JP2012248425A - Terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the amount of use of an adhesive in such a structure that a surface attaching-type terminal is attached to the surface of an object with the adhesive.SOLUTION: A terminal 10 includes: a base 12, a contact section 16 extending from the base 12 and having an electrical contact 14; and an adhesive support section 18 which is provided to the base 12 separately from the contact section 16 and can support an adhesive for adhering the base 12 to an object. The adhesive support section 18 includes a cantilevered anchoring section 28 extending below the base 12. Non-point symmetric openings 30 extending between the base 12 and the anchoring section 28 are formed around the anchoring section 28. The anchoring section 28 includes: a first end 28a connected to the base 12; and a second end 28b as a free end disposed below a cutout 32 of the base 12. The adhesive for adhering the base 12 to an object can flow through the opening 30 before solidification. At least part of the anchoring section 28 engages with the adhesive having passed through the opening 30 and solidified, and the adhesive can be anchored.

Description

  The present invention relates to a terminal, and more particularly to a terminal attached to the surface of an object.

  In a surface mount type (or surface mount type) terminal that is attached to the surface of an object and connected to a conductor formed on the same surface, the terminal is attached to the surface of the object with an adhesive, and the electrical contact of the terminal and the object A configuration is known in which surface conductors are connected to each other mainly under the adhesive action of an adhesive.

  For example, Patent Document 1 discloses a terminal mounting structure for mounting a terminal on a substrate having a conductor formed on the surface. Patent Document 1 states that “the terminal 3 is convex with respect to the substrate 1 and the two fixing portions 31, the plurality of elastic portions 32 extending substantially in parallel from one of the two fixing portions to the other. And a substrate contact portion 33 that is electrically connected to the conductor 2. The fixing portion 31 is formed in a substantially flat plate shape, and the substrate-side surface thereof is a joining means such as the double-sided adhesive tape 4. The substrate contact portion 33 of the terminal 3 is adhered to the substrate 1 by the adhesive 5 while being in contact with the conductor 2 by the repulsive force due to the elastic displacement of the elastic portion 32. "The terminal 303 is connected to the fixing portion 331, a plurality of elastic portions 332 extending from the fixing portion 331 in different directions (directions opposite to each other in the illustrated example), and the elastic portion 332 so as to be convex with respect to the substrate 302. Provided and electrically connected to the conductor 302 The fixing portion 331 is formed in a substantially flat plate shape, and the substrate side surface thereof is fixed to the substrate 301 by a bonding means such as a double-sided adhesive tape 304. The fixing portion 331 is a substrate of the terminal 303. The contact portion 333 is adhered to the substrate 301 by the adhesive 305 in a state where the contact portion 333 is in contact with the conductor 302 by a repulsive force due to the elastic displacement of the elastic portion 332.

  Moreover, patent document 2 discloses the glass with a terminal by which a terminal is adhere | attached with respect to the glass by which the silver print was given to the surface. Patent Document 2 states that “a terminal 14 is composed of two plates having different thicknesses, and a lower surface 17 is bonded to an adhesive layer 16 (for example, a thickness of 0.4 mm), and the terminal 17 is raised from the base 17. The terminal portion 19 (for example, thickness 0.8 mm) connected from the female terminal portion 18 to a television or the like in the vehicle. ”,“ The base portion 17 is bent in an arc shape that is bent toward the silver print 12 at both ends. The adhesive layer 16 includes a first double-sided tape 22, an adhesive 23, and a second double-sided tape 24 arranged from the left in the drawing along the longitudinal direction of the terminal 14. 26 and 26 are contact points at which the bent portions 21 and 21 of the terminal 14 are brought into contact with the upper surface of the silver print 12. That is, the terminal 14 is brought into contact with the upper surface of the silver print 12 at a plurality of contact points 26 and 26. ""

JP 2009-105036 A (paragraphs 0016 and 0030) International Publication No. 2010/100961 (paragraphs 0043 and 0045)

  In the configuration where the electrical contacts of the surface mount type terminal and the conductor on the surface of the object are connected to each other mainly under the adhesive action of the adhesive, the proper connection state between the electrical contact and the conductor is stable over a long period of time. It is desired to be able to maintain and reduce the amount of adhesive used.

  One aspect of the present invention includes a base portion having a notch, a contact portion having an electrical contact extending from the base portion and disposed below the base portion, and a free portion extending below the base portion and disposed below the notch. A cantilever-like mooring portion having an end, an opening is formed around the mooring portion, and an adhesive for adhering the base to the object can flow through the opening before solidification, and through the opening It is a terminal that can anchor the adhesive by engaging at least a part of the anchoring portion with the solidified adhesive.

  The terminal according to one embodiment of the present invention includes a cantilever-like anchoring portion extending below the base portion and an opening formed around the anchoring portion, so that the adhesive is swollen above the base portion. The adhesive can be solidified by being brought into contact with the anchoring portion without being taken out, and the adhesive can be solidified into a desired shape by controlling the direction in which the adhesive before solidification passes through the opening. Therefore, according to the terminal according to one aspect of the present invention, it is possible to stably maintain an appropriate connection state between the electrical contact of the contact portion and the conductor on the surface of the object over a long period of time, and the amount of liquid adhesive used Can be reduced.

It is a figure which shows the terminal by the 1st Embodiment of this invention, (a) The perspective view seen from upper direction, (b) The perspective view seen from the downward direction. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 showing an example of a procedure for attaching the terminal of FIG. 1 to the surface of an object, and shows steps of (a) temporary fixing and (b) adhesion. It is a perspective view which shows the modification of the terminal of FIG. It is a figure which shows the terminal by the 2nd Embodiment of this invention, (a) The perspective view seen from upper direction, (b) The perspective view seen from the downward direction. It is a figure which shows the terminal by the 3rd Embodiment of this invention, (a) Perspective view, (b) It is sectional drawing along line VV. It is a schematic plan view which shows the modification of the mooring part which the terminal by embodiment of this invention has. It is a perspective view which shows the terminal by the 4th Embodiment of this invention.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Corresponding components are denoted by common reference symbols throughout the drawings.
FIG. 1 is a diagram illustrating a terminal 10 according to the first embodiment of the present invention, and FIG. 2 is a diagram illustrating an example of a procedure for attaching the terminal 10 to the surface of an object.

  The terminal 10 extends from the base 12, the contact part 16 having the electrical contact 14, and the base 12 separately from the contact part 16, and supports an adhesive for bonding the base 12 to an object. And an adhesive support 18 that can be formed. The base 12 is a substantially rectangular flat plate-like element having a first surface (lower surface in the drawing) 12a and a second surface (upper surface in the drawing) 12b opposite to each other. As will be described later, the base portion 12 is mainly fixed to the surface of the object by an adhesive and functions as a base portion for appropriately positioning the electrical contact 14 of the contact portion 16 with respect to the conductor formed on the surface of the object. . The base portion 12 as a whole can have an appropriate elasticity determined depending on its material, shape, dimensions, and the like.

  In the illustrated terminal 10, a pair of contact portions 16 are provided at both ends in the longitudinal direction of the base portion 12. Each contact portion 16 includes a plurality (three in the figure) of arm portions 20 extending from the base portion 12. Each arm portion 20 is a cantilever-like element that is connected to the base 12 at the base end 20a and has a free end at the end 20b. The arm portion 20 bends in the vicinity of the base end 20a and extends in a direction projecting from the first surface 12a of the base portion 12 (downward in the drawing) and is reversed in the middle and extends in the opposite direction (upward in the drawing). It has a shape, and the outer bulging surface of this inversion region functions as the electrical contact 14. Therefore, each contact portion 16 has a plurality (three in the figure) of electrical contacts 14 arranged at a position protruding from the first surface 12a of the base portion 12 (that is, below the base portion 12). Each arm portion 20 can have an appropriate elasticity determined depending on its material, shape, dimensions, and the like.

  In the illustrated configuration, the base portion 12 and the contact portion 16 are integrally manufactured from the same electrically conductive material. For example, the base portion 12 and the contact portion 16 can be integrally formed by punching and bending into a predetermined shape from a single sheet metal material having a predetermined thickness by a pressing process. The base portion 12 and the contact portion 16 may be made from separate members and joined to each other in a later step.

  The terminal 10 may further include an electric wire connection portion 22 that extends from the base portion 12 separately from the contact portion 16. The electric wire connection part 22 is a flat plate-like element extended in a direction (upward in the drawing) protruding from the second surface 12b in the central region 12c of the base part 12. A terminal portion 24 to which an external electric wire (not shown) can be detachably connected is formed at the distal end region of the electric wire connecting portion 22. For example, by connecting an external electric wire to the electric wire connecting portion 22 of the terminal 10 attached to the surface of the object, a desired current can be supplied from the external electric wire to the conductor on the surface of the object via the terminal 10. .

  In the illustrated configuration, the wire connecting portion 22 is made of an electrically conductive material that is separate from the base portion 12 and the contact portion 16, and is crimped to the central region 12 c of the base portion 12 at the end region 26 on the opposite side of the terminal portion 24. It joins by joining means, such as. Alternatively, the wire connection portion 22 can be integrally manufactured from the same electrically conductive material as the base portion 12 and the contact portion 16. In addition, the wire connection part 22 can have various shapes and dimensions not limited to the illustrated shape and dimensions on the assumption that the functions of the base part 12 and the contact part 16 are not disturbed.

  In the illustrated terminal 10, a pair of adhesive support portions 18 are provided between the central region 12 c of the base portion 12 and the contact portions 16 at both ends in the longitudinal direction. Each adhesive support portion 18 includes a cantilever-like anchoring portion 28 that extends to a position protruding from the first surface 12 a of the base portion 12 (that is, below the base portion 12). The mooring portion 28 has a first end 28 a connected to the base portion 12 and a second end 28 b as a free end disposed on the first surface 12 a side of the base portion 12 (that is, below the base portion 12).

  Around the mooring portion 28, an astigmatic opening 30 is formed extending between the base portion 12 and the mooring portion 28. The opening 30 has a shape and dimensions that allow the liquid adhesive before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. The mooring portion 28 functions so that at least a portion of the anchoring portion 28 is engaged with the adhesive solidified through the opening 30 so that the adhesive can be moored in place. Here, the opening 30 is “astigmatic” means that the outline of the opening 30 that is visible when the base 12 is viewed from the second surface 12b side (that is, above the base 12) is asymmetrical (not shown). It means that the terminal 10 is substantially U-shaped (or U-shaped). Such an asymmetrical opening 30 is provided with a notch 32 penetrating in the thickness direction in the base 12, and a piece connected to the notch 32 and the base 12 adjacent to the notch 32 at the first end 28 a. The cantilever-shaped anchoring portion 28 is defined between the base portion 12 and the anchoring portion 28 by forming the anchoring portion 28 in a position substantially overlapping with each other when viewed from above the base portion 12. In this configuration, the second end (free end) 28 b of the anchoring portion 28 is disposed below the notch 32 on the first surface 12 a side of the base portion 12. The opening 30 is formed between the entire outer peripheral edge 28c of the anchoring portion 28 including the second end (free end) 28b and the inner peripheral edge 32a of the notch 32 (FIG. 1B).

  In the illustrated terminal 10, the mooring portion 28 has a first portion 28 having a first end 28 a and extending in a direction substantially orthogonal to the base portion 12, and has a second end 28 b and being substantially parallel to the base portion 12. A second portion 36 extending in the direction is integrally provided. The second portion 36 is a substantially rectangular plate-like portion, and a substantially U-shaped (or U-shaped) opening 30 that is asymmetric with respect to the point is formed in three directions of the second portion (plate-like portion) 36. Note that the mooring portion 28 and the opening 30 are configured so that the opening 30 is asymmetrical, and an adhesive for adhering the base 12 to the object can freely flow through the opening 30 before solidification and the mooring portion 28 after solidification. It is possible to have various shapes and dimensions that are not limited to the illustrated shapes and dimensions on the assumption that they are securely moored.

  The first portion 34 of the mooring portion 28 functions as a flow restriction portion that restricts the flow of the adhesive before solidification supplied to the adhesive support portion 18. The first portion 34 restricts the flow of the adhesive toward the contact portion 16 adjacent to the adhesive support portion 18 so as to be substantially prevented. Further, the edge portion 26a on the side adjacent to the opening 30 of the end region 26 of the electric wire connecting portion 22 joined to the central region 12c of the base portion 12 is disposed to face the first portion 34 of the mooring portion 28. It functions as another flow restricting portion that restricts the flow of the adhesive before solidification supplied to the adhesive support portion 18. The edge portion 26a limits the flow of adhesive toward the central region 12c of the base 12 so that it can be substantially prevented.

  As shown, the anchoring portion 28 can optionally have a through-hole 38 through which the adhesive prior to solidification can flow. The through-hole 38 has a shape and dimensions that allow the liquid adhesive before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. In the figure, a pair of through holes 38 having the same shape (circular shape) and dimensions are formed in the second portion (plate-shaped portion) 36 of the mooring portion 28.

  In the illustrated configuration, the mooring portion 28 is made integrally with the base portion 12 from the same electrically conductive material as the base portion 12. For example, when the base portion 12 is punched into a predetermined shape by a pressing process from a single sheet metal material having a predetermined thickness, the mooring portion 28 can be simultaneously punched and bent. According to this pressing step, the cantilever-like anchoring portion 28 is disposed inside the substantially U-shaped notch 32 penetrating the base portion 12 as viewed from above the base portion 12. Become. The mooring portion 28 may be made of a member separate from the base portion 12 and joined to the base portion 12 in a later step.

  An example of a procedure for attaching the terminal 10 to the surface 40a of the object 40 will be described with reference to FIG. On the surface 40a of the object 40, a conductor 42 for connecting the terminal 10 is formed at an appropriate position.

  First, as a preparatory step, both surfaces of the base 10 on the first surface 12a side of the terminal 10 except for the contact portion 16 and the adhesive support portion 18 (in the figure, the surface of the end region 26 of the wire connection portion 22) are both surfaces. Adhesive tape 44 is applied (FIG. 2A). Alternatively, the double-sided adhesive tape 44 is affixed to a position suitable for fixing the desired portion of the terminal 10 on the surface 40a of the object 40. As double-sided adhesive tape 44, for example, three layers of an intermediate flexible base material layer and adhesive layers on both sides thereof, such as VHB (trademark) acrylic foam structure joining tape Y4920 available from Sumitomo 3M Limited. Those having a structure can be used. This type of double-sided adhesive tape 44 resists the shearing force applied in the surface direction of the double-sided adhesive tape 44 by absorbing the stress of the flexible base material layer, and absorbs the dimensional change of the terminal 10 due to environmental temperature fluctuations. The base 12 of the terminal 10 can be firmly fixed to the surface 40 a of the object 40.

  Next, the terminal 10 is disposed in a position and posture in which a plurality (three) of the electrical contacts 14 of each contact portion 16 are opposed to the corresponding conductors 42 formed on the surface 40a of the object 40, and double-sided adhesive tape. 44 fixes the base 12 to the object surface 40a (FIG. 2A). At this time, by applying an appropriate pressing force P to the base portion 12, at least one of the base portion 12 and the contact portion 16 is elastically bent, and the individual electrical contacts 14 are applied to the conductors 42 with a uniform contact pressure P ′. Make contact. This pressing force P is large enough to cause the pressure-sensitive adhesive layer of the double-sided adhesive tape 44 to exhibit a required adhesive force. Then, the shape and dimensions of the base 12 and the contact portion 16 (arm portion 20), the thickness of the double-sided adhesive tape 44, and the like are selected in advance so as to ensure the contact pressure P ′. Further, the shape and size of the anchoring portion 28 included in the adhesive support portion 18 is selected in advance so as not to inhibit such elastic deformation of the base portion 12 and the contact portion 16. Note that the double-sided adhesive tape 44 is not intended to permanently fix the terminal 10 to the object 40, but only needs to be able to exert a temporary fixing function until the adhesive described later is solidified.

  Next, the object 40 is arranged on the lower side in the gravity direction of the terminal 10, and the terminal 10 temporarily fixed to the surface 40 a of the object 40 by the double-sided adhesive tape 44 is attached to each of the pair of adhesive support portions 18. Then, the liquid adhesive 46 is supplied (FIG. 2A). The liquid adhesive 46 passes through the opening 30 around the anchoring portion 28 of each adhesive support portion 18 (in the illustrated configuration, the through hole 38 (FIG. 1)), and the viscosity, wettability with respect to the object surface 40a, etc. Depending on the characteristics, it tends to flow between the first surface 12a of the base 12 and the object surface 40a. At this time, since the opening 30 of the anchoring portion 28 of each adhesive support portion 18 has an asymmetrical outline, the direction in which the liquid adhesive 46 passes through the opening 30 is substantially limited, and accordingly, The flow direction of the adhesive 46 between the first surface 12a of the base 12 and the object surface 40a is substantially limited. Therefore, by appropriately selecting the asymmetrical shape of the opening 30, the flow direction of the adhesive 46 before solidification can be controlled to solidify the adhesive 46 into a desired shape.

  In the illustrated terminal 10, when the liquid adhesive 46 passes through the opening 30 of each adhesive support 18, the first portion 34 of the anchoring portion 28 of each adhesive support 18 and the end region of the wire connection 22. 26 edge portions 26a cooperate with each other to restrict the flow of the adhesive 46 in the space between the first surface 12a of the base 12 and the object surface 40a. As a result, the liquid adhesive 46 is substantially held in a region between the first portion 34 and the edge portion 26a while being in contact with the object surface 40a, and is applied to the region under frictional force or surface tension. Stored. In the illustrated configuration, the side edge of the double-sided adhesive tape 44 adjacent to the edge portion 26 a of the end region 26 of the wire connection portion 22 also exhibits a flow restriction function for the liquid adhesive 46.

  Further, in the illustrated terminal 10, the second portion 36 of the mooring portion 28 is a substantially rectangular plate-like portion, and the substantially equal (or substantially (or substantially) (or a) (or plate) portion extending over a relatively wide space on the three sides of the second portion (plate-like portion) 36. U) Since the letter-shaped opening 30 is formed, the flow direction of the adhesive 46 does not hinder the flow of the adhesive 46 itself through the opening 30 even when the viscosity of the adhesive 46 is relatively high. Can be controlled. A through-hole 38 optionally provided in the anchoring portion 28 allows the adhesive 46 to pass through itself to supplement the adhesive 46 through the opening 30 when the viscosity of the adhesive 46 is relatively high. it can. When the viscosity of the adhesive 46 is relatively low and the adhesive 46 can pass through the opening 30 easily and quickly, the number and dimensions of the through holes 38 can be reduced, or the through holes 38 can be omitted.

  When a predetermined amount of the adhesive 46 is supplied to the adhesive support 18, the adhesive 46 rides on the mooring portion 28 while uniformly contacting the mooring portion 28 by frictional force or surface tension, and opens to the opening 30. This results in a form in which at least partly is filled (FIG. 2B). At this time, since the cantilever-like mooring portion 28 is extended below the base portion 12, it is not necessary to supply the adhesive 46 until it overflows to the second surface 12 b of the base portion 12.

  When the adhesive 46 is solidified in a form in which the opening 30 is at least partially filled, the anchoring portion 28 is engaged with the solidified adhesive 48 by at least a part thereof (FIG. 2B). In the illustrated terminal 10, the anchoring portion 28 has a second portion 36 that extends in a direction substantially parallel to the base portion 12, and substantially the entire second portion 36 is embedded in the adhesive 48 after solidification. Fixed. After the solidified adhesive 48 comes into contact with the mooring portion 28, a sufficiently large contact area is secured with respect to the adhesive support portion 18, and is moored in a fixed position by the mooring portion 28. The adhesive 48 after solidification is anchored in a fixed position on the adhesive support 18, and thus depends on the adhesive force between the adhesive 48 and the object surface 40 a (and the auxiliary adhesive force by the double-sided adhesive tape 44). Thus, the terminal 10 is attached to the object surface 40a, and at least one of the base portion 12 and the contact portion 16 of the terminal 10 is maintained in an elastically bent state. The contact pressure P ′ with 42 is maintained. As a result, an appropriate connection state between each electrical contact 14 of the terminal 10 and the corresponding conductor 42 is stably maintained over a long period of time without being affected by fluctuations in environmental temperature, vibration of the object 40, or the like. be able to.

  According to the terminal 10, the adhesive support 18 is provided with a cantilever-like anchoring portion 28 that extends below the base 12, so that an astigmatic opening 30 is formed around the anchoring portion 28. Therefore, as described above, an appropriate connection state between the electrical contact 14 of the contact portion 16 and the conductor 42 of the object surface 40a can be stably maintained for a long time, and the amount of the liquid adhesive 46 used. Can be reduced. In particular, in the illustrated terminal 10, the second portion 36 of the anchoring portion 28 is embedded and fixed in the adhesive 48 after solidification, so that the terminal 10 is more firmly attached to the object surface 40 a and the electrical contact 14. And a proper connection state between the conductor 42 and the conductor 42 are more stably maintained. Since the adhesive 48 after solidification can have a shape that does not bulge from the second surface 12b of the base portion 12, it is advantageous when it is desired to effectively use the space on the second surface 12b side of the base portion 12 in application of the terminal 10. is there.

  The liquid adhesive 46 is capable of exerting an adhesive force that holds the terminal 10 firmly fixed to the surface 40a of the object 40 by being cured or solidified, and a chemical cross-linking reaction takes place, and the liquid adhesive 46 is dense. It can be made of a resin that forms a three-dimensional network. Examples of such resins include room temperature curable types such as epoxy resins, photocurable acrylic resins, thermosetting acrylic resins, unsaturated polyester resins, silicone resins, urethane resins, bismaleimides, cyanoacrylates, and urea resins. Or a thermosetting resin is mentioned. When a room temperature curable resin such as an epoxy resin is used as the adhesive 46, the terminal 10 and the object 40 are not affected by heat because the work can be performed at room temperature without applying heat. In addition, other resins such as an ultraviolet curable resin and a thermoplastic resin can be used for the adhesive 46. In the present application, curing and solidification in a narrow sense are collectively referred to as “solidification”.

  In the terminal attachment procedure described above, the terminal 10 is temporarily fixed to the object 40 by fixing the base 12 to the object surface 40 a using the double-sided adhesive tape 44. According to this configuration, the base 12 is fixed to the object surface 40a by the double-sided adhesive tape 44, and at the same time, the contact pressure P 'between the individual electrical contacts 14 and the corresponding conductors 42 can be secured, and the contact pressure P'. Can be maintained for a certain period of time, for example, even when a resin that requires time until solidification, such as a room temperature curable resin, is used as the adhesive 46, the required value can be obtained without waiting for the adhesive 46 to solidify. It can move to the next process. Instead of the double-sided adhesive tape 44, the terminal 10 can be temporarily fixed to the object 40 using an appropriate adhesive or jig.

  An electrically insulating member can be used as a temporary fixing member such as a double-sided adhesive tape 44 interposed between the first surface 12a of the base 12 and the surface 40a of the object 40. According to this configuration, even when another conductor (not shown) that is electrically independent from the conductor 42 is present on the surface 40a of the object 40, the electrically insulating temporary fixing is provided on the other conductor. Since the base portion 12 of the terminal 10 can be arranged through the member, for example, the terminal 10 can be attached to the surface 40a of the object 40 in which a large number of conductors are arranged at high density without worrying about the selection of the attachment position. it can. As the electrically insulating double-sided adhesive tape 44, a general-purpose inexpensive tape can be used. When it is not necessary to consider the insulation between the terminal 10 and a conductor other than the conductor 42, a conductive temporary fixing member can be used. According to this configuration, for example, since the terminal 10 can be connected to the other part of the conductor 42 via the conductive temporary fixing member, the conduction path between the terminal 10 and the conductor 42 is increased. Connection reliability can be improved.

  In the terminal attachment procedure described above, by applying a pressing force P toward the object surface 40a to the base portion 12 of the terminal 10, the plurality of electrical contacts 14 of the contact portion 16 are brought into contact with the conductor 42 with a uniform contact pressure P ′. ing. According to this configuration, a relatively high contact pressure P ′ can be generated between the electrical contact 14 and the conductor 42 in synergy with the shape of the electrical contact 14 formed of the outer bulging surface of the arm portion 20. Accordingly, the electrical contact 14 slides against the conductor 42 under contact pressure, so that a so-called wiping action is not required, and the electrical connection is stabilized by breaking through the oxide film formed on the surface of the electrical contact 14 or the conductor 42. Can be established.

  The terminal 10 shown in the figure has a pair of contact portions 16 at both ends in the longitudinal direction of the base portion 12, and a plurality (three in the figure) of electrical contacts 14 in each contact portion 16. According to this configuration, even when the surface 40a of the object 40 includes a curved surface, the individual arm portions 20 having the electrical contacts 14 can be elastically displaced independently of each other. It is possible to make a stable contact with the corresponding conductor 42 under '. Further, in the illustrated configuration in which each contact portion 16 includes a plurality of (three in the figure) arm portions 20 having a comb blade shape, current flowing through each arm portion 20 can be reduced to suppress heat generation, and The heat dissipation effect can be improved. Note that the configuration of the contact portion 16 is not limited to the illustrated configuration including the plurality of arm portions 20, and a configuration having a single arm portion bent in a substantially U shape, or a large number of heat dissipations in the single arm portion. The structure etc. which formed this hole are employable.

  The terminal 10 shown in the figure has a configuration in which a liquid adhesive 46 is supplied to the adhesive support 18 provided on the base 12 and the base 12 is fixed to the object 40 by the solidified adhesive 48. In this configuration, since it is not necessary to directly join the contact portion 16 to the conductor 42 on the object surface 40a, for example, when the dimension of the terminal 10 changes due to a change in environmental temperature, the electrical contact 14 of the contact portion 16 It is possible to slide along the surface of the conductor 42 while maintaining an appropriate contact state. Therefore, even when such a dimensional change occurs in the terminal 10, it is possible to prevent an undesired stress from being applied to the terminal 10 and the object 40 and to stably maintain the conductive connection between the terminal 10 and the conductor 42.

  FIG. 3 shows a modification of the terminal 10 described above. A terminal 10 ′ according to the illustrated modification includes a flat wire connection portion 50 that extends in a direction substantially parallel to the second surface 12 b in the central region 12 c of the base portion 12 in place of the wire connection portion 22 described above. . The terminal 10 ′ has substantially the same configuration as the terminal 10 described above except for the configuration of the electric wire connection portion 50. Therefore, corresponding constituent elements are denoted by common reference numerals, and detailed description thereof is omitted.

  A terminal portion 52 to which an external electric wire (not shown) can be detachably connected is formed at the distal end region of the electric wire connecting portion 50. The wire connection portion 50 is made of an electrically conductive material that is separate from the base portion 12 and the contact portion 16, and is joined to the central region 12 c of the base portion 12 at the end region 54 on the opposite side of the terminal portion 52. Are joined together. Or the electric wire connection part 50 can also be integrally produced from the same electrically conductive material as the base 12 and the contact part 16.

  Each adhesive support portion 18 of the terminal 10 ′ is provided with a mooring portion 28 and an opening 30 corresponding to the mooring portion 28 and the opening 30 of the terminal 10 described above, except that the through hole 38 is not provided. . The operation of the mooring portion 28 and the opening 30 and the effect produced thereby are the same as those of the terminal 10.

  FIG. 4 shows a terminal 60 according to a second embodiment of the present invention. The terminal 60 has substantially the same configuration as the terminal 10 according to the first embodiment except for the configuration of the anchoring portion 62 of the adhesive support portion 18. Therefore, corresponding constituent elements are denoted by common reference numerals, and detailed description thereof is omitted.

  The terminal 60 extends from the base 12, the contact part 16 having the electrical contact 14, and the base 12 separately from the contact part 16, and supports an adhesive for bonding the base 12 to an object. And an adhesive support 18 that can be formed. The terminal 60 further includes a wire connecting portion 22 that extends from the base portion 12 separately from the contact portion 16. The wire connecting portion 22 is joined to the central region 12c of the base 12 by a joining means such as caulking at an end region 26 opposite to the terminal portion 24.

  In the illustrated terminal 60, a pair of adhesive support portions 18 are provided between the central region 12 c of the base portion 12 and the contact portions 16 at both ends in the longitudinal direction. Each adhesive support portion 18 includes a cantilever-like anchoring portion 62 that extends to a position protruding from the first surface 12 a of the base portion 12 (that is, below the base portion 12). The mooring portion 62 includes a first end 62a coupled to the end region 26 of the wire connecting portion 22 and a second end serving as a free end disposed on the first surface 12a side of the base portion 12 (ie, below the base portion 12). 62b.

  Around the mooring portion 62, an astigmatic opening 64 is formed that extends between the base portion 12 and the mooring portion 62. The opening 64 has a shape and dimensions that allow the liquid adhesive 46 (FIG. 2) before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. The anchoring portion 62 functions so that at least a part of the anchoring portion 62 engages with the adhesive 48 (FIG. 2) solidified through the opening 64 so that the adhesive 48 can be anchored in place. Here, when the opening 64 is “astigmatic”, the outline of the opening 64 that is visible when the base 12 is viewed from the second surface 12b side (that is, above the base 12) has an asymmetrical shape (not shown). It means that the terminal 60 is substantially U-shaped (or U-shaped). Such an asymmetrical opening 64 is provided with a notch 66 penetrating in the thickness direction in the base portion 12, and the edge portion of the end region 26 of the wire connecting portion 22 adjacent to the notch 66. The cantilever-shaped anchoring portion 62 connected to the first end 62a is formed at a position substantially overlapping each other when viewed from above the base portion 12, so that the space between the base portion 12 and the anchoring portion 62 is formed. Defined. In this configuration, the second end (free end) 62 b of the mooring portion 62 is disposed below the notch 66 on the first surface 12 a side of the base portion 12. The opening 64 is formed between the entire outer peripheral edge 62c of the mooring portion 62 including the second end (free end) 62b and the inner peripheral edge 66a of the notch 66 (FIG. 4B).

  In the illustrated terminal 60, the anchoring portion 62 includes a substantially rectangular plate-like portion 68 having a first end 62 a and a second end 62 b and extending in a direction substantially parallel to the base portion 12. A substantially U (or U) -shaped opening 64 that is asymmetric with respect to the three sides is formed. The mooring portion 62 and the opening 64 have an astigmatism in the opening 64, and an adhesive for adhering the base portion 12 to the object can freely flow through the opening 64 before solidification and the mooring portion 62 after solidification. It is possible to have various shapes and dimensions that are not limited to the illustrated shapes and dimensions on the assumption that they are securely moored.

  An edge portion 26a on the side adjacent to the opening 64 of the end region 26 of the wire connecting portion 22 joined to the central region 12c of the base 12 is an adhesive 46 (see FIG. It functions as a flow restricting part that restricts the flow of 2). The edge portion 26a limits the flow of the adhesive 46 toward the central region 12c of the base 12 so that it can be substantially prevented.

  As shown, the anchoring portion 62 can optionally have a through hole 70 through which the adhesive 46 before solidification can flow. The through-hole 70 has a shape and size that allows the liquid adhesive 46 before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. In the figure, a pair of through holes 70 having the same shape (rectangular shape) and dimensions are formed in the plate-like portion 68 of the mooring portion 62.

  In the illustrated configuration, the mooring portion 62 is made integrally with the wire connecting portion 22 from the same electrically conductive material as the wire connecting portion 22. For example, when the electric wire connection portion 22 is punched out into a predetermined shape from a single sheet metal material having a predetermined thickness by a pressing process, the mooring portion 62 can be simultaneously punched out and bent. In addition, the mooring part 62 can also be made from the member separate from the electric wire connection part 22, and can also be set as the structure joined to the electric wire connection part 22 at a post process.

  The procedure for attaching the terminal 60 to the surface 40a (FIG. 2) of the object 40 is the same as the procedure for attaching the terminal 10 described above. The liquid adhesive 46 (FIG. 2) supplied to each adhesive support 18 passes through the opening 64 around the anchoring portion 62 of each adhesive support 18 (through hole 70 in the illustrated configuration), and its viscosity. Depending on characteristics such as wettability to the object surface 40a and the object surface 40a, an attempt is made to flow between the first surface 12a of the base 12 and the object surface 40a. At this time, since the opening 64 of the anchoring portion 62 of each adhesive support portion 18 has an asymmetrical outline, the direction in which the liquid adhesive 46 passes through the opening 64 is substantially limited. The flow direction of the adhesive 46 between the first surface 12a of the base 12 and the object surface 40a is substantially limited. Therefore, by appropriately selecting the asymmetrical shape of the opening 64, the flow direction of the adhesive 46 before solidification can be controlled to solidify the adhesive 46 into a desired shape.

  In the illustrated terminal 10, the mooring portion 62 has a substantially rectangular plate-shaped portion 68, and a substantially U-shaped (or U) -shaped opening 64 extending over a relatively wide space is formed on three sides of the plate-shaped portion 68. Therefore, even when the viscosity of the adhesive 46 is relatively high, the flow direction of the adhesive 46 can be controlled without hindering the flow of the adhesive 46 itself through the opening 64. A through hole 70 optionally provided in the anchoring portion 62 allows the adhesive 46 to pass through itself to supplement the adhesive 46 through the opening 64 when the viscosity of the adhesive 46 is relatively high. it can. When the viscosity of the adhesive 46 is relatively low and the adhesive 46 can pass through the opening 64 easily and quickly, the number and dimensions of the through holes 70 can be reduced, or the through holes 70 can be omitted.

  When a predetermined amount of the adhesive 46 is supplied to the adhesive support 18, the adhesive 46 rides on the mooring part 62 while uniformly contacting the mooring part 62 due to frictional force or surface tension, and opens 64. To at least partly filled form. At this time, since the cantilever-like mooring portion 62 is extended below the base portion 12, it is not necessary to supply the adhesive 46 until it overflows to the second surface 12 b of the base portion 12.

  When the adhesive 46 is solidified in a form in which the opening 64 is at least partially filled, the anchoring portion 62 is engaged with the solidified adhesive 48 (FIG. 2) by at least a part thereof. In the illustrated terminal 60, the mooring portion 62 has a plate-like portion 68 that extends in a direction substantially parallel to the base portion 12, and substantially the entire plate-like portion 68 is embedded in the adhesive 48 after solidification. Fixed. After the solidified adhesive 48 comes into contact with the mooring portion 62, a sufficiently large contact area is secured with respect to the adhesive support portion 18, and is moored in a fixed position by the mooring portion 62. The adhesive 48 after solidification is anchored in a fixed position on the adhesive support 18, and thus depends on the adhesive force between the adhesive 48 and the object surface 40 a (and the auxiliary adhesive force by the double-sided adhesive tape 44). The terminal 60 is attached to the object surface 40a, and at least one of the base portion 12 and the contact portion 16 of the terminal 60 is elastically bent, so that the individual electrical contacts 14 and the corresponding conductors are maintained. The contact pressure P ′ (FIG. 2) between 42 (FIG. 2) is maintained. As a result, the proper connection state between each electrical contact 14 of the terminal 60 and the corresponding conductor 42 is stably maintained for a long time without being affected by fluctuations in the environmental temperature, vibration of the object 40, or the like. be able to.

  According to the terminal 60, the adhesive support portion 18 is provided with a cantilever-like mooring portion 62 extending below the base portion 12, and an astigmatic opening 64 is formed around the mooring portion 62. Therefore, as described above, an appropriate connection state between the electrical contact 14 of the contact portion 16 and the conductor 42 of the object surface 40a can be stably maintained for a long time, and the amount of the liquid adhesive 46 used. Can be reduced. In particular, in the illustrated terminal 60, the plate-like portion 68 of the mooring portion 62 is fixed by being embedded in the solidified adhesive 48, so that the terminal 60 is more firmly attached to the object surface 40a, and the electrical contact 14 And a proper connection state between the conductor 42 and the conductor 42 are more stably maintained. Since the adhesive 48 after solidification can have a shape that does not bulge from the second surface 12b of the base portion 12, it is advantageous when it is desired to effectively use the space on the second surface 12b side of the base portion 12 in application of the terminal 60. is there.

  In the terminals 10 and 60 according to the various embodiments described above, a pair of contact portions 16 are provided at both longitudinal ends of the base portion 12, and a pair of adhesive support portions 18 are connected to the central region 12 c of the base portion 12 in the longitudinal direction. It is provided between the contact portions 16 at both ends. This configuration can maintain an appropriate connection state between the electrical contacts 14 of the terminals 10 and 60 and the conductor 42 of the object surface 40a in a balanced and stable manner. In particular, when the attachment region of the object surface 40a to which the terminals 10 and 60 are attached is curved in a concave shape, the contact region P ′ is fixed by fixing the central region 12c of the base 12 to the object surface 40a as described above. Can be easily secured.

  In contrast, FIG. 5 shows a terminal 80 according to a third embodiment of the present invention having one contact portion 16 and one adhesive support portion 18. The terminal 80 has substantially the same configuration as the terminal 10 (FIG. 1) according to the first embodiment except for a configuration in which the contact portion 16 and the adhesive support portion 18 are unified. Therefore, corresponding constituent elements are denoted by common reference numerals, and detailed description thereof is omitted.

  The terminal 80 is extended from the base 12, the contact part 16 having the electrical contact 14, and provided on the base 12 separately from the contact part 16, and supports an adhesive for bonding the base 12 to an object. And an adhesive support 18 that can be formed. In the illustrated terminal 80, a single contact portion 16 is provided at one end in the longitudinal direction of the base portion 12, and a single adhesive support portion 18 is provided between the other end region 12 c in the longitudinal direction of the base portion 12 and the contact portion 16. It is provided between them (FIG. 5A). The adhesive support portion 18 includes a cantilever-like anchoring portion 28 that extends to a position protruding from the first surface 12a of the base portion 12 (that is, below the base portion 12). Around the mooring portion 28, an astigmatic opening 30 is formed extending between the base portion 12 and the mooring portion 28. The opening 30 has a shape and dimensions that allow the liquid adhesive 46 (FIG. 2) before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. The anchoring portion 28 functions so that at least a portion of the anchoring portion 28 is engaged with the adhesive 48 (FIG. 2) solidified through the opening 30 so that the adhesive 48 can be anchored in place.

  A terminal 80 shown in FIG. 5 is provided with a cantilever-like anchoring portion 28 extending below the base 12 in a single adhesive support portion 18, and an asymmetrical opening 30 around the anchoring portion 28. Thus, an appropriate connection state between the electrical contact 14 of the contact portion 16 and the conductor 42 (FIG. 2) on the object surface 40a can be stably maintained for a long time, and a liquid adhesive can be used. The amount of use of 46 can be reduced.

  In the terminals 10, 60, 80 according to the various embodiments described above, the mooring portions 28, 62 are notches formed in the base portion 12 when the base portion 12 is viewed from the second surface 12b side (that is, above the base portion 12). It has contours corresponding to the contours of 32 and 66 (FIG. 6A). Alternatively, the mooring portions 28 and 62 may have contours that do not correspond to the contours of the notches 32 and 66 formed in the base portion 12 when the base portion 12 is viewed from the second surface 12b side (that is, above the base portion 12). it can. For example, with respect to the notches 32 and 66 having a substantially rectangular outline, a rectangular outline (FIG. 6B), a substantially triangular outline (FIG. 6C), and a triangular outline (see FIG. 6). 6 (d)) and the like can be combined to form the adhesive support 18. In any of the configurations shown in the figure, astigmatism openings 30 and 64 are formed between the base 12 and the anchoring portions 28 and 62.

  The terminals 10, 60, 80 according to the various embodiments described above can be used as, for example, a terminal of a heating wire attached to a rear window of an automobile for preventing fogging. The heating wire of the rear window is generally formed by printing a conductive paste on a glass plate in a predetermined pattern, and a terminal for connecting a power cable is installed at the end of the heating wire. By using the terminals 10, 60, 80, the terminals 10, 60, 80 can be stably connected to the heating wire for a long time with an adhesive without using solder.

  The terminals 10, 60, and 80 according to the various embodiments described above can be used by being surface-mounted on a substrate such as a printed wiring board, for example. In addition, the terminals 10, 60, and 80 can be easily and reliably connected to conductors that are difficult to be joined by solder, such as aluminum or conductive ceramics.

  FIG. 7 shows a terminal 90 according to a fourth embodiment of the present invention. The terminal 90 includes a wall 92 that functions as an outflow prevention unit that restricts the flow of the adhesive before solidification applied to the mooring unit 28, separately from the mooring unit 28. The terminal 90 has substantially the same configuration as the terminal 10 (FIG. 1) according to the first embodiment except that the terminal 92 is provided. Therefore, corresponding constituent elements are denoted by common reference numerals, and detailed description thereof is omitted.

  The terminal 90 is provided on the base 12 separately from the base 12, the pair of contact parts 16 extending from the base 12, each having an electrical contact 14, and the contact part 16, for bonding the base 12 to an object. And a pair of adhesive support portions 18 capable of supporting the adhesive. Each adhesive support portion 18 includes a cantilever-like anchoring portion 28 that extends to a position protruding from the first surface 12a (FIG. 2) of the base portion 12 (that is, below the base portion 12). Around the mooring portion 28, an astigmatic opening 30 is formed extending between the base portion 12 and the mooring portion 28. The opening 30 has a shape and dimensions that allow the liquid adhesive 46 (FIG. 2) before solidification supplied to the adhesive support 18 to freely flow regardless of the viscosity. The anchoring portion 28 functions so that at least a portion of the anchoring portion 28 is engaged with the adhesive 48 (FIG. 2) solidified through the opening 30 so that the adhesive 48 can be anchored in place.

  The terminal 90 further includes a wall 92 that extends below the base 12 separately from the mooring portion 28 and is erected along the edge 12 d of the base 12 at a position close to the opening 30. In the configuration shown in the drawing, a pair of walls 92 is formed on both sides of the first surface 12a (FIG. 2) from both side edges 12d extending in the longitudinal direction of the base 12 at positions close to the openings 30 formed around each of the pair of mooring portions 28. Is established. Each wall 92 includes a base end portion 92a connected to the side edge 12d of the base portion 12 and a side wall portion 92b extending from the base end portion 92a along the base side edge 12d to a region close to the opening 30. Have. The wall 92 extends in a direction substantially orthogonal to both the first surface 12a of the base portion 12 and the first portion 34 of the anchoring portion 28.

  In the illustrated configuration, the wall 92 is made integrally with the base 12 from the same electrically conductive material as the base 12. For example, when the base 12 is punched into a predetermined shape by a pressing process from a single sheet metal material having a predetermined thickness, the wall 92 can be simultaneously punched and bent. The wall 92 may be made of a member separate from the base 12 and joined to the base 12 in a later step. Alternatively, the base end portion 92a and the side wall portion 92b of the wall 92 can be made of separate members and joined together in a later step.

  A pair of walls 92 provided in the vicinity of each opening 30 cooperate with the first portion 34 of the anchoring portion 28 to flow the adhesive 46 (FIG. 2) before solidification applied to the anchoring portion 28. It restricts and functions so that the adhesive 46 before solidification can be prevented from flowing out from the adhesive support 18. Therefore, in the terminal 90, the above-described adhesive anchoring function by the anchoring portion 28 and the adhesive flow restricting function by the wall 92 are synergistic, and the required anchoring force can be exerted by the adhesive 46 with the minimum supply amount. An adhesive 48 (FIG. 2) solidified in shape and size can be formed. As a result, an appropriate connection state between each electrical contact 14 of the terminal 90 and the corresponding conductor 42 (FIG. 2) can be achieved without being affected by fluctuations in environmental temperature, vibration of the object 40 (FIG. 2), or the like. It can be maintained stably over time.

10, 60, 80, 90 Terminal 12 Base part 14 Electrical contact 16 Contact part 18 Adhesive support part 20 Arm part 22, 50 Wire connection part 28, 62 Mooring part 30, 64 Opening 32, 66 Notch 34 First part 36 First part 36 2 parts 38, 70 Through hole 46 Adhesive (before solidification)
48 Adhesive (after solidification)
68 Plate part 92 Wall

Claims (7)

A base having a notch;
A contact portion extending from the base and having an electrical contact disposed below the base;
A cantilever-like mooring portion extending below the base and having a free end disposed below the notch,
An opening is formed around the mooring portion;
An adhesive for adhering the base to the object can flow through the opening before solidification, and at least a part of the anchoring portion is engaged with the adhesive solidified through the opening to thereby attach the adhesive. Can be moored,
Terminal.   The terminal according to claim 1, wherein the opening is asymmetric.   The terminal according to claim 1, wherein the mooring portion has a first end connected to the base portion and a second end as the free end.   The said mooring part is a terminal of any one of Claims 1-3 which has a part extended in parallel with the said base.   The terminal according to any one of claims 1 to 4, wherein the mooring portion includes a substantially rectangular plate-like portion, and the opening is formed on three sides of the plate-like portion.   The said anchoring part is a terminal of any one of Claims 1-5 which has a through-hole through which the adhesive agent before solidification can distribute | circulate.   The wall according to any one of claims 1 to 6, further comprising a wall extending separately from the mooring portion and extending along the edge of the base portion at a position close to the opening. Terminal.

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