KR20140044732A - Mold for molding, manufacture method of resin molded article using the same and resin molded article - Google Patents

Abstract

An object of the present invention is to provide a die for molding, a method for manufacturing a resin molded article using same, and a resin molded article, the die being capable of easily positioning and holding a bent portion of a terminal inside cavities of first and second dies, and also reducing a resin molded article in size. To this end, the die for molding according to the present invention includes first and second dies (10, 20) having cavities (C1) in which at least a bent portion (220a) of a terminal (200a) can be received. The first die 10 has a convex part (11) contacting a first side (221a) of the bent portion (220a), and protrusions (13a) provided on the convex part (11) at certain intervals. The protrusion 13a has a first edge (13a1) which is disposed proximate to the protrusion (13a) and can be brought into contact with a second side (222a) opposite to the first side (221a); a second edge (13a2) disposed at a front tip of the protrusion (13a); and a slope (13a3) which is inclined to be distanced from the convex part (11) in the range of the first edge (13a1) to the second edge (13a2).

Description

Mold for molding, manufacturing method of resin molded article using the same and resin molded article {MOLD FOR MOLDING, MANUFACTURE METHOD OF RESIN MOLDED ARTICLE USING THE SAME AND RESIN MOLDED ARTICLE}

The present invention relates to a molding die, a method for producing a resin molded article using the same, and a resin molded article.

The conventional resin molded article has a body and a terminal. The body has a base, an annular side wall formed on the base, and a partition portion formed on the base. The partition portion partitions the inner space of the side wall into first and second spaces. The terminal has a frame connecting the first, second, third and fourth fragment portions and the first, second, third and fourth fragment portions. The distal end portion of the first section portion is embedded in the partition portion so that its cross section is exposed to the first space. The distal end portion of the second section portion is embedded in the partition portion so that its cross section is exposed to the second space. The third section portion is embedded in the side wall so that its cross section is exposed to the first space. The fourth section portion is embedded in the side wall so that its cross section is exposed to the second space.

The resin molded article is manufactured as follows. Between the inner surface of the first convex portion of the first mold and the convex portion of the second mold, and the proximal end of the second cut portion the inner surface of the second convex portion of the first mold and the convex portion of the second mold. While sandwiching and holding, the distal end portions of the first and second sections and the third and fourth sections are arranged inside the cavity of the first and second molds. After that, the insulating resin is injected into the cavity and cured. The insulating resin becomes the body, and the first and second convex portions of the first mold form the first and second spaces of the body. The distal end portion of the first and second cut portions of the terminal is embedded in the partition portion of the body, and the third and fourth cut portions of the terminal are embedded in the side wall of the body. Thereafter, the first, second, third and fourth sections are separated from the frame.

[Patent Document 1] Japanese Patent Application Laid-Open No. 07-099016

The base end portions of the first and second cut portions are held in the cavity by being held by the first and second molds. That is, since the 1st, 2nd cutting part for positioning and holding a 3rd, 4th cutting part inside a cavity is indispensable, a terminal becomes large. Therefore, it was difficult to miniaturize the resin molded article.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to easily position and hold a fragment of a terminal inside a cavity of a first and a second mold, and to further reduce the size of a resin molded article. It is possible to provide a molding die, a method for producing a resin molded article using the same, and a resin molded article.

In order to solve the said subject, the shaping | molding die of this invention is equipped with the 1st, 2nd mold which has a cavity which can accommodate at least the cutting part of a terminal. The said 1st mold has the convex part which can contact | connect the 1st surface of the said cutting | disconnection part, and the protrusion formed in the said convex part at intervals. The projection is an edge of the base side of the projection, and a first edge that can contact the second surface opposite to the first surface of the cutout portion, a second edge that is an edge of the tip side of the projection, It has an inclined surface or a curved curved surface inclined so as to be interposed from the convex portion from the first edge to the second edge.

In the case of the molding die of this type, the first surface of the cutting portion of the terminal is brought into contact with the convex portion of the first mold and the second surface of the cutting portion is in contact with the first edge of the projection of the first mold. As a result, the cut piece is held by the convex portion of the first mold and the first edge of the protrusion, so that the cut piece of the terminal can be easily positioned and held in the cavity in the first and second molds. Further, since the sectioned portion is held by the convex portion of the first mold and the first edge of the projection, it is possible to suppress the terminal from moving or deforming due to the injection pressure when the resin is injected into the cavity. In addition, it is not necessary to separately form a portion in the terminal for positioning and holding the sectioned portion inside the cavity of the first and second molds. For this reason, since a terminal does not become large, a resin molded article can be miniaturized. Further, since the sectioning portion is guided between the convex portion of the first mold and the first edge of the projection by the inclined or curved surface, the sectioning portion can be easily inserted between the convex portion of the first mold and the first edge of the projection. have. Further, the inclined surface of the projection is inclined so as to be interposed from the cut-out portion. Or the curved surface of a processus | curve is curved so that it may interpose from a cut-out part. That is, since a space forming a part of the cavity is formed between the second surface of the cutout portion and the inclined surface of the protrusion or the curved surface, the resin can be introduced into the space. Therefore, the second surface can be embedded in the resin even though the second surface of the section portion is brought into contact with the projection.

The first and second molds can be configured to accommodate the terminal body of the terminal, the terminal body of the terminal, and the cut-out portion that is folded and bent with respect to the terminal body in the cavity.

In the case of the molding die of such a form, since the cutout portion is bent at a right angle to the terminal body and bent, it is easy to be affected by the injection pressure when injecting the insulating resin into the cavity. However, since the cutting portion is held by the convex portion and the first edge of the projection, the cutting portion of the terminal can be suppressed from moving or deforming by the injection pressure.

The first and second molds can be configured to accommodate the terminal body inside the cavity and to hold the terminal body partially.

 In the case of the molding die of such a form, since the first and second molds hold the terminal body inside the cavity, the terminal can be moved or deformed by the injection pressure when the resin is injected into the cavity. Can be further suppressed.

The manufacturing method of the resin molded article of this invention is a method of manufacturing a resin molded article using the said metal mold | die. The method includes inserting a section of a terminal between the projection and the projection of the first mold, the first surface of the section and the projection and the second surface of the projection and the first edge of the projection. By contact | connecting, the said fragment part is hold | maintained in the said convex part and the said 1st edge. In this state, the first and second molds are closed by a mold, and at least the cutout portions of the terminals are disposed inside the cavity of the first and second molds. The insulating resin is injected into the cavity, cured, and the cut portion is embedded in the insulating resin.

According to the manufacturing method of such a form, only the intercepting part of a terminal is inserted between the convex part of a 1st mold, and a protrusion, and a fragment part is hold | maintained by the 1st edge of a convex part of a 1st mold, and a protrusion. Therefore, the intercepting part of the terminal can be easily positioned and held in the cavity in the first and second molds. Further, since the sectioned portion is held by the convex portion of the first mold and the first edge of the projection, it is possible to suppress the terminal from moving or deforming due to the injection pressure when the resin is injected into the cavity. Moreover, it is not necessary to form the site | part in a terminal for positioning and holding a cut part in the cavity of a 1st, 2nd mold. For this reason, since a terminal does not become large, a resin molded article can be miniaturized. In addition, the insulating resin injected into the cavity flows into the space between the second surface of the section portion and the inclined surface or curved surface of the projection. For this reason, the second surface can be embedded in the resin even though the second surface of the sectioning portion is brought into contact with the projection.

When the cutout portion of the terminal is disposed inside the cavity of the first and second molds, the cutout portion which is connected to the terminal body of the terminal and the terminal body and is bent relative to the terminal body, is inside the cavity. It is possible to deploy.

In the case of the manufacturing method of this aspect, since the section part is bent and folded at approximately right angles with respect to the terminal body, it is easy to be affected by the injection pressure when injecting the insulating resin into the cavity. However, since the cutting portion is held by the convex portion and the first edge of the projection, it is possible to suppress the cutting portion of the terminal from moving or deforming by the injection pressure.

 The first and second molds can accommodate the terminal body inside the cavity and hold the terminal body partially.

According to this type of manufacturing method, since the terminal body is held in the first and second molds inside the cavity, the terminal is moved or deformed by the injection pressure when the resin is injected into the cavity. It can be suppressed.

The resin molded article of the present invention includes a terminal and a body. The terminal has a slice portion. The section portion has a first surface and a second surface opposite to the first surface. The body has a base, a side wall mounted on the base and having a wall surface, and a recess formed in the side wall. The section portion is embedded in the side wall such that the first surface is exposed from the wall surface of the side wall. The concave portion is an edge of the opening side of the concave portion, and further includes a first edge which is in contact with the second surface of the cutout portion, a second edge which is an edge of the bottom side of the concave portion, and the second edge from the first edge. It has an inclined surface or a curved curved surface that is inclined to intervene from the intercept portion up to the edge.

In the case of the resin molded article of such a form, the first surface of the cutout portion of the terminal is exposed from the wall surface of the side wall of the body. The second surface of the section portion is in contact with the first edge of the recess of the body. Accordingly, the convex portion of the first mold can be brought into contact with the first surface of the section portion, while the first edge of the projection of the first mold for forming the concave portion can be brought into contact with the second surface of the section portion. That is, since the intercepting portion can be held between the convex portion of the first mold and the first edge of the protrusion, the intercepting portion of the terminal can be easily positioned and held within the cavity in the first and second molds. . In addition, since the sectioned portion can be held by the convex portion of the first mold and the first edge of the projection, it is possible to suppress the operation or deformation of the terminal by the injection pressure when the resin is injected into the cavity. In this way, since the section is held between the convex portion of the first mold and the first edge of the projection, it is necessary to provide a portion for positioning the section within the cavity of the first and second molds. There is no. For this reason, since a terminal does not become large, a resin molded article can be miniaturized. Further, the inclined surface of the concave portion of the body is inclined so as to be interposed from the cutting portion from the first edge to the second edge. Alternatively, the curved surface of the concave portion of the body is curved so as to be interposed from the cutting portion from the first edge to the second edge. For this reason, the second surface can be embedded in the body even though the second surface of the cutout portion is brought into contact with the projection of the first mold.

The terminal can be configured to additionally have a terminal body embedded in the base. The said cutting part is connected with the said terminal body, and it can be set as the structure which was bent and folded with respect to the said terminal body.

The body can be configured to further include a storage space partitioned by the side walls. The side wall can be a wall surface toward the accommodation space.

According to the present invention, the cutout portion of the terminal can be easily positioned and maintained inside the cavity of the mold, and the size of the terminal and the size of the resin molded product can be reduced.

1A is a perspective view of a resin molded article according to an embodiment of the present invention, as seen from the front, planar and right side thereof.
1B is a perspective view of the resin molded article seen from the back, bottom and right sides thereof.
2A is a bottom surface of the resin molded article.
FIG. 2B is a bottom surface of the resin molded article, showing a portion embedded in the body of the terminal. FIG.
Fig. 2C is a bottom surface of the body and the terminal of the resin molded article, showing a portion embedded in the body of the terminal.
3A is a cross-sectional view taken along line 3A-3A in FIG. 1A of the resin molded article.
3B is a cross-sectional view taken along line 3B-3B in FIG. 2A of the resin molded article.
3C is a cross-sectional view taken along 3C-3C in FIG. 1A of the resin molded article.
4 is a perspective view showing the front, flat and right side surfaces of the terminal of the resin molded article.
Fig. 5 is a perspective view showing from the front, the plane and the right side of the sealing portion of the resin molded article.
6A is a view showing a step of the method for producing a resin molded article, showing a cross section corresponding to FIG. 3A.
It is a figure which shows the process of the manufacturing method of the said resin molded article, and is a figure which shows the cross section corresponding to FIG. 3b.
6C is a view showing a step of the method for producing a resin molded article, showing a cross section corresponding to FIG. 3C.

EMBODIMENT OF THE INVENTION Hereinafter, the resin molded article which concerns on the Example of this invention is demonstrated, referring FIGS. 1A-6C. The resin molded article shown in FIGS. 1A and 1B includes a body 100, terminals 200a, 200b, and 200c, and a sealing unit 300. Hereinafter, each structural requirement of the said resin molded article is demonstrated in detail. 1A and 1B, the 1st direction Y is the longitudinal direction of a resin molded article, the 2nd direction X is the width direction of a resin molded article, and the 3rd direction Z is the thickness direction of a resin molded article. The second direction X intersects the first direction Y at right angles, and the third direction Z intersects the first, second directions Y, X at right angles.

The body 100 is a molded article made of an insulating resin, as shown in Figs. 1A to 3C. The body 100 includes a base 110, side walls 120, recesses 130a, 130b, and 130c (this corresponds to recesses in the body of the claims), and recesses 140 And the convex portion 150. The base 110 has a first surface 111 and a second surface 112 opposite to the first surface 111. At the peripheral edge of the first surface 111 of the base 110, an annular side wall 120 is provided. On the central part of the circular part of the 1st surface 111 of the base 110, the columnar convex part 150 is provided upright. By the base 110, the side wall 120, and the convex part 150, the recessed accommodating space S is partitioned. The side wall 120 has the wall surface 121 of the accommodating space S side, and the wall surface 122 of the opposite side.

The recessed part 140 is formed in the 2nd surface 112 of the base 110 as shown to FIGS. 1B-3C. The recessed part 140 has the central part 141 and the some branch part 142. As shown in FIG. The central portion 141 is a substantially truncated conical portion, as shown in FIGS. 3A and 3B. The branch portion 142 is an elongated recess, which extends radially from the central portion 141. The length dimension of the branch portion 142 is the length dimension of the terminal body 210a described later of the terminal 200a. Smaller than The width dimension of the branch portion 142 is smaller than the width dimension of the terminal body 210a.

As shown in FIGS. 2B to 3C, the terminal 200a is embedded in the base 110 and the side wall 120. The terminal 200b is embedded in one of the second directions X of the terminal 200a of the base 110 as shown in FIGS. 2B to 3C. The terminal 200c is embedded in the other side of the terminal 200a of the base 110 in the second direction X. As shown in FIG.

 The terminal 200a is a metal plate. As shown to FIGS. 2B-4, the terminal 200a has the terminal body 210a, the cut-out parts 220a, 230a, 240a, and the connection part 250a, 260a. The terminal body 210a has a first surface 211a and a second surface 212a opposite thereto. The terminal body 210a has a first surface 211a partially exposed from the first surface 111 of the base 110, and the second surface 212a has a recess 140 of the base 110. It is embedded in the base 110 so as to partially expose from the branch portion 142 of the. The exposed portion of the first surface 211a of the terminal body 210a is disposed around the convex portion 150.

The section portion 220a is a plate which is connected to one end portion in the longitudinal direction of the terminal body 210a and is bent at a right angle to the terminal body 210a. The cut part 220a has the 1st surface 221a and the 2nd surface 222a on the opposite side. The cut part 220a is embedded in the side wall 120 so that the first surface 221a is exposed from the wall surface 121 of the side wall 120. Specifically, the other end part of the 1st surface 221a in the 3rd direction is embedded in the side wall 120, and parts other than the said end part of the 1st surface 221a are the wall surface 121 of the side wall 120 Exposed from The cut part 220a is located between the accommodating space S and the recessed part 130a mentioned later.

The cutout portion 230a is a plate that is connected to one end portion in the width direction of the terminal body 210a and is bent at a right angle to the terminal body 210a. The cutout portion 230a has a first surface 231a and a second surface 232a opposite thereto. The cutout portion 230a is embedded in the side wall 120 so that the first surface 231a is exposed from the wall surface 121 of the side wall 120. Specifically, the other end of the first surface 231a in the third direction is embedded in the side wall 120, and portions other than the end of the first surface 231a are wall surface 121 of the side wall 120. Exposed from The sectioning part 230a is located between the accommodating space S and the recessed part 130b mentioned later.

The section portion 240a is a plate that is connected to the other end portion in the width direction of the terminal body 210a and is bent at a right angle to the terminal body 210a. The cut part 240a has the 1st surface 241a and the 2nd surface 242a on the opposite side. The cutout portion 240a is embedded in the side wall 120 so that the first surface 241a is exposed from the wall surface 121 of the side wall 120. Specifically, the other end part of the 1st surface 241a in the 3rd direction is embedded in the side wall 120, and parts other than the said end part of the 1st surface 241a are the wall surface 121 of the side wall 120 Exposed from The cut part 240a is located between the accommodating space S and the recessed part 130c mentioned later. The cutting part 230a and the cutting part 240a oppose each other, and also face in the direction orthogonal to the cutting part 220a.

The connection part 250a is connected with one side of the 1st direction Y of the cutting | disconnection part 230a which is the width direction one end part of the terminal body 210a, and is extended to one side of the 2nd direction X. As shown in FIG. Portions other than the tip end of the connecting portion 250a are embedded in the base 110. The distal end of the connecting portion 250a protrudes from the outer surface of the base 110. The distal end portion of the connecting portion 250a is folded and bent such that its lower surface is approximately the same height as the second surface 112 of the base 110. The connection part 260a is connected with one side of the 1st direction Y of the cutting | disconnection part 240a which is the other end part of the width direction of the terminal body 210a, and extends to the other side of the 2nd direction X. As shown in FIG. Portions other than the distal end of the connecting portion 260a are embedded in the base 110. The distal end of the connecting portion 260a protrudes from the outer surface of the base 110. The distal end portion of the connecting portion 260a is folded and bent such that its lower surface is approximately the same height as the second surface 112 of the base 110.

 The terminal 200b is a metal plate. As shown to FIG. 2B-FIG. 4, the terminal 200b has the terminal main body 210b and the connection part 220b. The terminal body 210b has a first surface 211b and a second surface 212b opposite thereto. The terminal body 210b has a first surface 211b partially exposed from the first surface 111 of the base 110, and the second surface 212b has a recess 140 of the base 110. It is embedded in the base 110 so as to partially expose from the branch portion 142 of the. An exposed portion of the first surface 211b of the terminal body 210b is disposed around the convex portion 150. The connecting portion 220b is connected to one end of the terminal body 210b in the first direction Y and extends in the second direction X. As shown in FIG. Portions other than the distal end of the connecting portion 220b are embedded in the base 110. The distal end of the connecting portion 220b protrudes from the outer surface of the base 110. The distal end portion of the connecting portion 220b is folded and bent such that its lower surface is approximately the same height as the second surface 112 of the base 110.

The terminal 200c is a metal plate. As shown to FIG. 2B-FIG. 4, the terminal 200c has the terminal main body 210c and the connection part 220c. The terminal body 210c has a first surface 211c and a second surface 212c opposite thereto. The terminal body 210c has a first surface 211c partially exposed from the first surface 111 of the base 110, and the second surface 212c has a recess 140 of the base 110. It is embedded in the base 110 so as to partially expose from the branch portion 142 of the. The exposed portion of the first surface 211c of the terminal body 210c is disposed around the convex portion 150. The connecting portion 220c is connected to one end of the terminal body 210c in the first direction Y and extends in the second direction X. As shown in FIG. Portions other than the tip end of the connecting portion 220c are embedded in the base 110. The distal end of the connecting portion 220c protrudes from the outer surface of the base 110. The distal end portion of the connecting portion 220c is folded and bent such that its lower surface is approximately the same height as the second surface 112 of the base 110.

As shown in FIG. 1A and FIG. 3A, the recessed part 130a is formed in one side of the 1st direction Y of the cut-out part 220a of the terminal 200a of the side wall 120. As shown to FIG. Concave portions 130b are formed in one of the second directions X of the intercepting portions 230a of the terminal 200a of the side wall 120, as shown in FIGS. 1A and 3C. The recessed part 130c is formed in the other one of the cut-out part 240a of the terminal 200a of the side wall 120 in the 2nd direction X as shown to FIG. 1A and FIG. 3C.

 The recessed part 130a is an elongate recessed part extended in the 2nd direction X, as shown to FIG. 1A. The dimension of the 2nd direction X of the recessed part 130a is smaller than the dimension of the 2nd direction X of the cut-out part 220a. As shown to FIG. 3A, the recessed part 130a has the 1st edge 131a, the 2nd edge 132a, and the inclined surface 133a. The inclined surface 133a is an inner wall surface of the cutout portion 220a side of the recess 130a. The first edge 131a is an edge of the opening side (one side in the third direction Z) of the recess 130a of the inclined surface 133a. The first edge 131a is in contact with the second surface 222a of the sectioning portion 220a. The second edge 132a is an edge of the bottom side (the other side in the third direction Z) of the recess 130a of the inclined surface 133a. The inclined surface 133a is inclined so as to be interposed from the cutting part 220a from the first edge 131a to the second edge 132a. For this reason, the substantially whole area | region of the 2nd surface 222a of the cut-out part 220a is embedded in the side wall 120. As shown in FIG.

The recessed part 130b is an elongate recessed part extended in the 1st direction Y, as shown to FIG. 1A. The dimension of the 1st direction X of the recessed part 130b is smaller than the dimension of the 1st direction Y of the fragment part 230a. The recessed part 130b has the 1st edge 131b, the 2nd edge 132b, and the inclined surface 133b, as shown to FIG. 3C. The inclined surface 133b is an inner wall surface of the cutout portion 230a side of the recess 130b. The first edge 131b is an edge of the opening side (one side in the third direction Z) of the recess 130b of the inclined surface 133b. The first edge 131b is in contact with the second surface 232a of the cutout portion 230a. The second edge 132b is an edge of the bottom side (the other side in the third direction Z) of the recess 130b of the inclined surface 133b. The inclined surface 133b is inclined so as to be interposed from the cutout portion 230a from the first edge 131b to the second edge 132b. For this reason, the substantially whole area | region of the 2nd surface 232a of the cutout part 230a is embedded in the side wall 120. As shown in FIG.

The recessed part 130c is an elongate recessed part extending in the 1st direction Y, as shown to FIG. 1A. The dimension of the 1st direction Y of the recessed part 130c is smaller than the dimension of the 1st direction Y of the cut-out part 240a. The recessed part 130c has the 1st edge 131c, the 2nd edge 132c, and the inclined surface 133c, as shown to FIG. 3C. The inclined surface 133c is an inner wall surface of the cutout portion 240a side of the recessed portion 130c. The first edge 131c is an edge of the opening side (one side in the third direction Z) of the recess 130c of the inclined surface 133c. The first edge 131c is in contact with the second surface 242a of the cutout portion 240a. The second edge 132c is an edge of the bottom side (the other side in the third direction Z) of the recess 130c of the inclined surface 133c. The inclined surface 133c is inclined so as to be interposed from the cutting part 240a from the first edge 131c to the second edge 132c. For this reason, the substantially whole area | region of the 2nd surface 242a of the cut-out part 240a is embedded in the side wall 120. As shown in FIG.

The sealing part 300 is filled in the recessed part 140 as shown to FIGS. 1B-2B, 3A-3C, and 5, and is fixed to the body 100 and the terminals 200a, 200b, 200c. Insulating resin. The sealing portion 300 has a central portion 310 and a plurality of branch portions 320. 3A and 3B, the central part 310 is a substantially truncated cone, and is filled in the central part 141 of the recessed part 140. As shown in FIG. The branch portion 320 is an elongated protruding stem that extends radially from the central portion 310 and is filled in the branch portion 142 of the concave portion 140. Some of the branch portions 320 of the branch portions 320 are fixed to the body 100 and the terminal body 210a of the terminal 200a. Among the branch portions 320, the plurality of other branch portions 320 are fixed to the body 100, the terminal body 210a of the terminal 200a, and the terminal body 210b of the terminal 200b. Among the branch portions 320, the remaining plurality of branch portions 320 are fixed to the body 100, the terminal body 210a of the terminal 200a, and the terminal body 210c of the terminal 200c.

Hereinafter, the 1st, 2nd shaping | molding die used in manufacturing the resin molding mentioned above is demonstrated, referring FIGS. 6A-6C. The first molding die has first and second molds 10 and 20. The second molding die has third and fourth molds 30 and 40.

The 1st mold 10 has the convex part 11, the recessed part 12, the protrusions 13a, 13b, and 13c, and the spool 14. As shown in FIG. The convex part 11 is a shape corresponding to the shape of the accommodating space S of the resin molded body 100. The recessed part 12 is formed around the convex part 11, and has the shape corresponding to the external shape of the side wall 120 of the body 100. As shown in FIG. The spool 14 is formed in the convex part 11.

As shown to FIG. 6A, the projection 13a is formed in the bottom surface of the recessed part 12 at intervals in one side of the 1st direction Y from the convex part 11. As shown in FIG. The projection 13a has a shape corresponding to the recess 130a of the body 100. That is, the projection 13a is an elongated protruding stem extending in the second direction X. The projection 13a has a first edge 13a1, a second edge 13a2, and an inclined surface 13a3. The inclined surface 13a3 is a surface of the convex portion 11 side. The 1st edge 13a1 is an edge of the base side of the processus | protrusion 13a of the inclined surface 13a3. The distance between the first edge 13a1 and the convex portion 11 is the distance from the first surface 221a of the section portion 220a to the second surface 222a (that is, the thickness dimension of the section portion 220a). Is approximately the same as The second edge 13a2 is an edge of the tip end side of the protrusion 13a of the inclined surface 13a3. The inclined surface 13a3 is inclined so as to be interposed from the convex part 11 from the 1st edge 13a1 to the 2nd edge 13a2.

As shown to FIG. 6C, the projection 13b is formed in the bottom surface of the recessed part 12 at intervals in one side of the 2nd direction X from the convex part 11. As shown in FIG. The protrusion 13b has a shape corresponding to the recess 130b of the body 100. In other words, the protrusion 13b is an elongated protruding stem extending in the first direction Y. As shown in FIG. The protrusion 13b has a first edge 13b1, a second edge 13b2, and an inclined surface 13b3. The inclined surface 13b3 is a surface of the convex portion 11 side. The first edge 13b1 is an edge of the base side of the protrusion 13b of the inclined surface 13b3. The distance between the first edge 13b1 and the convex portion 11 is the distance from the first surface 231a to the second surface 232a of the section portion 230a (that is, the thickness dimension of the section portion 230a). Is approximately the same as The second edge 13b2 is an edge on the tip end side of the protrusion 13b of the inclined surface 13b3. The inclined surface 13b3 is inclined so as to be interposed from the convex part 11 from the 1st edge 13b1 to the 2nd edge 13b2.

As shown to FIG. 6C, the projection 13c is formed in the bottom surface of the recessed part 12 at the other side of the convex part 11 in the 2nd direction X at intervals. The projection 13c has a shape corresponding to the recess 130c of the body 100. That is, the projection 13c is an elongated protruding stem extending in the first direction Y. As shown in FIG. The projection 13c has a first edge 13c1, a second edge 13c2, and an inclined surface 13c3. The inclined surface 13c3 is a surface of the convex portion 11 side. The 1st edge 13c1 is an edge of the base side of the processus | protrusion 13c of the inclined surface 13c3. The distance between the first edge 13c1 and the convex portion 11 is the distance from the first surface 241a of the section portion 240a to the second surface 242a (that is, the thickness dimension of the section portion 240a). Is approximately the same as The second edge 13c2 is an edge of the tip end side of the protrusion 13c of the inclined surface 13c3. The inclined surface 13c3 is inclined so as to be interposed from the convex part 11 from the 1st edge 13c1 to the 2nd edge 13c2.

The second mold 20 has a recess 21 and a protrusion 22. The recessed part 21 has the shape corresponding to the external shape of the base 110 of the body 100. The protrusion 22 is formed on the bottom surface of the recessed part 21. The protrusion 22 has a central portion 22a and a plurality of branch portions 22b. The central portion 22a has a shape corresponding to the internal shape of the central portion 141 of the recess 140 of the body 100. The branch portion 22b is an elongated protruding stem corresponding to the inner shape of the branch portion 142 of the recess 140 of the body 100, and extends radially from the central portion 22a. The length dimension of 22b) is smaller than the length dimension of the terminal body 210a of the terminal 200a. The width dimension of the branch portion 22b is smaller than the width dimension of the terminal body 210a.

In the state where the first and second molds 10 and 20 are coupled to each other, the convex portion 11, the recessed portion 12, the protrusions 13a, 13b and 13c, the recessed portion 21 and the protrusion 22 ) Partitions the cavity C1 of the first and second molds 10 and 20. The cavity C1 has a shape corresponding to the outer shape of the body 100 and the connection portions 250a, 260a, 220b, 220c protruding from the body 100.

The third mold 30 has a shape substantially the same as that of the first mold 10 except that the third mold 30 differs from the first mold 10 in that the spool 14 is not provided. The fourth mold 40 has substantially the same shape as the second mold 20 except that the fourth mold 40 has no protrusion 22 and differs from the second mold 20 in that the spool 42 is provided. . In a state where the third and fourth molds 30 and 40 are coupled to each other, the convex portion 31, the recessed portion 32, the protrusions 33a, 33b, 33c, and the recessed portion 41 are arranged in a third manner. The cavity C2 of the fourth molds 30 and 40 is partitioned. Cavity C2 becomes the shape corresponding to the external shape of the said resin molded article.

Hereinafter, a method of manufacturing the resin molded article using the first, second molds 10, 20, and the third, fourth molds 30, 40 will be described with reference to FIGS. 6A to 6C. . First, the intercepting part 220a of the terminal 200a is inserted between the convex part 11 and the protrusion 13a, and the intercepting part 230a of the terminal 200a is inserted between the convex part 11 and the protrusion 13b. The cutout portion 240a of the terminal 200a is inserted between the convex portion 11 and the protrusion 13c. Then, the first surface 221a of the section 220a partially contacts the convex portion 11, and the second surface 222a of the section 220a is the first edge 13a1 of the projection 13a. Contact with. That is, the intercepting section 220a is held between the convex section 11 and the first edge 13a1 of the projection 13a (see FIG. 6A). At this time, the second edge 13a2 and the inclined surface 13a3 of the protrusion 13a do not contact the second surface 222a of the cutout portion 220a. The first surface 231a of the cutout portion 230a partially contacts the convex portion 11, and the second surface 232a of the cutout portion 230a is formed with the first edge 13b1 of the protrusion 13b. I touch it. That is, the cutout portion 230a is held between the convex portion 11 and the first edge 13b1 of the protrusion 13b (see FIG. 6C). At this time, the second edge 13b2 and the inclined surface 13b3 of the projection 13b do not contact the second surface 232a of the cutout portion 230a. The first surface 241a of the cutout portion 240a partially contacts the convex portion 11, and the second surface 242a of the cutout portion 240a is formed with the first edge 13c1 of the protrusion 13c. I touch it. In other words, the cutout portion 240a is held between the convex portion 11 and the first edge 13c1 of the protrusion 13c (see FIG. 6C). At this time, the second edge 13c2 and the inclined surface 13c3 of the protrusion 13c do not contact the second surface 242a of the cutout portion 240a.

Thereafter, the first and second molds 10 and 20 are closed with a mold. Then, the terminals 200a, 200b, and 200c are accommodated in the cavity C1 of the first and second molds 10 and 20, and the terminal bodies 210a, 210b, and 200c of the terminals 200a, 200b, and 200c. 210c is held between the protrusions 11 of the first mold 10 and the protrusions 22 of the second mold 20. Specifically, the terminal body 210a is held between the convex portion 11 and some of the branch portions 22b of the branch portions 22b of the projection 22. The terminal body 210a and the terminal body 210b are held between the convex portion 11 and the other branch portion 22b of the branch portion 22b of the projection 22. The terminal body 210a and the terminal body 210c are held between the convex portion 11 and the remaining branch portions 22b of the branch portions 22b of the projection 22.

Thereafter, the first insulating resin R1 is injected from the spool 14 into the cavity C1 of the first and second molds 10 and 20 to layer the cavity C1. Thereafter, the first insulating resin R1 is cured. In this way, the first insulating resin R1 is molded as the body 100. The recess 140 corresponding to the shape of the protrusion 22 is formed on the second surface 222a of the body 100, and the protrusions 13a, 13b, and 13c are formed on the sidewall 120 of the body 100. Concave portions 130a, 130b, 130c corresponding to the shape are formed. In this way, the terminals 200a, 200b, and 200c are insert molded into the body 100 (first insulating resin R1).

Specifically, the terminal body 210a, 210b, 210c is embedded in the base 110 of the body 100. As a result, the first surfaces 211a, 211b, and 211c of the terminal bodies 210a, 210b, and 210c are partially exposed from the first surface 111 of the body 100. The second surface 212a of the terminal body 210a is partially exposed from the branch portion 142 of the recess 140 of the body 100. From the other branch part 142 of the recessed part 140 of the body 100, the 2nd surface 212a, 212b of the terminal body 210a, 210b is partially exposed. The second surfaces 212a and 212c of the terminal bodies 210a and 210c are partially exposed from the remaining branch portions 142 of the recess 140 of the body 100. Portions other than the tips of the connecting parts 250a, 260a, 220b, and 220c are embedded in the base of the body 100, and the tips protrude out of the body 100. Sectional portions 220a, 230a, 240a are embedded in the sidewall 120 of the body 100. As a result, the first surfaces 221a, 231a, and 241a of the cutout portions 220a, 230a, and 240a are exposed from the wall surface 121 of the sidewall 120. The second surfaces 222a, 232a, 242a of the section portions 220a, 230a, 240a are in contact with the first edges 131a, 131b, 131c of the recesses 130a, 130b, 130c. It is covered by resin inside the inclined surfaces 133a, 133b, and 133c of the recesses 130a, 130b, and 130c. Thereafter, the first and second molds 10 and 20 are released, and the body 100 and the terminals 200a, 200b, and 200c are taken out.

Thereafter, the body 100 and the terminals 200a, 200b, and 200c are accommodated in the cavity C2 of the third and fourth molds 30 and 40, and the body 100 is formed by the fourth mold 40. To block the recess 140. As a result, the space is partitioned by the fourth mold 40 and the recess 140 of the body 100. Thereafter, a second insulating resin R2 is injected into the space from the spool 14 to fill the space (concave portion 140). Then, the second insulating resin R2 is cured. In this way, the second insulating resin R2 is molded as the sealing portion 300. As a result, the sealing part 300 is fixed to the body 100 and the terminals 200a, 200b, and 200c. Thereafter, the third and fourth molds 30 and 40 are released, and the body 100, the terminals 200a, 200b, and 200c and the sealing part 300 are taken out. In this way, a resin molded article is produced.

In the case of the resin molded article, at the time of molding the body 100, the section portion 220a is sandwiched between the convex portion 11 of the first mold 10 and the first edge 13a1 of the protrusion 13a. maintain. The intercepting portion 230a is held between the convex portion 11 of the first mold 10 and the first edge 13b1 of the protrusion 13b. The intercepting portion 240a is held between the convex portion 11 of the first mold 10 and the first edge 13c1 of the protrusion 13c. In addition, the terminal bodies 210a, 210b and 210c are held between the convex portion 11 of the first mold 10 and the protrusion 22 of the second mold 20. Therefore, since the terminal 200a can be easily positioned and maintained inside the cavity C1, the terminal 200a can be miniaturized as compared with the case where a separate positioning holding portion is formed in the terminal 200a. In addition, the resin molded article can be miniaturized. In addition, since the cutout portions 220a, 230a, and 240a are bent at approximately right angles to the terminal body 210a, they are affected by the injection pressure when injecting the first insulating resin R1 into the cavity C1. easy. However, since the section portions 220a, 230a, 240a are held by the convex portion 11 and the first edge of the projection as described above. By the injection pressure, it is possible to suppress the cutting portions 220a, 230a, 240a of the terminals 200a, 200b, 200c from moving or deforming. In addition, since the section portion 220a is guided between the convex portion 11 and the first edge 13a1 of the protrusion 13a by the inclined surface 13a3 of the first mold 10, the section portion 220a is convex. It can be easily inserted between the part 11 and the 1st edge 13a1. This point also applies to the cutout portions 230a and 240a.

Further, the inclined surfaces 13a3, 13b3, 13c3 of the projections 13a, 13b, 13c of the first mold 10 are inclined so as to be interposed from the convex portion 11. If the intercepting portions 220a, 230a, 240a are held between the convex portion 11 and the first edges 13a1, 13b1, 13c1 of the projections 13a, 13b, 13c, the inclined surfaces 13a3, 13b3, 13c3 ) And a space that forms part of the cavity C1 between the second surfaces 222a, 232a, and 242a of the cutout portions 220a, 230a, and 240a. Since the first insulating resin R1 may be introduced into the space, the first edges of the protrusions 13a, 13b, and 13c of the second surfaces 222a, 232a, and 242a of the cut portions 220a, 230a, and 240a may be introduced. Despite contacting 13a1, 13b1, and 13c1, the second surfaces 222a, 232a, and 242a can be embedded in the resin.

In the molding of the body 100, the terminals 200a, 200b, and 200c are held between the protrusions 11 of the first mold 10 and the protrusions 22 of the second mold 20. do. For this reason, the recessed part 140 corresponding to the external shape of the protrusion 22 is formed in the 2nd surface 112 of the body 100. As shown in FIG. Since the sealing part 300 is filled in this recessed part 140, the insulation, waterproofness, and dustproofness of the said resin molded article can be improved, without increasing the thickness dimension of the said resin molded article. In addition, since the sealing part 300 is filled in the recessed part 140 and fixed to the body 100 and the terminals 200a, 200b, and 200c, it does not fall easily.

Moreover, the recessed part 140 is a shape which has the center part 141 and the some branch part 142 extended radially from this center part 141. As shown in FIG. The branch portion 142 has a narrow elongate shape, as described above. For this reason, when the sealing part 300 is formed, the second insulating resin R2 is injected into the central portion 141 by flowing the second insulating resin R2 into the branch portion 142 from the central portion 141. do. That is, since the fluidity of the second insulating resin R2 is improved, the second insulating resin R2 (the sealing part 300) can be easily filled with respect to the recess 140.

In addition, the manufacturing method of the resin molded article, the molding metal mold | die, and the resin molded article demonstrated above is not limited to the said Example, It can design change arbitrarily in the description range of a claim. Hereinafter, this will be described in detail.

In the above embodiment, the body 100 has a base 110, sidewalls 120, recesses 130a, 130b, 130c, recesses 140, and protrusions 150. . However, the body has a base, a side wall which is provided on the base and has a wall surface, and a recess formed in the side wall, wherein the recess is an edge of the opening side of the recess and a second surface of the cutout portion. As long as it has a 1st edge which contacts, the 2nd edge which is an edge of the bottom side of the said recessed part, and the inclined surface or the curved curved surface which inclined so that it may be interposed from the said cutting part from the said 1st edge to the said 2nd edge. It is possible to change the design arbitrarily. At least one said recessed part may be sufficient. The length dimension of a recessed part can be said to be substantially the same as the dimension of the said recessed part in the longitudinal direction. Moreover, the length dimension of a recessed part can be made longer than the dimension of the said recessed part in the longitudinal direction, and can also shorten it. Moreover, a 1st edge can be made into the edge of the opening side (one side of 3rd direction Z) of the recessed part of a curved surface. The second edge can be the edge of the bottom side (the other side in the third direction Z) of the concave portion of the curved surface. In addition, the recessed part 140 can be omitted.

In the said Example, the side wall 120 was said to be annular shape installed in the peripheral part of the base 110. As shown in FIG. However, the side wall can be arbitrarily changed in design as long as it is provided on the base and has a wall surface. For example, the side wall can be changed into a shape such as a substantially rectangular shape in plan view, an arc shape in plan view, or a substantially U shape in plan view. Also in this case, it is possible to partition the space by the side wall and the base. The space is any space. The accommodation space S can also be used as any space.

In the above embodiment, the terminal 200a has a terminal body 210a, cut-out portions 220a, 230a and 240a, and connecting portions 250a and 260a. But. The terminal can be arbitrarily changed in design as long as it has at least a cut-out part. For example, the terminal can be configured to have a terminal body and a cut-out portion that is connected to the terminal body and folded and bent with respect to the terminal body. The terminal body can be configured to be embedded in the base so as to partially expose from at least one of the first and second surfaces of the base. Further, the terminal body can be configured to be embedded in the base so as to partially expose from the recesses formed on at least one of the first and second surfaces of the base. The cutout portion is not limited to the bent form folded at right angles to the terminal body as in the above embodiment. That is, the bending angle with respect to the terminal body of a cut part can be arbitrarily set.

In the above embodiment, the cutout portion 220a is embedded in the side wall 120 so that the first surface 221a is partially exposed from the wall surface 121 of the side wall 120. But. As long as the section has a first surface and a second surface opposite thereto, the first surface is exposed from the wall surface of the side wall, and the second surface is embedded in the side wall so as to be in contact with the first edge of the recess of the side wall. It is possible to change the design arbitrarily. For example, it is possible to set it as the structure embedded in the said side wall so that the whole area | region of a 1st surface may be exposed from the wall surface of a side surface. In this regard, the sections 230a and 240a can be changed in design as well. In addition, the terminals 200b and 200c can be omitted.

In the above embodiment, the tip portions of the connecting portions 250a and 260a of the terminal 200a are projected from the outer surface of the base 110. However, the connecting portion can be configured to protrude from the second surface of the body. Moreover, when connecting the connection means, such as a pin and a cable, to the connection part of a terminal inside a body, it can be set as the structure which does not protrude from a body. In addition, the terminals 200b and 200c can also be changed in design in this way.

The sealing part 300 can be omitted. In the above embodiment, the sealing portion 300 may include a central portion 310 filled in the central portion 141 of the recess 140 and a plurality of branch portions filled in the branch portion 142 of the recess 140. 320). However, as long as the sealing portion is filled in the recessed portion of the second surface of the body and adhered to the portion exposed from the recessed portion of the body and the terminal, it is possible to arbitrarily change the design. That is, the sealing part can be arbitrarily changed in design according to the shape of the recessed part of the 2nd surface of a body.

 In the above embodiment, the first mold 10 has a convex portion 11, a concave portion 12, protrusions 13a, 13b, 13c, and a spool 14. However, the 1st mold has the convex part which can contact | connect the 1st surface of the cutting part of a terminal, and the processus | protrusion formed in the convex part at intervals, The said processus is the edge of the base side of the said processus | protrusion, and the said cutting-out A first edge abutting the second surface opposite to the first surface of the portion, a second edge which is an edge of the distal end portion of the protrusion, and the convex portion from the first edge to the second edge. It is possible to change the design arbitrarily as long as it has an inclined surface or a curved curved surface inclined to be placed. For example, a 1st mold can be set as the structure which has a recessed part, the convex part formed in the said recessed part, and the processus | protrusion formed in the said recessed part, and formed in the space | interval from the said convex part. In addition, a 1st edge can be made into the edge of the opening side (one side of 3rd direction Z) of the processus | protrusion of a curved surface. The second edge can be the edge of the bottom side (the other side in the third direction Z) of the projection of the curved surface.

In the above embodiment, the protrusions 13a, 13b, and 13c are referred to as protruding stems, but are not limited thereto. That is, the projection of the 1st mold in this specification is a concept containing both a convex part and an elongate protruding stem. The length dimension of a processus | protrusion may be said to be substantially the same as the dimension of the longitudinal direction of the said processus of a cut-out part. Moreover, the length dimension of a processus | protrusion can be made longer than the dimension of the longitudinal direction of the said processus | protrusion of a cut-out part, and can also shorten it. In addition, what is necessary is just at least one said processus | protrusion.

 In the above embodiment, the second mold 20 has a concave portion 21 and a protrusion 22. However, the second mold can be arbitrarily changed in design as long as the second mold can form a cavity that can accommodate at least a section of the terminal together with the first mold.

In the above-described method for producing a molded article, at least one terminal section is inserted between the projections and protrusions of the first mold, and the first surface of the sections is formed with the convex portion and the second edge with projections. By contacting, the cutout portion is held between the convex portion and the first edge, and in this state, the first and second molds are closed by the mold, and at least the cutout portion of the terminal is inside the cavity of the first and second molds. It is possible to change the design arbitrarily as long as it arrange | positions, injects an insulating resin into the said cavity, hardens | cures, and embeds the said cut-out part in the said insulating resin.

In the above embodiment, when the first and second molds 10 and 20 are closed, the terminal 200a is accommodated into the cavity C1 of the first and second molds 10 and 20. The terminal body 210a of the terminal 200a is held between the convex portion 11 of the first mold 10 and the protrusion 22 of the second mold 20. However, when closing the first and second molds, it is possible to arbitrarily change the design, as long as at least a section of the terminal is disposed inside the cavity of the first and second molds. In addition, it is possible to hold the interceptor of the terminal between the convex portion of the first mold and the first edge of the projection, and to hold the terminal body of the terminal partially or entirely in the first and second molds. In addition, it is also possible to arrange | position the terminal body of the said terminal hollow inside the cavity of a 1st, 2nd mold | type by holding the intercepting part of a terminal between the convex part of a 1st mold, and the 1st edge of a protrusion.

In the above embodiment, it is said that the method for producing a resin molded article has a step of forming the sealing portion 300 by using the third and fourth molds 30 and 40. However, in the method for producing a resin molded article, the steps using the third and fourth molds can be omitted.

In addition, in the said embodiment, the raw material, shape, a dimension, a number, arrangement | positioning, etc. which comprise each part of a resin molded article and a metal mold | die for shaping | molding demonstrated the example, and can design change arbitrarily as long as the same function can be realized. Do.

100: Body
110: Base
111: page 1
112: page 2
120: side wall
121: wall panel
122: wall surface
130a: concave
131a: first edge
132a: second edge
133a: slope
130b: recessed portion
131b: first edge
132b: second edge
133b: slope
130c: concave
131c: first edge
132c: second edge
133c: slope
140: recess
141: central
142: branch
200a: terminal
210a: terminal body
211a: first page
212a: page 2
220a: intercept
221a: first page
222a: page 2
230a: intercept
231a: first page
232a: page 2
240a: intercept
241a: first page
242a: page 2
250a: connection
260a: connection
200b: terminal
210b: terminal body
211b: first page
212b: page 2
220b: connection
200c: terminal
210c: terminal body
211c: first page
212c: page 2
220c: connection
300: sealing part
310: center
320: branch
Y: First direction
X: second direction
Z: third direction
10: first mold
11: convex portion
12:
13a: turning
13a1: first edge
13a2: second edge
13a3: slope
13b: turning
13b1: first edge
13b2: second edge
13b3: slope
13c: turning
13c1: first edge
13c2: second edge
13c3: slope
14: Spool
20: second mold
21:
22: projection
22a: center
22b: branch
30: third mold
31: convex
32: concave
33a: turning
33b: turning
33c: turning
40: fourth mold
41:
42: spool
R1: first insulating resin
R2: second insulating resin

Claims (9)

At least the first and second molds having a cavity that can accommodate the interceptor of the terminal are provided.
The first mold may include a convex portion that can contact the first surface of the section portion,
Has a protrusion formed at intervals on the convex portion,
The protrusion is a first edge which is an edge of the base side of the protrusion and is in contact with a second surface opposite to the first surface of the cutout portion,
A second edge which is an edge of the tip end side of the protrusion,
A molding die having an inclined surface or a curved curved surface inclined so as to be interposed from the convex portion from the first edge to the second edge. The method of claim 1,
A mold for molding, wherein the first and second mold cavities are connected to the terminal main body of the terminal and the terminal main body, and the section portion bent and folded with respect to the terminal main body can be accommodated. 3. The method of claim 2,
The said 1st, 2nd mold | die is a shaping | molding die which can accommodate the said terminal body in the said cavity, and can hold | maintain it partially. As a manufacturing method of a resin molded article which manufactures a resin molded article using the molding die of Claim 1,
By inserting the interceptor of the terminal between the convex portion and the protrusion of the first mold, and contacting the first face of the interceptor portion with the convex portion and the second surface with the first edge of the protrusion, The cut portion is held by the block portion and the first edge,
In this state, the first and second molds are closed by a mold, and at least the intercepting portion of the terminal is disposed inside the cavity of the first and second molds,
A method for producing a resin molded article in which an insulating resin is injected into the cavity, cured, and the cut portion is embedded in the insulating resin. 5. The method of claim 4,
When the cutout portion of the terminal is disposed inside the cavity of the first and second molds, the cutout portion which is connected to the terminal body of the terminal and the terminal body and is bent with respect to the terminal body is bent. The manufacturing method of the resin molded article arrange | positioned inside. 6. The method of claim 5,
The first and second molds, wherein the terminal body is accommodated in the cavity, and at the same time partially retained. A terminal having a section having a first side and a second side opposite the first side;
I have a body,
The body, the base,
A side wall mounted on the base and having a wall surface;
Has a recess formed in the side wall,
The section portion is embedded in the side wall such that the first surface is exposed from the wall surface of the side wall,
The concave portion is an edge of the opening side of the concave portion, and further includes a first edge contacting the second surface of the cut portion;
A second edge which is an edge at the bottom of the recess;
A resin molded article having an inclined surface or a curved curved surface inclined so as to be interposed from the intercepting portion from the first edge to the second edge. 8. The method of claim 7,
The terminal further has a terminal body embedded in the base,
The said cut-out part is connected with the said terminal body, Furthermore, it is folded with respect to the said terminal body, and the resin molded article. 9. The method according to claim 7 or 8,
The body further has a receiving space partitioned by the side wall,
The wall surface is a resin molded product which is a wall surface toward the accommodation space.

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