JP5929827B2 - Electrical equipment - Google Patents

Description

The present invention relates to an electrical equipment device electrical equipment is housed in the case.

  As a conventional electrical device apparatus, an electrical device such as a semiconductor relay is accommodated in an accommodation space formed in the case, a potting agent is filled around the electrical device in the accommodation space, and an opening of the accommodation space is closed with a base Those are known (for example, see Patent Document 1).

  In addition, when using such an electrical device apparatus attached to a vehicle, for example, a rubber attachment member is attached to the case for vibration absorption, and the attachment member is engaged with a vehicle stay or the like. .

JP 2001-7565 A

  However, since the conventional electric device is integrated after the case and the mounting member are formed as separate parts, there is a problem that the number of parts and the number of assembling steps increase.

  In view of the above points, an object of the present invention is to reduce the number of parts and assembly man-hours in an electric device.

In order to achieve the above object, in the first aspect of the present invention, the bottomed cylindrical case is made of rubber and forms a mounting portion (20) and a receiving space (33) that engage with the mounted member (100). A case (2) having a portion (30), an electric device (1) accommodated in the accommodating space, and a potting layer (4) formed by filling a potting agent around the electric device in the accommodating space. The electrical equipment includes a substrate (11), electrical / electronic components (12, 13) mounted on the substrate, one end side joined to the substrate, and the other end protruding outside the potting layer and connected to an external terminal. Terminal (14, 15) made of a conductive metal, a notch (141) is formed in the terminal, a protrusion (34) is formed in the case, and the notch and the protrusion are fitted together. Tami And Le and the case is coupled, and the electric device and a case with the substrate and electrical and electronic parts are not in contact with the casing is characterized in that it is positioned.

  According to this, since the attachment portion and the case portion are integrally formed of rubber, it is possible to reduce the number of parts and the number of assembling steps while ensuring the vibration absorbing function and the function of accommodating the electric device.

  By the way, since the case is made of rubber, the interface between the case and the potting layer is easily peeled off. For example, when the electric device and the case are positioned by connecting the substrate and the case, the potting agent does not rotate around the contact portion between the substrate and the case. Therefore, when the interface between the case and the potting layer is peeled off, a gap is generated between the case and the potting layer, and a gap is also generated between the substrate and the case. Corrosion and short circuit may occur due to foreign material.

  On the other hand, in the invention according to claim 1, since the substrate and the electric / electronic component do not contact the case, the substrate and the electric / electronic component are embedded in the potting layer. Even if the interface is peeled off and moisture or the like enters from the gap between the case and the potting layer, the moisture or the like can be prevented from reaching the substrate and the electric / electronic component.

  In addition, since the terminal is made of metal, the interface between the terminal and the potting layer is difficult to peel off. Therefore, it is possible to prevent moisture and the like from reaching the substrate and the electric / electronic component through the interface between the terminal and the potting layer. it can.

  As a result, it is possible to prevent the occurrence of corrosion and short-circuit due to moisture and metal foreign matter.

In addition, since the terminal and the case are coupled by fitting the notch portion of the terminal and the protruding portion of the case, the electric device is filled until the potting agent is formed around the electric device and the potting layer is formed. And the relative position of the case can be reliably maintained.

In the second aspect of the present invention, the case is made of rubber and includes a mounting portion (20) that engages with the mounted member (100) and a bottomed cylindrical case portion (30) that forms an accommodation space (33). (2), an electric device (1) accommodated in the accommodating space, and a potting layer (4) formed by filling a potting agent around the electric device in the accommodating space. 11) and electrical / electronic components (12, 13) mounted on the substrate, and a terminal made of a conductive metal having one end bonded to the substrate and the other end protruding outside the potting layer and connected to the external terminal. (14, 15) and provided with, in the terminal and the case is coupled, the substrate and electrical and electronic parts in a state not in contact with the case and the electric device and the casing are positioned, the case and terminal, electrostatic Device characterized in that it comprises an engagement portion for regulating the relative movement between the orientation of the case and the electrical device exits the housing space (35,36,38,142,143,145).

  According to this, it is possible to reliably prevent the electric device from coming out of the accommodation space until the potting agent is filled around the electric device and the potting layer is formed.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

(A) is a front view of the electric equipment apparatus which concerns on one Embodiment of this invention, (b) is a right view of (a), (c) is a bottom view of (a). (A) is a bottom view of the electric equipment apparatus of FIG. 1, (b) is AA sectional drawing of (a). It is sectional drawing of the principal part which shows the 1st modification of the electric equipment apparatus which concerns on one Embodiment of this invention. It is sectional drawing of the principal part which shows the 2nd modification of the electric equipment apparatus which concerns on one Embodiment of this invention. (A) is a bottom view which shows the 3rd modification of the electric equipment apparatus which concerns on one Embodiment of this invention, (b) is CC sectional drawing of (a). (A) is a bottom view which shows the 4th modification of the electric equipment apparatus which concerns on one Embodiment of this invention, (b) is DD sectional drawing of (a).

  An embodiment of the present invention will be described. The electric device apparatus of this embodiment is used for energization control of an electric device (not shown) mounted on a vehicle (not shown).

  As shown in FIGS. 1 and 2, the electric device apparatus includes an electric device 1. The electrical device 1 includes a substrate 11, a semiconductor relay 12 that is mounted on the substrate 11 and opens and closes an electric circuit, a capacitor 13 that is mounted on the substrate 11, and is mounted on the substrate 11 and electrically connected to the semiconductor relay 12. The two terminals 14 and 15 are provided. The semiconductor relay 12 and the capacitor 13 correspond to the electric / electronic parts of the present invention.

  The first terminal 14 and the second terminal 15 are made of a conductive metal plate, and one end side is joined to the substrate 11 by soldering, and the other end side is connected to a vehicle side terminal (not shown) as an external terminal. The

  And the 1st terminal 14 is connected to the electric equipment of a vehicle via a vehicle side terminal and wiring (not shown), and the 2nd terminal 15 is a vehicle side terminal and wiring (not shown). Connected to a storage battery (not shown).

  The electric device apparatus includes a case 2 made of rubber (for example, EPDM, NBR, CR). The case 2 has an attachment portion 20 that engages with a stay 100 fixed to the vehicle, and a case portion 30 in which the electric device 1 is accommodated.

  A mounting hole 21 into which the stay 100 is inserted is formed in the mounting portion 20. The stay 100 corresponds to the attached member of the present invention.

  The case portion 30 has a bottomed cylindrical shape by a cylindrical case side wall 31 and a case bottom portion 32 that closes one end side of the case side wall 31, and an accommodation space 33 having an open end is formed inside. . The accommodation space 33 accommodates the electric device 1 and the potting agent 4 is filled around the electric device 1 to form the potting layer 4.

  The potting layer 4 is formed up to the vicinity of the opening in the accommodation space 33, and the entire area of the substrate 11, the semiconductor relay 12, and the capacitor 13 is embedded in the potting layer 4. Further, in the first terminal 14 and the second terminal 15, a portion close to the substrate 11 is embedded in the potting layer 4, and a portion far from the substrate 11 protrudes from the potting layer 4 to the outside.

  In FIG. 1C, the portion of the potting layer 4 is indicated by hatching in order to clarify the range of the potting layer 4.

  Here, the direction B in which the potting layer 4 exits from the accommodation space 33, in other words, the direction B from the case bottom 32 toward the opening of the accommodation space 33 is referred to as a removal direction B.

  The case side wall 31 has a rectangular parallelepiped and plate-like case first protrusion 34 protruding into the accommodation space 33. The case first protrusion 34 extends toward the opening in the accommodation space 33, in other words, extends along the detachment direction B from the inner peripheral surface of the case side wall 31.

  In addition, the first terminal 14 is formed with a terminal first notch 141 that fits into the case first protrusion 34.

  The first terminal 14 and the case 2 are coupled to each other by fitting the case first protrusion 34 and the terminal first notch 141. The fitting portion between the case first protrusion 34 and the terminal first notch 141 is embedded in the potting layer 4.

  Next, a method for manufacturing the electric device will be described.

  First, the electric device 1 and the case 2 are prepared, and then a positioning process and a potting process are performed.

  In the positioning step, the case first protrusion 34 and the terminal first notch 141 are fitted to each other to join the first terminal 14 and the case 2, so that the substrate 11, the semiconductor relay 12, and the capacitor 13 are connected to the case side wall 31 and The electric device 1 and the case 2 are positioned without contacting the case bottom 32.

  Subsequently, in the potting step, the potting layer 4 is formed by filling a potting agent around the electric device 1 in the accommodation space 33. Here, since the potting layer 4 is formed in a state where the substrate 11, the semiconductor relay 12 and the capacitor 13 are not in contact with the case sidewall 31 and the case bottom 32, the substrate 11, the semiconductor relay 12 and the capacitor 13, the case sidewall 31 and the case bottom 32 are formed. The potting agent is reliably turned between the substrate 11, the semiconductor relay 12, and the capacitor 13 are embedded in the potting layer 4.

  In the present embodiment, since the attachment portion 20 and the case portion 30 are integrally formed of rubber, it is possible to reduce the number of parts and the number of assembling steps while securing the vibration absorbing function and the function of housing the electric device 1. it can.

  In addition, since the electrical device 1 is embedded in the potting layer 4 except for a part of the first terminal 14 and the second terminal 15, it is possible to prevent adhesion of moisture and the like to the substrate 11, the semiconductor relay 12, and the capacitor 13. In addition, the base for closing the opening of the accommodation space 33 can be eliminated.

  Further, the potting agent reliably rotates between the substrate 11, the semiconductor relay 12 and the capacitor 13 and the case side wall 31 and the case bottom 32, and the substrate 11, the semiconductor relay 12 and the capacitor 13 are embedded in the potting layer 4. Therefore, even if the interface between the case 2 and the potting layer 4 is peeled off and moisture enters from the gap between the case 2 and the potting layer 4, the moisture etc. reaches the substrate 11, the semiconductor relay 12 and the capacitor 13. Can be prevented.

  Further, since the first terminal 14 and the second terminal 15 are made of metal, the interface between the first terminal 14 and the second terminal 15 and the potting layer 4 is difficult to peel off. It is possible to prevent moisture and the like from reaching the substrate 11, the semiconductor relay 12 and the capacitor 13 through the interface with the layer 4.

  As a result, it is possible to prevent the occurrence of corrosion and short-circuit due to moisture and metal foreign matter.

  Moreover, since the case 1st projection part 34 and the terminal 1st notch part 141 are fitted, and the 1st terminal 14 and the case 2 are couple | bonded, until the potting layer 4 is formed, the electric equipment 1 And the relative position of the case 2 can be reliably maintained.

  In the above embodiment, the case first protrusion 34 is provided on the case side wall 31 and the terminal first notch 141 is provided on the first terminal 14. However, the notch is provided on the case side wall 31 to provide the first terminal. 14 may be provided, and the first terminal 14 and the case 2 may be coupled by fitting the notch portion of the case side wall 31 with the protrusion portion of the first terminal 14.

  Further, the coupling structure of the first terminal 14 and the case 2 in the above embodiment can be variously changed as in the modified examples described below.

  In the first modification shown in FIG. 3, the case second protrusion 35 that protrudes into the accommodation space 33 and extends from the inner peripheral surface of the case side wall 31 along the direction perpendicular to the detachment direction B includes the case side wall. 31 is formed. The first terminal 14 is formed with a terminal second notch 142 that fits into the case second protrusion 35. In addition, the case 2nd protrusion part 35 and the terminal 2nd notch part 142 comprise the engaging part of this invention.

  According to this, it is possible to prevent the first terminal 14 from falling until the potting layer 4 is formed by fitting the case second protrusion 35 and the terminal second notch 142. In addition, the fitting between the case second protrusion 35 and the terminal second notch 142 restricts the relative movement of the electrical device 1 between the electrical device 1 and the electrical device 1 in the removal direction B. It is possible to reliably prevent the electric device 1 from coming out of the accommodation space 33 until 4 is formed.

  In the second modified example shown in FIG. 4, a case recess 36 that is communicated with the accommodation space 33 and that is recessed from the inner peripheral surface of the case side wall 31 along the direction perpendicular to the detachment direction B is formed in the case side wall 31. Has been. The first terminal 14 is formed with a terminal first protrusion 143 that fits into the case recess 36. In addition, the case recessed part 36 and the terminal 1st protrusion part 143 comprise the engaging part of this invention.

  According to this, the first terminal 14 can be prevented from falling until the potting layer 4 is formed by the fitting of the case recess 36 and the terminal first protrusion 143. In addition, the fitting between the case recess 36 and the terminal first protrusion 143 restricts the relative movement between the case 2 and the electric device 1 in which the electric device 1 moves in the detaching direction B, so that the potting layer 4 is formed. In the meantime, it is possible to reliably prevent the electric device 1 from coming out of the accommodation space 33.

  In the third modification shown in FIG. 5, a case groove portion 37 that is a rectangular parallelepiped space communicating with the accommodation space 33 is formed in the case side wall 31. The first terminal 14 and the case 2 are coupled by inserting a part of the first terminal 14 into the case groove portion 37.

  The first terminal 14 is formed with a terminal second protrusion 144 extending toward the case bottom 32 side. The terminal second protrusion 144 is brought into contact with the inner peripheral surface of the case side wall 31 to prevent the first terminal 14 from falling before the potting layer 4 is formed.

  In the 4th modification shown in FIG. 6, the case 3rd projection part 38 and the terminal hole 145 are added with respect to the 3rd modification.

  The case third protrusions 38 provided on the case 2 protrude toward the case groove 37, and two case third protrusions 38 are arranged along the detachment direction B. Two terminal holes 145 provided in the first terminal 14 are arranged along the detachment direction B. The case third projecting portion 38 and the terminal hole 145 constitute an engaging portion of the present invention.

  And while inserting a part of 1st terminal 14 into the case groove part 37 and inserting the case 3rd projection part 38 in the terminal hole 145, the 1st terminal 14 and the case 2 are couple | bonded.

  According to this, since the case third protrusion 38 and the two terminal holes 145 are provided, the first terminal 14 can be more reliably prevented from falling down until the potting layer 4 is formed. The relative position between the electric device 1 and the case 2 can be more reliably maintained.

  In addition, the fitting between the case third protrusion 38 and the terminal hole 145 restricts the relative movement between the case 2 and the electric device 1 in which the electric device 1 moves in the detaching direction B, so that the potting layer 4 is formed. In the meantime, it is possible to reliably prevent the electric device 1 from coming out of the accommodation space 33.

(Other embodiments)
Although the electric device 1 of the said embodiment was provided with the semiconductor relay 12 which opens and closes an electric circuit and was used for the electricity supply control of the electric device for vehicles, the electric device 1 is provided with a microcomputer, a drive circuit, etc. Thus, it may be used for controlling the operation of an electric device for a vehicle. Furthermore, the electrical device 1 may be used for energization control or operation control of electrical devices other than those for vehicles.

  In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably.

  Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible.

  In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Yes.

  Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case.

  Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the component, etc., the shape, unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to the positional relationship or the like.

DESCRIPTION OF SYMBOLS 1 Electric equipment 2 Case 4 Potting layer 11 Board | substrate 12 Semiconductor relay (electrical / electronic component)
13 Capacitors (electrical / electronic parts)
14 Terminal 15 Terminal 20 Mounting portion 30 Case portion 33 Storage space 100 Stay (attached member)

Claims (2)

A case (2) made of rubber and having a bottomed cylindrical case portion (30) that forms a mounting portion (20) that engages the mounted member (100) and a housing space (33);
An electric device (1) housed in the housing space;
A potting layer (4) formed by filling a potting agent around the electric device in the accommodation space;
The electrical device includes a substrate (11), electrical / electronic components (12, 13) mounted on the substrate, one end side joined to the substrate, and the other end projecting outside the potting layer and external terminals. And terminals (14, 15) made of a conductive metal connected to
A notch (141) is formed in the terminal,
A protrusion (34) is formed on the case,
The terminal and the case are coupled by fitting the notch and the protrusion, and the electric device and the case are positioned in a state where the substrate and the electric / electronic component are not in contact with the case. An electrical equipment device characterized by that . A case (2) made of rubber and having a bottomed cylindrical case portion (30) that forms a mounting portion (20) that engages the mounted member (100) and a housing space (33);
An electric device (1) housed in the housing space;
A potting layer (4) formed by filling a potting agent around the electric device in the accommodation space;
The electrical device includes a substrate (11), electrical / electronic components (12, 13) mounted on the substrate, one end side joined to the substrate, and the other end projecting outside the potting layer and external terminals. And terminals (14, 15) made of a conductive metal connected to
The terminal and the case are coupled, and the electric device and the case are positioned in a state where the substrate and the electric / electronic component do not contact the case,
The case and the terminal include an engaging portion (35, 36, 38, 142, 143, 145) for restricting relative movement between the case and the electric device in a direction in which the electric device is pulled out of the housing space. Electrical equipment device characterized by

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