JP2017216419A - Electronic device and manufacturing method of electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device having a more preferable structure which enables a ground pattern of a circuit board to electrically connect with a housing when a straight type connector is used as a connector for input and output of the circuit board.SOLUTION: An electronic device A includes: a circuit board 1; a housing 4 which houses the circuit board 1; a straight type connector 3 which is attached so as to face a first surface of the circuit board 1 and enables connection between the circuit board 1 and an external device of the housing 4; and a conductive member 2 having a connection part 2a sandwiched between the connector 3 and the first surface of the circuit board 1 and connected with a ground pattern 1b of the circuit board 1, and a protruding part 2b which protrudes in a normal direction of the first surface of the circuit board 1 and electrically connects the housing 4 with the ground pattern 1b of the circuit board 1 through the connection part 2a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electronic device and a method for manufacturing the electronic device.

  In general, a connector is used to enable transmission and reception of electrical signals from a device external to the circuit board housed in the housing of the electronic device. As such an input / output connector, a right angle type connector in which a connector pin has an L shape is known (see, for example, Patent Document 1).

  On the other hand, due to the recent demand for lead-free and downsizing of electronic devices, connector pins and contacts (representing terminals on the side connected to external devices of the connector; the same applies hereinafter) are normal directions of the circuit board surface. It has been studied to use a straight-type press-fit connector that extends in a straight line.

  When a straight-type press-fit connector is used, the connector does not require a solder mounting process for connecting the connector pin to the circuit board, and the manufacturing process can be reduced. This eliminates the need for heat countermeasures and contributes to a reduction in manufacturing costs. In addition, since the connector can be fixed to the circuit board without using fixing parts such as screws, it is not necessary to provide an extra area for providing the fixing parts on the circuit board, and the circuit board can be downsized. can do. In addition, the circuit board connected to the connector can be disposed so as to be in close contact with the wall surface of the housing with one surface of the circuit board facing the wall surface of the housing. It is also possible to reduce the arrangement space of the circuit board.

JP 2014-003206 A

  By the way, in consideration of improvement of EMC (Electro Magnetic Compatibility) performance and stabilization of the ground potential, it is generally desired that the ground pattern of the circuit board is electrically connected to a metal casing. In particular, when an inverter, a DCDC converter, or the like is present in the same casing as the casing in which the circuit board is accommodated, the potential of the circuit board is likely to be affected by electromagnetic noise generated from these, Such a configuration is important.

  In this regard, when using a straight-type press-fit connector as described above, the circuit board insulates the power supply / signal pattern of the circuit board from the casing, so that one surface of the circuit board is connected to the inside of the casing. It will be arrange | positioned so that it may oppose in the state spaced apart with respect to the wall surface. Further, in order to expose the contact of the connector on the side surface side of the housing, the circuit board is often arranged so as to lie on the side surface side of the housing.

  For this reason, when using a straight-type press-fit connector, the circuit board is harder to fix to the housing than when using a right-angle type connector. The configuration for electrically connecting to the housing and the assembly process tend to be complicated. In other words, such a configuration tends to increase the number of parts, increase the man-hour for assembly, and increase the manufacturing cost. For example, a method of connecting to the housing via a harness etc. from the ground pattern of the circuit board is also conceivable, but in that case, a harness and a fixing part for fixing the harness to the housing are necessary, and the number of parts Will increase, and the assembly man-hours for that will also increase.

  The present invention has been made in view of the above problems, and when a straight type connector (in particular, a straight type press-fit connector) is used as an input / output connector for a circuit board, It is an object of the present invention to provide an electronic device having a more preferable structure and a method for manufacturing the electronic device, in which a ground pattern can be electrically connected to a housing.

  The main present invention that solves the above-described problems includes a circuit board, a casing that accommodates the circuit board, and a first surface of the circuit board that is mounted so as to face the outside of the circuit board and the casing. A straight connector that can be connected to the device, a connection portion that is sandwiched between the connector and the first surface of the circuit board, and is connected to a ground pattern of the circuit board, and the circuit board An electronic device comprising: a conductive member that protrudes in a normal direction of the first surface and has a protruding portion that electrically connects the housing and the ground pattern of the circuit board via the connection portion. It is.

  Also, the circuit board, a housing that accommodates the circuit board, and a straight that is mounted so as to face the first surface of the circuit board and connect the circuit board and an external device of the housing. A connector of a mold, a connection portion sandwiched between the connector and the first surface of the circuit board, and connected to a ground pattern of the circuit board; and in a normal direction of the first surface of the circuit board A conductive member that protrudes toward the housing and has a protruding portion that electrically connects the casing and the ground pattern of the circuit board via the connecting portion, the electronic device manufacturing method comprising: In the state in which the conductive member is interposed between the connector and the first surface of the circuit board, a connector pin is press-fitted into a through hole of the circuit board, thereby the first of the circuit board. 1's It is a manufacturing method of an electronic device is mounted so as to face the.

  According to this electronic apparatus, even when a straight connector is used as an input / output connector for a circuit board, the ground pattern of the circuit board can be mounted on the housing with a simple configuration and a simple manufacturing process. It is possible to improve the EMC performance by electrically connecting and stabilizing the ground potential of the circuit board housed in the casing of the electronic device.

1 is a diagram illustrating an overall configuration of an electronic device according to an embodiment. The exploded view which shows the connection structure of the circuit board and connector which concern on embodiment The front view which shows the connection structure of the circuit board and connector which concern on embodiment The enlarged view which shows the connection structure of the circuit board and connector which concern on embodiment The figure which planarly viewed the conductive member concerning an embodiment The figure which shows an example of the assembly process of the electronic device which concerns on embodiment The figure explaining the press-fit process which concerns on embodiment The front view which shows the connection structure of the circuit board and connector which concern on a modification

  Hereinafter, an example of an embodiment of a configuration of an electronic device will be described with reference to FIGS. The electronic apparatus A according to the present embodiment is mounted on an electric vehicle, for example, and is used in a charge / discharge control device that controls charging / discharging between a driving battery of the electric vehicle and an external power source.

  FIG. 1 is a diagram illustrating an overall configuration of an electronic apparatus A according to the present embodiment. FIG. 2 is an exploded view showing a connection structure between the circuit board 1 and the connector 3 according to the present embodiment. FIG. 3 is a front view showing a connection structure between the circuit board 1 and the connector 3 according to the present embodiment. FIG. 4 is an enlarged view showing a connection structure between the circuit board 1 and the connector 3 according to the present embodiment. FIG. 5 is a plan view of the conductive member 2 according to the present embodiment. In the following description, in order to clarify the positional relationship between components, the direction in which the connector 3 is attached to one surface (first surface) of the circuit board 1 will be described as being upward.

  The electronic apparatus A according to this embodiment includes a circuit board 1, a conductive member 2, a connector 3, a housing 4, and a connector cover 5.

  The housing 4 houses the circuit board 1, the conductive member 2, and the connector 3 in the housing space. The housing 4 forms a housing space so as to be sealed in order to protect the circuit board 1 and the DCDC converter device (not shown) from moisture and dust. 1 shows a state in which the circuit board 1 is disposed on the inner surface of the housing 4. In FIG. 1, the wall surface on the upper surface side of the housing 4 is omitted for convenience of explanation. 2 and 3, the housing 4 is represented by a dotted line.

  The housing 4 includes a connector insertion window 4a for inserting the connector housing 3a of the connector 3, and the contact 3c of the connector 3 is exposed to the outside of the housing 4 through the connector insertion window 4a. Yes. Further, the housing 4 is formed with an opening 4h for inserting the bolt 6 therein.

  The casing 4 is at least partially made of a conductive member such as an aluminum plate, and the circuit board 1 is in a state in which a stable ground potential can be secured via the conductive member.

  In addition to the above, the housing 4 accommodates an inverter device and a DCDC converter device (not shown).

  An electronic component is mounted on the circuit board 1 to realize various functions of the electronic device A. For example, the circuit board 1 receives an electrical signal from a current detection sensor or a voltage detection sensor arranged in the charge / discharge circuit, and detects a current value or a voltage value of a current flowing through the charge / discharge circuit. The circuit board 1 is constituted by, for example, a rigid printed board based on a hard resin.

  The circuit board 1 includes a through hole 1a, a ground pattern 1b, an electronic component (not shown), and a power / signal pattern (not shown).

  Electronic components included in the circuit board 1 are capacitors, resistors, semiconductor chips, and the like, and electronic components according to functions and applications of the electronic device A are mounted. The electronic component may be mounted on the upper surface side of the circuit board 1 or may be mounted on the lower surface side of the circuit board 1. Further, the electronic component may be mounted on both the upper surface side and the lower surface side of the circuit board 1. Note that a logic circuit or the like that performs arithmetic processing without directly mounting electronic components on the circuit board 1 may be directly formed as a power supply / signal pattern.

  The power / signal pattern of the circuit board 1 is a wiring through which an electric signal flows to each part of the circuit board 1. For example, the power / signal pattern is connected to an electronic component or through-hole 1a, and transmits / receives an electrical signal to / from the electronic component, or transmits / receives an electrical signal to / from the connector pin 3b press-fitted into the through-hole 1a. Or do. The power / signal pattern may be formed on the upper surface side of the circuit board 1, may be formed on the lower surface side of the circuit board 1, or may be formed on both the upper surface side and the lower surface side. The power / signal pattern may be a microstrip line formed on the solid ground pattern 1b. Of course, the power supply / signal pattern may include a logic circuit that performs arithmetic processing. In FIG. 2, the surface of the circuit board 1 represents a state covered with an insulating film.

  The ground pattern 1b is a conductive pattern for determining the ground potential. The ground pattern 1b is formed, for example, so as to surround the power supply / signal pattern. The ground pattern 1 b is at least partially connected to the conductive member 2 and electrically connected to the housing 4 via the conductive member 2 in order to ensure a stable ground potential. Here, the ground pattern 1 b is connected to the conductive member 2 in the region of the connection portion 2 a of the conductive member 2. In the ground pattern 1b, only the region connected to the connection portion 2a of the conductive member 2 is exposed to the outside of the circuit board 1, and this state is shown in FIG.

  The through hole 1a is a through hole into which the connector pin 3b is fitted. A plurality of through holes 1 a are formed at positions corresponding to the plurality of connector pins 3 b of the connector 3. “Fitting” means a state in which the connector pin 3b is fitted and fixed in the through hole 1a.

  The hole diameter of the through hole 1a is approximately the same as the outer diameter of the connector pin 3b, and the connector pin 3b can be inserted. The through-hole 1a has an extended portion 1aa whose hole diameter expands between the upper and lower surfaces of the circuit board 1, and the extended portion 3ba of the connector pin 3b of the connector 3 is fitted into the extended portion 1aa. And the circuit board 1 are fixed (see FIG. 4).

  In addition to the above, the circuit board 1 is formed with a first opening 1h for inserting the bolt 6 and a second opening 1p for inserting the positioning boss 3p of the connector 3. Yes.

  The conductive member 2 is a member for electrically connecting the ground pattern 1b of the circuit board 1 and the housing 4 and stabilizing the ground potential of the ground pattern 1b. The conductive member 2 is configured, for example, by molding a thin plate-like phosphor bronze. A part of the conductive member 2 (connecting portion 2 a) is sandwiched between the upper surface side of the circuit board 1 and the lower surface of the connector housing 3 a of the connector 3, and is fixed to the circuit board 1.

  The conductive member 2 includes a connecting portion 2a, a protruding portion 2b, an insertion window 2c, and a main body portion 2d. The main body 2d is a part that forms the insertion window 2c and connects the connecting part 2a and the protruding part 2b.

  The connection portion 2 a is a portion that is connected to the ground pattern 1 b on the upper surface side of the circuit board 1. The connecting portion 2 a is disposed so as to be sandwiched between the ground pattern 1 b on the upper surface side of the circuit board 1 and the lower surface of the connector housing 3 a of the connector 3. Accordingly, the conductive member 2 can be fixed to the circuit board 1 and can be reliably electrically connected to the ground pattern 1 b of the circuit board 1.

  The protruding portion 2 b is a portion that protrudes from the upper surface of the circuit board 1 toward the inner wall surface side of the housing 4 together with the main body portion 2 d and is in contact with the inner wall surface of the housing 4. In other words, the protruding portion 2b protrudes above the circuit board 1 (in the normal direction of the first surface). In addition, the protrusion part 2b is not limited to the aspect in which the member protrudes in a direction perpendicular to the surface of the circuit board 1, but in a direction inclined from the perpendicular direction. Of course, a projecting aspect is also included. A plurality of protrusions 2b are formed on both sides of the main body 2d. Each of the plurality of protrusions 2b has a leaf spring shape, and each of the plurality of protrusions 2b is in contact with the inner wall surface of the housing 4 so as to be in close contact by elastic deformation. That is, the protruding portion 2b electrically connects the housing 4 and the ground pattern 1b of the circuit board 1 via the connecting portion 2a and the main body portion 2d. As a result, the conductive member 2 electrically connects the ground pattern 1 b of the circuit board 1 and the housing 4.

  In the present embodiment, the contact area between the protrusion 2b and the housing 4 is increased by providing a plurality of the protrusions 2b as described above and connecting the plurality of protrusions 2b to the housing 4. Thus, the ground potential of the circuit board 1 is further stabilized and the EMC performance is improved. Similarly, by increasing the contact area between the protruding portion 2b and the housing 4 in this way, the heat dissipation characteristics from the circuit board 1 can also be improved. However, the shape or the like of the protruding portion 2b is arbitrary as long as the ground pattern 1b of the circuit board 1 and the housing 4 can be electrically connected. For example, a column extending from the connecting portion 2a to the upper side of the circuit board 1 It may be a shape. In addition, as a configuration for bringing the protruding portion 2b and the inner wall surface of the housing 4 into contact with each other, an elastic member such as a leaf spring may be provided on the housing 4 side in contact with the protruding portion 2b.

  The insertion window 2 c is an opening for inserting the connector pin 3 b of the connector 3. In other words, the insertion window 2c is an opening formed by the main body 2d. The main body 2d has such a shape that the conductive member 2 does not come into contact with the power / signal pattern of the circuit board 1 when the conductive member 2 is fixed on the circuit board 1.

  The conductive member 2 has a first opening 2h for inserting the bolt 6 and a second opening 2p for inserting the positioning boss 3p of the connector 3 aligned with the insertion window 2c. (See FIG. 5).

  Here, it is assumed that the conductive member 2 is formed of plate-shaped phosphor bronze, but the entire member does not need to have conductivity, and the connection portion 2a, the protruding portion 2b, and these are electrically connected. As long as the part has conductivity, the other region may be formed of an insulating member.

  The connector 3 is a connection component for electrically connecting the power / signal pattern of the circuit board 1 and an external device (not shown) of the electronic device A. As the connector 3, for example, a straight press-fit connector can be used. In addition, a straight type connector means that the connector pin 3b and the contact 3c extend in the same direction. The press-fit connector is a connector that attaches the connector 3 to the circuit board 1 by press-fitting the connector pins 3b into the through holes 1a of the circuit board 1.

  The connector 3 includes a connector housing 3a, connector pins 3b, and contacts 3c.

  The connector housing 3a is a case for housing the connector pins 3b and the contacts 3c. The connector housing 3a is made of an insulating resin, for example. The connector housing 3a is formed with a boss 3p for positioning when the connector 3 is mounted on the circuit board 1, and an opening 3h for inserting the bolt 6.

  The connector pin 3b is inserted into the through hole 1a of the circuit board 1 and transmits / receives an electric signal to / from the power / signal pattern of the circuit board 1. The connector pin 3b extends from the position of the through hole 1a of the circuit board 1 to the outside of the housing 4 in the normal direction of the circuit board 1, and the electric signal between the power / signal pattern of the circuit board 1 and an external device. It is also a contact 3c for enabling transmission / reception.

  The connector pin 3b has an expanded portion 3ba whose outer diameter is expanded between the distal end side and the proximal end side of the connector pin 3b, and the expanded portion 3ba is fitted to the expanded portion 1aa of the through hole 1a of the circuit board 1 Thus, the connector 3 is fixed to the circuit board 1 (see FIG. 4). In addition, the outer diameter of the expansion part 3ba of the connector pin 3b is larger than the hole diameter of the through hole 1a, and is substantially the same as or smaller than the hole diameter of the expansion part 1aa of the through hole 1a.

  The connector cover 5 is an exterior part of the connector 3. The connector cover 5 is attached from the outside of the housing 4 to the connector housing 3 a exposed to the outside of the housing 4 through the connector insertion window 4 a of the housing 4. The connector cover 5 is formed with a contact exposure window 5a for exposing the contact 3c of the connector 3 to the outside of the housing 4, and a bolt receiving hole 5h for inserting the bolt 6.

  The circuit board 1, the conductive member 2, the connector 3, and the connector cover 5 of the electronic device A according to the present embodiment have the above-described configuration, and these components are fixed to the housing 4 by bolts 6. Yes. More specifically, the bolt 6 is connected to the first opening 1 h of the circuit board 1, the first opening 2 h of the conductive member 2, the opening 3 h of the connector 3, and the housing 4 from the lower surface side of the circuit board 1. These parts are fixed to the housing 4 by being inserted into the bolt receiving holes 5h of the connector cover 5 and fastened.

  Note that the bolt 6 is an example of a fixing member, and other members may be used. For example, it is good also as a structure which fixes components using an adhesive material etc.

(Electronic device assembly process)
Hereinafter, with reference to FIGS. 6 to 7, an example of a process for assembling the above-described components in the manufacturing process of the electronic apparatus A according to the present embodiment will be described.

  FIG. 6 is a diagram illustrating an example of an assembly process of the electronic device A according to the present embodiment. FIG. 7 is a diagram for explaining the press-fitting process according to the present embodiment.

  The assembly process of the electronic device A according to the present embodiment includes a component placement process (step S1), a press-fitting process (step S2), and a mounting process to the housing 4 (step S3). These series of steps are executed by, for example, an automatic assembly device including a component conveying device, a press-fitting device, and a fastening device.

  The component placement step (step S1) is a step of placing the circuit board 1, the conductive member 2 and the connector 3 in a positioned state prior to the press-fitting step (step S2). In this process, first, the component conveying device arranges the circuit board 1, the conductive member 2, and the connector 3 in this order from the lower side (see FIG. 3).

  At this time, the component conveying device inserts the positioning boss 3p of the connector housing 3a into the second opening 2p of the conductive member 2 and the second opening 1p of the circuit board 1. These parts are positioned. By positioning the components, the connector pin 3b of the connector 3 is inserted into the insertion window 2c of the conductive member 2 and is disposed on the through hole 1a of the circuit board 1. Further, the connecting portion 2 a of the conductive member 2 is in contact with the ground pattern 1 b on the upper surface of the circuit board 1 and is disposed between the upper surface of the circuit board 1 and the lower surface of the connector housing 3 a of the connector 3.

  The press-fitting step (step S2) is a step of press-fitting the connector pin 3b of the connector 3 into the through hole 1a of the circuit board 1 (see FIGS. 4 and 7). In this process, the press-fitting device uses the flat press head T1 and the connector housing of the connector 3 with the circuit board 1, the conductive member 2, and the connector 3 positioned in step S1 disposed on the table T2. The connector pin 3 b of the connector 3 is pressed into the through hole 1 a of the circuit board 1 by pressing from the upper surface side of the circuit board 3 toward the lower surface side of the circuit board 1. As a result, the extension portion 3ba of the connector pin 3b is fitted into the extension portion 1aa of the through hole 1a, and the connector 3 and the circuit board 1 are fixed. At this time, the conductive member 2 has the connecting portion 2a sandwiched between the area of the ground pattern 1b on the upper surface of the circuit board 1 and the lower surface of the connector housing 3a of the connector 3, whereby the conductive member 2 Are fixed to the connector 3 and the circuit board 1.

  In this press-fitting process, in order to prevent the electronic parts of the circuit board 1 and the contacts 3c of the connector 3 from being pressed by the press-fitting device, the electronic parts are covered with a rigid protective cover T3 as shown in FIG. It is desirable to cover and press from the upper surface side of the connector housing 3a of the connector 3 and the lower surface side of the circuit board 1 through the protective cover T3.

  The mounting process (step S3) to the housing 4 is a process of mounting the connector 3, the conductive member 2, and the circuit board 1 thus fixed to the housing 4. In this step, first, the component conveying device conveys the connector 3, the conductive member 2, and the circuit board 1 so that the connector housing 3 a is inserted into the first connector insertion window 4 a of the housing 4. . Then, the component conveying device installs the connector cover 5 so as to cover the connector housing 3 a from the outside of the housing 4. In this state, the fastening device is connected to the opening 4h of the housing 4, the opening 3h of the connector housing 3a, the first opening 2h of the conductive member 2, and the first opening 1h of the circuit board 1. The bolt 6 is inserted from the lower surface side of the circuit board 1, and the bolt 6 is attached to the bolt receiving hole 5 h of the connector cover 5, so that the connector cover 5, the connector 3, the conductive member 2, and the circuit board 1 are attached to the housing 4. Installing.

  In this way, the circuit board 1, the conductive member 2, the connector 3, the housing 4, and the connector cover 5 are assembled, and an electrical signal can be transmitted to and received from the circuit board 1 from the outside of the housing 4 by the connector 3. The electronic device A is manufactured.

  As described above, according to the electronic apparatus A according to the present embodiment, the ground pattern 1 b of the circuit board 1 and the housing 4 can be electrically connected by the conductive member 2. Therefore, even when the straight connector 3 is used as an input / output connector for the circuit board 1, the ground pattern 1b of the circuit board 1 can be attached to the housing 4 with a simple configuration and a simple manufacturing process. The ground potential of the circuit board 1 can be stabilized and the EMC performance can be improved.

  In particular, the conductive member 2 is configured to be sandwiched between the lower surface of the connector housing 3a and the upper surface of the circuit board 1 when the connector pins 3b of the connector 3 are press-fitted into the through holes 1a of the circuit board 1. Yes. Therefore, the conductive member 2 can be simultaneously fixed to the circuit board 1 in the manufacturing process when the straight press-fit connector is attached to the circuit board 1. Therefore, reducing the manufacturing process also contributes to reducing the manufacturing cost.

  Further, according to the electronic apparatus A according to the present embodiment, it is not necessary to provide components such as a harness for electrically connecting the ground pattern 1b and the housing 4 on the circuit board 1, and thus the circuit board. 1 can be further downsized.

(Modification)
Next, an electronic apparatus A according to a modification will be described with reference to FIG.

  FIG. 8 is a front view showing a connection structure between the circuit board 1 and the connector 3 according to a modification. The connection structure between the circuit board 1 and the connector 3 according to the modification is that the screw 7 (fixing member) for fixing the protruding portion 2b of the conductive member 2 to the housing 4 is provided, as shown in FIG. It is different from the connection structure according to the embodiment.

  In this modification, a third opening 2k for inserting the screw 7 is provided in the protruding portion 2b of the conductive member 2, and the inner wall surface of the housing 4 is for screw receiving screwed with the screw 7. Holes (not shown) are provided. The screw 7 is inserted into the screw receiving hole on the inner wall surface of the housing 4 through the third opening 2k of the conductive member 2, and is fastened to the screw receiving hole. . In this state, the screw 7 is fixed so that the protruding portion 2 b of the conductive member 2 is brought into contact with the inner wall surface of the housing 4.

  As described above, according to the electronic apparatus A according to the modification, the protruding portion 2b of the conductive member 2 and the housing 4 are reliably brought into contact with each other, the ground potential of the circuit board 1 is further stabilized, and the EMC performance is improved. It is possible.

(Other embodiments)
In the above embodiment, the first opening 1h for inserting the bolt 6 through the circuit board 1 is provided as a configuration for fixing the circuit board 1 to the connector 3 and the housing 4. However, when priority is given to downsizing the area of the circuit board 1 or enlarging the area of the power supply / signal pattern, the first opening 1h for inserting the bolt 6 into the circuit board 1 is provided. It is desirable to have a configuration that does not provide the Even in such a case, since the connector pin 3b of the connector 3 is fitted in the through hole 1a of the circuit board 1, the circuit board 1 and the connector 3 can be fixed sufficiently firmly.

  Moreover, in the said embodiment, the aspect using a straight type press fit connector was shown as an example of a straight type connector. However, if the connector is a straight type connector, even if a connector other than a press-fit connector is used, the ground pattern 1b of the circuit board 1 can be formed with a simple configuration and a simple manufacturing process as described above. It is possible to electrically connect to the housing 4 to stabilize the ground potential of the circuit board 1 and to improve the EMC performance.

  As mentioned above, although the specific example of this invention was demonstrated in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  At least the following matters will become apparent from the description of this specification and the accompanying drawings.

  A circuit board 1, a housing 4 that houses the circuit board 1, and a circuit board 1 that is mounted so as to face the first surface of the circuit board 1, and connects the circuit board 1 and devices outside the housing 4. A straight connector 3 that can be connected; a connecting portion 2a that is sandwiched between the connector 3 and the first surface of the circuit board 1 and is connected to the ground pattern 1b of the circuit board 1; and the circuit board 1 And a projecting portion 2b that projects in the normal direction of the first surface and electrically connects the housing 4 and the ground pattern 1b of the circuit board 1 via the connecting portion 2a. An electronic device A including the member 2 is disclosed. According to the electronic apparatus A, even when the straight connector 3 is used as an input / output connector for the circuit board 1, the ground of the circuit board 1 can be obtained with a simple configuration and a simple manufacturing process. It is possible to electrically connect the pattern 1b to the housing 4 to stabilize the ground potential of the circuit board 1 and improve the EMC performance.

  In the electronic device A, the connector pin 3b of the connector 3 may be fitted into the through hole 1a of the circuit board 1. According to the electronic device A, the conductive member 2 can be provided without increasing the manufacturing process, which contributes to a reduction in manufacturing cost.

  In the electronic apparatus A, the protruding portion 2b of the conductive member 2 may be a leaf spring. According to this electronic device A, the conductive member 2 and the housing 4 can be brought into contact with each other more reliably by utilizing the elastic deformation of the leaf spring. Therefore, it becomes possible to further stabilize the ground potential of the circuit board 1 and improve the EMC performance.

  Moreover, in this electronic apparatus A, a plurality of the protruding portions 2b of the conductive member 2 may be formed on both sides from the main body portion 2d of the conductive member. According to the electronic device A, it is possible to ensure a large contact area between the conductive member 2 and the housing 4. Therefore, the ground potential of the circuit board 1 can be further stabilized, and further, the heat dissipation characteristics of the circuit board 1 can be improved.

  In the electronic apparatus A, the protruding portion 2 b of the conductive member 2 and the housing 4 may be fixed by a fixing member 8. According to this electronic device A, the conductive member 2 and the housing 4 can be more reliably brought into contact with each other.

  In addition, the circuit board 1, a housing 4 for housing the circuit board 1, and a first surface of the circuit board 1 are mounted so as to face the circuit board 1 and devices outside the housing 4. A straight connector 3 that can be connected, a connection portion 2a that is sandwiched between the connector 3 and the first surface of the circuit board 1 and is connected to the ground pattern 1b of the circuit board 1, and the circuit A protruding portion 2b that protrudes in the normal direction of the first surface of the substrate 1 and electrically connects the housing 4 and the ground pattern 1b of the circuit substrate 1 via the connecting portion 2a. A method of manufacturing an electronic device A comprising a conductive member 2, wherein the connector 3 is a state in which the conductive member 2 is interposed between the connector 3 and the first surface of the circuit board 1. The through hole 1 of the circuit board 1 Connector by forcing pins 3b, discloses a method of manufacturing the electronic device A mounted so as to face the first surface of the circuit board 1 in.

  The electronic apparatus according to the present disclosure can be suitably used for stabilizing the ground potential of the circuit board and improving the EMC performance.

DESCRIPTION OF SYMBOLS 1 Circuit board 2 Conductive member 3 Connector 4 Case 5 Connector cover 6 Bolt
7 screw

Claims (6)

A circuit board;
A housing for housing the circuit board;
A straight connector that is mounted so as to face the first surface of the circuit board, and that allows the circuit board and a device outside the housing to be connected;
The connector is sandwiched between the connector and the first surface of the circuit board, and connects to a ground pattern of the circuit board, and protrudes in the normal direction of the first surface of the circuit board, A conductive member having a protrusion that electrically connects the housing and the ground pattern of the circuit board via the connection portion;
Electronic equipment comprising. The electronic device according to claim 1, wherein a connector pin of the connector is fitted into a through hole of the circuit board. The electronic device according to claim 1, wherein the protruding portion of the conductive member is a leaf spring. The electronic device according to any one of claims 1 to 3, wherein a plurality of the protruding portions of the conductive member are formed on both sides from the main body portion of the conductive member. The electronic device according to claim 1, wherein the protruding portion of the conductive member and the housing are fixed by a fixing member. A circuit board;
A housing for housing the circuit board;
A straight connector that is mounted so as to face the first surface of the circuit board, and that allows the circuit board and a device outside the housing to be connected;
The connector is sandwiched between the connector and the first surface of the circuit board, and connects to a ground pattern of the circuit board, and protrudes in the normal direction of the first surface of the circuit board, A conductive member having a protrusion and a projecting portion that electrically connects the housing and the ground pattern of the circuit board via the connection portion;
An electronic device manufacturing method comprising:
In the connector, the conductive member is inserted between the connector and the first surface of the circuit board, and a connector pin is press-fitted into a through-hole of the circuit board. A method for manufacturing an electronic device to be mounted so as to face the first surface.