side wall corresponding to the upper part of the case of the circuit device when the connector is fitted into the notch. It is characterized by the provision of claws for holding down.

[0009]

[Action]

 With this structure, the circuit device only needs to be moved along the side wall of the chassis and the connector is fitted into the notch. Does not require extra space for installation.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to FIG. 1, the same parts as those in FIG. 2 are designated by the same reference numerals. In this example, notches 26 and 27 into which the connectors 12 and 13 can be fitted are provided at the upper edge of one side wall of the chassis 20 for mounting the circuit device 10. In addition, bent claws 28 and 29 are provided at the upper edge of one side wall corresponding to the upper end of the case 11 when the connectors 12 and 13 are fitted to the lowermost portions of the notches 26 and 27.

With this structure, the circuit device 10 is attached to one side wall of the chassis 20 such that the connectors 12 and 13 are fitted into the notches 26 and 27 from above. Of course, male threads are cut at the bases of the connectors 12 and 13, and the circuit device 10 is fixed to the inside of one side wall of the chassis 20 by fitting the nuts 24 and 25. The movement of the circuit device 10 is restricted by the nuts 24, 25 in the direction perpendicular to the one side wall, and by the edges of the one side wall forming the notches 26, 27 and the claws 28, 29 in the vertical and horizontal directions. Regulated.

[0012]

[Effect of device]

 As described above, the mounting structure according to the present invention allows the connector of the circuit device to be projected to the outside of the chassis by the notch instead of the hole, so that the circuit device can be positioned without troublesome positioning and the chassis. It can be mounted on the chassis with less horizontal movement inside the printed circuit board, and the effective area for mounting components on the printed circuit board can be expanded.

[Brief description of drawings]

FIG. 1 is a schematic exploded perspective view for explaining an embodiment of the present invention.

FIG. 2 is a schematic exploded perspective view for explaining a conventional mounting structure.

FIG. 3 is a cross-sectional view of the inside of the chassis viewed from the side for explaining the drawbacks of the conventional mounting structure.

[Explanation of symbols]

 10 circuit device 11 case 12, 13 connector 20 chassis 24, 25 nut 28, 29 claw

Claims (1)

[Scope of utility model registration request] 1. A structure in which a circuit device, in which a connector for external connection is provided so as to project outside a case, is attached to a side wall of a chassis for mounting a printed circuit board so that the connector projects outward from the side wall, A notch into which the connector can be fitted is formed at an edge of the side wall, and when the connector is fitted into the notch, the case is pressed against the edge of the side wall corresponding to the upper part of the case of the circuit device. A mounting structure for a circuit device having a connector, which is provided with a claw for holding.