JP2015091076A - Electronic component module and method of mounting the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide, for example, an electronic component module that achieves reduction in size, especially thickness.SOLUTION: An electronic component module includes at least one electronic component and a circuit member including electrical wiring of the electronic component, and is mounted on a housing surface of a housing. The electronic components are disposed so as to be electrically connected by the circuit member with terminals being directed to the circuit member in the same direction. The circuit member is disposed so that a surface to which each terminal is connected is perpendicular to the housing surface.

Description

  The present invention relates to an electronic component module, and more particularly to an electronic component module such as a filter circuit of a power supply device including a large electronic component such as a coil or a capacitor.

  With the rapid spread of hybrid vehicles and electric vehicles in recent years, the opportunity to mount a power supply device on a vehicle is increasing. A problem peculiar to mounting a power supply device on a vehicle is that the vehicle is subject to various vibrations during traveling. For example, according to the following Patent Document 1, a part of an electronic component constituting a power supply device is connected to a member in which an electric circuit is insert-molded, and the electronic component is fixed to a case using a fixing adhesive made of silicone resin. Thus, it is described that vibration durability is improved.

JP 2011-003564 A

  Conventionally, in an in-vehicle power supply device mounted on a hybrid vehicle or an electric vehicle, the mounting position of the power supply device is mostly a place where the demand for vibration durability such as a vehicle interior or a frame on a spring is moderate. In the case of mounting in such a place, even a power supply device having the structure shown in Patent Document 1 may have sufficient vibration durability.

  However, under various strict constraints on the mounting position in the vehicle, it may be required to install directly in places where vibration durability is severe, such as transmissions and motors. There is a possibility that a component constituting an electronic component module of the filter circuit of the apparatus is subjected to strong vibration and detached from a member holding the component.

  As one of the measures for improving the vibration durability, there is a reduction in the size of the apparatus, that is, the electronic component module as a whole, or a reduction in thickness (lower profile). Patent Document 1 describes a configuration in which a circuit is soldered or welded to a member in which a circuit is insert-molded with respect to a toroidal-shaped coil, but the positional relationship between the coil and the insert-molded member is in a state of being vertically stacked. And the dimension in the height direction becomes large. This hinders a reduction in the overall height of the device, and as a result, improvement in vibration durability may be limited. Moreover, the terminal of the coil has a lead shape, and when the coil is connected to the insert molding member, the terminal extends in a downward direction. At this time, a space distance for electrical insulation is required downward from the end portion (lead end) of the terminal, and assuming that the insert molding member is fixed to the metal housing, this space for insulation is required. The distance limits the reduction of the overall height dimension of the device.

  The present invention has been made to solve the above-described problems, and provides an electronic component module that is reduced in size, particularly reduced in thickness (lower profile) in an electronic component module including particularly large electronic components. For the purpose. It is another object of the present invention to provide an electronic component module and the like having improved vibration durability along with downsizing and thinning (low profile).

  The present invention includes an electronic component module that includes at least one electronic component and a circuit member that includes electrical wiring of the electronic component, and the electronic component has terminals arranged in the same direction. It arrange | positions so that it may be electrically connected by the said circuit member toward the said circuit member, and the said circuit member is arrange | positioned so that the surface where each said terminal is connected may become perpendicular | vertical with respect to the said housing | casing surface. The electronic component module is characterized by the above.

  According to the present invention, it is possible to provide an electronic component module that is reduced in size, in particular, reduced in thickness (lower profile). In addition, with the miniaturization and thinning (low profile), it is possible to provide an electronic component module with improved vibration durability.

It is an electric circuit diagram of the filter circuit of the power supply device according to the present invention. It is a top view of the electronic component module of the filter circuit of the power supply device by Embodiment 1 of this invention. It is the side view seen from the direction of arrow A of FIG. It is sectional drawing seen from the arrow B along the two-dot broken line C of the electronic component module of FIG. It is sectional drawing seen from the arrow B along the dashed-two dotted line D of the electronic component module of FIG. It is a top view of the electronic component module of the filter circuit of the power supply device by Embodiment 2 of this invention.

  Hereinafter, an electronic component module and the like according to the present invention will be described with reference to the drawings according to each embodiment. In each embodiment, the same or corresponding parts are denoted by the same or corresponding reference numerals, and redundant description is omitted. In the following, the electronic component module according to the present invention will be described by taking the electronic component module of the filter circuit of the power supply apparatus including a large electronic component as an example. However, the present invention is not limited to this, and various Applicable to electronic component modules.

Embodiment 1 FIG.
1 is an electric circuit diagram of a filter circuit of a power supply device according to Embodiment 1 of the present invention. In FIG. 1, the filter circuit of the power supply device is an electronic component comprising an X capacitor 6 (Across the Line Capacitor), Y capacitors 1, 2, 4, 5 (Line Bypass Capacitor), and a common mode choke coil 3. And a P (positive) input terminal 7, an N (negative) input terminal 8, a P side output terminal 9, and an N side output terminal 10a. A portion corresponding to the ground potential of the entire apparatus (that is, an electronic component module: the same applies hereinafter) is indicated by a ground 11.

  In this filter circuit, the P-side input terminal 7 and the N-side input terminal 8 are respectively connected to a plus terminal and a minus terminal of a driving high-voltage battery mounted on a hybrid vehicle or an electric vehicle. As shown in FIG. 1, the Y capacitor 1 is connected between a wiring connected to the P-side input terminal 7 and the ground 11. Similarly, the Y capacitor 4 is connected between the wiring connected to the P-side output terminal 9 and the ground 11. Similarly, the Y capacitor 2 is connected between the wiring connected to the N-side input terminal 8 and the ground 11. Similarly, the Y capacitor 5 is connected between the wiring connected to the N-side output terminal 10 a and the ground 11. The common mode choke coil 3 has a structure in which an enamel-coated wire to be wound is wound around a toroidal core, and has four electrical connection terminals, a P-side input terminal 7, an N-side input terminal 8, The P-side output terminal 9 and the N-side output terminal 10a are connected to each other. The Y capacitors 1, 2, 4, 5 and the common mode choke coil 3 are components for satisfying the electromagnetic environment compatibility (EMC) performance of the entire apparatus including the filter circuit.

  Further, as shown in FIG. 1, the X capacitor 6 is connected between a P-side output terminal 9 and an N-side output terminal 10a. The X capacitor 6 is a component part of the filter circuit of the power supply device connected to suppress fluctuations in the voltage applied to both ends thereof.

  2 is a top view of the electronic component module of the filter circuit of the power supply device according to Embodiment 1 of the present invention, and FIG. 3 is a side view seen from the direction of arrow A in FIG. That is, in FIG. 2, the surface of the paper in FIG. 2 is a mounting surface (housing surface) on which the electronic component module is mounted of the casing 200 (see FIG. 3) of the electronic component module, which is 1 to 6 in FIG. A circuit member 121 on which electronic components (10 to 60) are mounted is provided such that the mounting surface (substrate surface) is perpendicular to the housing surface of the housing 200.

  2 and 3, the electronic component module is an electronic component group including an X capacitor 60, Y capacitors 10, 20, 40, and 50 and a common mode choke coil 30, and an electric circuit wiring is insert-molded with a resin. And a circuit member 121 which is an insert molding member. Regarding the arrangement of the electronic component groups (10 to 60), in FIG. 2 and FIG. 3, the circuit members 121 are mounted on the circuit member 121 in a straight line in a direction along the housing surface. However, the arrangement is not necessarily limited to this arrangement.

  The circuit member 121 is provided with at least one fixing portion 122 having a screw hole or the like for mechanically fixing the circuit member 121 to the metal housing 200.

  Further, the circuit member 121 has an input terminal and an output terminal with exposed metal for electrically connecting an electric wiring circuit (not shown) made of, for example, a bus bar formed inside the circuit member to other circuits. At least one terminal portion 123, 124 is provided. The terminal portion 123 constitutes the P-side input terminal 7 and the N-side input terminal 8 in FIG. 1, and the terminal portion 124 constitutes the P-side output terminal 9 and the N-side output terminal 10a in FIG.

  Further, the circuit member 121 is electrically connected to a metal casing 200 that constitutes a ground portion of the entire apparatus, which constitutes a ground portion of the internal electric wiring circuit, that is, a portion corresponding to the ground 11 in FIG. A grounding portion 125 is provided in which at least one metal for connection is exposed or wiring of an electric wiring circuit is extended.

The fixing part 122, the terminal parts 123 and 124, and the grounding part 125 are in the same direction as the protruding direction of the electrical connection terminals (13, 31, 61) (also simply referred to as terminals) of the electronic components (10 to 60), that is, For example, the circuit member 121 is bent at a right angle from the main body of the circuit member 121 in a direction parallel to the housing surface which is the electronic component module mounting surface of the housing 200 (see FIGS. 4 and 5).
However, each of the fixing portion 122, the terminal portions 123 and 124, and the grounding portion 125 is provided on the circuit member 121, and at least one of them is the same direction as the protruding direction of the terminal of the electronic component (the housing surface). (The direction parallel to the direction).

  In FIG. 3, when the circuit member 121 is viewed from the side opposite to the mounting surface of the electronic components (10 to 60), each X capacitor 60 has two electrical connection terminals 61. It is electrically connected to an electrode 62 provided on the circuit wiring. This connection method is preferably welding in order to obtain high vibration durability, but other connection methods such as soldering may be used depending on the required vibration conditions.

  Each of the Y capacitors 10, 20, 40, 50 has two electrical connection terminals 13 and is electrically connected to the electrodes 12 provided in the electrical circuit wiring in the circuit member 121. The connection method is the same as the X capacitor 60 connection method described above.

  The common mode choke coil 30 has four electrical connection terminals 31 and is electrically connected to an electrode 32 provided in a circuit in the circuit member 121. The connection method is the same as the X capacitor 60 connection method described above.

  The electrical connection terminals (terminals) 61, 31, and 13 of the electronic components are directed to the circuit member 121 in the same direction (a direction parallel to the housing surface that is the electronic component module mounting surface of the housing 200), and the circuit member 121. Furthermore, the circuit member 121 is penetrated, and it protrudes and extends on the opposite side to the electronic component mounting surface of the circuit member 121. This makes it possible to easily obtain a spatial distance G for electrical insulation, which will be described later, without increasing the overall height dimension of the electronic component module, and to suppress the vibration durability of the electronic component. make it easier.

  FIG. 4 is a cross-sectional view of the electronic component module of FIG. The two electrodes 12 of the electric circuit wiring inside the circuit member 121 are electrically connected to the two electric connection terminals 13 of the Y capacitor 20, respectively, and one electrode 12 extends along the casing surface of the casing 200. The grounding portion 125 is bent and extended as described above to expose the metal, and the grounding portion 125 is fixed to the metal casing 200 with an electrical connection by screws.

  5 is a cross-sectional view of the electronic component module of FIG. 2 as viewed from the arrow B of the X capacitor 60 and the fixing portion 122 along the two-dot broken line D. The two electrodes 62 of the electric circuit wiring inside the circuit member 121 are electrically connected to the two electric connection terminals 61 of the X capacitor 60, respectively. The fixing portion 122 is bent and extended so that the resin portion of the circuit member 121 extends along the housing surface of the housing 200 and is mechanically fixed to the metal housing 200 with screws.

  The common mode choke coil 30 is arranged so that the electrical connection terminal 31 is parallel to the surface of the housing 200. Thereby, the dimension of the height direction of the whole electronic component module can be suppressed. This is due to the following reason.

  Of the electronic components constituting the filter circuit of the power supply device, the component having the largest dimension in the height direction is the common mode choke coil 30, and the dimension is the dimension indicated by the symbol F in FIG. In the conventional circuit configuration, the direction indicated by the symbol E in FIG. 2 is arranged in the height direction, and the common mode choke coil 30 and the X capacitor 6 are arranged so as to overlap the insert molding member (corresponding to the circuit member 121) in the vertical direction. The structure to do was common. However, the common mode choke coil 30 generally used in the filter circuit of the power supply device has a dimension indicated by the symbol F (the length in the diameter direction of the link-like coil) that is indicated by the symbol E (the link shape). Smaller than the length of the coil in the height direction + the length of the terminal for electrical connection).

  In this embodiment, the electrical connection terminal is arranged in a direction parallel to the surface of the housing 200 (the housing surface that is the mounting surface of the electronic component module of the housing), and is indicated by the symbol F. A dimension can be arrange | positioned in the height direction of an electronic component module, and the dimension of the height direction of the whole apparatus can be suppressed. Further, in the extending direction from the end of the electrical connection terminal, a spatial distance for electrical insulation (portion indicated by symbol G in FIG. 2) is required. This is indicated by symbol E. When the dimension is arranged in the height direction, the dimension in the height direction can be further increased (the length in the height direction of the link coil + the length of the electrical connection terminal + the spatial distance G)).

  Further, in order to improve vibration durability, the X capacitor 60 may be fixed by a method of pressing against the surface of the housing 200 from above with a pressing spring (not shown), for example. In the case of a conventional structure in which a common mode choke coil and an X capacitor are arranged so as to overlap with an insert molding member (corresponding to a circuit member) in the vertical direction, an electric connection terminal and a housing are disposed below the X capacitor. Since there is a space for electrical insulation, it is difficult to press down with sufficient force to withstand vibration from above. In the case of the configuration as in this embodiment, since the X capacitor 60 and the surface of the housing 200 are in direct contact, such a problem does not occur.

  Further, in this embodiment, the circuit member 121 that is an insert molding member is provided with a fixing portion 122 having a hole for mechanically connecting the circuit member 121 to the housing 200. The fixing portion 122 is integrated with the resin portion of the circuit member 121, and the electric connection terminal 61 of the X capacitor 60 and the electric connection terminal 31 of the common mode choke coil 30 protrude in the installation direction. The same direction as the direction.

  As described above, in the extending direction from the end of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30, the spatial distance for electrical insulation (indicated by the symbol in FIG. 2) (Part indicated by G) is required, but as in this embodiment, the fixed portion 122 is longer than the length obtained by adding the electrical connection terminal 61 or the electrical connection terminal 31 and the distance indicated by the symbol G. By increasing the length (the portion indicated by symbol H in FIG. 2), the advantage that the distance G can be automatically secured is obtained.

  In FIG. 2, the fixing portion 122 is installed only in the same direction as the direction in which the electrical connection terminal 61 and the electrical connection terminal 31 protrude, but the circuit member 121 and the housing 200 are more firmly fixed. Therefore, the additional fixing portion may be installed in a direction different from the same direction as the direction in which the electrical connection terminal 61 and the electrical connection terminal 31 protrude.

  Further, in this embodiment, the circuit member 121 in which the electric circuit wiring is insert-molded with resin has a hole for electrically connecting a metal portion to be a part of the electric wiring circuit to the housing with a screw. A convex grounding portion 125 with a gap is provided. Similarly to the description in the previous section, the installation direction of the grounding portion 125 is the same direction as the direction in which the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30 protrude.

  As described above, in the extending direction from the end of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30, the spatial distance for electrical insulation (indicated by the symbol in FIG. 2) (The part indicated by G) is required, but as in this embodiment, the grounding portion 125 is longer than the length obtained by adding the electrical connection terminal 61 or the electrical connection terminal 31 and the distance indicated by the symbol G. By increasing the length (the portion indicated by symbol I in FIG. 2), an advantage that the distance G can be automatically secured is obtained.

  In this embodiment, the circuit member 121, which is an insert molding member, includes an input terminal and an output terminal with exposed metal for electrically connecting an electric wiring circuit molded therein to an external circuit. Terminal portions 123 and 124 having the above are provided. Similarly to the description in the previous section, the terminal portions 123 and 124 are integrated with the circuit member 121, and the installation direction thereof is the electrical connection terminal 61 of the X capacitor 60 and the electrical connection of the common mode choke coil 30. The direction is the same as the direction in which the service terminal 31 protrudes.

  As described above, in the extending direction from the end of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30, the spatial distance for electrical insulation (indicated by the symbol in FIG. 2) (The portion indicated by G) is required, but as in this embodiment, the terminal portion 123, rather than the length obtained by adding the electrical connection terminal 61 or the electrical connection terminal 31 and the distance indicated by the symbol G, By increasing the length of 124 (the portion indicated by the symbol J in FIG. 2), the advantage that the distance G can be automatically secured is obtained.

  By adopting the configuration as described above, it is possible to install the common mode choke coil 30 in the direction in which the smallest dimension is directed to the height direction of the entire electronic component module, thereby reducing the overall height of the apparatus. it can. As a result, the vibration durability is expected to improve with the low profile.

  In addition, by installing the grounding portion 125 in the same direction as the direction in which the electrical connection terminal 61 and the electrical connection terminal 31 protrude, the end portions of the electrical connection terminal 61 and the electrical connection terminal 31 are automatically provided. Therefore, it is possible to secure the necessary insulation space distance in the extending direction from the center, and it becomes unnecessary to separately secure the insulation distance.

  In addition, by installing the terminal portions 123 and 124 in the same direction as the direction in which the electrical connection terminal 61 and the electrical connection terminal 31 protrude, the electrical connection terminal 61 and the electrical connection terminal 31 are automatically connected. The insulation space distance required in the extending direction from the end can be secured, and it is not necessary to secure the space distance for insulation separately.

Embodiment 2. FIG.
FIG. 6 is a top view of the electronic component module of the filter circuit of the power supply device according to Embodiment 2 of the present invention. In FIG. 6, the entire electronic component module 300 of the filter circuit of the power supply device is installed in, for example, a metal housing 200. The housing 200 includes a wall 201 (a housing surface different from the housing surface that is the mounting surface of the electronic component module of the housing) that is integral with the housing.

  In this embodiment, the entire electronic component module 300 is arranged at a corner in the housing 200, and the protruding direction of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30 Are arranged so that the opposite surface faces the wall 201 of the housing 200 in close proximity. On the other hand, the space in the same direction as the protruding direction of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30 is a space in which any component other than the filter circuit of the power supply device is disposed. It has become.

  As described above, a space distance for electrical insulation is required in the extending direction from the end of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30. Just as you did. Contrary to this embodiment, the surface in the protruding direction of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30 is close to the wall 201 of the housing 200. If they are arranged so as to face each other, it is necessary to provide a space distance for electrical insulation between the electrical connection terminal 61 or the electrical connection terminal 31 and the wall 201. This space can be one of the factors that limit the size reduction of the entire device. As in this embodiment, the surface opposite to the protruding direction of the electrical connection terminal 61 of the X capacitor 60 and the electrical connection terminal 31 of the common mode choke coil 30 is close to the wall 201 of the housing 200. Therefore, the space between the X capacitor 60 and the wall 201 is not necessary, so that the size of the entire apparatus can be reduced.

  By adopting the above-described configuration, a space between the X capacitor 60 and the housing surface that is the mounting surface of the electronic component module of the housing 200 and the wall 201 that is another housing surface is not necessary. The overall size of the apparatus can be reduced.

  1, 2, 4, 5, 10, 20, 40, 50 Y capacitor, 3, 30 common mode choke coil, 6, 60 X capacitor, 7 P side input terminal, 8 N side input terminal, 9 P side output terminal, 10a N side output terminal, 11 ground, 12, 32, 62 electrode, 13, 31, 61 terminal for electrical connection, 121 circuit member, 122 fixing part, 123, 124 terminal part, 125 grounding part, 200 housing, 201 wall 300 The whole electronic component module.

Claims (9)

In an electronic component module that includes at least one electronic component and a circuit member that includes electrical wiring of the electronic component, and is mounted on a housing surface of a housing,
The electronic component is arranged so that the terminals are electrically connected to the circuit member in the same direction with the circuit member, and the surface of the circuit member is connected to the casing surface. An electronic component module, wherein the electronic component module is arranged so as to be perpendicular to the surface.   The electronic component module according to claim 1, wherein a terminal of the electronic component extends through the circuit member so as to protrude to the opposite side.   The circuit member has at least one fixing portion having a hole for screw fixing to the housing surface, and at least one of the fixing portions extends in the same direction as the protruding direction of the terminal of the electronic component. The electronic component module according to claim 2, wherein: The housing has electrical conductivity;
The circuit member includes at least one grounding portion having a screw hole for electrical connection with the housing surface, and at least one of the grounding portions includes a protruding direction of a terminal of the electronic component. The electronic component module according to claim 2, wherein the electronic component module extends in the same direction.   The circuit member has at least one terminal portion for electrical connection with another circuit, and at least one of the terminal portions extends in the same direction as a protruding direction of the terminal of the electronic component. The electronic component module according to any one of claims 2 to 4, wherein the electronic component module is provided.   6. The circuit member according to claim 2, wherein the circuit member is mounted inside the casing, and a side opposite to a protruding direction of the terminal of the electronic component is opposed to the inner surface of the casing. The electronic component module according to any one of claims.   The lengths of the fixing part, the grounding part, and the terminal part are longer than the length of the terminal part that protrudes and extends to the opposite side of the circuit member of the electronic component. The electronic component module according to any one of claims.   8. The electronic component module includes a filter circuit module of a power supply device, and each of the electronic components includes at least one X capacitor, Y capacitor, and common mode choke coil. The electronic component module according to any one of the above. In an electronic component module that includes at least one electronic component and a circuit member that includes electrical wiring of the electronic component, and is mounted on a housing surface of a housing,
The electronic component is disposed such that the terminals are electrically connected to the circuit member in the same direction with the circuit member and extend so as to protrude through the circuit member to the opposite side. A method for mounting an electronic component module, characterized in that a surface to which each terminal is connected is arranged so as to be perpendicular to the housing surface.

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