Composite molded parts

Abstract

The purpose is to further improve the sealing performance between the inner and outer molded parts. A composite molded part comprises an inner part; an inner molded part covering the inner part; and an outer molded part covering the inner molded part. A hole is formed in the outer molded part, reaching the inner molded part. An annular sealing part is provided between the inner and outer molded parts, surrounding the hole. The annular sealing part is formed of a material softer than the inner molded part.

Description

Technical Field

[0001] The present disclosure relates to composite formed parts. Background Art

[0002] Patent Document 1 discloses forming a molded body by integrating a detection unit including a detection element portion and a holder portion by injection molding or the like, and forming a resin molded portion by further injection molding or the like on the molded body.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2017-96828 Summary of the Invention

[0006] Summary of the Invention

[0007] Problems to be solved by the invention

[0008] There is a demand for further improvement in the sealing performance between the inner molded portion and the outer molded portion.

[0009] Therefore, an object of the present disclosure is to further improve the sealing performance between the inner and outer formed portions.

[0010] Solutions to Problems

[0011] The composite molded component disclosed herein comprises: an inner component; an inner molding portion covering the inner component; an outer molding portion covering the inner molding portion, wherein a hole reaching the inner molding portion is formed in the outer molding portion, and an annular sealing portion surrounding the hole is provided between the inner molding portion and the outer molding portion, wherein the annular sealing portion is formed of a material softer than the inner molding portion.

[0012] Effects of the Invention

[0013] According to the present disclosure, the sealing performance between the inner molded portion and the outer molded portion can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective view showing a composite molded component.

[0015] Figure 2 It is a perspective view showing a composite molded component.

[0016] Figure 3 yes Figure 1 Cross-sectional view along line III-III.

[0017] Figure 4 It is a perspective view showing the inner molding portion and the annular sealing portion.

[0018] Figure 5 It is a perspective view showing the inner molding portion and the annular sealing portion.

[0019] Figure 6 It is a perspective view showing the internal components.

[0020] Figure 7 It is an explanatory diagram showing an example of the process of forming the annular seal portion in the inner molding portion.

[0021] Figure 8 yes Figure 3 A partial enlarged view of .

[0022] Figure 9 It is a cross-sectional view of an annular seal portion showing a modified example. DETAILED DESCRIPTION

[0023] [Description of Embodiments of the Present Disclosure]

[0024] First, embodiments of the present disclosure will be described by way of examples.

[0025] The composite formed component of the present disclosure is described below.

[0026] (1) A composite molded component comprises: an inner component; an inner molded portion covering the inner component; and an outer molded portion covering the inner molded portion, wherein a hole reaching the inner molded portion is formed in the outer molded portion, and an annular sealing portion surrounding the hole is provided between the inner molded portion and the outer molded portion, wherein the annular sealing portion is formed of a material softer than the inner molded portion. According to the present disclosure, even if at least one of the inner molded portion and the outer molded portion is deformed due to thermal contraction or thermal expansion, the annular sealing portion can deform to follow the deformation. Thus, the portion between the inner molded portion and the outer molded portion and surrounding the hole is maintained in a state sealed by the annular sealing portion. Thus, the sealing performance between the inner molded portion and the outer molded portion can be further improved. Moreover, the annular sealing portion is provided at a local portion surrounding the hole relative to the inner molded portion and the outer molded portion, thereby ensuring the strength required as a composite molded component.

[0027] (2) In the composite molded component of (1), the inner molded portion and the outer molded portion may be formed of a polyamide resin, and the annular sealing portion may be formed of a polyurethane resin. By forming the inner molded portion and the outer molded portion from a polyamide resin, the composite molded component can be made stronger. Furthermore, by forming the annular sealing portion from a polyurethane resin, the sealing performance between the inner molded portion and the outer molded portion and around the hole can be improved.

[0028] (3) In the composite molded component of (1) or (2), an annular groove surrounding the hole may be formed on the surface of the inner molded portion, and the annular sealing portion may be provided so as to fill the annular groove. The annular sealing portion is provided so as to fill the annular groove on the surface of the inner molded portion, so that the annular sealing portion can be easily maintained in a state surrounding the hole when the outer molded portion is formed.

[0029] (4) In the composite molded component according to any one of (1) to (3), the inner molded portion and the annular seal portion may be double molded or insert molded, with the inner molded portion serving as the primary molded portion and the annular seal portion serving as the secondary molded portion. This can improve the close contact between the inner molded portion and the annular seal portion, further enhancing the sealing performance.

[0030] (5) In the composite molded component according to any one of (1) to (4), the annular sealing portion may be formed in plurality, and a connecting portion formed of the same material as the annular sealing portion may be provided to connect the plurality of annular sealing portions. The plurality of annular sealing portions can be easily formed in a state connected by the connecting portion.

[0031] (6) In the composite molded component according to any one of (1) to (5), the annular seal portion may protrude from the inner molded portion. Since the annular seal portion protrudes from the inner molded portion, the annular seal portion is easily heated when the outer molded portion is molded. This facilitates the annular seal portion and the outer molded portion to be in close contact with each other.

[0032] [Details of the embodiments of the present disclosure]

[0033] Specific examples of the composite molded component disclosed herein will be described below with reference to the accompanying drawings. It should be noted that the present disclosure is not limited to these examples, but is disclosed by the claims and is intended to encompass all modifications within the meaning and scope of the claims.

[0034] [Implementation Method]

[0035] Hereinafter, a composite molded component according to an embodiment will be described. Figure 1 and Figure 2 It is a perspective view showing the composite molded component 10 . Figure 3 yes Figure 1 Cross-sectional view along line III-III. Figure 4 and Figure 5 It is a perspective view showing the inner molded portion 30 and the annular seal portions 51 , 52 , 53 , and 54 in the composite molded component. Figure 1 and Figure 4 are stereograms from the same direction. Figure 2 and Figure 5 are stereograms from the same direction. Figure 6It is a perspective view showing the inner member 20 .

[0036] The composite molded component 10 includes an inner component 20 , an inner molded portion 30 , an outer molded portion 40 , and annular seal portions 51 , 52 , 53 , and 54 .

[0037] The internal component 20 is a component covered by the inner molded portion 30 and the outer molded portion 40. The internal component 20 is, for example, an electronic component such as a sensor element.

[0038] The inner molding portion 30 is a resin portion that covers the inner component 20. The outer molding portion 40 is a resin portion that covers the inner component 20 and the inner molding portion 30. The inner component 20 is covered by the inner molding portion 30 and then by the outer molding portion 40, thereby improving the waterproofness of the inner component 20. For example, with the inner component 20 positioned by positioning pins, the inner molding portion 30 is molded. Then, with the inner molding portion 30 positioned by positioning pins, the outer molding portion 40 can be molded. As a result, the positional accuracy of the inner component 20 within the inner molding portion 30 and the outer molding portion 40 is improved, and the waterproofness can be improved by covering the entire periphery of the inner component 20 by the inner molding portion 30 and the outer molding portion 40.

[0039] The annular seals 51, 52, 53, and 54 provide waterproofing between the inner molded portion 30 and the outer molded portion 40, thereby improving waterproofing of the inner component 20. In particular, the annular seals 51, 52, 53, and 54 surround the holes 41, 42, 43, and 44, which are the traces of the positioning pins of the inner molded portion 30 when the outer molded portion 40 is molded, thereby improving waterproofing of the inner component 20.

[0040] More specifically, the internal component 20 is, for example, a sensor element 20. The sensor element 20 is an element that detects physical quantities such as magnetism, light, and temperature, or their changes. Here, the description assumes that the sensor element 20 is a magnetic sensor. Magnetic fields are less susceptible to the influence of resin, which is a non-magnetic material. Therefore, if the sensor element 20 is a magnetic sensor, the entire periphery of the sensor element 20 may be covered by the inner molded portion 30 and the outer molded portion 40.

[0041] The sensor element 20 includes an element body 22 and leads 24. The element body 22 is formed, for example, into a flat rectangular parallelepiped shape. The element body 22 outputs a signal corresponding to the surrounding environment, such as the magnitude and direction of the surrounding magnetic field. The leads 24 extend from the element body 22. Here, two leads 24 extend from the element body 22 in a parallel position. The leads 24 are formed from metal or the like into a long, slender plate shape. The detection output of the element body 22 is output externally via the two leads 24.

[0042] The output of the sensor element 20 is transmitted via a cable 60. The cable 60 has a plurality of (here two) wires 62 and an outer covering 61. The wire 62 is a general covered wire in which a covering 64 is formed around a core wire 63. The outer covering 61 covers the two wires 62. The outer covering 61 is removed at the end of the cable 60, and the two wires 62 are exposed. The covering 64 is removed at the end of the two wires 62, and the core wire 63 is exposed. The ends of the two wires 62 are arranged along the two lead parts 24, and the respective core wires 63 are electrically and mechanically connected to the lead parts 24. Here, the core wire 63 is soldered to the lead parts 24. The core wire 63 and the lead parts 24 can also be electrically and mechanically connected by welding, crimping, etc.

[0043] The wires connected to the sensor element 20 are not necessarily bundled together using an external sheath. The wires connected to the sensor element can also be individually led outward. The number of wires connected to the sensor element can also be increased or decreased depending on the number of leads in the sensor element. It is not essential to connect the wires to the sensor element; another flexible printed circuit (FPC) or the like can be connected to the sensor.

[0044] The inner molded portion 30 is formed of resin. The inner molded portion 30 may be formed of, for example, polyamide resin, PE (polyethylene), PBT (polybutylene terephthalate), etc. The inner molded portion 30 covers the sensor element 20 .

[0045] More specifically, the inner molded portion 30 is a portion molded with resin using the sensor element 20 as an embedded component. The inner molded portion 30 includes an element accommodating portion 35 and a lead portion accommodating portion 36 .

[0046] The element housing portion 35 is formed in a rectangular parallelepiped shape. The element body portion 22 of the sensor element 20 is housed in the element housing portion 35 at one end, near one main surface. The lead portion 24 extending from the element body portion 22 passes through the element housing portion 35 and extends toward the other end of the element housing portion 35.

[0047] Lead accommodating portion 36 is provided continuously at the other end of component accommodating portion 35. Lead accommodating portion 36 includes a bottom plate portion 37 and a partition portion 38. Bottom plate portion 37 is formed in a plate shape extending from the other end of component accommodating portion 35. The two leads 24 extend from bottom plate portion 37. Partition portion 38 is provided in the middle portion of bottom plate portion 37 in the width direction to separate the two leads 24.

[0048] One main surface of the component main body 22 is exposed on one main surface of one end of the component housing portion 35. At least one (here, two) recesses 35a are formed on one main surface of the component housing portion 35. At least one (here, two) recesses 35b are formed on the other main surface of the component housing portion 35. The two leads 24 are exposed on both sides of the component housing portion 35 via these recesses 35a and 35b.

[0049] When the inner molded portion 30 is molded with the sensor element 20 as an embedded component, the exposed portions of the sensor element 20 are brought into contact with the mold surface or positioning portion of the mold assembly. Thus, the inner molded portion 30 is molded with the sensor element 20 positioned within the mold assembly. Consequently, the sensor element 20 is held at a constant position relative to the inner molded portion 30 with high precision.

[0050] It should be noted that the core wire 63 may be soldered to the lead portion 24 while the sensor element 20 is embedded in the inner molded portion 30. Alternatively, the core wire 63 may be soldered to the lead portion 24 before the sensor element 20 is embedded in the inner molded portion 30. It is not essential to mold the inner molded portion 30 with the sensor element 20 as the embedded component. Alternatively, the inner molded portion 30 may be molded into a shape suitable for embedding the sensor element 20, and the sensor element 20 may be embedded therein.

[0051] The outer molded portion 40 is formed of resin. Like the inner molded portion 30, the outer molded portion 40 can be formed of, for example, polyamide resin, PE (polyethylene), PBT (polybutylene terephthalate), or the like. It is not essential that the outer molded portion 40 be formed of the same resin as the inner molded portion 30. If the outer molded portion 40 is formed of the same resin as the inner molded portion 30, the adhesion between the two is improved.

[0052] The outer molded portion 40 covers the inner molded portion 30. The outer molded portion 40 can cover the entire circumference of the inner molded portion 30, or it can cover a portion of the inner molded portion 30. Here, the outer molded portion 40 covers the entire circumference of the inner molded portion 30, excluding the portion used for positioning. In other words, the entire circumference of the sensor element 20 is covered by at least one of the inner molded portion 30 and the outer molded portion 40. Here, the outer molded portion 40 has an outer shape that is an elongated rectangular parallelepiped. The element body 22 is embedded in the outer molded portion 40 near one end. The front end of the outer covering 61 of the cable 60 is embedded in the outer molded portion 40 near the other end. The portion of the cable 60 covered by the outer covering 61 extends outward from the other end of the outer molded portion 40. It should be noted that the outer shape of the outer molded portion 40 is not necessarily a rectangular parallelepiped.

[0053] The outer molded portion 40 is formed with holes 41, 42, 43, and 44 extending from its surface to the inner molded portion 30. Here, the hole 41 is formed at a position close to one end of one main surface of the outer molded portion 40 (see FIG. Figure 1 The hole 41 reaches the longitudinal middle portion of one main surface of the inner molded portion 30. A hole 42 is formed near one end of the other main surface of the outer molded portion 40 (see Figure 2 The hole 42 reaches the portion close to the other end of the other main surface of the inner molded portion 30. A pair of holes 43 and 44 are formed in the middle portion of the longitudinal direction of the other main surface of the outer molded portion 40 (see Figure 2 The holes 43 and 44 extend to the longitudinal middle portion of the other main surface of the inner molded portion 30. Positioning recesses 31, 32, 33, and 34 are formed on the surface of the inner molded portion 30 at positions corresponding to the holes 41, 42, 43, and 44, respectively, to be continuous with the holes 41, 42, 43, and 44.

[0054] When the outer molded portion 40 is molded using the sensor element 20 and the inner molded portion 30 as inserts, the positioning pins pass through the portions corresponding to the holes 41, 42, 43, and 44 and come into contact with the surface of the inner molded portion 30. Here, the positioning pins pass through the holes 41, 42, 43, and 44 and are embedded in the positioning recesses 31, 32, 33, and 34, thereby positioning the inner molded portion 30. Thus, with the inner molded portion 30 positioned within the mold assembly, the outer molded portion 40 is molded. Consequently, the inner molded portion 30 is precisely held in a predetermined position relative to the outer molded portion 40. The sensor element 20 held by the inner molded portion 30 is also precisely held in a predetermined position relative to the outer molded portion 40. It should be noted that the holes 41, 42, 43, and 44 and the positioning recesses 31, 32, 33, and 34 are formed in a circular shape. The holes 41 , 42 , 43 , 44 and the positioning recesses 31 , 32 , 33 , 34 may also be in other shapes, such as an ellipse, a polygon, or the like.

[0055] Annular sealing portions 51, 52, 53, 54 are formed between the inner molded portion 30 and the outer molded portion 40 to surround the holes 41, 42, 43, 44. The boundary between the inner molded portion 30 and the outer molded portion 40 is exposed behind the holes 41, 42, 43, 44. The annular sealing portions 51, 52, 53, 54 surround this exposed portion.

[0056] Annular sealing portion 51 covers the periphery of hole 41, annular sealing portion 52 covers the periphery of hole 42, annular sealing portion 53 covers the periphery of hole 43, and annular sealing portion 54 covers the periphery of hole 44. Here, annular sealing portions 51, 52, 53, 54 surround holes 41, 42, 43, 44 at intervals. Annular sealing portions 51, 52, 53, 54 may surround holes 41, 42, 43, 44 in a contacting state.

[0057] The inner and outer peripheral shapes of the annular sealing portions 51, 52, 53, and 54 are arbitrary. Here, the inner peripheral shape of each of the annular sealing portions 51, 52, 53, and 54 is formed into a circular shape. The outer peripheral shape of each of the annular sealing portions 51, 52 is formed into a circular shape. The annular sealing portions 53 and 54 are connected to form an integral body, and the outer peripheral shape of the integrated annular sealing portions 53 and 54 is an oblong. On the inner side of the aforementioned holes 41, 42, 43, and 44, the boundary between the inner molded portion 30 and the outer molded portion 40 can be exposed. The annular sealing portions 51, 52, 53, and 54 can surround this exposed portion.

[0058] The annular sealing portions 51, 52, 53, and 54 are formed of a material that is softer than the inner molded portion 30. The softness here can also be evaluated by the ease of expansion and contraction deformation, for example, it can also be evaluated by Rockwell hardness (JIS Z 2245). For example, the inner molded portion 30 can be formed of polyamide resin, PE (polyethylene), PBT (polybutylene terephthalate), etc., and the annular sealing portions 51, 52, 53, and 54 can be formed of elastic materials such as softer polyurethane resin and synthetic rubber. The outer molded portion 40 can be the same material as the inner molded portion 30, or a different material. A specific example is a case where the inner molded portion 30 and the outer molded portion 40 are formed of polyamide resin such as nylon, and the annular sealing portions 51, 52, 53, and 54 are formed of thermoplastic polyurethane resin.

[0059] The annular sealing portions 51, 52, 53, and 54 may be embedded in the surface of the inner molded portion 30, in the inner surface of the outer molded portion 40, or in both the inner molded portion 30 and the outer molded portion 40. In this embodiment, annular grooves 31g, 32g, 33g, and 34g are formed on the surface of the inner molded portion 30, surrounding the holes 41, 42, 43, and 44. The annular groove 31g is formed in the region corresponding to the annular sealing portion 51, the annular groove 32g is formed in the region corresponding to the annular sealing portion 52, and the annular grooves 33g and 34g are formed in the regions corresponding to the annular sealing portions 53 and 54. The annular grooves 31g, 32g, 33g, and 34g are formed to a depth that does not reach the sensor element 20.

[0060] The annular seal portions 51, 52, 53, and 54 are provided so as to fill the annular grooves 31g, 32g, 33g, and 34g. Figures 3 to 5 , the annular sealing portions 51, 52, 53, 54 are shown as being flush with and continuous with the inner molded portion 30. However, the annular sealing portions 51, 52, 53, 54 may be recessed from the outer surface of the inner molded portion 30 or may protrude from the outer surface of the inner molded portion 30.

[0061] The inner molded portion 30 and the annular sealing portions 51, 52, 53, 54 are double molded (including the case of so-called two-color molding) or insert molded, with the inner molded portion 30 being the primary molded portion and the annular sealing portions 51, 52, 53, 54 being the secondary molded portions. Figure 7As shown, the inner molded portion 30 for holding the sensor element 20 is prepared. Annular grooves 31g, 32g, 33g, and 34g are formed in the inner molded portion 30. The inner molded portion 30, which holds the sensor element 20, is placed within the mold 70 for molding the annular sealing portions 51, 52, 53, and 54. In this state, the molten material for molding the annular sealing portions 51, 52, 53, and 54 flows into the annular grooves 31g, 32g, 33g, and 34g. The molten material solidifies within the annular grooves 31g, 32g, 33g, and 34g, thereby molding the annular sealing portions 51, 52, 53, and 54.

[0062] In order to facilitate the flow of molten material into the plurality of annular grooves 31g, 32g, 33g, 34g formed in the inner molding portion 30, the plurality of annular grooves 31g, 32g, 33g, 34g are connected by connecting grooves 30g1, 30g2. Here, the annular groove 31g on one main surface side of the inner molding portion 30 and the annular grooves 33g, 34g on the other main surface side are connected by the connecting groove 30g1 on one side of the inner molding portion 30 (see Figure 4 The annular groove 32g on the other main surface side of the inner molded portion 30 is connected to the annular grooves 33g and 34g by a connecting groove 30g2 provided on the other main surface side of the inner molded portion 30 (see Figure 5 ). Therefore, in the mold 70, when the molten material flows into any of the annular grooves 31g, 32g, 33g, 34g and the connecting grooves 30g1 and 30g2, the molten material can easily flow into the multiple annular grooves 31g, 32g, 33g, and 34g. In this case, the connecting portion 50a1 is formed in the portion of the surface of the inner molded portion 30 where the connecting groove 30g1 is formed, and the connecting portion 50a2 is formed in the portion where the connecting groove 30g2 is formed. The connecting portions 50a1 and 50a2 are formed of the same material as the annular sealing portions 51, 52, 53, and 54. The connecting portion 50a1 connects the annular sealing portion 51 with the annular sealing portions 53 and 54, and the connecting portion 50a2 connects the annular sealing portion 52 with the annular sealing portions 53 and 54.

[0063] It should be noted that when the inner forming portion 30 and the annular sealing portions 51, 52, 53, and 54 are double-formed, the surface of the inner forming portion 30 on the other side where the above-mentioned annular grooves 31g, 32g, 33g, 34g and connecting grooves 30g1 and 30g2 are not formed can be formed by a common mold.

[0064] When the outer molded portion 40 is molded using the inner molded portion 30 and the annular sealing portions 51, 52, 53, 54 formed as described above as inserts, Figure 3 and Figure 8As shown, annular sealing portions 51, 52, 53, and 54 are provided between the inner molded portion 30 and the outer molded portion 40, surrounding the holes 41, 42, 43, and 44. For example, it is conceivable that when the outer molded portion 40 is molded, the annular sealing portions 51, 52, 53, and 54 soften and compress due to heat, clinging to the inner and outer molded portions 30 and 40 and filling the space between them. As a result, the annular sealing portions 51, 52, 53, and 54 effectively seal the space between the inner and outer molded portions 30 and 40, surrounding the holes 41, 42, 43, and 44. It should be noted that since the inner molded portion 30 is formed from a hard resin such as polyamide resin, it is less likely to deform during the molding of the outer molded portion 40, thereby maintaining the sensor element 20 in a constant position within the inner molded portion 30. Furthermore, even if the inner and outer molded parts 30 and 40 contract or expand during or after cooling, the annular sealing portions 51, 52, 53, and 54 between the inner and outer molded parts 30 and 40 will readily deform to follow this contraction or expansion, maintaining the seal therebetween. Consequently, the seal between the inner and outer molded parts 30 and 40, surrounding the holes 41, 42, 43, and 44, can be well maintained.

[0065] According to the composite molded component constructed as described above, even if at least one of the inner molded portion 30 and the outer molded portion 40 deforms due to thermal contraction or thermal expansion, the annular sealing portions 51, 52, 53, 54 can deform to follow the deformation. Thus, the portion between the inner molded portion 30 and the outer molded portion 40 surrounding the hole is kept sealed by the annular sealing portions 51, 52, 53, 54. This further improves the sealing performance between the inner molded portion 30 and the outer molded portion 40. Furthermore, the annular sealing portions 51, 52, 53, 54 are provided in the portion surrounding the holes 41, 42, 43, 44 relative to the inner molded portion 30 and the outer molded portion 40, thereby ensuring the strength required for the composite molded component 10.

[0066] Forming the inner molded portion 30 and the outer molded portion 40 from a polyamide resin provides strength to the composite molded component 10. Furthermore, forming the annular sealing portions 51, 52, 53, and 54 from a polyurethane resin improves sealing performance between the inner molded portion 30 and the outer molded portion 40 and around the holes 41, 42, 43, and 44.

[0067] Furthermore, the annular sealing portions 51, 52, 53, 54 are provided so as to fill the annular grooves 31g, 32g, 33g, 34g of the inner molded portion 30. Therefore, when forming the outer molded portion 40, it is easy to maintain the annular sealing portions 51, 52, 53, 54 surrounding the holes 41, 42, 43, 44. This ensures good sealing performance.

[0068] Furthermore, when the inner molded portion 30 and the annular seal portions 51 , 52 , 53 , 54 are formed by double molding or insert molding, the adhesion between the inner molded portion 30 and the annular seal portions 51 , 52 , 53 , 54 is improved, and the sealing performance is further improved.

[0069] In this case, when the plurality of annular seal portions 51 , 52 , 53 , 54 are connected by the connecting portions 50 a 1 , 50 a 2 , the plurality of annular seal portions 51 , 52 , 53 , 54 can be easily formed in a state of being connected by the connecting portions 50 a 1 , 50 a 2 .

[0070] It should be noted that it is also possible to Figure 9 As shown in the modified example, an annular seal portion 151 corresponding to the annular seal portion 51 protrudes from the inner molded portion 30. The annular seal portion 151 may also have a shape that gradually narrows toward the distal end. Thus, when the outer molded portion 40 is molded, the distal end of the annular seal portion 151 is heated and easily deformed. This facilitates maintaining the distal end of the annular seal portion 151 in close contact with the outer molded portion 40.

[0071] It should be noted that the configurations described in the above-mentioned embodiments and modifications may be appropriately combined as long as they do not contradict each other.

[0072] [Experimental example]

[0073] In practice, it was confirmed that good sealing properties were obtained when manufacturing the composite molded component 10 in which the inner molded portion 30 and the outer molded portion 40 were formed of nylon and the annular seal portions 51 , 52 , 53 , 54 were formed of polyurethane resin.

[0074] Description of labels

[0075] 10 Composite molded parts

[0076] 20 sensor element (internal parts)

[0077] 22 Component body

[0078] 24 Lead

[0079] 30 inner forming part

[0080] 30g1, 30g2 connecting slot

[0081] 31, 32, 33, 34 Positioning recess

[0082] 31g, 32g, 33g, 34g ring groove

[0083] 35 Component storage area

[0084] 35a, 35b concave portion

[0085] 36 Lead wire receiving area

[0086] 37 bottom plate

[0087] 38 Divider

[0088] 40 outer forming part

[0089] Holes 41, 42, 43, and 44

[0090] 50a1, 50a2 connection portion

[0091] 51, 52, 53, 54 annular sealing parts

[0092] 60 cables

[0093] 61 External cladding

[0094] 62 Wires

[0095] 63 core wire

[0096] 64 Coating

[0097] 70 mold

[0098] 151 Annular sealing portion.

Claims

1. A composite molded component comprising: Internal components; an inner forming portion covering the inner component; and The outer forming portion covers the inner forming portion, A hole reaching the inner forming portion is formed in the outer forming portion, An annular sealing portion surrounding the hole is provided between the inner forming portion and the outer forming portion. The annular seal portion is formed of a material that is softer than the inner molded portion.

2. The composite formed component according to claim 1, wherein: The inner molded portion and the outer molded portion are formed of polyamide resin, The annular seal portion is formed of polyurethane resin.

3. The composite formed component according to claim 1, wherein: An annular groove surrounding the hole is formed on the surface of the inner molded portion. The annular sealing portion is provided so as to fill the annular groove.

4. The composite formed component according to claim 2, wherein: An annular groove surrounding the hole is formed on the surface of the inner molded portion. The annular sealing portion is provided so as to fill the annular groove.

5. The composite molded component according to any one of claims 1 to 4, wherein The inner molded portion and the annular seal portion are double molded or insert molded, with the inner molded portion serving as a primary molded portion and the annular seal portion serving as a secondary molded portion.

6. The composite molded component according to any one of claims 1 to 4, wherein The annular sealing portion is formed into a plurality of A connecting portion formed of the same material as that of the annular sealing portion is provided so as to connect the plurality of annular sealing portions.

7. The composite formed component according to claim 5, wherein: The annular sealing portion is formed into a plurality of A connecting portion formed of the same material as that of the annular sealing portion is provided so as to connect the plurality of annular sealing portions.

8. The composite molded component according to any one of claims 1 to 4, wherein The annular sealing portion protrudes from the inner molded portion.

9. The composite formed component according to claim 5, wherein: The annular sealing portion protrudes from the inner molded portion.

10. The composite formed part according to claim 6, wherein: The annular sealing portion protrudes from the inner molded portion.

11. The composite formed component according to claim 7, wherein: The annular sealing portion protrudes from the inner molded portion.

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