KR102028759B1 - Resin molded article and production method of resin molded article - Google Patents

Abstract

The present invention provides a resin molded article and a method for producing the resin molded article capable of reducing the thickness dimension.
In order to solve such an object, the resin molded article of the present invention includes a body 100 made of an insulating resin, a terminal 200a, and a sealing portion 300 made of an insulating resin. The body 100 has the recessed part 140 formed in the 1st surface 111, the 2nd surface 112 opposite to the 1st surface 111, and the 2nd surface 112. As shown in FIG. The terminal 200a is embedded in the body 100 to partially expose the recess 140. The sealing part 300 is filled in the recessed part 140 of the body 100, and is fixed to the body 100 and the terminal 200a.

Description

Resin molded article and manufacturing method of resin molded article {RESIN MOLDED ARTICLE AND PRODUCTION METHOD OF RESIN MOLDED ARTICLE}

The present invention relates to a resin molded article and a method for producing a resin molded article.

This type of resin molded article includes terminals and first and second bodies made of an insulating resin. The terminal is embedded in the first body so as to partially expose from the first surface of the first body and partially expose from the recess of the second surface of the first body. The recessed portion of the first body is formed by the convex portion of the metal mold which partially sandwiches the terminal when insert-molding the terminal into the first body. The second body is formed so as to cover the outer circumference of the first body and the entire area of the second surface, and blocks the recessed portion. For this reason, the insulation, dustproofness, and water resistance of a resin molded article are improved (refer patent document 1).

[Patent Document 1] Japanese Patent Application Laid-Open No. 03-112025

Since the 2nd body is formed so that the whole area | region of the back surface of a 1st body may be covered, the thickness of the said resin molded article becomes large.

The present invention was devised in view of the above circumstances, and an object thereof is to provide a resin molded article and a method for producing a resin molded article capable of reducing the thickness dimension.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the 1st resin molded article of this invention is equipped with the body made of an insulation resin, the terminal, and the sealing part made from an insulation resin. The body has a first surface, a second surface opposite to the first surface, and a recess formed in the second surface. The terminal is embedded in the body so as to partially expose the recess. The said sealing part is filled in the said recessed part of the said body, and is fixed to the said body and the said terminal.

In the case of the resin molded article of this embodiment, since the sealing portion is only filled in the recessed portion of the second surface of the body, the thickness dimension of the resin molded article can be reduced. Moreover, since the sealing part is filled in the recessed part and fixed to the body and the terminal, it does not fall easily.

The recess can be elongated. The length dimension of at least one portion of the recess is smaller than the length dimension of the terminal, and the width dimension of the portion of the recess is smaller than the width dimension of the terminal.

In the case of the resin molded article of such a form, the fluidity of the sealing portion at the time of filling the sealing portion in the recess is improved.

It is possible to make more than one said terminal. It is possible to set it as the structure which the said some terminal embed | buried in the said body so that it may partially expose from the said recessed part.

In the case of the resin molded article of this type, the sealing portion is filled in one recess to cover a portion exposed from the recess of the plurality of terminals. Therefore, the sealing part can be easily charged.

The said recessed part can be set as the structure which has a center part and the some branch part extended radially from the said center part.

In the case of the resin molded article of this type, when the sealing portion is filled in the center portion, it flows into the branch portion. Therefore, it becomes easy to fill a sealing part in a recessed part.

At least one length dimension of the branch portion is smaller than the length dimension of the terminal, and it is possible to have a configuration in which at least one width dimension of the branch portion is smaller than the width dimension of the terminal.

In the case of the resin molded article of such a form, the fluidity of the sealing portion at the time of filling the sealing portion in the recess is improved.

It is possible to make more than one said terminal. The plurality of terminals can be configured to be partially exposed from at least one of the branch portions.

In the case of the resin molded article of this type, the sealing portion is filled in one branch portion, so that the portion exposed from the branch portions of the plurality of terminals is covered. Therefore, the sealing part can be easily charged.

In the method for producing a resin molded article of the present invention, the terminal is accommodated inside the cavity of the first and second molds, and the terminal is partially held between the protrusions of the first mold and the second mold. The first insulating resin is injected into the cavity of the first and second molds and cured, thereby insert-molding the terminal to the first insulating resin and partially exposing the terminal to the first insulating resin. The recessed part of the shape corresponding to the said processus | protrusion is formed. Thereafter, the first and second molds are released to take out the first insulating resin and the terminal. Thereafter, the first insulating resin and the terminal are accommodated in a cavity of a third and fourth mold, and the recess is formed in the fourth mold to block the recessed portion of the first insulating resin. The second insulating resin is injected into the space partitioned by the recessed portion of the resin and cured. Thereafter, the third and fourth molds are released to take out the first and second insulating resins and the terminals.

In the manufacturing method of the resin molded article of this type, since the second insulating resin is injected into the recess of the first insulating resin and cured, the thickness dimension of the resin molded article is increased to prevent the recess of the first insulating resin. Can be prevented. In addition, since the second insulating resin is injected into the recessed portion of the first insulating resin and cured, the second insulating resin does not easily fall off.

The projections can be elongated. The length dimension of at least one portion of the projection is smaller than the length dimension of the terminal, and the width dimension of the portion of the projection is smaller than the width dimension of the terminal.

According to the method for producing a resin molded article of this type, the length dimension of at least a portion of the recessed portion of the first insulating resin formed by the projection is smaller than the length dimension of the terminal, and the width dimension of the portion of the recessed portion is the terminal. Becomes smaller than the width dimension. Accordingly, the fluidity of the second insulating resin when the second insulating resin is injected into the recess is improved.

When accommodating a plurality of terminals inside the cavity of the first and second molds, it is possible to partially hold the terminals between the protrusions of the first mold and the second mold.

 In the case of the manufacturing method of the resin molded article of this type, since the plurality of terminals are held at a time between the protrusions of the first mold and the second mold, positioning in the cavity of the terminal becomes easy.

The projection can be configured to have a central portion and a plurality of branch portions extending radially from the central portion.

In the manufacturing method of the resin molded article of this type, the recessed portion of the first insulating resin formed by the projections has a central portion and a plurality of branch portions extending radially from the central portion. When the second insulating resin is filled in the center of the concave portion, it flows into the branch portion. Therefore, it is easy to fill the recessed portion of the second insulating resin.

At least one length dimension of said branch portion is smaller than the length dimension of said terminal, and at least one width dimension of said branch portion is smaller than the width dimension of said terminal.

According to the manufacturing method of the resin molded article of this type, the length dimension of at least one branch portion of the recessed portion of the first insulating resin formed by the branch portion of the projection is smaller than the length dimension of the terminal, The width dimension becomes smaller than the width dimension of the terminal. Therefore, the fluidity | liquidity of the said 2nd insulating resin at the time of injecting a 2nd insulating resin to the said branch part of the said recessed part is improved.

When accommodating a plurality of the terminals inside the cavity of the first and second molds, the terminals are partially sandwiched between the first mold and at least one branch of the protrusion of the second mold. It is possible to maintain.

According to the manufacturing method of the resin molded article of this type, since the plurality of terminals are held at a time between the branch portions of the first mold and the second mold, positioning within the cavity of the terminal is performed. It becomes easy.

According to the present invention, it is possible to provide a resin molded article and a method for producing a resin molded article having a reduced thickness dimension.

1A is a perspective view of a resin molded article according to an embodiment of the present invention, shown in front, plane, and right side.
1B is a perspective view showing the back, bottom and right sides of the resin molded article.
2A is a view showing the 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.
Fig. 3A is a cross-sectional view 3a-3a in Fig. La of the resin molded article.
It is sectional drawing 3b-3b in FIG. 2A of the said resin molded article.
Fig. 3C is a cross-sectional view of 3C-3c in Fig. La of the resin molded article.
4 is a perspective view of the terminal of the resin molded article shown in front, plane and right side thereof.
FIG. 5 is a perspective view of a front, a plane and a right side of a sealing portion of the resin molded article. FIG.
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 insulating resin, as shown in Figs. 1A to 3C. The body 100 includes a base 110, side walls 120, recesses 130a, 130b, and 130c, and recesses 140 (this corresponds to recesses in the body of the claims). And the convex portion 150. The base 110 has a first surface 111 (this corresponds to the first surface of the body of the claims) and a second surface 112 opposite to the first surface 111 (this is the patent). It corresponds to the 2nd side of the body of the range of (). 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 part 142 is an elongate recess and extends radially from the central part 141. The length dimension of the branch part 142 is smaller than the length dimension of the terminal body 210a which is mentioned later of the terminal 200a. 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 illustrated in FIGS. 2B to 4, the terminal 200a has a terminal body 210a, cut-out portions 220a, 230a, and 240a, and connection portions 250a and 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. 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. 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. 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 of the width direction one end part of the terminal body 210a, and extends 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 of the other end part of the width direction of the terminal main 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 illustrated in FIGS. 2B to 4, the terminal 200b has a terminal body 210b and a connecting portion 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 portion 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 in FIGS. 2B to 4, the terminal 200c has a terminal body 210c and a connecting portion 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 tip 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.

On one side of the first direction Y of the intercepting portion 220a of the terminal 200a of the side wall 120, as shown in FIGS. 1A and 3A, a recess 130a is formed. Concave portions 130b are formed in one side of the second direction X of the intercepting portion 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 side of the cutout 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 recess 130a is an elongate recess extending in the second direction X, as shown in FIG. 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. The recessed part 130a has the 1st edge 131a, the 2nd edge 132a, and the inclined surface 133a, as shown to FIG. 3A. 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 extending in the 1st direction Y, as shown in FIG. The dimension of the 1st direction Y of the recessed part 130b is smaller than the dimension of the 1st direction Y of the cut-out 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 in FIG. 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 in FIGS. 1B-2B, 3A-3C, and 5, and the body 100 and the terminal 200a, 200b, 200c are filled. It is fixed insulation resin. The other surface of the sealing part 300 of the 3rd direction Z is one surface with the 2nd surface 112 of the body 100. As shown in FIG. 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 1st molding die is equipped with the 1st, 2nd molds 10 and 20. As shown to FIG. 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 projection 13a, 13b, 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 body 100 of a resin molded article. 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 in FIG. 6C, the projection 13b is formed on the bottom surface of the recess 12 at intervals on one side in the second direction X from the convex portion 11. The projection 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 of 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 in FIG. 6C, the projection 13c is formed on the bottom surface of the concave portion 12 at intervals from the convex portion 11 to the other side in the second direction X. As shown in FIG. 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 to the second surface 242a of the section portion 240a (ie, 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 the branch part 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.

The convex part 11, the recessed part 12, the projections 13a, 13b, 13c, the recessed part 21, and the protrusion 22 in the state which the 1st, 2nd mold 10 and 20 are couple | bonded with each other. ) Partitions the cavity (Cl) of the first, second mold (10), (20). The cavity Cl is in the shape corresponding to the external shape of the body 100 and the connection parts 250a, 260a, 220b, 220c which protrude from the body 100. As shown in FIG.

The third mold 30 has a shape substantially the same as that of the first mold 10 except for being different from the first mold 10 in that the third mold 30 does not have the spool 14. 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. do. 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 into the convex part 11 and the protrusion 13b. It inserts between and, and the intercepting part 240a of the terminal 200a is inserted between the convex part 11 and the protrusion 13c. Then, the first surface 221a of the sectioning portion 220a contacts the convex portion 11, and the second surface 222a of the sectioning portion 220a forms the first edge 13a1 of the protrusion 13a and the sugar. Contact 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 abuts on the convex portion 11, and the second surface 232a of the cutout portion 230a abuts on the first edge 13b1 of the protrusion 13b. 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 abuts the convex portion 11, and the second surface 242a of the cutout portion 240a abuts the first edge 13c1 of the protrusion 13c. 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 Cl of the first and second molds 10 and 20, and the terminal bodies 210a, 210b, and 200c of the terminals 200a, 200b, and 200c are received. 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 portions 11 and the branch portions 22b of the projections 22 between some of the branch portions 22b. The terminal body 210a and the terminal body 210b are held between the convex portion 11 and the branch portion 22b of the protrusion 22 between the other branch portions 22b. The terminal body 210a and the terminal body 210c are held between the convex portion 11 and the branch portions 22b of the projection 22 between the remaining branch portions 22b.

Thereafter, the first insulating resin Rl is injected from the spool 14 into the cavities Cl of the first and second molds 10 and 20 to fill the cavity Cl. Thereafter, the first insulating resin Rl is cured. In this way, the first insulating resin Rl 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 connection parts 250a, 260a, 220b, and 220c are embedded in the base 110 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, and 242a of the section portions 220a, 230a, and 240a are in contact with the first edges 131a, 131b, and 131c of the recesses 130a, 130b, and 130c, and the recesses 130a, It is covered by resin inside the inclined surfaces 133a, 133b, and 133c of the 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 transferred from 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 from the spool 14 into the space and filled in the space (concave portion 140). Thereafter, 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. A resin molded article is manufactured as mentioned above.

In the case of the resin molded article, at the time of molding the body 100, the terminals 200a, 200b, 200c between the convex portion 11 of the first mold 10 and the protrusion 22 of the second mold 20. ) Is held in place. 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 an 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 in the recess 140.

Moreover, at the time of shaping | molding of the body 100, the fragment part 220a is clamped and hold | maintained between the convex part 11 of the 1st mold 10, and the 1st edge 13a1 of the protrusion 13a. 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.

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 portions 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 section 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 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 is possible to change a design arbitrarily in the description range of a claim. Hereinafter, it demonstrates in detail.

In the above embodiment, the body 100 includes a base 110 having first and second surfaces 111 and 112, side walls 120, recesses 130a, 130b, and 130c, and recesses. It is assumed that the part 140 and the convex part 150 are provided. However, the body can be arbitrarily changed in design as long as it has a first surface, a second surface opposite to the first surface, and a recess formed in the second surface. For example, the body can be formed in a plate shape or a block shape. In this case, a body can be set as the structure which has the 1st surface which is arbitrary surfaces, the 2nd surface opposite to the said 1st surface, and the recessed part formed in the said 2nd surface.

In the above embodiment, the concave portion 140 is formed on the second surface 112 of the body 100, has a central portion 141 and a plurality of branch portions 142, and has a branch portion 142. It is assumed that the terminal bodies 210a, 210b and 210c of the terminals 200a, 200b and 200c are partially exposed. However, as long as the recess is formed in the second surface of the body and partially exposes at least one terminal, it is possible to arbitrarily change the design. For example, the recess can be changed into a recess such as a circle or a polygon. In addition, the concave portion can be changed in design by an elongated shape. It is preferable that the length dimension of at least one portion of the recess is smaller than the length dimension of the terminal, and the width dimension of the portion of the recess is smaller than the width dimension of the terminal. The said recessed part can be set as the structure extended along the longitudinal direction of the said terminal. In the above embodiment, the branch portion 142 of the concave portion 140 has a length dimension smaller than that of the terminal body 210a of the terminal 200a, and its width dimension is a width of the terminal body 210a. It is said to be smaller than the dimension. However, the shape of the branch portion of the concave portion is not limited to the above shape and can be arbitrarily changed in design. Moreover, it is possible to set it as the structure which at least 1 of the branch part of a recessed part has the said length dimension and the width dimension.

In the above embodiment, the terminals 200a, 200b, and 200c are partially exposed by the terminal bodies 210a, 210b, and 210c from the first surface 111 of the body 100, and at the same time, the recesses of the body 100 are exposed. It is assumed that it is embedded in the body 100 so as to partially expose it from 140. However, the terminal can be arbitrarily changed in design as long as it is embedded in the body so as to partially expose it from the recess formed in the second surface of the body. For example, when the recess is formed in the first and second surfaces of the body, the terminal partially exposes the first surface from the recess of the first surface of the body, and the second surface is the first surface of the body. It is possible to set it as the structure embedded in the said body so that it may partially expose from two recessed parts.

In the above embodiment, the tip portions of the connection 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 connecting means of a pin, a cable, etc. inside a body to the connection part of a terminal, it is possible to set it as the structure which does not protrude from a body. The terminals 200b and 200c can also be changed in design in this way.

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 part is filled in the recessed part of the 2nd surface of a body, and it adheres to the part exposed from the said recessed part of a body and a terminal, it can change design arbitrarily. 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 addition, in the said Example, the sealing part 300 said that the other surface of the 3rd direction Z is the 2nd surface 112 of the body 100, and one surface. However, the sealing part may protrude from the 2nd surface of the body in the other surface of 3rd direction Z, and may be recessed in one of 3rd direction Z. In the former case, the fourth mold has a concave portion in accordance with the convex shape of the other surface in the third direction Z of the sealing portion. That is, the sealing part is formed by injecting the second insulating resin into the space partitioned between the recessed portion of the second surface of the body and the recessed portion of the fourth mold. In the latter case, the fourth mold has a convex portion corresponding to the concave shape of the other surface in the third direction Z of the sealing portion. That is, a second insulating resin is injected into the space partitioned by the concave portion of the second surface of the body and the convex portion of the fourth mold to form a sealing portion.

In the above embodiment, the terminals 200a, 200b, 200c are accommodated inside the cavity Cl of the first, second molds 10, 20, and the terminal body 210a of the terminals 200a, 200b, 200c. , 210b and 210c are held by the protrusions 11 of the first mold 10 and the protrusions 22 of the second mold 20. However, when accommodating the terminals in the cavity of the first and second molds, it is possible to arbitrarily change the design as long as at least one terminal is held by the projections of the first mold and the second mold.

In the above embodiment, the cavities Cl of the first and second molds 10, 20 are the convex portions 11, the recesses 12, the protrusions 13a, 13b, 13c, and the recesses 21. ) And the projections 22. However, the cavity of the first and second molds can be arbitrarily changed according to the shape of the body and the terminal. For example, a 1st mold has a convex part, and a 2nd mold has a recess in which the said convex part is inserted, and is formed in the said recessed part, and has a protrusion for forming the recess of the 2nd surface of a body. It is possible to make a configuration. In this case, the cavity of the 1st, 2nd mold is partitioned by the convex part of a 1st mold, the recessed part, and protrusion of a 2nd mold. The first mold has a concave portion, and the second mold has a convex portion inserted into the concave portion, and a protrusion formed on the convex portion and having a protrusion for forming a concave portion of the second surface of the body. It is possible. In this case, the cavity of the 1st, 2nd mold is partitioned by the recessed part of a 1st mold, and the convex part and protrusion of a 2nd mold. The 1st mold has a 1st recessed part, and a 2nd mold is formed in a 2nd recessed part and the said 2nd recessed part, and has a structure which has the protrusion for forming the recessed part of the 2nd surface of a body. It is possible. In this case, the cavity of a 1st, 2nd mold is partitioned by the 1st recessed part of a 1st mold, the 2nd recessed part, and a processus | protrusion of a 2nd mold. In addition, as described above, when the recess is formed on the first surface of the body, it is possible to change the design so that the terminal is held by the projection formed in the first mold and the projection of the second mold when the cavity is accommodated. At this time, the protrusion of the first mold forms a recess of the first surface of the body. The projection of the first mold may be formed on the convex portion, the concave portion or the first recessed portion of the first mold.

In the above embodiment, the protrusion 22 of the second mold 20 has a central portion 22a and a plurality of branch portions 22b. However, the shape of the projection of the second mold can be arbitrarily changed according to the shape of the recess of the second surface of the body. That is, the shape of the projection of the second mold can be changed into a shape corresponding to the shape of the concave portion of the second surface of the body described above.

In the said Example, it was assumed that the 3rd mold 30 is substantially the same shape as the 1st mold 10 except having differed from the 1st mold 10 in that it does not have the spool 14. However, the third mold can be arbitrarily changed in design as long as it has a cavity configured at the same time as the fourth mold and can accommodate a body and a terminal embedded therein. In the above embodiment, the fourth mold 40 is substantially the same as the second mold 20 except for being different from the second mold 20 in that the fourth mold 40 does not have the protrusion 22 and has the spool 42. It was called the same shape. However, the fourth mold has a cavity configured at the same time as the third mold, and can block a recess of the second surface of the body accommodated in the cavity to form a space partitioned by the fourth mold and the recess. As long as it is possible, a design change is possible.

In the above embodiment, the cavity C2 of the third and fourth molds 30 and 40 has a convex portion 31, a recessed portion 32, protrusions 33a, 33b, 33c and a recessed portion 41. It is said that it is partitioned by). However, the cavity of the third and fourth molds can be arbitrarily changed in design according to the outer shape of the resin molded article. For example, the third mold may have a convex portion, and the fourth mold may have a concave portion into which the convex portion is inserted. In this case, the cavity of a 3rd, 4th mold is partitioned by the convex part of a 3rd mold, and the recessed part of a 4th mold. It is possible to set it as the structure which a 3rd mold has a recessed part, and a 4th mold has a convex part inserted into the said recessed part. In this case, the cavity of a 3rd, 4th mold is partitioned by the recessed part of a 3rd mold, and the convex part of a 4th mold. It is possible to set it as the structure which a 3rd mold has a 3rd recessed part, and a 4th mold has a 4th recessed part. In this case, the cavity of a 3rd, 4th mold is partitioned by the 3rd recessed part of a 3rd mold, and the 4th recessed part of a 4th mold. In addition, as described above, when the recess is formed in the first surface of the body, it is possible to change the design so that the terminal is held by the projection formed in the third mold and the fourth mold when the cavity is accommodated. At this time, the projection of the third mold is fitted into the recessed portion of the first surface of the body. The projection of the third mold may be formed on the convex portion, the concave portion or the first recessed portion of the third mold.

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: first side (first side of the body)
112: second side (second side of the body)
120: sidewall
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
12: recess
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: recess
22: turning
22a: center
22b: branch
30: third mold
31: convex
32: concave
33a: turning
33b: turning
33c: turning
40: fourth mold
41: recess
42: spool
R1: first insulating resin
R2: second insulating resin

Claims (12)

A body made of an insulating resin having a first surface, a second surface opposite the first surface, and a recess formed in the second surface;
A terminal embedded in the body to partially expose the recess;
It is filled in the said recessed part of the said body, Furthermore, it is provided with the sealing part made from the insulating resin fixed to the said body and the said terminal,
The recess is an elongated shape extending in the longitudinal direction of the terminal,
A resin molded article having a length dimension of at least a portion of the recess portion smaller than a length dimension of the terminal portion, and a width dimension of the portion of the recess portion smaller than a width dimension of the terminal. delete The method of claim 1,
There are a plurality of terminals;
The resin molded article in which the said some terminal is embedded in the said body so that it may partially expose from the said recessed part. A body made of an insulating resin having a first surface, a second surface opposite the first surface, and a recess formed in the second surface;
A terminal embedded in the body to partially expose the recess;
It is filled in the said recessed part of the said body, Furthermore, it is provided with the sealing part made from the insulating resin fixed to the said body and the said terminal,
The concave portion, the central portion,
A resin molded article having a plurality of branch portions extending radially from the center portion. The method of claim 4, wherein
At least one length dimension of the branch portion is smaller than the length dimension of the terminal, and at least one width dimension of the branch portion is smaller than the width dimension of the terminal. The method according to claim 4 or 5,
There are a plurality of terminals;
A resin molded product in which the plurality of terminals are embedded in the body so as to partially expose from at least one of the branch portions. delete delete delete While accommodating the terminals inside the cavity of the first and second molds, the terminal is partially held between the protrusions of the first mold and the second mold,
The first insulating resin is injected into the cavity of the first and second molds and cured, thereby insert-molding the terminal to the first insulating resin and partially exposing the terminal to the first insulating resin. Forming concave portions corresponding to the projections;
Thereafter, the first and second molds are released to take out the first insulating resin and the terminal,
Thereafter, the first insulating resin and the terminal are accommodated inside the cavity of the third and fourth molds, and the recesses of the first insulating resin are blocked by the fourth mold, so that the fourth mold and the first insulation are closed. The second insulating resin is injected into the space partitioned by the recessed portion of the resin, and cured.
Thereafter, the third and fourth molds are released to take out the first and second insulating resins and the terminals.
The projections, the central portion,
A method for producing a resin molded article having a plurality of branch portions extending radially from the center portion. The method of claim 10,
At least one length dimension of said branch portion is smaller than the length dimension of said terminal, and at least one width dimension of said branch portion is smaller than the width dimension of said terminal. The method according to claim 10 or 11, wherein
When accommodating a plurality of the terminals inside the cavity of the first and second molds, the terminals are partially disposed between the first mold and the at least one branch of the protrusion of the second mold. A method for producing a resin molded article to be held in place.

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