JP5257653B2 - Electronic circuit equipment - Google Patents

Description

  The present invention relates to a circuit board on which a connector and an electronic component are mounted, and a metal shield that exposes a part of the connector to the outside and surrounds other parts of the connector excluding the connector and the electronic component. The present invention relates to an electronic circuit device including a case.

  Conventionally, as this type of electronic circuit device, for example, one described in Patent Document 1 below is known. The electronic circuit device described in Patent Document 1 includes a circuit board on which a connector and various electronic components such as an integrated circuit and a transistor are mounted (arranged) on a wiring pattern, and a connector that is a part of the connector. The metal shield case (shield member) disposed on the circuit board so as to expose the predetermined portion of the connector to the outside and surround other portions of the connector excluding the predetermined portion and the electronic component (for example, the integrated circuit) In this case, the outer shape of the connector is formed in a substantially rectangular parallelepiped shape, and is connected to a predetermined external device via a wiring member made of, for example, a shield cable.

  The shield case is made of a conductive material such as iron and is formed in a substantially box shape. The integrated circuit or the connector mounting surface side is opened in a substantially rectangular shape, and a thin plate corresponding to the opening. An upper wall portion and four thin plate-like side wall portions hanging down so as to surround the upper wall portion, and are provided on, for example, a circuit board so as to cover the other portion of the connector and the integrated circuit. Mounted on the ground pattern. At this time, a housing space for housing the other portion of the connector and the integrated circuit is formed by the upper wall portion of the shield case, the four side wall portions, and the circuit board.

In the shield case configured to have the opening, the upper wall, and the four side walls as described above, the lower side of one of the four side walls (that is, the contact portion with the circuit board) ) Is a notch formed in a substantially U-shaped groove shape so that only the predetermined portion of the rectangular parallelepiped connector is exposed to the outside (in other words, avoiding the rectangular parallelepiped connector). A part is provided. That is, the one side wall portion includes a substantially U-shaped notch portion for exposing the predetermined portion of the connector to the outside of the shield case, and the substantially U-shaped notch portion includes the predetermined portion. A rectangular parallelepiped connector is fitted to expose the location.
JP-A-8-293687

  In the case of the electronic circuit device described in Patent Document 1 described above, a substantially U-shaped notch is provided in a metal shield case to expose a part of the rectangular parallelepiped connector (the predetermined portion) to the outside. The rectangular parallelepiped connector fits into the substantially U-shaped cutout.

  At this time, it is preferable that the connector is fitted into the shield case so that the outer peripheral wall of the connector having a rectangular parallelepiped shape is in contact with the substantially U-shaped cutout portion without any clearance, but each part of the connector, Since there is a dimensional tolerance in the dimension of each part of the shield case including the notch, the clearance cannot be eliminated. That is, a minute clearance is generated between the outer peripheral wall of the connector and the notch provided in the shield case.

Then, the electromagnetic wave emitted from the electronic component (the integrated circuit) passes through the minute clearance and leaks to the outside of the shield case (shield member), so that other devices (for example, arranged around the electronic circuit device (for example, There is a problem that the external device) is adversely affected and other devices malfunction due to the influence of electromagnetic noise.
In view of the above-described problems, an object of the present invention is to provide an electronic circuit device that prevents other devices from malfunctioning by blocking electromagnetic wave leakage to the outside of a shield member.

The present invention is, first of second cylindrical portion made of a conductive material having a hollow portion and is integrally formed connectors and electronic communicating with base and the first cavity portion made of a conductive material having a hollow portion A circuit board on which components are disposed, and a part of the base part and a notch part formed to expose the cylindrical part to the outside, and other parts of the base part excluding the part of the base part And a shield member made of a conductive material disposed on the circuit board so as to surround the electronic component, wherein the connector has the first cavity portion so as to be separated from the base portion. A connection terminal located in the second cavity so as to be spaced apart from the cylindrical part, an insertion hole through which the connection terminal is inserted, and the first cavity and the second cavity In the state straddling the first An insulator which is filled in the second cavity is provided, and a projecting portion made of a conductive material formed on the base, the wall portion of the shield member is formed around the cutout portion comes The connector and the shield member are arranged on the circuit board so as to come into contact with each other.

The present invention, connectors and a cylindrical portion made of a conductive material having a second cavity communicating with the base and the first cavity portion made of a conductive material having a first hollow portion are integrally formed and A circuit board on which an electronic component is disposed; a notch portion formed so as to expose a part of the base portion and the cylindrical portion to the outside; and the other of the base portion excluding the part of the base portion And a shield member made of a conductive material disposed on the circuit board so as to surround the electronic component, the connector has the first cavity so as to be separated from the base portion. The first cavity and the second cavity have a connection terminal located in the second cavity so as to be spaced apart from the cylindrical part, and an insertion hole through which the connection terminal is inserted. In the state straddling and 1, an insulator is filled in the second cavity is provided a recess portion as an intervening wall portion of the shield member is formed around the notch in the base portion is provided, wherein The hollow portion includes a pair of opposing walls that are opposed to each other with the wall portion interposed therebetween, and one of the pair of opposing walls is in contact with the opposing wall and the wall portion. The shield member is arranged on the circuit board.

  ADVANTAGE OF THE INVENTION According to this invention, the initial objective can be achieved and the electronic circuit device which does not have a possibility that another apparatus may malfunction can be provided by interrupting | blocking electromagnetic wave leakage to the exterior of a shield member.

(First Embodiment) A first embodiment of an electronic circuit device according to the present invention will be described below with reference to the accompanying drawings. 1 is a perspective view of the electronic circuit device according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the electronic circuit device according to the same embodiment, FIG. 3 is a cross-sectional view taken along the line AA in FIG. It is a principal part rear view of the connector and shield member of the state which removed the circuit board by an embodiment.

  In FIG. 1, the electronic circuit device C according to the present embodiment is mainly composed of a circuit board 10, a connector 20, and a metal shield case (shield member) 30.

  The circuit board 10 is formed of a hard circuit board having wiring patterns (not shown) on both surfaces of a glass epoxy base material, for example, and includes various types of electronic components such as an integrated circuit (IC) 11, resistors and transistors not shown, The connector 20 is electrically connected to the wiring pattern. This means that the integrated circuit 11, the resistor, the transistor, and the connector 20 are mounted (arranged) on the circuit board 10 (the wiring pattern).

  In the present embodiment, the integrated circuit 11 and the connector 20 are configured to be mounted on the surface side of the circuit board 10. In the present embodiment, the circuit board 10 is configured as a single-layer circuit board. However, for example, the circuit board 10 may be a laminated circuit board having two or more layers. Reference numeral 12 denotes a first hole through which a pair of connection terminals described later of the connector 20 penetrates, reference numeral 13 denotes a second hole through which each rod-shaped terminal described later of the connector 20 passes, and reference numeral 14 denotes a shield case 30. A third hole portion through which a pair of first and second foot portions, which will be described later, penetrates.

  As shown in FIGS. 1 and 2, the connector 20 includes a base portion 22 in which a first cavity portion 21 that is a substantially L-shaped internal space is formed, and a base portion so as to be located to the right of the base portion 22. 22, a cylindrical portion 24 having a second cavity portion 23 communicating with the first cavity portion 21, a pair of connection terminals 25 positioned inside each of the cavity portions 21, 23, and a cylindrical portion 24 and a resin case 26 formed so as to surround it.

  The base portion 22 has a substantially rectangular parallelepiped shape, and in this case, is formed of a conductive material (for example, brass). Reference numeral 22a denotes four rod-like terminals that are formed in a rod shape so as to protrude downward from the four corners of the bottom portion 22b of the base portion 22. Each rod-like terminal 22a is a circuit board when the connector 20 is mounted on the circuit board 10. The protruding portions of the respective rod-like terminals 22a that pass through the second hole portions 13 of the 10 and protrude from the second hole portions 13 are soldered and connected to a ground pattern (not shown) provided on the back side of the circuit board 10. The

  Further, 22c is a flat flange portion (protrusion) having a substantially U-shape integrally formed with the base portion 22 so as to protrude outward from the three outer peripheral walls 22d of the base portion 22 excluding the bottom portion 22b of the base portion 22. In the present embodiment, the flange portion 22c is formed of a conductive material (for example, brass) and is a substantially central portion in the longitudinal direction of the connector 20, and is the aforementioned portion of the base portion 22 along the longitudinal direction. The three outer peripheral walls 22d are provided respectively. When the connector 20 is mounted on the circuit board 10, the flange portion 22 c has a flat portion (flat surface) F located on the shield case 30 side of the flange portion 22 c in surface contact with a later-described wall portion of the shield case 30. (Refer to FIG. 2).

  The cylindrical portion 24 is made of a conductive material (for example, brass), like the base portion 22, and when a mating connector provided in a shielded cable, which will be described later, which is the mating side of the connector 20 is fitted into the resin case 26, The shield cable is electrically connected to a shield portion described later.

  The pair of connection terminals 25 are located in the inner space of the cylindrical portion 24 and the base portion 22 (that is, in each of the hollow portions 21 and 23), and from the cylindrical portion 24 to the base portion to correspond to the shape of the first hollow portion 21. 22 is provided with a bent portion 25a that is bent approximately 90 degrees when reaching the bottom portion 22b.

  The bent portion 25a has a tip end projecting below the bottom portion 22b, and when the connector 20 is mounted on the circuit board 10, the tip end side of the bent portion 25a penetrates the first hole 12 of the circuit board 10. The protruding end portion of the bent portion 25 a protruding from the first hole portion 12 is soldered and connected to the wiring pattern provided on the back side of the circuit board 10.

  Reference numeral 27 denotes an insulator filled in each of the cavity portions 21 and 23 corresponding to the vicinity of the boundary between the cylindrical portion 24 and the base portion 22 so that each connection terminal 25 does not contact the base portion 22 and the cylindrical portion 24. The insulator 27 has an insertion hole 27a through which the connection terminal 25 is inserted.

  By connecting and fixing the connection terminal 25 in the insertion hole 27 a in this way, the connection terminal 25 is positioned and fixed in the hollow portions 21 and 23 so as not to contact the base portion 22 and the cylindrical portion 24. That is, the connection terminal 25 has a configuration in which a substantially central portion is covered with the insulator 27 and both end sides of the connection terminal 25 are exposed from the insulator 27.

  Among these, one end side of the connection terminal 25 exposed to the cylindrical portion 24 side is fitted with a mating connector of a shielded cable, which will be described later, which is the mating side of the connector 20, in the resin case 26. A predetermined signal output from the device can be received.

  On the other hand, the other end side of the connection terminal 25 exposed to the base 22 (bottom 22b) side corresponds to the bent portion 25a described above, and the predetermined signal is provided on the back side of the circuit board 10. It is transmitted to the wiring pattern.

  The resin case 26 is formed in a substantially frame shape so as to accommodate the counterpart connector whose outer shape is a substantially frame shape, and is fixed using a base 22 and a predetermined fixing means so as to surround the outer periphery of the cylindrical portion 24. Being done. And the said other party connector is fitted in the resin case 26, The said predetermined signal is transmitted to the connector 20 side (namely, connection terminal 25) via the said shield cable.

  Here, the shielded cable 40 (see FIG. 1) that connects the external device and the connector 20 will be described. The shielded cable 40 includes two signal transmission lines 41 for transmitting the predetermined signal output from the external device to the connector 20 side (connection terminal 25), and a shield line 42 surrounding the signal transmission line 41. And an insulating member 43 that further surrounds the shield wire 42 (see FIG. 3). In this case, the signal transmission line 41 is covered with an insulating film 41a so that the signal transmission line 41 and the shield line 42 are not short-circuited.

  Although the detailed illustration is omitted, the shield wire 42 is configured to cover the signal transmission line 41 in a state where innumerable thin iron wires are bundled, and has a function of suppressing leakage of electromagnetic waves emitted from the signal transmission line 41. .

  One end of the shielded cable 40 configured in this way is connected to the external device. Further, a mating connector 44 that is the mating side of the connector 20 is attached to the other end side opposite to the one end side, and the mating connector 44 can be fitted into the resin case 26. It has an outer shape.

  Although the detailed illustration of the counterpart connector 44 is omitted, in order to maintain the connection state between the connection terminal 25 of the connector 20 and the signal transmission line 41 when fitted to the connector 20 (resin case 26), signal transmission is performed. In order to maintain the connection state between the cylindrical portion 24 of the connector 20 and the shield wire 42, a female portion where the terminal portion of the wire 41 is disposed, a conductive portion that is conductively connected to the shield wire 42, and the like are provided.

  The shield case 30 is made of a conductive material such as iron, is formed in a substantially box shape, has a substantially rectangular opening 31 whose surface side of the circuit board 10 is open (opened), and a thin plate corresponding to the opening 31 And a thin plate-like four side wall portion 33 formed so as to surround the upper wall portion 32.

  In the following description, the side wall 33 corresponding to the position of the connector 20 is the first side wall 33a, and the side wall 33 opposite to the first side wall 33a is the second side wall 33b. The side wall 33 adjacent to the left side of the first side wall 33a is the third side wall 33c, adjacent to the right side of the first side wall 33a in FIG. 1, and is opposed to the third side wall 33c. The side wall portion 33 is defined as a fourth side wall portion 33d.

  Then, below the first side wall portion 33a corresponding to the position where the connector 20 is disposed, the base portion 22 of the connector 20 is avoided (that is, a part of the connector 20 described later is exposed outside the shield case 30). A cutout portion 34 is formed which is formed in a substantially U-shaped cutout. As a result, the first side wall portion 33 a is formed with a thin plate-like wall portion 35 having a reverse concave shape around the notch portion 34 so as to surround the notch portion 34.

  The third side wall 33c is provided with a pair of first leg portions 36 each including a convex portion projecting downward from the vicinity of both ends of the bottom surface thereof, and the fourth side wall portion 33d has a bottom surface thereof. And a pair of second legs 37 that are opposed to the pair of first legs 36. These foot portions 36 and 37 are formed at positions corresponding to the respective third hole portions 14 of the circuit board 10, and the respective foot portions 36 and 37 are passed through the respective third hole portions 14 to form third holes. By connecting the protruding end portions of the feet 36 and 37 protruding from the portion 14 to the ground pattern by soldering, the shield case 30 surrounds the integrated circuit 11 and other portions of the connector 20 described later. Mounted on the substrate 10.

  The electronic circuit device C is configured by the above units. Next, an assembly example of the circuit board 10, the connector 20, and the shield case 30 constituting the electronic circuit device C will be described. First, the connector 20 is set on the upper side of the circuit board 10 so that the connection terminal 25 (the bent portion 25a) corresponds to the first hole portion 12 and the rod-shaped terminal 22a corresponds to the second hole portion 13. To do. Next, by moving the connector 20 downward from this state, the bent portion 25a of the connection terminal 25 penetrates the first hole portion 12, and at the same time, each rod-like terminal 22a penetrates each second hole portion 13. .

  Next, the protruding portion of the bent portion 25a protruding from the first hole 12 and the wiring pattern are soldered and connected, and the protruding portion of each rod-like terminal 22a protruding from each second hole 13 The connector 20 is mounted on the circuit board 10 by soldering the ground pattern.

  Next, the shield case 30 is connected to the connector 20 so that the first and second legs 36 and 37 correspond to the third holes 14 and the base 22 of the connector 20 corresponds to the notch 34. Is set on the upper side of the circuit board 10 on which is mounted. Next, by moving the shield case 30 downward from this state, the first and second legs 36 and 37 penetrate the third holes 14 and the notch 34 is formed on the base 22 (3 The shield case 30 is mounted on the circuit board 10 so as to cover the two outer peripheral walls 22d).

  Next, the protruding portions of the legs 36 and 37 protruding from the third holes 14 and the ground pattern are soldered and connected, so that a part of the connector 20 (in this case, flat in FIG. 2). 2 and the other part of the connector 20 excluding the part of the connector 20 (in this case, the left side of the flat part F in FIG. 2). The shield case 30 is mounted (arranged) on the circuit board 10 so as to surround the integrated circuit 11.

At this time, the flat portion F located on the shield case 30 side in the flange portion 22c integrally formed with the connector 20 and the wall portion located around (periphery) the notch portion 34 formed in the first side wall portion 33a. The outer wall surface of 35 is in surface contact (contact) (see FIGS. 2 and 4). In this case, the flange portion 22c is formed to project outward from the above-described three outer peripheral walls 22d constituting the upper wall portion and both side wall portions of the base portion 22. That is, in the sectional view of FIG. 2, the flange portion 22c protruding from the upper wall portion is illustrated, and in the rear view of FIG. 4, two flange portions 22c protruding from the both side wall portions are illustrated. Has been.

  Accordingly, the flange portion 22c in this example has a bowl shape formed of a U-shaped wall continuously formed over the upper wall portion and the both side wall portions, and the flange portion 22c formed of the U-shaped wall of the flange portion 22c. A configuration in which the base portion 22 is covered by the notch portion 34 so that the flat portion F is in surface contact with the outer wall surface of the wall portion 35 located around the notch portion 34 that is notched in a U-shape. It has become.

  In other words, in the case of this embodiment, on the shield case 30 side, a wall portion 35 having a reverse concave shape is formed around the notch portion 34 that is notched in a substantially U shape, On the connector 20 side, a flange portion 22c made of a U-shaped wall is extended and extended outward from the three outer peripheral wall 22d portions of the base portion 22 excluding the bottom portion 22b. Then, the connector 20 and the shield case 30 so that the flat portion F of the flange portion 22c made of the U-shaped wall and the 35 wall portions corresponding to (facing) the flat portion F are in surface contact (contact). Is arranged on the circuit board 10.

  At this time, the flange portion 22c (flat portion F) serving as the surface contact region and the 35 portions of the wall portion corresponding to the flange portion 22c (flat portion F) are both formed of a conductive material, and the circuit board. A space S1 formed by the base 10, including the shield case 30 and the flange 22c, constitutes a closed space for confining the integrated circuit 11 mounted on the circuit board 10 (see FIG. 2).

  When an electromagnetic wave is emitted from the integrated circuit 11, the electromagnetic wave is caused by, for example, the notch 34 and the three outer peripheral walls 22d surrounding the cutout 34 due to variations in dimensional tolerances in each part of the connector 20 and the shield case 30. The minute clearance S2 in the space S1 formed therebetween can pass through (see FIGS. 2 and 4). However, since the surface contact region exists around the minute clearance S2, the electromagnetic wave cannot pass through the electrically connected surface contact region, and is in front of the surface contact region. Blocked at (just before).

  Therefore, according to this embodiment, the connector 20 and the flange portion 22c (flat portion F) and the wall portions 35 of the shield case 30 corresponding to the flange portion 22c (flat portion F) are brought into surface contact. Since the shield case 30 is mounted on the circuit board 10, the electromagnetic wave emitted from the integrated circuit 11 does not leak outside the space S1 (shield case 30). There is no possibility of malfunction of other devices (for example, the external devices) arranged.

When the connector 20 and the shield case 30 are mounted on the circuit board 10, the predetermined signal output from the external device is transmitted through the signal transmission line 41 of the shield cable 40 and the connection terminal 25 of the connector 20. 10 is sent to a wiring pattern provided in the circuit 10. The shield wire 42 surrounding the signal transmission line 41 is connected to the ground pattern provided on the circuit board 10 via the cylindrical portion 24 of the connector 20 and the base portion 22 (rod-like terminal 22a) of the connector 20, and is cylindrical. It is connected to the ground pattern via the portion 24, the flange portion 22c of the base portion 22, and the shield case 30 (foot portions 36, 37) .

  Further, in the present embodiment, the example in which the flange portion 22c is formed in a thin plate shape as shown in FIGS. 2 and 4 has been described, but the plate thickness dimension of the flange portion 22c is arbitrary, for example, FIG. The flange portion 22c shown in FIG. 4 may be formed by a stepped portion (projection portion) having a thick shape that comes into contact with the resin case 26.

  In the present embodiment, the connector 20 and the shield case 30 are mounted on the circuit board 10 so that the flat portion F of the flange portion 22c and the outer wall surface of the wall portion 35 (first side wall portion 33a) abut. As an example, the connector 20 and the shield case 30 are mounted on the circuit board 10 so that the inner wall surface of the wall portion 35 and the flat portion F abut instead of the outer wall surface of the wall portion 35, for example. Also good. Further, even when the inner wall surface of the wall portion 35 and the flange portion 22c are in contact with each other as described above, it goes without saying that the plate thickness dimension of the flange portion 22c can be set to any size.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. The same reference numerals are used for the same or corresponding parts as in the first embodiment, and the details thereof are used. The detailed explanation is omitted. 5 is a cross-sectional view of the electronic circuit device according to the second embodiment of the present invention, and FIG. 6 is a main part rear view of the connector and the shield member with the circuit board according to the second embodiment removed.

  The second embodiment is different from the first embodiment in that the flange portion 22c is eliminated and all (four) outer peripheral walls 22d including the bottom portion 22b of the base portion 22 which is a substantially central portion of the connector 20 in the longitudinal direction. Each of the recesses 28 is formed with a recess groove 28, and a wall portion 35 is interposed in the three recess portions 28 formed on the three outer peripheral walls 22d other than the bottom portion 22b so that a part of the connector 20 described later is exposed to the outside. The three recesses 28 include a pair of first and second opposing walls 28a and 28b that are opposed to each other with the wall 35 interposed therebetween, and the first opposing wall 28a of the opposing walls 28a and 28b The connector 20 and the shield case 30 are mounted on the circuit board 10 so that the wall 35 is in surface contact (contact).

  That is, the connector 20 is formed with a recess 28 made of a concave groove at a predetermined position (specifically, approximately the central portion in the longitudinal direction of the connector 20) on the four outer peripheral walls 22d including the bottom 22b of the base portion 22. It becomes. Here, in FIG. 5, the upper wall portion in the base portion 22 and the recessed portion 28 provided at the outer peripheral wall 22 d portion serving as the bottom portion 22 b are illustrated, and in FIG. 6, the outer periphery serving as the both side wall portions in the base portion 22. A pair of depressions 28 provided at the wall 22d are shown.

  As described above, in the second embodiment, the recess 20 is provided in the substantially central portion of the connector 20 over the entire circumference, so that the connector 20 has the resin case 26 side and the base 22 side where the rod-shaped terminal 22a is located. And are integrally formed through a connecting portion 29 having a thin shape. Needless to say, the connecting portion 29 has a shape surrounding the outer periphery of the insulator 27.

  Therefore, when the connector 20 according to the second embodiment is mounted on the circuit board 10 and the shield case 30 is mounted on the circuit board 10 on which the connector 20 is mounted, the connecting portion 29 corresponds to the notch portion 34. In addition, the shield case 30 is mounted (arranged) on the circuit board 10 so that the recess 28 positioned around the connecting portion 29 corresponds to the wall portion 35 of the shield case 30 positioned around the notch 34. It becomes the composition to be done.

  When the shield case 30 is mounted on the circuit board 10, a part of the connector 20 (that is, 20 connectors located on the right side of the first side wall portion 33 a in FIGS. 5 and 6) is shielded. It becomes the structure exposed outside. At this time, paying attention to the positional relationship between the recess 28 and the wall 35, the recess 28 includes a pair of first and second opposing walls 28 a and 28 b that are opposed to each other with the wall 35 interposed therebetween. The shield case 30 is mounted on the circuit board 10 so that the first opposing wall 28a located on the rod-shaped terminal 22a side of the walls 28a and 28b and the corresponding 35 wall portions are in surface contact (contact). The configuration is as follows.

  According to the second embodiment, the three outer peripheral walls 22d excluding the bottom portion 22b of the connector 20 have a part of the connector 20 described above and another part of the connector 20 excluding a part of the connector 20 (that is, 5 and 6, a wall portion 35 formed around the periphery (periphery) of the notch portion 34 is interposed in the vicinity of the boundary portion between the first side wall portion 33a and 20 connectors located on the left side of the first side wall portion 33a. Each of such depressions 28 is provided. And these three hollow parts 28 are each provided with a pair of 1st, 2nd opposing wall 28a, 28b which opposes on both sides of the wall part 35, and each 1st among both opposing walls 28a, 28b is included. The connector 20 and the shield case 30 are mounted (arranged) on the circuit board 10 so that the opposing wall 28a and the wall 35 are in surface contact (contact).

  Therefore, the electromagnetic waves emitted from the integrated circuit 11 provided in the space S1 are in surface contact with the first facing wall 28a and the wall 35, both made of a conductive material, as in the first embodiment. And since these are electrically connected, it will be in the state enclosed in space part S1, and it will not leak outside the shield case 30. FIG. That is, since the electromagnetic wave cannot pass through the surface contact portion between the first facing wall 28a and the wall portion 35, the electromagnetic wave does not leak to the outside of the shield case 30, and the same action as in the first embodiment. An effect can be obtained.

  In the second embodiment, the connector 20 and the shield case 30 are mounted on the circuit board 10 so that the first opposing wall 28a and the wall portion 35 are in contact with each other. For example, the first opposing wall 28a is used. Even when the connector 20 and the shield case 30 are mounted on the circuit board 10 so that the second opposing wall 28b positioned on the resin case 26 side is in contact with the wall portion 35, the same effect can be obtained. Can do.

  In each of the embodiments, the example in which the integrated circuit 11 is arranged in the space portion S1 (the closed space) has been described. However, for example, another electronic component (for example, a transistor) is replaced in the closed space instead of the integrated circuit 11. It is also possible to arrange them.

1 is a perspective view of an electronic circuit device according to a first embodiment of the present invention. It is sectional drawing of the electronic circuit device by the same embodiment. It is AA sectional drawing of FIG. It is a principal part rear view of a connector and a shield member in the state where the circuit board by the embodiment was removed. It is sectional drawing of the electronic circuit apparatus by 2nd Embodiment of this invention. It is a principal part rear view of the connector and shield member of the state which removed the circuit board by the 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Circuit board 11 Integrated circuit 20 Connector 22 Base 22b Bottom 22c Flange part (projection part)
22d outer peripheral wall 26 resin case 28 hollow portion 28a first opposing wall 28b second opposing wall 29 connecting portion 30 shield case (shield member)
33 Side wall portion 33a First side wall portion 34 Notch portion 35 Wall portion 40 Shielded cable F Flat portion (flat surface)
S1 space S2 micro clearance

Claims (2)

First second connector and the cylindrical portion are integrally formed of electrically conductive material having a cavity and the electronic component is disposed in communication with the base and the first cavity portion made of a conductive material having a hollow portion A circuit board,
A notch portion formed so as to expose a part of the base portion and the cylindrical portion to the outside, the other portion of the base portion excluding a part of the base portion and the electronic component so as to be surrounded In an electronic circuit device comprising a shield member made of a conductive material disposed on a circuit board,
The connector has a connection terminal located in the first cavity portion so as to be separated from the base portion and located in the second cavity portion so as to be separated from the cylindrical portion, and an insertion hole through which the connection terminal is inserted. And an insulator that fills the first and second cavities in a state of straddling the first cavity and the second cavity ,
The connector and the shield member are arranged on the circuit board so that a protrusion made of a conductive material formed on the base and a wall of the shield member formed around the notch are in contact with each other. An electronic circuit device characterized in that it is configured to be installed First second connector and the cylindrical portion are integrally formed of electrically conductive material having a cavity and the electronic component is disposed in communication with the base and the first cavity portion made of a conductive material having a hollow portion A circuit board,
A notch portion formed so as to expose a part of the base portion and the cylindrical portion to the outside, the other portion of the base portion excluding a part of the base portion and the electronic component so as to be surrounded In an electronic circuit device comprising a shield member made of a conductive material disposed on a circuit board,
The connector has a connection terminal located in the first cavity portion so as to be separated from the base portion and located in the second cavity portion so as to be separated from the cylindrical portion, and an insertion hole through which the connection terminal is inserted. And an insulator that fills the first and second cavities in a state of straddling the first cavity and the second cavity ,
The base is provided with a recess that interposes the wall of the shield member formed around the notch,
The hollow portion includes a pair of opposing walls that are opposed to each other with the wall portion interposed therebetween, and the connector and the one of the pair of opposing walls and the wall portion are in contact with each other. An electronic circuit device characterized in that the shield member is arranged on the circuit board.

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