JP2011249149A - Electric component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure water-proof property even if an electric component is used at a place where an environment is considerably varied, while maintaining work efficiency in connecting a lead terminal and a terminal.SOLUTION: An electric component comprises: a switch body 3 in which a terminal 32 is exposed from a bottom of a housing 31; a holding member 2 which has wall parts (bottom wall part 211, and side wall part 212) defining a space part 210 which is opened at least one side, between the holding member and the bottom of the housing 31, in which a lead terminal 25 connected to a terminal 32 within the space part 210 is buried and which holds the switch body 3; and a sealing material 5 with which the space part 210 is filled and which covers a connecting part of the terminal 32 and the lead terminal 25. The electric component is characterized in that the sealing material 5, the wall parts and the bottom of the housing 31 are brought into tight contact, and a recess 51 is formed inside an outer circumference, along the wall parts and the bottom of the housing 31, of the sealing material 5 at one side where the space part 210 is opened.

Description

  The present invention relates to an electrical component, for example, an electrical component that requires waterproofing, such as an in-vehicle microswitch device.

  Conventionally, in a switch device in which a terminal projecting from one end of a switch body is connected to a lead wire and this connection portion is waterproofed with a sealing material, the terminal is surrounded by the case of the switch body and the lower end is An open skirt portion is extended, a window hole for connecting the terminal and the lead wire is provided on a side surface of the skirt portion, and a lower end of the skirt portion is formed by a lid having a through hole through which the lead wire is inserted. There has been proposed one that allows the opening to be closed (see, for example, Patent Document 1). In this switch device, after a lead wire previously inserted into the through hole is soldered to the terminal, a sealing material for sealing the soldering portion is formed by closing the lower end opening of the skirt portion with a lid. It can be injected from the window hole, and the sealing material can be injected in a stable posture.

Japanese Patent No. 3038283

  In the above-described conventional switch device, the soldering portion is sealed by injecting a sealing material for waterproofing treatment into the inner portion surrounded by the skirt portion and the cover body, If it is used in a place where the environment changes drastically, such as for in-vehicle use, the adhesion between the switch body and the sealing material cannot be maintained, and there is a risk that moisture may enter the switch body. Further, in the conventional switch device, the lead wire is soldered to the terminal in a state where the lead wire is inserted into the through hole of the lid body that closes the skirt portion, so that the position of the lead wire is difficult to determine, and these are connected. There is a problem that the work at the time becomes complicated.

  The present invention has been made in view of such circumstances, and improves the work efficiency when connecting the lead terminal and the terminal, and also ensures waterproofness even when used in a place where the environment changes drastically. An object of the present invention is to provide an electrical component that can be used.

  An electrical component of the present invention has a wall portion that defines a space portion that is open at least on one side between a detection member from which a terminal is exposed from the bottom portion of the housing and the bottom portion of the housing, and the inside of the space portion A sealing member that embeds a lead terminal connected to the terminal and holds the detection member; and a sealing material that fills the space and covers a connection portion between the terminal and the lead terminal. The material, the wall and the bottom of the housing are in close contact with each other, inside the outer peripheral portion along the wall of the sealing material and the bottom of the housing on the one side where the space is open. A recess is formed.

  According to the electrical component, since the lead terminal connected to the terminal of the detection member is embedded in the holding member, the position of the lead terminal can be determined at a fixed position, so the lead terminal and the terminal are connected. Work efficiency can be improved. In addition, since the recess is formed in a part of the sealing material on one side where the space portion is open, the volume of the sealing material is reduced to reduce the shrinkage amount, and the shrinking direction of the sealing material is changed. Because it can be controlled, peeling between the sealing material and the wall and the bottom of the housing can be made difficult to occur, and waterproofness can be secured even when used in a place where the environment changes drastically. It becomes.

  In the electrical component, the bottom of the housing on the one side is provided with a plurality of recesses that become narrower toward the space, and the recess is filled with the sealing material. preferable. In this case, since a recess portion whose width becomes narrower toward the space portion side is provided at the bottom portion of the housing, a change in the sealing material can be mechanically suppressed by the recess portion. Peeling between the material and the bottom of the housing can be effectively prevented, and the waterproofness can be further improved.

  In the electrical component, the wall portion includes a facing wall portion that faces the bottom portion of the housing, and a pair of side wall portions that intersect with the facing wall portion and face each other, and the bottom portion of the housing in the side wall portion. It is preferable to provide a protruding portion that protrudes toward the space portion in the vicinity. In this case, since the protruding portion that protrudes toward the space portion is provided near the bottom of the housing in the side wall portion, the sealing material can be filled around the protruding portion. Adhesion with the material can be improved, and waterproofing can be further improved.

  In the electrical component, the holding member is formed with a second wall portion having an opening communicating with the space portion on the other side opposite to the one side, and is exposed to the opening. It is preferable to provide a recessed part inside the outer peripheral part along the said opening part of a sealing material. In this case, since the concave portion is provided in a part of the sealing material exposed at the opening communicating with the space portion on the other side, the volume of the sealing material is also reduced on the other side to reduce the contraction amount. At the same time, since the shrinkage direction of the sealing material can be controlled, it is possible to prevent the separation between the wall portion of the sealing material and the bottom portion of the housing in a balanced manner from both sides.

  In particular, in the electrical component described above, the opening of the second wall is divided into a plurality of portions, and a recess is provided on the inner side of the outer periphery along the opening of the sealing material exposed to each opening. It is preferable. In this case, since the opening provided in the second wall is divided into a plurality of parts, the strength of the second wall can be ensured, and the opening is provided in the second wall. In this case, it is possible to prevent the strength of the holding member from being lowered.

  In the electrical component, the bottom of the housing on the other side is provided with a plurality of recesses whose width becomes narrower toward the space, and the recess is filled with the sealing material, It is preferable that a second projecting portion projecting toward the one side is formed on the second wall portion between the bottom portion of the housing and the opening portion. In this case, since a recess portion whose width becomes narrower toward the space portion side is provided at the bottom portion of the housing, a change in the sealing material can be mechanically suppressed by the recess portion. Peeling between the material and the bottom of the housing can be effectively prevented, and the waterproofness can be further improved. In addition, since the second protrusion is formed between the bottom of the housing and the opening in the second wall, a sealant can be filled around the second protrusion. Adhesion between the bottom of the housing and the sealing material can be improved, and waterproofing can be further improved.

  In the electrical component, it is preferable that a flange portion positioned in the space portion is formed on the wall portion facing the bottom portion of the housing, and the lead terminal protrudes from the flange portion toward the space portion. In this case, since the collar portion positioned in the space portion is formed on the wall portion facing the bottom portion of the housing, the sealing material can be filled around the collar portion, so that the holding member and the sealing material Adhesion with can be improved. In addition, since the lead terminal protrudes from the flange portion, even if peeling occurs between the holding member and the sealing material and water enters the space portion, the flange portion causes water to flow toward the lead terminal side. It becomes possible to make it difficult to enter.

  In the electrical component, the lead terminal is formed with a penetrating portion penetrating to the one side, while the tip of the terminal protruding from the bottom of the housing is bent toward the other side, and the penetrating portion It is preferable that the lead terminal is connected to the lead terminal. In this case, since the tip of the terminal is inserted into the penetration portion of the lead terminal, the sealing material can be filled in the state where the tip of the terminal is inserted into the penetration portion of the lead terminal. Can be securely connected.

  For example, the electrical component can be applied when the synthetic resin constituting the sealing material has a higher coefficient of thermal expansion than the synthetic resin constituting the holding member and the housing. In this case, even when the thermal expansion coefficient of the synthetic resin constituting the sealing material is larger than that of the holding member or the like, the adhesion between the sealing material and the holding member can be appropriately increased, and the waterproof property is improved. It becomes possible to improve.

  In the electrical component, it is preferable that the distal end side of the holding member is a connector portion. In this case, since the connector portion is formed integrally with the holding member, it is possible to simplify the connection work for the connected portion to which the electrical component is connected.

  According to the electrical component, since the lead terminal connected to the terminal of the detection member is embedded in the holding member, the position of the lead terminal can be determined at a fixed position, so the lead terminal and the terminal are connected. Work efficiency can be improved. In addition, since the recess is formed in a part of the sealing material on one side where the space portion is open, the volume of the sealing material is reduced to reduce the shrinkage amount, and the shrinking direction of the sealing material is changed. Because it can be controlled, peeling between the sealing material and the wall and the bottom of the housing can be made difficult to occur, and waterproofness can be secured even when used in a place where the environment changes drastically. It becomes. As a result, it is possible to improve the work efficiency when connecting the lead wire and the terminal, and to ensure waterproofness even when used in a place where the environment changes drastically.

1 is a perspective view of a switch device as an electrical component according to an embodiment of the present invention. It is the front view (a), back view (b), and top view (c) of the holding member of the switch apparatus concerning the said embodiment. It is the front view (a) and back view (b) of the switch main body of the switch apparatus concerning the said embodiment. It is a perspective view in the state where a switch body was built in a holding member of a switch device concerning the above-mentioned embodiment. It is a perspective view of the sealing material with which the sealing material injection | pouring part of the switch apparatus concerning the said embodiment was filled. It is the front view (a), side view (b), back view (c), and bottom view (d) of the sealing material with which the sealing material injection | pouring part of the switch apparatus which concerns on the said embodiment was filled.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the electrical component according to the present embodiment is preferably used for, for example, a vehicle-mounted microswitch device used in a place where the environmental change is severe, but is not limited thereto, and the environmental change is not limited thereto. It is possible to apply to any electric component used in a place where the temperature is severe. Below, the case where the electrical component which concerns on this Embodiment is applied to the switch apparatus used in a place where an environmental change is severe is demonstrated.

  FIG. 1 is a perspective view of a switch device 1 as an electrical component according to an embodiment of the present invention. As shown in FIG. 1, the switch device 1 according to the present embodiment incorporates a switch body 3 as a detection member into one end (upper end) of a holding member 2 formed by molding an insulating resin material, By injecting the sealing material 5 into the sealing material injection portion 4 formed on the lower side of the switch body 3, a connection portion between a terminal 32 of the switch body 3 and a lead terminal 25 of the holding member 2 described later is sealed. It stops, and the waterproofness in the said connection part is ensured. The other end portion (lower end portion) of the holding member 2 opposite to the switch body 3 is formed by being bent to the side, and a connector portion 6 in which a space for exposing the lead terminal 25 is formed is formed therein. It is composed.

  FIG. 2 is a front view (a), a rear view (b), and a top view (c) of the holding member 2 of the switch device 1 according to the present embodiment. The holding member 2 is formed of, for example, polybutylene terephthalate (PBT). The holding member 21 holds the switch body 3 at the upper end portion thereof, and extends from the lower end portion of the holding portion 21 and is connected to the connector portion 6. It has the connection part 22, and the fixing | fixed part 23 which is extended and provided from the side surface of these holding | maintenance parts 21 and the connection part 22, and fixes the switch apparatus 1 to a to-be-attached surface. Further, on the back side of the connecting portion 22, a protruding piece 24 that is inserted into a recess provided on the mounting surface and positions the switch device 1 is provided.

  The holding portion 21 opens to the upper side and defines a space portion 210 opened to one side (the front side of the paper shown in FIG. 2 (a)), a bottom wall portion 211 as an opposing wall portion, and the bottom wall It has a pair of side wall portions 212 that intersect with the portion 211 in a substantially orthogonal state and face each other, and a back wall portion 213 as a second wall portion. The bottom wall 211 is provided with a pair of protruding pieces 215 having flanges 214 at the upper end thereof, and one end (upper end) of the lead terminal 25 embedded in the holding member 2 from the upper surface of the flanges 214. ) Is exposed. The lead terminal 25 is made of a metal material (metal plate material), and is insert-molded when the holding member 2 is manufactured. The lead terminal 25 passes through the inside of the coupling portion 22 and enters the other end ( The bottom edge is exposed. A through-hole 25a is formed in the plate-like portion exposed from the flange portion 214 of the lead terminal 25, and a tip end portion of a terminal 32 (32a, 32b) of the switch body 3 described later is inserted and soldered. It is supposed to be.

  A protruding portion 212 a that protrudes toward the space portion 210 is provided at a position near the center of the pair of side wall portions 212. In addition, a protrusion 213 a that protrudes toward the space 210 is provided near the center of the back wall 213. These protrusions 212a and protrusions 213a are provided continuously, and generally have a rib shape protruding over the entire inner wall surface of the space 210. Above these protrusions 212a and 213a, a pair of support pieces 212b for supporting the switch body 3 mounted in the space 210 is provided. These support pieces 212b are provided so as to slightly protrude from the side wall portion 212 and the back wall portion 213 to the space portion 210 side. The projecting widths of these support pieces 212b are smaller than the projecting portions 212a and 213a.

  A plurality (two in this embodiment) of openings 213b are provided below the protrusions 213a in the back wall 213. Between these openings 213b, a column part 213c protruding toward the space 210 is provided. Thus, by providing the column part 213c between the opening parts 213b, even when providing the opening part 213b in the back wall part 213, it can prevent that the intensity | strength of the holding member 2 falls.

  FIG. 3 is a front view (a) and a rear view (b) of the switch body 3 of the switch device 1 according to the present embodiment. The switch body 3 includes, for example, a generally box-shaped housing 31 formed of an insulating resin material, and a plurality of (embodiment 1) embedded in the housing 31 so that a part protrudes from the bottom of the housing 31. The three terminals 32 (terminals 32 a, 32 b, 32 c), a lever part 33 rotatably attached to one side wall part of the housing 31, and the inside of the housing 31 in response to a pressing operation on the lever part 33. The slider includes an operation protrusion 35 that slides and a cover 34 that is attached to the outer periphery of the operation protrusion 35 for waterproofing and is made of a rubber member that can be elastically restored. Yes. In the present embodiment, the housing 31 includes a lower case as a wafer in which a terminal 32 made of a metal material is embedded by insert molding, and an upper case integrated with the lower case. Here, the lower case is formed of polyphenylene sulfide resin (PPS), and the upper case in which depressions 310 and 311 described later are formed is formed of polybutylene terephthalate resin (PBT). In the switch body 3, the combination of the terminals 32a to 32c is changed according to the position of the slider (operation protrusion 35) accompanying the pressing operation on the lever portion 33, and a signal corresponding to the pressing operation is externally transmitted. It is configured to allow output. In the present embodiment, the terminal 32a and the terminal 32c are in a conductive state (on state) during a pressing operation on the lever portion 33, and the terminal 32a and the terminal 32c are in a non-pressing operation (initial state). It becomes a non-conduction state (off state).

  At the bottom of the housing 31, the front side of the page shown in FIG. 3A, that is, the opening side of the space 210 of the holding part 21, faces the bottom wall 211 side of the holding part 21, that is, the terminal 32 side. A plurality of (three in the present embodiment) depressions 310 (depressions 310a, 310b, 310c) are provided. Similarly, at the bottom of the housing 31, the front side of the paper shown in FIG. 3B, that is, the back wall 213 side of the holding part 21, the bottom wall part 211 side of the holding part 21, that is, the terminal 32 side. A plurality (three in the present embodiment) of the recessed portions 311 (recessed portions 311a, 311b, 311c) are provided which become narrower in width.

  Terminals 32 (terminals 32a and 32c) protruding from the bottom of the housing 31 are bent at the lower end thereof to the back side of the paper surface shown in FIG. 3 (a) (the front side of the paper surface shown in FIG. 3 (b)). When the switch body 3 is incorporated in the holding member 2, the distal end portion (more specifically, the distal end portions of the terminals 32 a and 32 c) is inserted into the through portion 25 a of the lead terminal 25. Note that the terminal 32b is not used in the present embodiment, and thus is cut off halfway without being bent.

  FIG. 4 is a perspective view of a state in which the switch body 3 is incorporated in the holding member 2 of the switch device 1 according to the present embodiment. As shown in FIG. 4, the switch body 3 is assembled with the bottom surface of the housing 31 supported by a pair of support pieces 212b. At this time, the switch body 3 is held by the holding member 2 in a state where the lever portion 33 extends upward and the terminals 32 a and 32 c are inserted through the through portions 25 a of the lead terminals 25. The width of the side surface of the housing 3 is substantially the same as the width between the side wall portions 212 of the holding portion 21, and the side surface of the housing 3 is held in a state of being sandwiched between the inner walls of the side wall portion 212.

  The sealing material injection part 4 is formed between the bottom surface of the housing 31 of the switch body 3 incorporated in this way and the bottom wall part 211 of the holding part 21. And the sealing material 5 is inject | poured into the sealing material injection | pouring part 4 formed in this way. In this case, as described above, since the switch body 3 is incorporated with the bottom surface of the housing 31 supported by the pair of support pieces 212b, the sealing material 5 includes the bottom surface of the housing 31 and the side wall portion. In addition to filling the space between the protruding portion 212a of 212 and the lower portion of the protruding portion 212a, it is filled and the adhesiveness between the bottom of the switch body 3 (housing 31) and the sealing material 5 is filled. It is possible to improve the waterproofness. In particular, the sealing material 5 is also filled in the depressions 310 and 311 provided on the bottom surface of the housing 31, so that the change of the sealing material 5 can be mechanically suppressed, and the switch body 3 (housing 31). The adhesion between the bottom and the sealing material 5 can be improved (see FIG. 1). Further, since the bottom wall portion 211 is provided with the protruding piece 215 having the flange portion 214, the sealing material 5 wraps around and fills the upper side and the lower side of the flange portion 214, and is retained. The adhesion between the member 2 (bottom wall portion 211) and the sealing material 5 can be improved. Furthermore, since the lead terminal 25 is protruded from the flange portion 214, provisional separation occurs between the holding member 2 (bottom wall portion 211) and the sealing material 5, and water enters the space portion 210. Even in such a case, it is possible to make it difficult for water to enter the lead terminal 32 side by the flange portion 214. Further, since the terminals 32 a and 32 c are held by the holding member 2 in a state where the terminals 32 a and 32 c are inserted through the through portions 25 a of the lead terminals 25, the sealing material 5 is connected to the through portions 25 a of the lead terminals 25 and the terminals of the switch body 3. Thus, the lead terminal 25 and the terminal 32 can be surely connected to each other.

  The sealing material 5 injected into the sealing material injection part 4 is made of an insulating resin material having adhesiveness (in this embodiment, a polyester resin). The polyester resin constituting the sealing material 5 has a characteristic that the coefficient of thermal expansion is larger than that of PBT and PPS constituting the housing 31 of the switch body 3 and PBT constituting the holding member 2. And in the switch apparatus 1 which concerns on this Embodiment, as shown in FIG. 1, the sealing material 5 is in the center part of the sealing material 5 inject | poured into the sealing material injection | pouring part 4, ie, a bottom wall part. 211, the side wall portion 212, and the switch body 3 are filled so that the concave portion 51 is formed inside the outer peripheral portion along the bottom portion of the housing 31. Similarly, the sealing material 5 is filled so that the recessed part 52 is formed in the center part of the opening part 213b formed in the back wall part 213, ie, the inner side of the outer peripheral part along the opening part 213b. (Refer FIG.6 (c)). Specifically, the switch device 1 in the state shown in FIG. 4 is placed in a pair of molds (jigs) having convex portions corresponding to the concave portions 51 and 52, and is heated and melted thermoplastic resin ( Hot melt) is injected into the space 210 (sealing material injection part 4) formed on the lower side of the switch body 3 through a hole provided in the mold. When the switch device 1 is taken out of the mold after the resin is solidified, the switch device 1 in a state where the sealing material 5 shown in FIG. 1 is filled in the sealing material injection portion 4 can be obtained.

  Here, the shape of the sealing material 5 filled in the sealing material injection part 4 in this way will be described with reference to FIGS. 5 and 6. FIG. 5 is a perspective view of the sealing material 5 filled in the sealing material injection part 4 of the switch device 1 according to the present embodiment. FIG. 6 is a front view (a), a side view (b), a rear view (c), and a bottom view (shown) of the sealing material 5 filled in the sealing material injection part 4 of the switch device 1 according to the present embodiment. d). 5 and 6, the sealing material 5 filled in the sealing material injecting portion 4 is extracted for convenience of explanation. Actually, as shown in FIG. Does not exist as.

  As shown in FIGS. 5, 6 (a) and 6 (c), recesses 51 and 52 are provided on the surface of the sealing material 5 filled in the sealing material injection part 4. The concave portions 51 and 52 are provided on the surface of the sealing material 5 as described above. First, the volume of the sealing material 5 filled in the sealing material injection part 4 is reduced, and secondly, the sealing material 5 is provided. This is because the contraction direction of the switch is also directed toward the close contact portion (the bottom portion of the housing 31 of the switch body 3 or the bottom wall portion 211 of the holding member 2). As in the former case, by reducing the volume of the sealing material 5 itself, the amount of shrinkage of the entire sealing material 5 can be reduced, and the force to be peeled off from the contact portion can be suppressed. In addition, as in the latter case, the sealing material 5 at the close contact portion corresponding to the inner wall portion on the side of the recesses 51 and 52 is maintained in the close contact state by causing the shrinkage direction of the sealant 5 to be directed toward the close contact portion side. It is possible to suppress the force to peel off from the close contact portion. Temporarily, when not providing the recessed parts 51 and 52, the shrinkage | contraction direction of the sealing material 5 will be limited to the direction which peels from a contact part, and it will become difficult to maintain a contact state. Thus, by providing the recesses 51 and 52 on the surface of the sealing material 5, the adhesion between the switch body 3 (housing 31) and the sealing material 5, and the holding member 2 (bottom wall portion 211) Adhesiveness with the sealing material 5 can be improved, peeling between the switch body 3 (housing 31) and the sealing material 5, and between the holding member 2 (bottom wall portion 211) and the sealing material 5 Since peeling can be made difficult to occur, waterproofness can be ensured even when used in a place where environmental changes are severe.

  6A and 6C, a plurality of protruding pieces 53 (53a, 53b, 53c) injected into the hollow portion 310 of the housing 31 are provided on the upper surface portion of the sealing material 5 so as to be hollow. A plurality of protruding pieces 54 (54a, 54b, 54c) injected into the portion 311 are provided. Moreover, the recessed part 55 (55a, 55b) formed according to the protrusion part 212a of the side wall part 212 of the holding | maintenance part 210 in the side part of the sealing material 5 shown to Fig.6 (a), (b), (c). And a recess 56 formed in accordance with the protruding portion 213a of the back wall portion 213 of the holding portion 21 is provided on the back surface portion of the sealing material 5 shown in FIG. Furthermore, a concave portion 57 formed on the side surface portion (lower surface portion) of the sealing material 5 shown in FIGS. 5, 6 </ b> B, and 6 </ b> D according to the protruding piece 215 of the bottom wall portion 211 of the holding portion 21. (57a, 57b) are provided.

  As described above, according to the switch device 1 according to the present embodiment, since the lead terminal 25 connected to the terminal 32 of the switch body 3 is embedded in the holding member 2, the position of the lead terminal 25 is determined. Since it can be determined at a fixed position, the working efficiency when connecting the lead terminal 25 and the terminal 32 can be improved. Moreover, since the recessed part 51 is formed in a part of sealing material 5 in the one side in which the space part 210 is opening, while reducing the volume of the sealing material 5 and reducing a shrinkage | contraction amount, the sealing material 5 can be controlled, so that separation between the sealing material 5 and the bottom wall portion 211 and the side wall portion 212 of the holding portion 21 and the bottom portion of the housing 31 of the switch body 3 is difficult to occur. It is possible to ensure waterproofness even when used in a place where the environment changes drastically.

  Further, in the switch device 1 according to the present embodiment, the holding member 2 is formed with a back wall 213 having an opening 213b communicating with the space 210 on the other side opposite to the one side. Since the concave portion 52 is provided in a part of the sealing material 5 exposed to the opening 213b, the volume of the sealing material 5 is reduced on the other side to reduce the shrinkage amount and the shrinkage of the sealing material 5 Since the direction can be controlled, peeling between the sealing material 5 and the bottom wall portion 211 and the side wall portion 212 of the holding portion 21 and the bottom portion of the housing 31 of the switch body 3 is difficult to occur from both sides. It becomes possible to do.

  In particular, in the switch device 1 according to the present embodiment, since the opening 213b provided in the back wall 213 is divided into a plurality of parts, the strength of the back wall 213 can be ensured, and the back wall Even when the opening 213b is provided in 213, it is possible to prevent the strength of the holding member 2 from decreasing.

  In addition, this invention is not limited to the said embodiment, It can change and implement variously. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, the switch device 1 is described as an example of the electric component according to the present embodiment, and the switch body 3 is described as an example of the detection member. The content is not limited to this, and can be changed as appropriate. For example, the present invention can be applied to a position sensor using a variable resistor as a detection member, a magnetic switch using a magnet and a magnetic detection element, or the like.

1 Switch device (electrical parts)
2 holding member 21 holding part 210 space part 211 bottom wall part 212 side wall part 212a protrusion part 212b support piece 213 back wall part 213a protrusion part 213b opening part 213c pillar part 214 flange part 215 protrusion piece 22 connecting part 23 fixing part 24 protrusion piece 25 Lead terminal 25a Penetration part 3 Switch body (detection member)
31 Housing 310 (310a, 310b, 310c) Depressed part 311 (311a, 311b, 311c) Depressed part 32 (32a, 32b, 32c) Terminal 33 Lever part 34 Cover part 4 Sealing material injection part 5 Sealing material 51, 52 Recess 53 (53a, 53b, 53c) Protruding piece 54 (54a, 54b, 54c) Protruding piece 55 (55a, 55b) Recess 56 Recess 57 (57a, 57b) Recess 6 Connector part

Claims (10)

A lead terminal having a wall portion defining a space portion at least one side of which is opened between the detection member from which the terminal is exposed from the bottom portion of the housing and the bottom portion of the housing, and is connected to the terminal in the space portion A holding member that holds the detection member and a sealing material that fills the space and covers a connection portion between the terminal and the lead terminal,
The sealing material, the wall portion, and the bottom portion of the housing are in close contact with each other, and the outer peripheral portion along the wall portion of the sealing material and the bottom portion of the housing on the one side where the space portion is open. An electrical component, characterized in that a recess is formed inside.   The bottom portion of the housing on the one side is provided with a plurality of recesses that become narrower toward the space, and the recess is filled with the sealing material. The electrical component according to 1.   The wall portion includes a facing wall portion that faces the bottom portion of the housing and a pair of side wall portions that intersect with the facing wall portion and face each other, and the space portion near the bottom portion of the housing in the side wall portion. 3. The electric component according to claim 1, further comprising a protruding portion protruding to the side.   In the holding member, a second wall portion having an opening communicating with the space portion is formed on the other side opposite to the one side, and the sealing material exposed to the opening is concerned. The electrical component according to any one of claims 1 to 3, wherein a concave portion is provided inside the outer peripheral portion along the opening.   The opening portion of the second wall portion is divided into a plurality of portions, and a recess is provided inside the outer peripheral portion along the opening portion of the sealing material exposed to each opening portion. 4. The electrical component according to 4.   The bottom of the housing on the other side is provided with a plurality of dents whose width decreases toward the space, and the dent is filled with the sealing material and the second wall. 6. The electrical component according to claim 4, wherein a second projecting portion projecting toward the one side is formed between the bottom of the housing and the opening.   The said wall part facing the bottom part of the said housing formed the collar part located in the said space part, and protruded the said lead terminal to the said space part side from the said collar part. The electrical component according to claim 6.   The lead terminal is formed with a penetrating portion penetrating to the one side, while the tip of the terminal protruding from the bottom portion of the housing is bent toward the other side, inserted through the penetrating portion, and the lead The electrical component according to any one of claims 1 to 7, wherein the electrical component is connected to a terminal.   The electrical component according to any one of claims 1 to 8, wherein the synthetic resin constituting the sealing material has a higher coefficient of thermal expansion than the synthetic resin constituting the holding member and the housing.   The electrical component according to claim 1, wherein a front end side of the holding member is a connector portion.

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