JP2009043610A - Short-circuit prevention mold product and short-circuit prevention method between terminal members, and control device using the mold product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent short circuiting between terminal members by eliminating such deformation of the terminal as may occur at an insertion molding time, and by keeping terminal spacing of the terminal members at an appropriate position. <P>SOLUTION: The inter-terminal-member short-circuit prevention mold product consists of a plurality of terminal members 14 molded from a metal material having conductivity, a resin member 15 molded with a resinous material having insulation, and a hook 16 installed at the resin member 15, in which the plurality of terminal members 14 are engaged by the hook 16 in a direction intersecting with its longitudinal direction and fixed to the resin member 15. Moreover, the terminal members are fitted and fixed to the resin member by fitting grooves installed along their longitudinal direction. Exposed parts of the terminal members are protected by covering the terminal members by over-molding the total peripheral faces or one peripheral face of the inter-terminal-member short-circuit prevention mold product. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a short circuit prevention device and a short circuit prevention method in which terminal members are insulated from each other by fitting a terminal member formed of a metal material and a component formed of a resin material.

Conventionally, in an insert mold product of a terminal member, a technique for preventing a short circuit between the terminal members by overmolding the terminal member after the insert molding has been proposed. For example, Patent Document 1 discloses a method of holding terminal members at appropriate positions by insert molding of terminal members and then overmolding.
JP 7-282912 A

  However, it is not always possible to maintain the distance between the terminal members at an appropriate position at the stage of insert molding the terminal members. Further, when the terminal member itself is slightly bent, the terminal member is molded while being bent, causing a problem that the interval between the terminal members cannot be held at an appropriate position.

  The objective of this invention is providing the molded product which prevents the short circuit between terminal members by keeping the terminal space | interval of a terminal member in an appropriate position, and its method.

In order to solve the above problems, the present invention mainly adopts the following configuration.
A plurality of terminal members formed of a metal material having conductivity, a resin member formed of a resin material having insulating properties, and a hook integrated with the resin member or fixed to the resin member. In this case, the plurality of terminal members are engaged by the hooks and fixed to the resin member from a direction perpendicular to the longitudinal direction.

  Also, a plurality of terminal members formed of a conductive metal material, a resin member formed of an insulating resin material, and a fitting groove provided in the resin member for fitting the terminal member And the plurality of terminal members are fitted by the fitting grooves along the longitudinal direction thereof and fixed to the resin member.

  Moreover, it is a molded product made of a conductive metal material, and comprises a plurality of flat bus bars forming terminal members and a plate plate having insulating properties, and is a molded product for preventing short circuit between terminal members, The flat bus bar is configured so that a rectangular long surface in a cross section orthogonal to the longitudinal direction thereof is in contact with the plate plate, and the bus bar and the plate plate are fixed with an adhesive.

  By adopting such a configuration, there is no need to insert mold the terminal member, the terminal member is fitted into the clip member (hook), and the fitting member is fitted into the fitting groove. By adhering with, the terminal spacing of the plurality of terminals can be maintained at an appropriate position, and a short circuit between the terminal members can be reliably prevented.

  According to the present invention, the terminal interval of the terminal members can be maintained at an appropriate position, and a short circuit between the terminal members can be reliably prevented.

  A terminal member short-circuit prevention molded product according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an arrangement in which a control module connected to a molded product for preventing short circuit between terminal members according to an embodiment of the present invention is applied to a hydraulic control device for an engine transmission. FIG. 2 is a diagram showing a detailed configuration of the hydraulic control device provided with the molded product for preventing short circuit between terminal members and the control module shown in FIG.

  FIG. 3 is a diagram showing a cross section taken along the line A-A in FIG. 2, and is a diagram showing a state where a terminal member and a resin member are overmolded with a terminal member short-circuit prevention molded product engaged with a hook provided on the resin member. is there. FIG. 4 is a perspective view showing a state in which the terminal member and the resin member in the molded product for preventing short circuit between the terminal members according to the present embodiment are engaged by a hook provided on the resin member. FIG. 5 is a view showing a state in which the terminal member short-circuit prevention molded product in which the terminal member and the resin member are fitted in the groove provided in the resin member in the molded product between the terminal members according to the present embodiment is overmolded. . FIG. 6 is a perspective view illustrating a state in which the terminal member and the resin member in the molded product for preventing short circuit between terminal members according to the present embodiment are fitted in a groove provided in the resin member. FIG. 7 is a perspective view showing a state in which the terminal member and the insulating plate in the molded product for preventing short circuit between terminal members according to the present embodiment are fixed with an adhesive.

  FIG. 1 is a view showing a control module in a partial cross section of a hydraulic control device in an engine transmission housing. In FIG. 1, a transmission 2 is connected to an engine 1 of a vehicle, and a rotational force from the engine 1 is transmitted to the transmission 2 side. A hydraulic control device 4 serving as a control device is disposed on the bottom side inside the transmission 2, and the hydraulic control device 4 is used to control switching of a clutch provided in the transmission and the like by hydraulic pressure.

  Further, on the hydraulic control device 4, a control module 3 in which electronic components such as a solenoid valve 5 for actually controlling the hydraulic pressure and a CPU for generating a control signal are molded with resin is fixedly disposed. . The connector of the solenoid valve 5 is connected to the connector 9 of the control module 3 (see FIG. 2).

  Next, details of the hydraulic control device 4 will be described with reference to FIG. The hydraulic control device 4 is connected to a base 8 made of metal (SPCC material) fixed to the housing of the transmission 2, a resin base 7 provided on the metal base 8, and a harness on the vehicle side. Or a plurality of connectors 9 for connecting to the solenoid valve 5, a control module 3 in which a metal terminal 11 is formed protruding from the resin mold part, and the resin base 7 or disposed on the resin base 7. The bus bar 10 connects the connector 9 and the metal terminal 11 of the control module, and the resin mold 12 is an overmolded molded product that prevents a short circuit between the bus bars 10.

  Here, a plurality of connectors 9 provided on the metal base 6 shown in FIG. 2 are connected to wiring from the outside, and these wirings are all concentrated on the control module 3 through the connector 9. And Further, the bus bar 10 protruding from the insulating mold 12 toward the control module 3 is electrically connected to the terminal 11 protruding from the control module 3 by a welded portion 13. Further, the bus bar 10 formed to protrude from the insulating mold 12 to the connector 9 side may be joined to the connector terminal (not shown), and the terminal from the connector 9 side and the control module 3 are made of resin. The base 7 may be joined in the middle of wiring.

  The molded product for preventing short circuit between terminal members according to the embodiment of the present invention is an internal configuration of an insulating mold 12 in which a bus bar for connecting the connector 9 and the control module 3 is overmolded (described later, the molding according to the present embodiment). The product is the assembly before overmolding). The bus bars 10 that electrically connect the connector 9 and the control module 3 need not be short-circuited with each other, and a specific device for that purpose will be described below.

  FIG. 3 is an AA cross section of FIG. 2, and is an example in which three bus bars 14 are wired toward the connector 9. In FIG. 3, the number of the bus bars 14 is an example, and the bus bar 14 shown in FIG. 3 is the same body as the bus bar 10 protruding from the insulating mold 12 shown in FIG. It only shows that it is a bus bar in an insulating mold.

  In FIG. 3, the molded product for preventing short circuit between terminal members according to the embodiment of the present invention includes a resin member 15 formed of an insulating resin, a bus bar 14 disposed on the resin member 15, and a bus bar 14. The hook 16 is integrally formed with the resin member 15 for stopping (the hook 16 may be a separate member from the resin member 15 and may be integrally fixed). The bus bar 14 is made of a conductive metal plate, and is positioned by being fitted to the resin member 15 by a hook 16. The short-circuit prevention molded product 21 (see FIG. 4), which is an integrated assembly composed of the resin member 15, the hook 16, and the bus bar 14, is further overmolded by the overcoat body 17, so that the bus bar (conductive The terminal member of the metal member can be fixed to each other to prevent a short circuit between the terminal members, and the terminal member can be protected from the outside.

  FIG. 4 shows a perspective view of the molded product 21 for preventing short circuit between terminal members according to the embodiment of the present invention. In FIG. 4, in the hydraulic control device 4, the bus bar 14 extended from one carrier 20 is engaged by a pair of hooks 16 erected from a part of a resin member 15 formed of an insulating resin. Is done. The pair of hooks 16, 16 are provided integrally or integrally with the resin member corresponding to the number of bus bars 14 (in a state where the hook is separate from the resin member and fixed to the resin member). Engagement (fitting) is performed, and the terminal intervals of the plurality of terminal members (bus bars) are held at appropriate positions.

  Here, although the arrangement of the pair of hooks is arranged at the position facing the bus bar in the illustrated example, the bus bar may be engaged at two positions different from the facing position. Instead, it may be engaged with a hook only on one side. Furthermore, as a shape of the hook, the entire length of the resin member along the longitudinal direction of the bus bar may be a hook shape. By adopting the structure of the short-circuit prevention molded product as described above, the molded product comprising the resin member 15 molded with an insulating resin and the terminal member (bus bar 14) molded with a conductive metal is A plurality of terminal members do not contact each other.

  4 shows a structure in which the bus bar 14 is fitted into the recess of the resin member 15 and is engaged from both sides by the hook 16. However, the bus bar 14 is engaged by the hook 16 on the planar resin member 15. The structure to match may be sufficient.

  In a molded product in which a resin member 15 formed of an insulating resin material and a plurality of bus bars 14 formed of a conductive metal are engaged, the arrangement of the plurality of bus bars 14 is adjacent to avoid contact. As shown in FIGS. 3 and 4, the bus bars 14 are arranged in parallel on the same plane. In addition to arranging the bus bars in parallel as described above, the bus bars may be arranged in a vertical relationship with each other, or the bus bars may be arranged on the upper and lower planes instead of the same plane. Can be freely combined depending on the number of connectors and the arrangement of connectors. Furthermore, the molded products engaged (fitted) may be combined and arranged in the vertical direction or the horizontal direction, and can be freely combined depending on the application.

  Furthermore, in a molded product obtained by engaging (fitting) a plurality of terminal members 14 formed of a conductive metal with a resin member 15 formed of an insulating resin material, By overmolding one surface with the overcoat body 17, the exposed portions of the plurality of terminal members (bus bars) 14 can be eliminated, and the terminal members 14 can be protected. In addition, the method of protecting the terminal member is not limited to overmolding (covering with a mold and molding), but can be welded by contacting another member made of an insulating member so as to cover the fitted molded product. The terminal can be protected by eliminating the exposed portion of the terminal member 14 by bonding or the like (covering the terminal member without using a mold). Examples of welding and joining methods include, but are not limited to, laser welding, vibration welding, ultrasonic welding, heat welding, and heat caulking.

  It should be noted that at the stage of the molded product in which the resin member 15 and the plurality of terminal members 14 are fitted, or the molded product that has been engaged (fitted) is overmolded, or another member is brought into contact and welded and joined. In the state where the exposed portions of the terminals are eliminated, the carrier 20 that holds the plurality of terminals 14 remains, but this is cut out to obtain a finished product of the short-circuit prevention molded product according to the present embodiment.

  Next, another configuration example of the molded product for preventing short circuit between terminal members according to the embodiment of the present invention will be described below with reference to FIGS.

  A bus bar (terminal member) 14 formed of a conductive metal plate in the hydraulic control device 4 is fitted into a fitting groove 19 provided in a resin member 18 formed of an insulating resin as shown in FIG. The terminal intervals of the plurality of terminal members are held at appropriate positions by contacting and fixing each other. In addition, about the site | part which provides the fitting groove | channel 19, it may extend over the full length of the longitudinal direction of the bus bar 14 (as shown in FIG. 6), and if the bus bar 14 can be fixed, the bus bar 14 is fitted. The fitting groove 19 may be provided only in a part of the bus bar in the longitudinal direction (the other part in the longitudinal direction is not a groove for fitting the bus bar, but a wide concave portion is formed), and is set at a free place depending on the application. be able to. Further, the terminal fixing method at the time of fitting includes press-fitting, an adhesive and the like, but is not limited thereto.

  As described above, the terminal member short-circuit-preventing molded product composed of the resin member 18 formed of an insulating resin and the terminal member 14 formed of a conductive metal is in contact with a plurality of terminal members. There is nothing.

  In a molded product in which a resin member 15 formed of an insulating resin material and a plurality of bus bars 14 formed of a conductive metal are engaged, the arrangement of the plurality of bus bars 14 is adjacent to avoid contact. As shown in FIGS. 3 and 4, the bus bars 14 are arranged in parallel on the same plane. In addition to arranging the bus bars in parallel, the bus bars may be arranged in a vertical relationship with each other, or the bus bars may be arranged on the upper and lower planes instead of the same plane. Can be freely combined depending on the number of connectors and the arrangement of connectors. Furthermore, the molded products engaged (fitted) may be combined and arranged in the vertical direction or the horizontal direction, and can be freely combined depending on the application.

  Furthermore, in a molded product obtained by engaging (fitting) a plurality of terminal members 14 formed of a conductive metal with a resin member 15 formed of an insulating resin material, the entire circumference of the molded product or one By overmolding the portion with the overcoat body 17 (molding in a mold), the exposed portions of the plurality of terminal members (bus bars) 14 can be eliminated, and the terminal member 14 can be protected. In addition, the method of protecting the terminal member is not limited to overmolding, but another member made of an insulating member that can cover the fitted molded product is brought into contact with the terminal member 14 by welding, joining, or the like. The terminal can be protected by eliminating the exposed portion (covering the terminal member without using a mold). Examples of welding and joining methods include, but are not limited to, laser welding, vibration welding, ultrasonic welding, heat welding, and heat caulking.

  In addition, at the stage of the molded product in which the resin member 15 and the plurality of terminal members 14 are fitted, or by overmolding the fitted molded product or bringing another member into contact with each other, welding and joining are performed. In a state in which the carrier 20 is removed, the carrier 20 that holds the plurality of terminals 14 is left, but this is removed to obtain a finished product of the short-circuit prevention molded product according to the present embodiment.

  FIG. 7 shows a method for fixing the flat bus bar 24 to the insulating plate 25 with an adhesive 26 as another configuration example of the molded product for preventing short circuit between terminal members. The adhesive 26 is applied to the surface of the bus bar 24 facing the insulating plate 25, and the bus bars 24 are installed in parallel in the longitudinal direction so that the bus bar 24 is not short-circuited, and the adhesive is fixed. Alternatively, a flat bus bar 24 may be installed in parallel on the insulating plate 25 in advance, and the boundary surface may be fixed with an adhesive 26 so that the installation location of the bus bar 24 is not displaced in the installed state. .

  In the configuration example shown in FIG. 7, when the flat bus bar 24 is fixed to the insulating plate plate 25 with the adhesive 26, both the plate 25 and the bus bar 24 have a flat plate shape. The positioning of the 24 on the plate 25 can be easily performed, and the displacement of the bus bar on the plate is less likely to occur during bonding. That is, the bus bar 24 has a rectangular column shape with a rectangular cross section, and since the surface of the longer side of the rectangle is placed and positioned on the plate-like plate 25, the mutual contact area becomes large (inside the rectangle) Compared with the case where the surface of the shorter side is installed), it is difficult for the position shift at the time of adhesive fixing. 3 and 5 show examples in which the terminal member is a flat-shaped bus bar. However, in these structural examples, the shape of the terminal member is not limited to a flat plate, and any shape of the terminal member can be hooked. The terminal groove is prevented from being displaced by the fitting groove.

  As described above, the embodiment of the present invention has the following configuration in addition to the configuration described in the “Means for Solving the Problems” column, and is characterized by having functions or actions. It is. That is, in the molded product for preventing short circuit between terminal members, the terminal member exposed portion can be covered by overmolding the outer periphery or part of the molded product, and the terminals can be insulated. Furthermore, by protecting the terminal at the terminal member exposed portion, the terminal intervals of the plurality of terminals can be maintained at appropriate positions, and the terminal can be protected at the terminal member exposed portion. In addition, in the molded product for preventing short circuit between terminal members, the same function or action can be obtained by covering the terminal member exposed portion by welding, joining or the like on the outer periphery or part of the molded product and insulating the terminals. be able to.

  Moreover, although the example of a structure which assembles the short circuiting prevention product between terminal members concerning this embodiment to the control module in a control device is shown, in the case of the structure where an insert mold product was assembled like a conventional example, Although a short circuit may occur due to the deformation of the terminals, the terminal interval can be maintained at an appropriate position by fitting the terminal member and the resin member in the above configuration example.

It is a figure which shows the arrangement | positioning which applied the control module linked with the short circuiting prevention product between terminal members which concerns on embodiment of this invention to the hydraulic control apparatus of the engine transmission. It is a figure which shows the detailed structure of the hydraulic control apparatus provided with the short circuiting prevention product between terminal members shown in FIG. 1, and the control module. It is a figure which shows the AA cross section of FIG. 2, Comprising: It is a figure which shows the state which overmolded the short circuit prevention molded product between terminal members which engaged the terminal member member and the resin member with the hook provided in the resin member. It is a perspective view which shows the state which engaged the terminal member and the resin member in the molded article between terminal member short-circuiting which concerns on this embodiment with the hook provided in the resin member. It is a figure which shows the state which carried out the overmolding of the short circuit prevention product between terminal members which fitted the terminal member and resin member in the groove | channel provided in the resin member in the short circuit product between terminal members which concerns on this embodiment. It is a perspective view which shows the state which fitted the terminal member and the resin member in the groove | channel provided in the resin member in the short circuiting prevention product between terminal members which concerns on this embodiment. It is a perspective view which shows the state which fixed the terminal member and the insulating plate in the molded product between short-circuiting between terminal members which concerns on this embodiment with the adhesive agent.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Engine 2 Transmission 3 Control module 4 Hydraulic control apparatus 5 Solenoid valve 7 Resin base 8 Metal base 9 Connector 10 Bus bar (terminal member)
11 Control module terminal 12 Insulation mold 13 Welded part 14 Bus bar (terminal member)
DESCRIPTION OF SYMBOLS 15 Resin member 16 Hook 17 Overcoat body 18 Resin member 19 Fitting groove 20 Carrier 21 Short-circuit prevention product between terminal members 24 Bus bar (terminal member)
25 Insulating plate 26 Adhesive

Claims (12)

A plurality of terminal members formed of a metal material having conductivity, a resin member formed of a resin material having insulating properties, and a hook integrated with the resin member or fixed to the resin member. It is a molded product to prevent short circuit between terminal members,
The plurality of terminal members are fixed to the resin member by being engaged with the hook from a direction orthogonal to the longitudinal direction thereof. A plurality of terminal members formed of a conductive metal material, a resin member formed of an insulating resin material, and a fitting groove provided in the resin member for fitting the terminal member; It is a molded product for preventing short circuit between terminal members,
The plurality of terminal members are fitted in the fitting grooves along the longitudinal direction thereof and fixed to the resin member. In claim 1 or 2,
A molded product for preventing short circuit between terminal members, wherein the entire peripheral surface or one circumferential surface of the molded product for preventing short circuit between terminal members is overmolded to cover the terminal member. In claim 1 or 2,
A molded product for preventing short circuit between terminal members, wherein an insulating material is brought into contact with and welded or joined to the entire circumferential surface or one circumferential surface of the molded product for preventing short circuit between terminal members to cover the terminal member. A molded product made of a conductive metal material, and a plurality of flat-plate bus bars forming a terminal member, and a plate-shaped plate having an insulating property, and a terminal member short-circuit prevention molded product,
The plurality of plate-shaped bus bars are installed so that a rectangular long surface in a cross section perpendicular to the longitudinal direction thereof is in contact with the plate plate, and the bus bar and the plate plate are fixed with an adhesive. A molded product that prevents short circuit between terminal members.   The exposed portion of the terminal member is covered by overmolding on the entire outer surface or one outer surface of the molded product for prevention of short circuit between terminal members according to any one of claims 1 to 5. A molded product for preventing short circuit between terminal members.   The exposed portion of the terminal member is covered by welding or bonding of the insulating material on the entire outer surface or one outer surface of the short circuited molded product between terminal members according to any one of claims 1 to 5. A molded product for preventing short circuit between terminal members. A plurality of terminal members molded from a conductive metal material; a resin member molded from an insulating resin material; and a hook integrated with or fixed to the resin member. ,
The terminal member, wherein the plurality of terminal members are engaged by the hooks from a side perpendicular to the longitudinal direction of the terminal member, and the terminal members are fixed to the resin member to insulate the terminal members. How to prevent short circuit. A plurality of terminal members formed of a conductive metal material, a resin member formed of an insulating resin material, and a fitting groove provided in the resin member for fitting the terminal member; With
The plurality of terminal members are fitted along the longitudinal direction by the fitting groove, and the terminal members are fixed to the resin member to insulate the terminal members from each other. Method. In claim 8 or 9,
After fixing the said terminal member to the said resin member, the exposed part of the said terminal member is covered by overmolding. The short circuit prevention method between terminal members characterized by the above-mentioned. In claim 8 or 9,
After fixing the said terminal member to the said resin member, the exposed part of the said terminal member is covered by welding or joining an insulating material. The short circuiting method between terminal members characterized by the above-mentioned.   The control in which the short-circuit prevention product between terminal members according to any one of claims 1 to 7 is assembled by connecting terminals to a control module in which an electronic component including a CPU is resin-molded. apparatus.

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