JP2022186344A - electrical connector unit - Google Patents

Abstract

To provide an electrical connector unit including a configuration of more suitable electromagnetic shield for electrically shielding a cable and a terminal connected to the cable.SOLUTION: There is provided an electrical connector unit including a connector and a cable connected to the connector. The cable includes an internal cable bundle comprising a plurality of internal cables, a cable shield, and an insulating coating member surrounding the internal cable bundle and the cable shield. The connector includes an enclosure housing, and a connector shield provided in the enclosure housing. A linear shield which is part of the cable shield and extends from the cable shield is attached to the connector shield.SELECTED DRAWING: Figure 7A

Description

The present disclosure relates to electrical connector units. In particular, the present disclosure relates to electrical connector units having cables to be electrically connected.

US Pat. No. 5,900,002 discloses a multi-pole L-shaped connector for connecting a multi-core cable to an electrical device.

In such a connector, the cable attached to the connector and the terminal provided on the connector are electrically connected in order to suppress the radiation of electromagnetic waves to the outside due to the signal delivered to the electrical device or the intrusion of electromagnetic waves from the outside. A shielding electromagnetic shield structure is provided.

JP 2018-45835 A

The inventors of the present application have noticed that there are problems to be overcome in the structure of the electromagnetic shield of conventional connectors, and have found the necessity of taking countermeasures therefor. Specifically, it was found that there are the following problems.

For example, in the connector disclosed in Patent Document 1, an outer conductor surrounding the outer peripheral side of the inner cable is electrically connected to a shield member provided in a connector housing having terminals inside. When connecting, the end of the insulating film covering the outer circumference of the outer conductor is removed, the end of the outer conductor is entirely folded outward, and a copper tape is wrapped around the folded portion to terminate the cable. be. That is, in such terminal treatment, the folded outer conductor is positioned directly on the insulating coating. The external conductor and the shield member are electrically connected by crimping or pressing the shield member against such a terminal processed portion.

However, since the insulation coating of cables used in such connectors is generally made of a heat-shrinkable material that shrinks as the temperature rises, the outer diameter of the cable is reduced by the heat generated by the operation of electrical equipment. may be reduced. Therefore, in the connection made by crimping or pressing the outer circumference of the cable as described above, contact failure may occur due to the reduction in the outer diameter of the cable due to heat generation from the electrical device, and the function of the electromagnetic shield will be impaired. I have concerns.

The present disclosure has been made in view of such problems. SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present disclosure to provide an electrical connector unit with a more suitable electromagnetic shield configuration for electrically shielding a cable and terminals connected to the cable.

To achieve the above object, the present disclosure provides an electrical connector unit comprising a connector and a cable connected to the connector, wherein the cable is an internal cable bundle composed of a plurality of internal cables, a cable a shield and an insulating covering member surrounding the inner cable bundle and the cable shield, the connector comprising an enclosure housing and a connector shield provided within the enclosure housing; An electrical connector unit is provided in which a linear shield that is part of said cable shield and drawn out from said cable shield is attached to said connector shield.

The electrical connector unit according to the present disclosure provides a more suitable electromagnetic shield configuration for electrically shielding cables and terminals connected to the cables.

More specifically, in the electrical connector unit of the present disclosure, by attaching a linear shield pulled out from a cable shield provided on a cable to a connector shield provided in the housing of the connector, It can constitute an electromagnetic shield. Therefore, the connection between the cable shield and the connector shield is performed without being directly related to the outer diameter of the cable, and the occurrence of poor connection due to changes in the outer diameter of the cable can be more preferably prevented. .

1 is a schematic perspective view of an electrical connector unit according to an embodiment of the present disclosure; FIG. FIG. 2 is a schematic cross-sectional view of a cable according to an embodiment of the present disclosure; 3 is an exploded perspective view schematically illustrating an electrical connector unit according to one embodiment of the present disclosure; FIG. FIG. 4 is a perspective view schematically showing a state in which a connector shield of an electrical connector unit and a linear cable are connected according to an embodiment of the present disclosure; 5A is a perspective view schematically showing a state before connection of a connector shield and a linear cable of an electrical connector unit according to an embodiment of the present disclosure; FIG. 5B is a perspective view schematically showing a state in which the connector shield of the electrical connector unit and the linear cable are connected according to the embodiment of the present disclosure; FIG. FIG. 6 is a perspective view schematically showing a state in which a connector shield of an electrical connector unit and a linear cable are connected according to an embodiment of the present disclosure; FIG. 7A is a perspective view schematically showing the configuration of an electromagnetic shield before mating a connector and a device connector according to an embodiment of the present disclosure; 7B is a perspective view schematically showing the configuration of the electromagnetic shield after mating the connector and the device connector according to one embodiment of the present disclosure; FIG.

An electrical connector unit according to an embodiment of the present disclosure will now be described in more detail with reference to the drawings. Various elements in the drawings are only schematically and exemplarily shown for explanation of the present disclosure, and their appearance, dimensional ratios, etc. may differ from the actual ones.

Furthermore, in the following description, terms indicating specific directions and positions are used as necessary. However, the use of these terms is for the purpose of facilitating the understanding of the invention with reference to the drawings, and the technical scope of the present disclosure is not limited by the meanings of these terms. Also, parts with the same reference numerals in multiple drawings refer to the same or equivalent parts.

Also, the description of the exemplary aspects of the present disclosure is intended to be read in conjunction with the accompanying drawings, which are to be considered part of the entire written description. In the description of aspects of the disclosure disclosed herein, any references to directions or orientations are for convenience of description only and are not intended to limit the scope of the disclosure. Relative terms such as "below", "above", "horizontal", "vertical", "above", "below", "top", "bottom" and their derivatives, "horizontally", " "Downward", "upwardly", etc. should be understood to refer to directions as written or illustrated. Such relative terms are for convenience of description only and do not imply a particular orientation or orientation of the device unless explicitly stated otherwise. Also, terms such as "attached," "attached," "connected," "coupled," and "interconnected," and similar terms are not explicitly described separately. To the extent that the structures are directly or indirectly fixed or attached to each other by an intervening structure, they are both movable or rigidly attached or in relation to each other. Furthermore, features or benefits of this disclosure are illustrated by reference to preferred embodiments. Such aspects are described in sufficient detail to enable those skilled in the art to practice the disclosure. Also, it should be understood that other aspects may be utilized and process, electrical or mechanical changes are possible without departing from the scope of the present disclosure. Accordingly, the present disclosure is not expressly limited to the preferred embodiments (either alone or in combination with other features), which exemplify the non-limiting combinations of features contemplated.

A feature of the present disclosure relates to the construction of electromagnetic shields in electrical connector units. However, here, in order to understand the overall electrical connector unit, the outline of the electrical connector unit will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view of an electrical connector unit 1000 according to one embodiment of the present disclosure. The electrical connector unit 1000 includes a connector 100 and a cable 200 connected to the connector 100 as main components. Also, the electrical connector unit 1000 further comprises a device connector 300 provided on the device. Device connector 300 is configured to be installed on a device (not shown) and mated with connector 100 .

In the following description, the direction in which the connector 100 and the device connector 300 are combined is referred to as the "vertical direction", and the connector 100 is positioned above the device connector 300 positioned below the vertical direction.

A "unit" in the present disclosure corresponds to a composite product or combination product having a plurality of constituent elements. Accordingly, the electrical connector unit 1000 of the present disclosure is an electrical connector composite product comprising at least a cable 200, a connector 100 attached to the end of the cable 200, and a device connector 300 mated with the connector 100. or may correspond to an electrical connector assembly.

FIG. 2 schematically illustrates a cross-sectional view of cable 200 according to one embodiment of the present disclosure. Cable 200 includes an inner cable bundle 240 composed of a plurality of inner cables 230 , a cable shield 220 , and an insulating covering member 210 (or covering) surrounding inner cable bundle 240 and cable shield 220 . As shown, each of the plurality of internal cables 230 may be formed by coating the outer periphery of a conductor 231 such as pure copper wire or tinned copper wire with an insulating internal cable coating 232 . A plurality of internal cables 230 form an internal cable bundle 240 , which is surrounded by an electrically conductive cable shield 220 at its perimeter. Covering member 210 covers the perimeter of cable shield 220 and defines the perimeter of cable 200 . Such covering member 210 may also be referred to as a cable jacket.

The covering member 210 is made of an insulating material, and is preferably made of a flexible insulating material from the standpoint of superiority in cable routing. For example, cover member 210 may be formed from polymers such as polyvinyl chloride (PVC), polypropylene, fluoropolymers, polyethylene and/or the like.

3 schematically illustrates an exploded perspective view of an electrical connector unit 1000 according to an embodiment of the present disclosure. The connector primarily comprises an enclosure housing 110 and a connector shield 120 provided within the enclosure housing 110 . Additionally, the connector of the present disclosure may further comprise an inner housing 130 containing terminals for electrical connection with the inner cable. In the connector of the present disclosure, enclosure housing 110 is the housing that defines the exterior of the connector, and inner housing 130 is disposed within enclosure housing 110 . Enclosure housing 110 and inner housing 130 may therefore also be referred to as an outer housing and an inner housing, respectively, due to their relative placement.

Enclosure housing 110 is an insulating member having a substantially box-like shape, and may have an opening area 112 on the device connector 300 side. At least one side surface of the housing 110 may be formed with an insertion opening 111 through which the cable 200 can pass. In the electrical connector unit 1000 of the present disclosure, the cable 200 combined with the connector 100 extends outside from the casing housing 110 through the insertion opening 111 (see FIG. 1). The insertion opening 111 may have a cylindrical shape protruding toward the outside of the housing 110 . A screw cap 170 may be threaded on the outer periphery of the insertion opening 111 , and the gap between the insertion opening 111 and the cable 200 may be sealed by tightening the screw cap 170 . Furthermore, a sealing material 150 and/or a clamp 160 may be used between the screw cap 170 and the tubular protrusion 312 to more reliably seal the water between the insertion opening 111 and the cable 200 . One end of the cable 200 inserted through the enclosure housing 110 is housed inside the enclosure housing 110 . An internal cable bundle of a predetermined length extends from the end of the cable 200 toward the opening area 112 of the housing housing 110, and the distal end of the internal cable bundle is electrically connected to a terminal (not shown). That is, the cable 200 inserted from the side of the enclosure housing 110 has an internal cable bundle of a predetermined length extending downward from the end of the cable 200 .

Although not shown, terminals connected to an internal cable bundle that passes through enclosure housing 110 may be housed in internal housing 130 . The inner housing 130 may be formed from an insulating material (eg, resin, etc.) and configured to mate with the conductive housing 310 of the device connector 300 described below. Additionally, the inner housing 130 is configured to support terminals connected to the inner cable. Each of the terminals in inner housing 130 is electrically connected to each of the terminals provided on device connector 300 when device connector 300 is assembled with the connector.

In one embodiment of the present disclosure, device connector 300 is a connector provided on a device. The device connector of the present disclosure can be applied to various electronic devices, such as devices such as motors used in industrial machinery or industrial robots. As shown in FIG. 3, the device connector 300 comprises as main components a conductive housing 310 and an insulating housing 320 installed within the conductive housing 310 . Conductive housing 310 has a base 311 that sits on the surface of a device housing (not shown) and a tubular protrusion 312 that is configured to mate with open area 112 of housing housing 110 . Also, the device connector 300 of the present disclosure is configured such that the conductive housing 310 is grounded. For example, the base 311 of the conductive housing 310 may be placed in electrical contact with a surface of the device housing to provide grounding. Further, the cylindrical protruding portion 312 is formed to protrude upward from the base portion 311 . The combination of the open area 112 of the enclosure housing 110 and the tubular protrusion 312 electrically connects the terminal at the tip of the internal cable and the terminal housed in the insulating housing 320 to each other. More specifically, connector 100 is attached to device connector 300 by combining enclosure housing 110 and conductive housing 310 such that open area 112 of enclosure housing 110 surrounds tubular protrusion 312 . .

In the present disclosure, the conductive housing is formed from a conductive material. Although not particularly limited, the conductive housing may be made of a metal such as aluminum or an aluminum alloy, or a resin having a conductive plated surface. In particular, considering excellent productivity and dimensional accuracy, the conductive housing of the present disclosure is preferably formed by die-casting such as aluminum die-casting.

Also, in one embodiment of the present disclosure, the device connector 300 may have packing for water tightness. A packing may be provided, for example, on the outer circumference of the tubular protrusion 312 that is combined with the connector 100 and/or at the joint between the base 311 and the device. This fills any gaps that may occur at the connector 100, device connector 300, and device mating points and allows electrical elements such as internal cables and terminals to be adequately waterproofed.

Also, in one embodiment of the present disclosure, a locking lever 140 may be used to maintain assembly between the connector and device connector 300 . As shown in FIG. 3 , the lock lever 140 has a substantially U-shape and may be configured to be combined with the side face of the housing 110 in the direction facing the insertion opening 111 . The lock lever 140 has arm portions 141 at both ends, and a locking portion 142 at the end of each arm portion 141 . The housing housing 110 has latched portions configured to receive the latching portions 142 of the lock lever 140 on each of the side surfaces that join the ends of the lock lever 140 . The conductive housing 310 of the device connector 300 may also have a pair of protrusions 313 projecting upwardly from the base 311 and configured to engage the arms 141 of the locking lever 140 . . A hook portion 313 a projecting toward the cylindrical projecting portion 312 may be provided at the tip of each projecting portion 313 . When the connector and the device connector 300 are assembled, the arm portion 141 of the lock lever 140 is inserted between the projecting portion 313 and the tubular projecting portion 312 of the conductive housing 310 and hooked. The portion 313 a is hooked on the arm portion 141 . Further, the locking portion 142 of the arm portion 141 is engaged with the locked portion of the housing housing 110 to lock the connector 100 and the device connector 300 in a fitted state.

In the present disclosure, insulative members such as enclosure housing 110, inner housing 130, insulative housing 320, locking lever 140, etc. may be formed from an insulative, non-conductive material. These insulating members may include a resin material having insulating properties. Although not particularly limited, such an insulating member may include at least one thermosetting resin selected from the group consisting of epoxy resins, phenolic resins, silicone resins, and unsaturated polyester resins, for example. Also, the members different from each other may contain different resin materials.

The electrical connector unit of the present disclosure is characterized by a shield structure for electrically shielding a cable and terminals connected to the cable. In particular, the electrical connector unit of the present disclosure is characterized by the configuration of the shield that does not directly involve the covering member of the cable. The shield structure in the electrical connector unit of the present disclosure will be described below.

In one embodiment of the electrical connector unit 1000 of the present disclosure, the connector shield 120 is installed to act as a shielding element for the terminals connected to the ends of the internal cables. Additionally, connector shield 120 may be used to provide shielding for the internal cable extending from the end of cable 200 and the terminals connected to the tip thereof. In one embodiment, connector shield 120 may be formed to cover over the internal cable and terminals extending from the end of cable 200 .

Also, in one embodiment of the present disclosure, the connector shield 120 may be attached to an inner housing 130 that contains terminals that are connected to the ends of the internal cables. More specifically, connector shield 120 may be placed on the top surface of inner housing 130 to cover internal cables connected to terminals within inner housing 130 (see FIG. 7A). A protrusion 131 for fixing the connector shield 120 may be formed on the outer side surface of the inner housing 130 . Additionally, the connector shield may be configured to hook onto such protrusions 131 . As shown, the connector shield bends and extends downward along the side surface of the internal connector, and has an engaging portion 124 at its tip that engages with the protrusion 131 . With this structure, the connector shield 120 is held on the protrusion 131 of the inner housing 130, so that a space can be formed between the connector shield 120 and the upper surface of the inner housing 130 for the internal cable to pass through.

FIG. 4 is a perspective view schematically showing a state in which the connector shield 120 and the linear cable 221 are connected to each other in the electrical connector unit of the present disclosure. As shown, in cable 200 of the present disclosure, cable shield 220 comprises linear shield 221 extending from cable shield 220 toward connector 100 . The linear shield 221 may extend outward from one end of the cable 200 , and at least a portion of the linear shield 221 may be exposed to the outside of the insulating covering member 210 . In one embodiment, a linear shield that is part of the cable shield 220 and extends from the cable shield may be attached to the connector shield. That is, a linear shield 221 extending from the end of cable 200 is attached to connector shield 120 within enclosure housing 110 . That is, in the electrical connector unit 1000 of the present disclosure, the cable shield 220 is connected to the connector shield 120 by the linear shield 221 extending outside the covering member 210 toward the connector unit. The structure described above may allow the connection between cable shield 220 and connector shield 120 to be performed without directly affecting the outer diameter of cable 200 . Therefore, the occurrence of poor connection due to changes in the outer diameter of the cable can be more preferably prevented. Furthermore, the structure described above provides electrical continuity between the cable connector and the connector shield 120 without the use of another member, such as a copper foil or a crimp terminal, interposed between the cable connector and the connector shield 120. becomes possible. Therefore, in the electrical connector unit of the present disclosure, a more suitable electromagnetic shield configuration can be achieved that does not require additional connecting members for connecting the shield elements in the cable and connector.

Further, in an electrical connector unit according to an embodiment of the present disclosure, linear shield 221 may be formed to bridge cable shield 220 and connector shield 120 . In other words, the linear shield 221 is not positioned on the surface of the covering member 210 and may bridge between the ends of the cable shield 220 and the connector shield 120 . More specifically, the linear shield 221 provides electrical continuity between the cable shield 220 and the connector shield 120 without being positioned on the outer surface of the covering member 210 . This means that in the electrical connector unit of the present disclosure, by using the linear shield 221, connection between the cable shield 220 and the connector shield 120, which is not directly related to the outer diameter of the cable, can be achieved. do. Therefore, the electrical connector unit of the present disclosure realizes a more suitable electromagnetic shield configuration that is not affected by changes in the outer diameter of the cable.

As can be seen from the above description, "line shield" in the present disclosure means an elongated shield member extending from the end of cable shield 220 . Accordingly, the linear shields of the present disclosure may correspond to, for example, elongated shield members or strip linear shield members. In addition, the “linear shape” in the present disclosure is not limited to a linear shape but may have a curved shape in a plan view, and the thickness thereof may not necessarily be constant. Furthermore, the linear shield is not limited to a single wire, and may be configured by a bundle, twisted wire, braided wire, twisted wire, or the like, composed of a plurality of shield elements. Further, in the present disclosure, the linear shield does not necessarily need to be coated with an insulating material (for example, a resin member such as polyvinyl chloride or polyethylene).

In the electrical connector unit of the present disclosure, cable shield 220 is formed from a conductive material to electrically shield the internal cable bundle. The conductive material used for the cable shield 220 is preferably a flexible conductive material because of its superiority in wiring to equipment arranged in a narrow space. In particular, the cable shield 220 according to one embodiment of the present disclosure is preferably a braid formed from a plurality of conductive strands or strands, such as fibers, that are highly durable and flexible. Although not particularly limited, the braids used in the cable shields of the present disclosure may be formed of highly conductive materials such as copper, copper alloys, aluminum, aluminum alloys, and the like. In addition, a conductive plating layer such as tin plating, nickel plating, or silver plating may be formed on the surface of the material in order to prevent oxidation and rust.

If the cable shield 220 is a braid, the linear shield 221 may be constructed by bundling the ends of conductive strands or fibers that form the braid. In other words, the linear shield 221 may be a strand formed by twisting at least a portion of the braided conductive strands at the ends of the cable shield 220 . That is, a linear shield can be formed by loosening the conductive strands forming the braid, taking out a portion of the strands, and gathering them together. Alternatively, the cable shield 220 may be configured such that some of the conductive strands that make up the braid extend out, with such partial conductive strands leading out of the ends of the cable 200. A linear shield 221 may be provided by . Furthermore, the linear shield 221 may be composed of a non-stranded wire that is at least a portion of a braided conductive strand. As noted above, using a braid as the cable shield 220 may allow a linear shield to be formed more easily. Furthermore, since the linear shield 221 has a form that extends further outward from the braid that is the cable shield 220 within the covering member 210, the connection with the connector shield 120 is positioned directly on the outer circumference of the cable. is not used and does not contribute to the outer diameter of the cable. Therefore, the electrical connector unit of the present disclosure may be able to form a more suitable electromagnetic shield that is not affected by changes in the outer diameter of the cable.

As can be seen from the above description, the linear shield 221 of the present disclosure can be configured such that at least a portion of the cable shield 220 extends from the end of the cable 200 and is interconnected with the connector shield 120 . Accordingly, in the present disclosure, cable shield 220 and line shield 221 may be integrally constructed. This means that linear shield 221 may be constructed from at least a portion of cable shield 220 rather than being constructed separately from cable shield 220 . From this point of view, the cable used in the present disclosure can also be regarded as a non-drain member type cable in which a drain member separate from the cable shield is not provided. As described above, in the electrical connector unit of the present disclosure, a more suitable electromagnetic shield configuration can be achieved that does not necessarily require an additional member when connecting the cable shield and the connector shield.

In addition, the connector shield 120 used in the electrical connector unit of the present disclosure may be made of a conductive material such as metal or soft magnetic material, or a material having a conductive surface by plating or the like. Without limitation, the connector shield 120 may be formed from a conductive sheet-like member, such as by stamping and/or bending a sheet metal.

FIG. 5A schematically shows a state before connection of the connector shield 120 and the linear cable of the electrical connector unit according to one embodiment of the present disclosure. Also, FIG. 5B is a perspective view schematically showing a state in which the connector shield 120 of the electrical connector unit and the linear cable 221 are connected to each other. Furthermore, FIG. 6 schematically shows the configuration of an electromagnetic shield when a braid is used as the cable shield 220. As shown in FIG. As shown in FIG. 5A, the connector shield 120 may have a shield arm 121 that protrudes in the insertion direction of the cable 200 . Further, as shown in FIGS. 5B and 6, in one embodiment of the present disclosure, linear shield 221 may be attached to shield arms 121 that protrude from connector shield 120 . That is, shield arm 121 extends toward the end of cable 200 inserted into enclosure housing 110 and is connected to linear shield 221 . This means that shield arm 121 and linear shield 221 can bridge between cable shield 220 and connector shield 120 . Formation of the shield arm 121 allows the linear shield 221 to be further shortened. Therefore, this structure can further improve the durability of the linear shield, making it possible to form a more suitable electromagnetic shield.

Also, as shown in FIGS. 5A and 6, the connector shield 120 used in the electrical connector unit according to one embodiment of the present disclosure may have a barrel portion 122. As shown in FIG. In this embodiment, linear shield 221 may be crimped at barrel portion 122 . More specifically, the conductive barrel portion 122 formed at the connection portion of the connector shield 120 with the linear shield 221 includes a plate portion 122a and a pair of crimping pieces formed to sandwich the plate portion 122a. 122b integrally. The linear shield 221 is overlapped with the plate portion 122a so as to be accommodated between the pair of crimping pieces 122b. Then, by applying pressure to the outer circumference of the barrel portion 122, the crimping piece 122b is bent so as to wrap the linear shield 221 and crimped. As a result, the linear shield 221 is crimped and connected to the plate portion 122a, and electrical continuity between the connector shield 120 and the cable shield 220 is ensured. Since the above-described structure enables connection between the linear shield 221 and the connector shield 120 by a simple operation of crimping, work efficiency can be improved in manufacturing the electrical connector unit. Furthermore, by using the barrel portion 122, the linear shield 221 is crimped so that the outer periphery is covered with the conductive member, and a more suitable electromagnetic shield that can connect the cable shield 220 and the connector shield 120 more reliably. A shield may be constructed.

Further, in one embodiment of the present disclosure, barrel portion 122 may be provided at the end of shield arm 121 . More specifically, as shown in FIG. 5A, the shield arm 121 has a pair of crimping pieces 122b provided at its ends so as to extend outward in the width direction of the shield arm 121, respectively. can. In this structure, the linear shield 221 is superimposed on the shield arm 121 and crimped by crimping a crimping piece 122b provided at the end of the shield arm 121 to be crimped. It should be noted that the connection between the linear shield 221 and the shield arm 121 can be made either on the upper surface or the lower surface of the shield arm 121 . However, from the viewpoint of space saving of the connector, it is more preferable to connect on the lower surface of the shield arm 121 . In such a structure, the barrel portion 122 may be of an open barrel type provided so that the crimping piece 122b faces obliquely downward. However, the barrel portion does not necessarily have to be of the open barrel type, and a closed barrel type barrel portion may be provided.

Furthermore, in the electrical connector unit of the present disclosure, the connection mode between connector shield 120, shield arm 121 or barrel portion 122 and linear shield 221 is not limited to crimping. For connection, other fixing methods that ensure continuity may be used, such as soldering, welding, or a combination of fixing methods.

7A and 7B are perspective views schematically showing configurations of electromagnetic shields before (FIG. 7A) and after (FIG. 7B) mating between a connector and a device connector 300 according to an embodiment of the present disclosure. is. In one embodiment of the present disclosure, connector shield 120 is electrically connected to conductive housing 310 of device connector 300 when the connector is mated with device connector 300 . That is, when the connector and device connector 300 are assembled, the connector shield 120 is formed into contact with the conductive housing 310 to provide electrical continuity. Additionally, as previously mentioned, the conductive housing 310 is configured to electrically connect to and ground the device. Therefore, by electrically connecting the connector shield 120 and the conductive housing 310, the connector shield 120 is grounded. Therefore, the operation of mating the connector and the device connector establishes electrical continuity between the connector shield 120 and the conductive housing 310, ensuring shielding of the terminals within the connector. For example, connector shield 120 may be configured to contact tubular protrusion 312 of conductive housing 310 in the mated state. With this structure, it is possible to realize a more suitable electromagnetic shield configuration that allows the shield to be configured more easily by fitting the electrical connector unit and the device connector.

Additionally, as shown in FIG. 7A, connector shield 120 may further comprise a leaf spring portion 123 . The leaf spring portion 123 may be configured to contact the conductive housing 310 when the connector and the device connector 300 are combined. More specifically, the connector shield 120 may have a downwardly bent leaf spring as shown. Leaf spring portion 123 may be configured to be inserted between tubular protrusion 312 of conductive housing 310 and insulating housing 320 when the connector and device connector are mated. The connector shield 120 and the conductive housing 310 are electrically connected to each other by elastic contact of the leaf spring portion 123 with the inner side of the tubular protrusion 312 . As described above, by sandwiching the elastic leaf spring portion 123 between the conductive housing 310 and the insulating housing 320, more reliable connection between the leaf spring portion 123 and the conductive housing 310 becomes possible. An arrangement of electromagnetic shields may be provided.

Further, in the electrical connector unit according to an embodiment of the present disclosure, when assembling the connector and the device connector 300, before the terminals of the connector and the terminals of the device connector 300 are electrically connected, • The shield 120 and the conductive housing 310 may be formed in contact. For example, the tubular protrusion 312 of the conductive housing 310 may be provided with a ridge 312a for communication with the connector shield 120 prior to connection of the terminals. Alternatively, the leaf spring portion 123 of the connector unit may be configured to communicate with the conductive housing 310 prior to connecting the terminals. With this structure, the shield element is grounded before the terminals become conductive, and it may be possible to more preferably suppress the occurrence of electrostatic discharge.

Also, in one embodiment of the present disclosure, connector shield 120 and conductive housing 310 are formed to substantially surround inner housing 130 of the connector in the mated condition of the connector and device connector 300 . good. In other words, by combining the connector and device connector 300 , the terminals within inner housing 130 and insulating housing 320 may be configured to be shielded by connector shield 120 and conductive housing 310 . This means that the terminals of the connector and device connector 300 can be accommodated within the shielded space formed by the connector shield 120 and the conductive housing 310 . With the structure described above, the electrical connector unit of the present disclosure can realize a more suitable electromagnetic shield configuration in the mated state of the connector and the device connector.

Due to the above configuration, the cable shield 220 of the present disclosure conducts through the linear shield 221 and the connector shield 120 when the connector of the present disclosure and the device connector 300 are combined, as shown in FIG. 7B. electrically connected to the electrical housing 310 . That is, in the mated condition of the connector and device connector 300, cable shield 220, connector shield 120, and conductive housing 310 are electrically conductive with each other. This means that the shielding elements provided in the connectors, cables and device connectors of the present disclosure can be properly grounded through the conductive housing in the mated state. Therefore, the electrical connector unit of the present disclosure can provide a more suitable electromagnetic shielding configuration that can adequately shield the terminals in the cable and the connector due to the structure described above.

Also, in one embodiment of the present disclosure, the device connector may be a motor-side connector provided on the motor device. For example, the electrical connector unit of the present disclosure may be applied to motor devices such as industrial machines or industrial robots. In one embodiment of the present disclosure, the electrical connector unit applied to such a motor device includes an internal cable for supplying a power supply voltage to drive or brake the device, and a device such as a sensor mounted on the device. It may be a combined power and signal electrical connector unit with internal cables for delivering signals.

In such a power/signal composite electrical connector unit, the terminals for transmitting the signal and the terminals for supplying the power voltage may be arranged side by side, and there is mutual interference between the terminals when the device operates. can. As such, mutual interference can be reduced or eliminated by appropriately partitioning the internal cable bundles between and connected to the terminals using the electromagnetic shield configuration described above in the electrical connector unit of the present disclosure. That is, the electromagnetic shielding arrangement of the present disclosure may be provided to electrically shield each of, for example, an internal cable bundle and terminals for power and an internal cable bundle and terminals for signals (see FIG. 7B). Electromagnetic shielding arrangements may also be provided to electrically shield internal cable bundles and terminals for either power or signals, e.g. electromagnetic shielding only for terminals and internal cable bundles for signal delivery. may apply. In the electrical connector unit according to an embodiment of the present disclosure, each of the internal power cable bundle and the internal signal cable bundle constitutes the cable 200 provided with the cable shield 220 and the covering member 210, and the enclosure housing It may be inserted separately from two insertion openings 111 provided in 110 (see FIG. 1). Further, in a further embodiment, a composite cable may be formed by bundling the power supply cable and the signal cable, and the composite cable may be inserted through the housing housing 110 .

Although the embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications based on the knowledge of those skilled in the art, such as combining the above configurations, as long as they do not deviate from the spirit of the claims. can be changed.

An electrical connector unit having an electromagnetic shield configuration of the present disclosure can be suitably used in various technical fields requiring electrical connections.

1000 Electrical Connector Unit 100 Connector 110 Enclosure Housing 111 Insertion Port 112 Opening Area 120 Connector Shield 121 Shield Arm 122 Barrel Part 122a Plate Part 122b Crimping Piece 123 Leaf Spring Part 124 Engagement Part 130 Internal Housing 131 Protrusion 140 Lock/Lock Lever 141 Arm 142 Lock 150 Seal 160 Clamp 170 Screw Cap 200 Cable 210 Covering Member 220 Cable Shield 221 Linear Shield 230 Internal Cable 231 Conductor 232 Internal Cable Coating 240 Internal Cable Bundle 300 Device Connector 310 Conductive Housing 311 Base 312 Cylindrical Projection 312a Projection 313 Projection 313a Hook 400 Insulating Housing

Claims (11)

An electrical connector unit comprising a connector and a cable connected to the connector,
wherein the cable comprises an inner cable bundle composed of a plurality of inner cables, a cable shield, and an insulating covering member surrounding the inner cable bundle and the cable shield;
the connector comprising an enclosure housing and a connector shield provided within the enclosure housing;
An electrical connector unit, wherein a linear shield that is part of and extends from the cable shield is attached to the connector shield. 2. The electrical connector unit of claim 1, wherein said cable shield is a braid and said linear shield is constructed by bundling ends of conductive strands or fibers comprising said braid. 3. The electrical connector unit of claim 1 or 2, wherein the linear shield is not positioned on the surface of the covering member and bridges between the ends of the cable shield and the connector shield. The electrical connector unit according to any one of claims 1 to 3, wherein said linear shield is attached to a shield arm projecting from said connector shield. The electrical connector unit according to any one of claims 1 to 4, wherein the connector shield has a barrel portion to which the linear shield is crimped. further comprising a device connector provided on the device;
The electrical connector unit according to any one of claims 1 to 5, wherein the connector shield is electrically connected to the conductive housing of the device connector when the connector and the device connector are mated together. . 7. The electrical connector unit according to claim 6, wherein in said assembled state said cable shield, said connector shield and said conductive housing are electrically connected to each other via said linear shield. 8. The electrical connector unit of claim 6 or 7, wherein the connector shield comprises a leaf spring portion, and in the assembled condition the leaf spring portion abuts the conductive housing. The electrical connector unit according to any one of claims 6 to 8, wherein said device connector is a motor-side connector provided on a motor device. the connector further comprising an inner housing provided within the enclosure housing and having terminals electrically connected to the cable;
An electrical connector unit as claimed in any preceding claim, wherein the connector shield is attached to the inner housing. said device connector further comprising an insulating housing within said conductive housing;
The electrical connector unit of any of claims 6-9, wherein the inner housing and the insulating housing are surrounded by the conductive housing and the connector shield.

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