JP2018190685A - Conductive rubber connector and mounting method for conductive rubber connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conductive rubber connector capable of achieving an expected conduction purpose by easily performing mounting to a connection target member even in a case where a clearance between connection target members is narrow.SOLUTION: A conductive rubber connector 11 comprises: a conduction part 12 in which multiple conductive particles are continuously formed; and a base part 13 consisting of a rubber-like elastic body holding the conduction part 12. One and another connection target members 1 and 2 are conductively connected with each other via the conduction part 12. A protrusion 14 or 15 is formed in contact with at least any one of the one and another connection target members 1 and 2. Each of the protrusions 14 and 15 includes: the conduction part 12 which is exposed in an annular shape on its surface; and a non-conductive island-shaped non-conduction part 16 which is exposed inside of the conduction part 12.SELECTED DRAWING: Figure 3

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive rubber connector for conductively connecting members to be connected and a method for mounting the conductive rubber connector, and mainly to a conductive rubber connector for conductively connecting a circuit board and a housing of a device including the circuit board. About.

  In electronic equipment, a conductive rubber connector is used between the circuit board and the metal casing of the equipment equipped with the circuit board for the purpose of grounding away static electricity and electromagnetic noise accumulated in the electronic components on the circuit board. Are known. For example, in International Publication No. 2015/025660 (Patent Document 1), as a connector that reliably conducts connection where there is no space, an inclined curved corresponding surface in which an electrode surface is inclined or curved along the connection surface shape of a connection target member. The technology is described. Japanese Patent Laying-Open No. 2002-057772 (Patent Document 2) discloses a technique (FIG. 3) for reducing a compressive load by using a hemispherical tip of a protruding conductive path as a holder for mounting an electronic component to a device. Have been described. Japanese Patent Application Laid-Open No. 2010-244996 (Patent Document 3) discloses a technique in which both end surfaces of a conductive portion are configured as elastic connectors by cutting surfaces, and are flat inclined surfaces cut in a crossing direction oblique to the column axis direction. (FIG. 7) and a technique (FIG. 14) in which an inclined surface such as a conical side surface is described.

International Publication No. 2015/025660 Japanese Patent Laid-Open No. 2002-057772 JP 2010-244996 A

  On the other hand, as electronic devices become smaller and thinner, the space inside the device housing is further reduced, and the gap between the circuit board and the housing is also narrowed. In such a situation, the installation of components in the equipment has become complicated, and the installation of the conductive rubber connector has become difficult. For example, a large force may be required to sandwich a conductive rubber connector placed on a circuit board from above with a housing, or such an operation itself may be difficult, and the preliminarily formed circuit board and housing are narrow. It has also become necessary to later insert a conductive rubber connector between the gaps.

  However, all the techniques described in the above-mentioned publications have been made for the purpose of reducing the compressive load, and are manufactured on the assumption that the conductive portion is sandwiched between the up and down directions. When trying to insert into the gap between the circuit board and the housing, problems such as being rubbed and bent by the circuit board or the housing are likely to occur, and the mounting operation is difficult. In addition, there is a possibility that the surface of the conductive portion is worn and chipped during insertion.

  Therefore, the present invention can be easily attached to a device, that is, can be easily attached to a connection target member, and the conductive rubber connector is correctly arranged in a case where the connection target members are narrow. It is an object of the present invention to provide a conductive rubber connector that can achieve the intended conductive purpose even when it is difficult.

  That is, the present invention includes a conductive portion in which a plurality of conductive particles are continuously formed, and a base portion made of a rubber-like elastic body that holds the conductive portion, and one and the other connection target members are connected to each other. The conductive rubber connector that is conductively connected through the conductive portion is formed with a protruding portion that contacts at least one of the one and the other connection target members, and the protruding portion has an annular shape on the surface thereof. There is provided a conductive rubber connector comprising the conductive portion to be brought out and a non-conductive island-like non-conductive portion exposed inside the conductive portion.

  The conductive rubber connector includes a conductive portion in which a plurality of conductive particles are continuously formed and a base portion made of a rubber-like elastic body that holds the conductive portion, and one and the other connection target members are connected to each other. In order to conduct conductive connection through the conductive portion, for example, it is possible to provide conductive connection between these connection target members by providing the circuit board and a housing of a device including the circuit board. And it can use for the earth | ground purpose which releases the noise of the static electricity and electromagnetic waves which accumulate | stored in the electronic component on a circuit board to the housing | casing of an apparatus.

  Further, the conductive rubber connector is formed with a protruding portion that contacts at least one of the one and the other connection target members, and the protruding portion has the conductive portion that appears in an annular shape on the surface thereof, Since the non-conductive island-shaped non-conductive portion that is exposed inside the conductive portion is provided, the connection target member can be conductively connected through the conductive portion that is exposed in an annular shape in the protruding portion. And since the electroconductive part exposed on the surface of this protrusion part is an annular part which appears except the front-end | tip of the protrusion part, an electroconductive rubber connector can be made to contact diagonally with respect to a connection object member. Therefore, the conductive rubber connector can be attached to the connection target member vertically rather than vertically, and the desired conductive purpose can be achieved even when the conductive rubber connector cannot be placed vertically between the connection target members. can do.

  The conductive rubber connector can be configured as a curved contact portion in which the surface of the protruding portion is a curved surface. Since the projecting portion is a curved contact portion having a curved surface, the slide is arranged while sliding the curved surface of the conductive rubber connector between the connection target members fixed in advance when the conductive rubber connector is sandwiched between the connection target members. Attachment (also referred to as “slide insertion”) can be performed.

  The conductive rubber connector may have a hemispherical or dome-shaped surface of the protruding portion. Because the surface of the projecting part is hemispherical or dome-shaped, it is easy to mount slides, and when the conductive rubber connector is tilted and connected to the connection target member, it can be connected smoothly, and the difference in tilt angle High tolerance for Moreover, it is easy to form island-like non-conductive portions.

  The conductive rubber connector may be configured such that the island-shaped non-conductive portion is surrounded by a conductive portion in an internal portion other than the surface of the protruding portion. The island-shaped non-conductive portion is surrounded by the conductive portion in the internal portion other than the surface of the protruding portion, and when this configuration is viewed from the conductive portion side, the conductive portion that is continuous except for the island-shaped non-conductive portion is formed. Forming. Therefore, the conductivity can be ensured even if the entire conductive portion exposed in an annular shape does not contact the connection target member.

  The conductive rubber connector may be configured such that the island-shaped non-conductive portion is a portion having few conductive particles in the rubber-like elastic body and having no conductivity. Since the portion having no conductivity due to the small amount of conductive particles in the rubber-like elastic body is the island-shaped non-conductive portion, the island-shaped non-conductive portion can also contain conductive particles. Therefore, the island-shaped nonconductive portion can be formed by a method in which the magnetic conductive particles are magnetically oriented.

  In the conductive rubber connector, the protruding portion is in contact with either one of the one and the other connection target members, and a flat surface having a flat surface is in contact with either of the other members. It can comprise so that the flat contact part which has this may be formed.

  Since the flat contact surface having a flat surface is formed on the contact portion with the connection target member on the opposite side to the side on which the protrusion is provided, on the side opposite to the side on which the protrusion is provided, As in the case of the conductive rubber connector, it is possible to perform attachment in which the connector is placed substantially vertically with respect to the connection target member. Therefore, it is also possible to adopt an attachment method in which the flat contact portion is previously arranged on the corresponding connection target member and then pressed with the other connection target member.

  The present invention is also a method for attaching a conductive rubber connector, wherein the conductive rubber connector is attached so as to be conductively connected to the connection target member, and the surface of the protruding portion is slid relative to the connection target member. And providing a conductive rubber connector mounting method in which the conductive portion in the protrusion is aligned with the connection position of the connection target member and conductively connected to the connection target member at a position away from the tip of the protrusion.

  In the present invention, for the mounting method of the conductive rubber connector for mounting any of the conductive rubber connectors so as to be conductively connected to the connection target member, the surface of the protruding portion is slid with respect to the connection target member, The conductive portion in the projecting portion is aligned with the connection position of the connection target member, and conductively connected to the connection target member at a position away from the tip of the projection portion. Therefore, in the gap where the connection target members are fixed in advance. A conductive rubber connector can be attached later.

  As an example of slide mounting that slides the surface of the protruding part, contact the island-like non-conductive part with the connection target member at the start of installation, then slide the curved surface against the surface of the connection target member and connect Examples include a method of connecting a desired conductive connection portion of the target member to an annular conductive portion exposed on the curved contact portion of the conductive rubber connector. Even if such slide mounting is performed, it is possible to connect to the connection target member with an annular conductive portion that is disengaged from the tip of the protruding portion, thereby achieving a desired conductive state.

  ADVANTAGE OF THE INVENTION According to this invention, the slide attachment which inserts and connects while sliding between connection object members can be performed, and a conductive connection can be performed between connection object members by slide attachment. Further, the conductive rubber connector can be inclined and conductively connected to the connection target member, or the conductive rubber connector can be bent and conductively connected to the connection target member.

It is a top view of the conductive rubber connector of a 1st embodiment. It is a front view of the conductive rubber connector of FIG. It is the III-III sectional view taken on the line of the conductive rubber connector of FIG. It is a longitudinal cross-sectional view of the metal mold | die which manufactures the conductive rubber connector of FIG. It is explanatory drawing of the state which inject | poured the raw material composition into the metal mold | die of FIG. It is explanatory drawing of the state which removed the conductive rubber connector from the metal mold | die of FIG. It is one explanatory drawing which shows the relationship between a curved surface contact part and a metal mold | die, FIG.7 (a) is one sectional drawing of the upper mold | type of the part corresponding to a curved surface contact part, and FIG.7 (b) is the upper mold | type. It is the front view and top view of the curved surface contact part which arose from. FIG. 8 is another explanatory view showing the relationship between the curved surface contact portion and the mold, and FIG. 8A is another sectional view of the upper mold corresponding to the curved surface contact portion, and FIG. It is the front view and top view of the curved surface contact part which arose from the upper model. It is explanatory drawing explaining the state which pinched | interposed the electrically-conductive rubber connector of FIG. 1 between the connection object members. It is explanatory drawing explaining another state which pinched | interposed the electrically conductive rubber connector of FIG. 1 between the connection object members. It is a top view of the conductive rubber connector of a 2nd embodiment. It is explanatory drawing explaining the state which pinched | interposed the electrically conductive rubber connector of FIG. 11 between the connection object members. It is a top view of the conductive rubber connector of a 3rd embodiment. FIG. 14 is a plan view of the conductive rubber connector in a state where a plurality of the conductive rubber connectors of FIG. 13 are coupled. It is explanatory drawing explaining the state which pinched | interposed the electrically conductive rubber connector of FIG. 14 between the connection object members.

  The conductive rubber connector and the manufacturing method thereof of the present invention will be described in detail based on the embodiments. In each embodiment, the same reference numerals are given to the overlapping parts, and the description of the overlapping functions, materials, manufacturing methods, operational effects, etc. is omitted.

First Embodiment [FIGS. 1 to 9]:
A plan view of the conductive rubber connector 11 of this embodiment is shown in FIG. 1, and a front view is shown in FIG. The conductive rubber connector 11 has a function of conductively connecting the connection target members on one side and the other side, and holds a conductive portion 12 in which a plurality of conductive particles are continuously formed and the conductive portion 12. And a base portion 13 made of a rubber-like elastic body. Further, protrusions 14 and 15 are formed in the vertical direction of FIG. In the conductive rubber connector 11, assuming that the upper side in FIG. 1 is one side, the protrusions 14 and 15 are curved contact portions 14 having a curved surface 14a on one side, and the lower side in FIG. If the other side is assumed, the other side is a flat contact portion 15 having a flat surface 15a.

  The base portion 13 is also formed with a base portion 13a having a substantially cylindrical outer shape, and a side protruding portion 13b that protrudes in a disk shape from the base portion 13a to the side, and further has a curved contact portion 14 and a flat surface. A part of the contact portion 15 is also the base portion 13. On the other hand, the conductive portion 14 is formed of a plurality of conductive particles densely and continuously, and is exposed to the outer surface on one side and the other side of the conductive rubber connector 11, and the peripheral portion other than that portion is the base portion 13. Covered.

  The curved contact portion 14 which is a protruding portion protruding from the base portion 13a on one side has a curved surface 14a, that is, a hemispherical surface in FIG. As shown in FIG. 1 and FIG. 2, the curved surface 14a has a ring-shaped surface of the conductive portion 12 and is inside of the curved surface 14a. The island-shaped non-conductive portion 16 is exposed.

  In FIG. 3, the longitudinal cross-sectional view of the conductive rubber connector 11 is shown. As shown in FIG. 3, the island-shaped non-conductive portion 16 is surrounded by the conductive portion 12 at portions other than the curved surface 14a. In other words, the conductive portion 12 penetrating the conductive rubber connector 11 in a column shape in the vertical direction is blocked by the island-shaped non-conductive portion 16 at the center on the curved contact portion 14 side, and is exposed in an annular shape on the curved surface 14a. ing. 3 is a cross-sectional view taken along the line III-III in FIG. 1, but all vertical cross sections passing through the center of FIG. 1 appear in the same shape as FIG.

  On the other hand, as shown in FIG. 2, the protruding portion protruding from the side protruding portion 13b on the other side of the conductive rubber connector 11 is formed as a flat contact portion 15 having a flat surface. As shown in FIG. 3, the flat contact portion 15 is formed with a conductive portion 12 penetrating in the vertical direction at the center, and a base portion 12 made of a rubber-like elastic body is covered around the conductive portion 12. The conductive portion 12 is exposed in a circular shape. Therefore, no island-like non-conductive portion is formed in the flat contact portion 15.

  Next, the raw material member which comprises these each part is demonstrated. The base portion 13 and the island-like non-conductive portion 16 are made of a rubber-like elastic body, and the material thereof is natural rubber, silicone rubber, isoprene rubber, butadiene rubber, acrylonitrile butadiene rubber, 1,2-polybutadiene, styrene-butadiene rubber. , Chloroprene rubber, nitrile rubber, butyl rubber, ethylene-propylene rubber, chloroslyphone rubber, polyethylene rubber, acrylic rubber, epichlorohydrin rubber, fluorine rubber, urethane rubber, styrene thermoplastic elastomer, olefin thermoplastic elastomer, ester thermoplastic Examples include elastomers, urethane-based thermoplastic elastomers, amide-based thermoplastic elastomers, vinyl chloride-based thermoplastic elastomers, fluorinated-based thermoplastic elastomers, and ion-crosslinked thermoplastic elastomers. Since heat resistance and low compression set are required, it is preferable to use silicone rubber. In addition, when manufacturing the electroconductive part 12 by the magnetic field orientation of the magnetic electroconductive particle mentioned later, the base part 13 and the island-like nonelectroconductive part 16 are when the magnetic electroconductive particle is mixed in the rubber-like elastic body. There is also a possibility.

  In addition, when the island-like non-conductive portion 16 is a rubber-like elastic body having no conductive particles and having a low hardness, the surface thereof may be subjected to a treatment for enhancing durability and slipperiness. For example, the surface of the island-like non-conductive portion 16 is thinly coated with a wear-resistant or slippery paint or a rubber-like elastic body, and the surface hardness is increased by applying a crosslinking agent, or chemical treatment such as halogen treatment is performed. It is possible to do.

  The conductive portion 12 is formed by connecting conductive particles in a rubber-like elastic body, and conductive metal or carbon can be used for the conductive particles. Further, when magnetic conductive particles are used, the conductive portions can be made conductive by increasing the density of the particles by a magnetic field. More specifically, as such conductive particles, for example, particles of a ferromagnetic metal such as nickel, cobalt, iron or an alloy containing them, and a ferromagnetic metal such as nickel, cobalt, iron, ferrite are gold, Particles coated with a highly conductive metal such as silver, platinum, aluminum, copper, palladium, chromium, stainless steel, particles coated with nickel, cobalt, iron, etc. on the surface of conductive or insulating particles, conductivity such as carbon Examples thereof include particles, particles obtained by plating resin, insulating ceramic, and the like with a magnetic conductor. The shape of the conductive particles can be in the form of fibers, fine wires, scales, etc. in addition to the spherical shape.

  In order to manufacture the conductive rubber connector 11, a method of magnetically orienting the magnetic conductive particles to be the conductive portion 12 in the rubber-like elastic body can be employed. A raw material composition L in which magnetic conductive particles are dispersed in a liquid rubber which is cured to form a rubbery elastic body, and a gold comprising an upper die Da and a lower die Db with magnetic pins P as shown in FIG. Prepare mold D. Then, the raw material composition L is injected into the mold D (FIG. 5), and a magnetic field is applied to magnetically orient the magnetic conductive particles in the liquid rubber. The conductive rubber connector 11 can be obtained by curing the liquid rubber (FIG. 6). 4 to 6 show an example in which three conductive rubber connectors 11 are formed. When the conductive rubber connectors 11 are formed as an assembly, the individual conductive rubber connectors 11 are removed after demolding. Divide.

  Next, the relationship between the upper die Da forming the curved surface connecting portion 14 and the magnetic pin P will be described more specifically. FIG. 7A shows an upper die Da1, which is an example of the upper die for forming the curved surface contact portion. In this mold Da1, when the diameter of the cavity (recess) C serving as the curved contact portion 14 is 2r, a magnetic pin P1 having a diameter of about r is provided at the center of the cavity C. FIG. 7B shows a front view and a plan view of the curved contact portion 14 portion of the conductive rubber connector 11a formed from the mold Da1. As shown in FIG. 7B, in the curved surface contact portion 14 obtained from the mold Da1, the island-shaped non-conductive portion 16 appears slightly small at the apex portion of the curved surface 14a, and around the magnetic pin P1 The conductive portion 12 having an outer periphery corresponding to the size of the outer shape appears.

  FIG. 8A shows another upper die Da2 that forms the curved surface contact portion. In this mold Da2, when the diameter of the cavity (recess) C serving as the curved contact portion 14 is 2r, the magnetic pin P2 having the same size as that of the cavity C is provided with the magnetic pin P2. As shown in FIG. 8B, in the curved surface contact portion 14 formed from the mold Da2, the island-shaped non-conductive portion 16 appears greatly in the central portion of the curved surface 14a, and around the magnetic pin P2, A conductive portion 12 having an outer periphery corresponding to the size of the outer shape appears.

  The reason why such island-like non-conductive portions 16 are formed is considered as follows. In order to form the curved surface connecting portion 14, an upper die Da having a cavity C recessed in a hemispherical shape corresponding to the curved surface connecting portion 14 is used, but the surface of the magnetic pin P also has a curved surface so as to correspond to the cavity C. What is dented in the shape will be used. Thus, when the magnetic pin P in which the central portion is recessed from the periphery is used, a strong magnetic force is generated at the end portion of the magnetic pole (magnetic pin) rather than the center. As a result, it is considered that the central portion of the magnetic pin P having a weak magnetic force has a small amount of conductive particles, and the island-shaped non-conductive portion 16 having a low conductive particle density is formed.

  As described above, in the conductive rubber connector 11 having the hemispherical curved contact portion 14, assuming that the radius of the hemisphere is r, the mold corresponding to the curved contact portion 14 has a diameter of about r to 2 r. It is preferable to use a mold D provided with a magnetic pin P to be. By setting the diameter of the magnetic pole for applying a magnetic field to the curved contact portion 14 to be r or more, an island-like non-conductive portion 16 with few conductive particles is formed on the top of the tip of the curved contact portion 14, and the conductive particles around the tip are formed. It becomes easy to form many conductive portions 12. When the diameter of the magnetic pole is less than r, the conductive particles gather at the top of the tip of the curved contact portion 14, and the top of the tip tends to become the conductive portion 12, making it difficult to form the island-like non-conductive portion 16. Further, when the diameter of the magnetic pole exceeds 2r, the island-shaped non-conductive portion 16 is easily formed, but the conductive portion is formed to the base portion 13a beyond the range of the curved contact portion 14. Yes, by setting it to 2r or less, it is possible to prevent the conductive portion 12 from being formed outside the curved contact portion 14.

  In the case where the curved surface 14a of the curved contact portion 14 is formed in a dome shape, the degree of protrusion of the top portion is smaller than in the case of a hemispherical shape. Therefore, when magnetically orienting magnetically conductive particles, the degree of weakening of the magnetic force at the top portion of the curved surface 14a is reduced, and the island-like nonconductive portion 16 is less likely to occur. Therefore, in the case of a dome shape, assuming that the radius of the bottom surface of the dome-shaped curved contact portion 14 is r, the mold corresponding to the curved contact portion 14 has a diameter that exceeds r. A mold D provided with magnetic pins P is preferable. The upper limit of the diameter is 2r or less, the same as in the case of a hemisphere.

  According to such a manufacturing method in which the magnetic conductive particles are magnetically oriented, the conductive portions 12 that are arranged at high density in the rubber-like elastic body of the base portion 13 to form a conduction path penetrate the base portion 13. The surface of the conductive portion 12 can be exposed in an annular shape in the curved surface contact portion 14, and the non-conductive island with a small amount of conductive particles is formed on the top end portion inside the annular shape. The non-conductive portion 16 can be formed. Furthermore, the above-described manufacturing method is preferable in that the conductivity can be increased with a small amount of conductor and the soft conductive portion 12 can be formed. Furthermore, it is preferable in that a thin and small conductive portion 12 can be easily formed.

  Next, a method for attaching the conductive rubber connector 11 between the connection target members will be described. As an example, the island-shaped non-conductive portion 16 of the conductive rubber connector 11 is first brought into contact with the connection target member, and then the conductive rubber connector 11 is slid while sliding to the conductive portion of the connection target member. This is a method of fixing after tilting to a position where the conductive portion 12 contacts (slide insertion). Since the island-like non-conductive portion 16 has a small amount of conductive particles in the rubber-like elastic body, it is difficult for the conductive particles to drop off or to have a chipped surface even when sliding and rubbing against the connection target member. There is an advantage. Further, in this method, as shown in FIG. 9, the connection target member 1 that is in contact with the curved surface contact portion 14 can be brought into contact as an inclined surface that is not perpendicular to the orientation direction of the conductive portion 12 but is inclined.

  The inclination angle when the connection target member is brought into contact with the orientation direction of the conductive portion 12 is preferably 10 degrees or more and 45 degrees or less. By setting the angle to 10 to 45 degrees, the connection to the conductive portion 12 can be ensured. In addition to the slide insertion, a fixing means for the flat contact portion 15 and the connection target member 2 to be described later can also be used. In FIG. 9, the conductive portion 12 is represented as an aggregate of conductive particles.

  On the other hand, the flat contact portion 15 side is conductively connected to the connection target member 2 such as a circuit board. The conductive portion 12 on the flat contact portion 15 side of the conductive rubber connector 11 is aligned and fixed to the terminal portion on the connection target member 2, and the connection target member 2 and the conductive rubber connector 11 together are connected to the connection target member 1 such as a casing. It is possible to slide and insert into the connection target member 1 by being inserted into the connection target member 1. In the fixed arrangement of the flat contact portion 15 and the connection target member 2, a fitting portion corresponding to the flat contact portion 15 is formed on the connection target member 2 side, and the flat contact portion 15 is connected to the connection target member 2. A method of fitting and fixing, a method of attaching an adhesive or double-sided tape to the connection target member 2 other than the exposed surface of the conductive portion 12, a method of soldering the conductive portion 12 and the terminal portion of the connection target member 2, etc. Can be done by.

  Another method for attaching the conductive rubber connector 11 between the connection target members is the same as the previous example in that the island-like non-conductive portion 16 of the conductive rubber connector 11 is first brought into contact with the connection target member. However, instead of sliding the conductive rubber connector 11 next, as shown in FIG. 10, the tip of the conductive rubber connector 11 is bent, and the conductive portion 12 with respect to the conductive portion of the connection target member. There is a method of fixing by contacting. In the conventional conductive rubber connector, it should be avoided that the conductive rubber connector is bent. However, according to the conductive rubber connector 11, the conductive portion 12 is conductively connected to the connection target member 1 even if it is bent. It can also be adopted.

  Thus, in the conductive rubber connector 11, the island-shaped non-conductive portion 16 at the top end of the curved contact portion 14 is slid with respect to the connection target member 1 such as a casing by sliding on the island-shaped non-conductive portion 16 or bending the base portion 13a. The exposed portion of the conductive portion 12 around the non-conductive portion 16 can be brought into contact to be electrically connected.

Second Embodiment [FIGS. 11 and 12]:
FIG. 11 shows a front view of the conductive rubber connector 21 of the present embodiment. In this conductive rubber connector 21, not only one side but also the other side protruding portion is a curved contact portion 14. FIG. 12 shows a state in which the conductive rubber connector 21 is sandwiched between the connection target members 1 and 2. As shown in FIG. 12, not only the connection target member 1 that contacts the upper curved surface contact portion 14 but also the connection target member 2 that contacts the lower curved surface contact portion 14 also corresponds to the orientation direction of the conductive portion 12. Contact can be made as an inclined surface that is not vertical but inclined.

Third Embodiment [FIGS. 13 to 15]:
A front view of the conductive rubber connector 31 of this embodiment is shown in FIG. The conductive rubber connector 31 is formed by integrally forming a plate-like member 38. The plate-like member 38 is a resin film, a metal plate, or the like, and can be a flexible printed circuit board or the like on which a circuit is formed. The plate-like member 38 is provided substantially perpendicular to the conductive portion 12, but does not divide the conductive portion 12 that is continuous from one side to the other side, and is provided with notches and holes to penetrate the conductive portion 12. Yes.

  As shown in FIG. 14, if the conductive rubber connector 31a has a plurality of conductive portions 12 formed of an aggregate of conductive particles, the plate member 38 is formed of a metal plate so that the portion of the metal plate is also formed. It can be a conductive part. Thereby, the some electroconductive part 12 can be conducted through a metal plate. When the conductive rubber connector 31a is a connection target member such as the connection target member 3 illustrated in FIG. Even if the conductive member 12 is not conductively connected to the connection target member 3, the other conductive part 12 can be conductively connected to the connection target member 3, and is used for applications such as connecting the connection target member 2 to the connection target member 3. Can do.

  Further, if the plate-like member 38 is a circuit board such as a flexible printed board, the conductive rubber connector 31a integrated with such a circuit board can be formed. In this case, the conductive portion 12 is provided on the conductive portion on the circuit board. Can be brought into contact with each other. Since the conductive rubber connectors 31 and 31a have the plate-like member 38, they can be easily inserted by sliding and have excellent handleability.

  The above embodiment is an exemplification, and various changes can be made without departing from the spirit of the present invention. For example, the surface shape of the protrusions 14 and 15 is preferably a curved surface 14a such as a hemispherical shape or a dome shape, but can also be a semi-cylindrical shape (kamaboko shape) other than this, A conical shape, a truncated cone shape, a quadrangular pyramid shape, or the like can also be used. If there are many corners, the conductive particles will easily fall off due to sliding with the connection target member, but the shape of the protrusion can be suitably changed depending on the shape of the connection target member, the degree of inclination at the time of connection, etc. . In order to make such a shape, it can be changed to a desired shape by scraping the surface of the curved contact portion formed as a hemispherical shape or a dome shape.

1, 2, 3 Connection target member 11, 11a, 11b, 21, 31, 31a Conductive rubber connector 12 Conductive portion 13 Base portion 13a Base portion 13b Side protruding portion 14 Curved surface contact portion 14a Curved surface 15 Flat contact portion 15a Flat Surface 16 Island-like non-conductive part 38 Plate member P, P1, P2 Magnetic pin (magnetic pole)
D Die Da, Da1, Da2 Upper mold Db, Db1, Db2 Lower mold L Raw material composition C Cavity

Claims (7)

A conductive portion in which a plurality of conductive particles are continuously formed and a base portion made of a rubber-like elastic body that holds the conductive portion, and one and the other connection target members are conductively connected through the conductive portion. Conductive rubber connector
A projecting portion that contacts at least one of the one and the other connection target members is formed, and the projecting portion includes the conductive portion that is annularly exposed on the surface, and an inner side of the conductive portion. A conductive rubber connector comprising a non-conductive island-shaped non-conductive portion exposed in
The conductive rubber connector according to claim 1, wherein the protrusion is a curved contact portion in which the surface is a curved surface.
The conductive rubber connector according to claim 1, wherein a surface of the protruding portion is hemispherical or dome-shaped.
The conductive rubber connector according to any one of claims 1 to 3, wherein the island-shaped non-conductive portion is surrounded by a conductive portion in an internal portion other than the surface of the protruding portion.
5. The conductive rubber connector according to claim 1, wherein the island-shaped non-conductive portion is a portion having few conductive particles in the rubber-like elastic body and having no conductivity.
The protruding portion is in contact with either one of the one or the other connection target member, and the contact portion in contact with any one of the other is a flat contact portion having a flat surface. The conductive rubber connector according to claim 1, wherein the conductive rubber connector is formed.
A conductive rubber connector mounting method for mounting the conductive rubber connector according to any one of claims 1 to 6 so as to be conductively connected to the connection target member,
The surface of the protrusion is slid with respect to the connection target member, the conductive portion in the protrusion is aligned with the connection position of the connection target member, and the connection target member is separated from the tip of the protrusion. How to install a conductive rubber connector that is conductively connected.

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