JP2016091899A - Cable clamp and cable clamp connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform attachment and detachment while reducing the number of steps and the number of components, in simple configuration, when performing fitting to electrical equipment.SOLUTION: A jacket barrel part 12 or a shield barrel part 43 comprises an elastic contact plate 12b or 43b which is brought into elastic contact with a conducting path 32 of the electrical equipment and since electrical connections are performed by elastic displacement of the elastic contact plate 12b or 43b itself, in fitting cable clamps 10 and 40, a soldering step or an adhesion step in the prior arts is omitted and the cable clamps are directly electrically connected without interposing a wiring board. By elastically displacing the elastic contact plates 12b and 43b again while reducing the number of components or the number of steps, the cable clamps 10 and 40 can be removed.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a cable clamp and a cable clamp connection structure that perform ground connection by being attached to an intermediate portion of a coaxial cable.

  In recent years, it has become important to improve ground characteristics and EMI (electromagnetic wave interference) characteristics as the frequency of transmission signals used in various electronic devices such as cellular phones or electric devices increases. From this point of view, a countermeasure is often adopted in which a cable clamp is attached to the middle portion of the coaxial cable to perform ground connection. For example, in the cable clamp connection structure in which the conventional cable clamp 1 shown in FIG. 24 is attached to the coaxial cable 2, the outer sheath 2a of the coaxial cable 2 is attached as shown in FIG. The shield barrel portion 1a of the cable clamp 1 is attached by plastic deformation such as caulking to the outer conductor 2b exposed at the portion where the outer covering 2a is removed. Next, on both sides of the shield barrel 1a, the outer jackets 2a and 2a of the coaxial cable 2 are covered from the outside so that each of the pair of jacket barrels 1b and 1b is also plastically deformed, such as caulking. To wear each.

  The cable clamp 1 attached to the coaxial cable 2 in this way is connected to a wiring board (not shown) by soldering or using an adhesive, and is attached to the casing of the electric device via the wiring board. An electrical ground circuit is formed.

  However, in the conventional cable clamp that is attached to the housing of the electric device via the wiring board fixed by soldering or an adhesive as described above, the process of attaching the cable clamp takes time and is used for the attachment. The number of parts tends to increase. Moreover, it is difficult to remove the cable clamp once attached to the housing of the electric device, and it is difficult to use it repeatedly.

JP 2004-31217 A JP 2013-145670 A

  Therefore, the present invention has an object to provide a cable clamp and a cable clamp connection structure that can be attached and detached while reducing the number of steps and the number of parts when attaching to an electrical device with a simple configuration. .

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a shield barrel portion for gripping the exposed outer conductor by partially peeling the outer sheath of the coaxial cable, and a jacket barrel for gripping the outer sheath of the coaxial cable. A clamp that is fixed to the outer sheath of the coaxial cable by plastic deformation of the jacket barrel portion. Part and an elastic contact portion provided so as to be elastically displaceable in the radial direction of the coaxial cable, and a conductive path forming a part of a ground circuit is formed in the housing of the electric device, Adopted a configuration in which the elastic contact portion of the jacket barrel portion is in an elastically displaced state with respect to the conductive path provided in the casing of the electrical device. It has been.

  According to the invention according to claim 1 having such a configuration, the elastic contact portion provided in the jacket barrel portion is electrically connected to the conductive path of the electric device by its own elastic displacement. When the cable clamp is attached to the conventional soldering process, the conventional soldering process and bonding process are omitted. In addition, the elastic contact portion of the jacket barrel portion at that time is directly connected to the conductive path provided in the casing of the electric device without interposing a wiring board or the like. The number of parts and the number of processes are reduced. In addition, the cable clamp can be removed from the electric device by elastically displacing the elastic contact portion of the jacket barrel portion again.

  Further, in the present invention, as in claim 2, the jacket barrel portion can be configured to be a pair arranged with the shield barrel portion sandwiched from both sides in the axial direction of the coaxial cable.

  Furthermore, in the present invention, as in claim 3, the shield barrel portion is provided with a plurality of clamp claws that are plastically deformed so as to grip the outer conductor of the coaxial cable in the axial direction of the coaxial cable. Can be configured.

  Furthermore, the invention according to claim 4 includes a shield barrel portion that grips the exposed outer conductor by partially peeling the outer sheath of the coaxial cable, and a jacket barrel portion that grips the outer sheath of the coaxial cable. In the cable clamp configured to be connected to the ground by being attached to the casing of the electrical device, the shield barrel portion is plastically deformed to be contacted and fixed to the outer conductor of the coaxial cable; and A conductive path that forms a part of a ground circuit in a housing of the electric device, and has an elastic contact portion that is elastically displaceable in a radial direction of the coaxial cable. A configuration is adopted in which the elastic contact portion of the shield barrel portion is brought into contact with the conductive path provided in the housing of the device in an elastically displaced state.

  According to the invention of claim 4 having such a configuration, the elastic contact portion provided in the shield barrel portion is electrically connected to the conductive path of the electric device by its own elastic displacement. When the cable clamp is attached to the conventional soldering process, the conventional soldering process and bonding process are omitted. In addition, the elastic contact portion of the shield barrel at that time is directly connected to the conductive path provided in the casing of the electric device without interposing a wiring board or the like, so that the cable clamp mounting The number of parts and the number of processes are reduced. In addition, the cable clamp can be removed from the electric device by elastically displacing the elastic contact portion of the shield barrel portion again.

  In the present invention, as in claim 5, the elastic contact portion of the shield barrel portion includes a plurality of belt-like members extending in the axial direction of the coaxial cable in an annular shape in the circumferential direction of the coaxial cable. It is possible to adopt a configuration in which a slit extending in the axial direction of the coaxial cable is formed between the strip-shaped members adjacent to each other in the circumferential direction of the coaxial cable. .

  Furthermore, in the invention concerning Claim 6, while the clamp attachment groove part which can accommodate the cable clamp of Claims 1-5 is formed in the housing | casing of the said electric equipment, the internal space of the said clamp attachment groove part is formed. The conductive path is formed on the wall surface, and the elastic contact portion of the cable clamp accommodated in the internal space of the clamp mounting groove portion is provided on the conductive path provided on the wall surface of the clamp mounting groove portion. It is made into the structure which contacts elastically with respect.

  According to the invention concerning Claim 6 which has such a structure, the elastic contact part provided in the jacket barrel part or the shield barrel part is electrically connected to the conductive path of the electric device by its own elastic displacement. Therefore, when attaching the cable clamp to the electric device, the conventional soldering process and bonding process are omitted. In addition, the elastic contact portion of the jacket barrel portion or the shield barrel portion at that time is directly connected to the conductive path provided in the casing of the electric device without interposing a wiring board or the like, The number of parts and processes for attaching the cable clamp are reduced. In addition, the cable clamp can be removed from the electric device by elastically displacing the elastic contact portion of the jacket barrel portion or the shield barrel portion again.

  As described above, in the cable clamp according to the present invention, the jacket barrel portion or the shield barrel portion has the elastic contact portion that is elastically contacted with the conductive path of the electric device, and the elastic contact portion is its own. Since it is electrically connected to the conductive path of the electric device by elastic displacement, the conventional soldering process and bonding process are omitted, and the wiring board is connected to the conductive path provided in the electric device casing. The cable clamp is directly attached without any intervention. Therefore, since the number of parts for connecting the cable clamp and the number of processes are reduced, and the elastic contact portion is elastically displaced again, the cable clamp can be detached. Thus, the attachment and detachment can be performed while reducing the number of steps and the number of parts when attaching to the electric device, and the reliability of the cable clamp and the cable clamp connection structure can be improved at a low cost.

It is an appearance perspective explanatory view showing the initial state before the cable clamp concerning a 1st embodiment of the present invention is attached to a coaxial cable. FIG. 2 is an explanatory plan view of the cable clamp in the initial state shown in FIG. 1. It is side surface explanatory drawing of the cable clamp in the initial state shown in FIG.1 and FIG.2. It is front explanatory drawing of the cable clamp in the initial state shown in FIGS. FIG. 5 is an external perspective explanatory view showing a state in which a coaxial cable is accommodated in the cable clamp in the initial state shown in FIGS. 1 to 4. FIG. 6 is an explanatory plan view illustrating a state in which a coaxial cable is accommodated in the cable clamp in the initial state illustrated in FIG. 5. It is side surface explanatory drawing showing the state which accommodated the coaxial cable in the cable clamp of the initial state shown in FIG.5 and FIG.6. It is front explanatory drawing showing the state which accommodated the coaxial cable in the cable clamp of the initial state shown in FIGS. It is an external appearance perspective explanatory view showing the connection state after clamping from the state where the coaxial cable was stored in the cable clamp of the initial state shown in FIGS. FIG. 10 is an explanatory plan view of the coaxial cable and the cable clamp in the connection state shown in FIG. 9. It is side surface explanatory drawing of the coaxial cable and cable clamp in the connection state shown to FIG.9 and FIG.10. It is front explanatory drawing of the coaxial cable and cable clamp in the connection state shown in FIGS. It is an external appearance perspective explanatory view showing the state where the cable clamp in the connection state shown in Drawing 9-Drawing 12 was arranged above the case of an electric equipment. It is side surface explanatory drawing showing the state which has arrange | positioned the cable clamp in a connection state above the housing | casing of the electric equipment shown in FIG. FIG. 15 is a cross-sectional explanatory diagram illustrating a state in which a cable clamp in a connected state is arranged above the housing of the electric device illustrated in FIGS. 13 and 14. It is an external appearance perspective explanatory view showing the state where the cable clamp in the connection state shown in FIG. 13 was pushed down and attached to the housing of the electric device. FIG. 17 is a cross-sectional explanatory diagram illustrating a state in which the cable clamp in the connection state illustrated in FIG. 16 is attached to the housing of the electric device. FIG. 18 is an external perspective explanatory view showing the cable clamp and the coaxial cable attached to the casing of the electric device shown in FIG. 17 with the casing of the electric device removed. It is an appearance perspective explanatory view showing the state after a cable clamp concerning a 2nd embodiment of the present invention was attached to a coaxial cable, and was clamped. FIG. 20 is an explanatory plan view of the cable clamp in the clamped state shown in FIG. 19. It is side surface explanatory drawing of the cable clamp in the clamp state shown in FIG.19 and FIG.20. It is front explanatory drawing of the cable clamp in the clamp state shown in FIGS. FIG. 23 is an external perspective explanatory view showing a single product structure of the cable clamp shown in FIGS. 19 to 22. It is an external appearance perspective explanatory view showing the state where the generally used cable clamp was attached to the coaxial cable by caulking. FIG. 25 is an external perspective explanatory view showing a state in which the outer sheath is partially cut and removed from the coaxial cable to which the cable clamp shown in FIG. 24 is attached.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a cable clamp connection structure using a cable clamp according to the present invention will be described in detail with reference to the drawings.

  First, a cable clamp 10 according to an embodiment of the present invention shown in FIGS. 1 to 12 is formed by cutting and pressing a metal plate made of a conductive member. It is made to be attached to the middle part of the plate by plastic deformation such as caulking. Thus, the cable clamp 10 attached to the middle portion of the coaxial cable 20 is used by being attached to an electric device, and the ground connection to the outer conductor of the coaxial cable 20 described later is performed via the cable clamp 10.

  Here, as shown in FIG. 5, the coaxial cable 20 to which the cable clamp 10 is attached has an outer conductor 23 for shielding via a dielectric 22 on the outer peripheral side of the central conductor 21 for signal transmission. In addition to being coaxially stacked, an outer covering 24 made of an insulating material is disposed on the outer peripheral side of the outer conductor 23 so as to cover the outermost peripheral portion of the entire cable.

  The cable clamp 10 in the initial state (see FIGS. 1 to 4) before being attached to the coaxial cable 20 is formed of a hook-like member extending in the axial direction of the coaxial cable 20. The coaxial cable 20 is accommodated in the internal space of the cable clamp 10 through an upper opening having a groove width corresponding to 20.

  A bottom portion of the cable clamp 10 having an internal space for accommodating the coaxial cable 20 is formed by a clamp bottom wall plate 11 having a substantially circular arc cross section. The clamp bottom wall plate 11 of the cable clamp 10 extends continuously along the axial direction of the coaxial cable 20 and is coaxial with the inner surface of the clamp bottom wall plate 11 having a curved cross section. The cable 20 is placed from above, and the coaxial cable 20 is supported by receiving the lower half portion of the coaxial cable 20 from the lower side by the clamp bottom wall plate 11.

  As described above, the clamp bottom wall plate 11 of the cable clamp 10 is formed so as to continuously extend along the clamp longitudinal direction which is the axial direction of the coaxial cable 20. A pair of jacket barrel portions 12 and 12 are integrally provided on the upper side of the above-described clamp bottom wall plate 11 at both end portions in the clamp longitudinal direction (axial direction). Further, a shield barrel portion 13 integrally connected to each jacket barrel portion 12, 12 via a clamp bottom wall plate 11 is provided between the jacket barrel portions 12, 12. It is provided integrally on the upper side of the plate 11.

  Here, the cable clamp 10 in the present embodiment has a symmetrical shape and structure in the longitudinal direction of the clamp, which is the axial direction of the coaxial cable 20, and the jacket barrel portions 12 and 12 and the shield barrel portion 13 described above are also provided. The cable clamp 10 has a symmetrical shape and structure with respect to the center in the clamp longitudinal direction (axial direction). A part of the jacket barrel portions 12 and 12 and the shield barrel portion 13 arranged so as to extend integrally along the longitudinal direction of the clamp via the clamp bottom wall plate 11 in this way are connected to the coaxial cable 20. The outer coating 24 and the outer conductor 23 are plastically deformed toward the center in the radial direction so as to be wound from above, and are thereby crimped.

  Each of the jacket barrel portions 12 has a jacket clamp plate 12a as a clamp portion referred to in the present invention on the outer side portion in the clamp longitudinal direction (axial direction), and from the jacket clamp plate 12a. An elastic contact plate 12b is provided as an elastic contact portion referred to in the present invention at a distance from the inner side of the clamp longitudinal direction (axial direction).

  The jacket clamp plate 12a of each jacket barrel portion 12 is formed of a pair of plate-like pieces protruding obliquely upward from both side end portions in the cross-section arc shape of the clamp bottom wall plate 11 described above. The pair of plate-like pieces constituting the jacket clamp plate 12a extend obliquely upward and away from each other, and as described above, each other toward the radially inner side of the coaxial cable 20. By being plastically deformed so as to be close to each other, the outer cover 24 of the coaxial cable 20 is pressed from above to be caulked and fixed.

  Further, as described above, the elastic contact plate 12b disposed inward in the longitudinal direction of the clamp (axial direction) with respect to the jacket clamp plate 12a is connected to the ground conductive path 32 (FIGS. 13 to 17) of the electric device described later. Reference) is elastically contacted. The elastic contact plate 12b is disposed in a boundary region from the portion where the outer sheath 24 of the coaxial cable 20 is cut, that is, from the cut end surface of the outer sheath 24 to the outer conductor 23 exposed by the removal of the outer sheath 24. A pair of plate-like pieces constituting the elastic contact plate 12b is formed from both side end portions in the circular arc shape of the clamp bottom wall plate 11 disposed in the boundary region between the outer sheath 24 and the outer conductor 23 of the coaxial cable 20. It protrudes diagonally upward.

  The elastic contact plates 12b, 12b formed of a pair of plate-like pieces are configured to be elastically displaceable by projecting in directions away from each other obliquely upward, and a housing 30 (see FIG. 13 to FIG. 17), when the cable clamp 10 is attached, the distal end portions of the elastic contact plates 12b and 12b are elastic with respect to the ground conductive path 32 provided in the housing 30 of the electric device. And elastically displaced by contact with each other.

  On the other hand, as described above, the shield barrel portion 13 disposed between the jacket barrel portions 12 and 12 is disposed so as to cover the exposed outer conductor 23 by removing the outer covering 24 from the coaxial cable 20. ing. The shield barrel portion 13 is also formed from a pair of plate-like pieces protruding obliquely upward from both side end portions in the circular arc shape of the cross section of the clamp bottom wall plate 11, and a pair constituting the shield barrel portion 13. The plate-like pieces extend obliquely upward and away from each other. And the shield barrel parts 13 and 13 which consist of a pair of these plate-shaped pieces are plastically deformed so that it may mutually adjoin toward the radial direction inner side of the coaxial cable 20, and, thereby, it becomes the outer conductor 23 of the coaxial cable 20. On the other hand, it is fixed by caulking so as to be pressed from above.

  The tip edge portions of the pair of plate-like pieces constituting such a shield barrel portion 13 are formed so as to be fitted to each other when the caulking is fixed to the coaxial cable 20 as described above. Concave clamp claws 13a and concave clamp claws 13b formed on the edge of one plate-like piece are concave clamps formed on the edge of the other plate-like piece. The claw 13b and the convex clamp claw 13a are configured to fit each other. As described above, the shield barrel portion 13 according to the present embodiment is provided with a plurality of clamp claws 13a and 13b that are plastically deformed so as to hold the outer conductor 23 of the coaxial cable 20 along the clamp longitudinal direction (axial direction). It has been made to the configuration.

  On the other hand, the cable clamp 10 having the above-described configuration is used so as to form, for example, a cable clamp connection structure shown in FIGS. 13 to 17 and is electrically connected to the housing 30 of the electric device. A ground circuit is formed. In other words, the housing 30 of the electrical device to which the cable clamp 10 is attached is formed with a clamp attachment groove 31 that can accommodate the cable clamp 10. The clamp mounting groove 31 is formed from an elongated groove having a substantially U-shaped cross section having an upper opening that can accommodate the entire cable clamp 10, and forms an internal space of the clamp mounting groove 31. Among the inner wall surfaces, both side wall surfaces arranged to face each other are formed with ground conductive paths 32 and 32 constituting a part of the ground circuit.

  The ground conductive paths 32 and 32 formed on both side walls of the clamp mounting groove 31 elastically contact the elastic contact plates 12b and 12b of the cable clamp 10 accommodated in the clamp mounting groove 31. First, as shown in FIGS. 13 to 15, the cable clamp 10 is located above the clamp mounting groove 31 provided in the housing 30 of the electric device, as shown in FIGS. 13 to 15. The cable clamp 10 is moved downward from the state, and the cable clamp 10 is accommodated so as to be pushed into the clamp mounting groove 31 as shown in FIGS. 16 and 17.

  As a result, the cable clamp 10 is accommodated in the clamp mounting groove 31. At this time, the elastic contact plates 12b and 12b of the cable clamp 10 are connected to the ground conductive paths 32 and 32 on the electric equipment side. The contact is made in an elastically displaced state, and the outer conductor 23 of the coaxial cable 20 is electrically connected to the ground circuit on the electric device side via the elastic contact plates 12b and 12b of the cable clamp 10. ing.

  According to the present embodiment having such a configuration, the elastic contact plates 12b and 12b provided in the jacket barrel portion 12 are electrically connected to the ground conductive paths 32 and 32 provided in the electric device by their own elastic displacement. Therefore, when the cable clamp 10 is attached to the electric device, the conventional soldering process and bonding process are omitted. In addition, the elastic contact plate 12b of the jacket barrel portion 10 is directly connected to the ground conductive paths 32 and 32 provided in the housing 30 of the electric device without interposing a wiring board. The number of parts and processes for attaching the cable clamp are reduced.

  Moreover, the elastic contact plates 12b and 12b of the jacket barrel portion 12 described above again determine the distance between the elastic contact plates 12b and 12b from the attached state of the cable clamp 10, that is, the pressure contact state with respect to the ground conductive paths 32 and 32. If it is elastically displaced so as to approach, the cable clamp 10 can be detached from the clamp mounting groove 31, and the cable clamp 10 can be repeatedly attached to and detached from the electrical equipment.

  On the other hand, a cable clamp 40 according to another embodiment according to FIGS. 19 to 22 in which the same reference numerals are assigned to the same constituent members as those of the above-described embodiment has one end portion in the clamp longitudinal direction (axial direction) ( A jacket barrel portion 42 is provided at the right end portion of the figure, and the jacket barrel portion 42 is gripped by being caulked and fixed to the outer sheath 24 of the coaxial cable 20 by plastic deformation.

  Further, a shield barrel portion 43 is integrally connected from the jacket barrel portion 42 so as to be continuous in the longitudinal direction of the clamp, which is the axial direction of the coaxial cable 20. The shield barrel portion 43 is configured to include a shield clamp portion 43a, an elastic contact plate 43b, and a jacket guide portion 43c in order from the jacket barrel portion 42 side along the clamp longitudinal direction (axial direction). Yes.

  Among them, the shield clamp portion 43a is integrally connected to the above-described jacket barrel portion 42 via the clamp bottom wall plate 41 so as to be adjacent to the clamp longitudinal direction (axial direction), The outer sheath 24 of the coaxial cable 20 is removed, and the outer conductor 23 is exposed and caulked and fixed by plastic deformation.

  Further, the elastic contact plate 43b is configured to extend from the shield clamp portion 43a described above in the clamp longitudinal direction (axial direction) over a predetermined length, and the outer covering 24 of the coaxial cable 20 is removed. Then, the outer conductor 23 that is exposed is disposed so as to cover from the outer side. The elastic contact plate 43b provided in the shield barrel portion 43 is formed of a plurality of band-shaped members extending in the clamp longitudinal direction (axial direction), and the plurality of band-shaped members are formed on the circle of the coaxial cable 20. It is made into the structure arrange | positioned cyclically | annularly along the circumferential direction.

  Further, as described above, the jacket guide portion 43c described above is provided at the distal end portion of the elastic contact plate 43b extending in the clamp longitudinal direction (axial direction) from the shield clamp portion 43a. The jacket guide portion 43c is disposed so as to be plastically deformed so as to surround the outer side of the outer sheath 24 of the coaxial cable 20, and is formed so as to form an arc having a slightly larger diameter than the outer sheath 24. By this, it arrange | positions so that it can move to a clamp longitudinal direction (axial center direction).

  Here, the plurality of band-shaped members forming the elastic contact plate 43b described above are slits extending in the clamp longitudinal direction (axial direction) between the adjacent members in the circumferential direction of the coaxial cable 20 Is formed. In addition, a substantially central portion in the clamp longitudinal direction (axial direction) of each of the belt-like members is formed to be bent so as to form a mountain shape projecting outward in the radial direction of the coaxial cable 20. The shape portion has a shape that is continuous in the circumferential direction of the coaxial cable 20.

  The elastic contact plate 43b projecting in a mountain shape toward the outer side in the radial direction has a cable clamp 40 in the clamp mounting groove portion 31 provided in the housing 30 of the electric device as shown in FIG. When accommodated, it is configured to elastically contact the ground conductive paths 32, 32 provided on the electric equipment side.

  At this time, since the jacket guide portion 43c is formed with an arc having a slightly larger diameter than the outer sheath 24 of the coaxial cable 20, the elastic contact plate 43b is disposed inside the clamp mounting groove portion 31 as described above. When the diameter is reduced by being accommodated, the jacket guide portion 43c moves slightly along the outer covering 24, whereby the cable clamp 40 can be accommodated smoothly.

  When the cable clamp 40 is thus housed in the clamp mounting groove 31 of the electric device, the outer conductor 23 of the coaxial cable 20 is connected to the ground circuit on the electric device side via the elastic contact plate 43b of the cable clamp 40. Is electrically connected.

  According to the second embodiment having such a configuration, the elastic contact plate 43b provided in the shield barrel portion 43 is electrically connected to the ground conductive paths 32 and 32 on the electric device side by its own elastic displacement. Thus, the same actions and effects as those of the first embodiment described above are achieved.

  In particular, in the present embodiment, the plurality of band-shaped members constituting the elastic contact plate 43b are configured to be elastically displaced by projecting in a mountain shape toward the outer side in the radial direction. A large stroke length in elastic displacement is taken, and at the same time, good spring characteristics are obtained. As a result, the mounting operability and electrical connectivity of the cable clamp 40 can be improved. Moreover, the tolerance | permissible_range with respect to the shift | offset | difference of the circumferential direction of the coaxial cable 20 with respect to the clamp attachment groove part 31 of the cable clamp 40 is wide.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiment, the present embodiment is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, the housing 30 of the electrical device in each of the embodiments described above is formed with a clamp mounting groove 31 that can accommodate one cable clamp 10 (40), but the clamp mounting groove 31 is relatively deep. Two or more cable clamps 10 (40) can be stacked and installed by forming or the like.

  Furthermore, the present invention is not limited to the single-core coaxial cable as in the above-described embodiment, and can be similarly applied to coaxial cables and the like arranged in a multipolar shape.

  As described above, the present embodiment can be widely applied to a wide variety of cable clamps used in various electric devices.

DESCRIPTION OF SYMBOLS 10 Cable clamp 11 Clamp bottom wall board 12 Jacket barrel part 12a Jacket clamp board 12b Elastic contact board 13 Shield barrel part 13a Convex clamp claw 13b Concave clamp claw 20 Coaxial cable 21 Center conductor 22 Dielectric 23 External conductor 24 Outer coating 30 Electricity Equipment housing 31 Clamp mounting groove 32 Ground conductive path 40 Cable clamp 41 Clamp bottom wall plate 42 Jacket barrel portion 43 Shield barrel portion 43a Shield clamp portion 43b Elastic contact plate 43c Jacket guide portion

Claims (6)

A shield barrel portion for gripping the exposed outer conductor by partially peeling off the outer sheath of the coaxial cable; and a jacket barrel portion for gripping the outer sheath of the coaxial cable;
In cable clamps that are attached to the housing of electrical equipment and configured to be grounded,
While the jacket barrel portion has a clamp portion that is fixed to the outer sheath of the coaxial cable by being plastically deformed, and an elastic contact portion that is elastically displaced in the radial direction of the coaxial cable,
A conductive path forming a part of a ground circuit is formed in the casing of the electric device,
A cable clamp, wherein the elastic contact portion of the jacket barrel portion is brought into contact with a conductive path provided in a casing of the electric device in an elastically displaced state.   2. The cable clamp according to claim 1, wherein a pair of the jacket barrel portions are disposed with the shield barrel portions sandwiched from both sides in the axial center direction of the coaxial cable.   2. The cable according to claim 1, wherein the shield barrel portion is provided with a plurality of clamp claws plastically deformed so as to grip an outer conductor of the coaxial cable in an axial direction of the coaxial cable. Clamp. A shield barrel portion for gripping the exposed outer conductor by partially peeling off the outer sheath of the coaxial cable; and a jacket barrel portion for gripping the outer sheath of the coaxial cable;
In cable clamps that are attached to the housing of electrical equipment and configured to be grounded,
While the shield barrel portion has a clamp portion that is fixed in contact with the outer conductor of the coaxial cable by being plastically deformed, and an elastic contact portion that is provided so as to be elastically displaceable in the radial direction of the coaxial cable,
A conductive path forming a part of a ground circuit is formed in the casing of the electric device,
A cable clamp, characterized in that an elastic contact portion of the shield barrel portion is brought into contact with a conductive path provided in a casing of the electric device in an elastically displaced state. The elastic contact portion of the shield barrel portion includes a plurality of band-like members extending in the axial direction of the coaxial cable, and arranged in a ring shape in the circumferential direction of the coaxial cable,
The cable clamp according to claim 4, wherein a slit extending in an axial direction of the coaxial cable is formed between the belt-shaped members adjacent to each other in the circumferential direction of the coaxial cable. A clamp mounting groove that can accommodate the cable clamp according to claim 1 is formed in the casing of the electric device, and
The conductive path is formed on the wall surface forming the internal space of the clamp mounting groove,
The elastic contact portion of the cable clamp accommodated in the internal space of the clamp mounting groove is configured to elastically contact a conductive path provided on the wall surface of the clamp mounting groove. Cable clamp connection structure.

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