WO2014020780A1 - コネクタおよび建設機械 - Google Patents
コネクタおよび建設機械 Download PDFInfo
- Publication number
- WO2014020780A1 WO2014020780A1 PCT/JP2012/078354 JP2012078354W WO2014020780A1 WO 2014020780 A1 WO2014020780 A1 WO 2014020780A1 JP 2012078354 W JP2012078354 W JP 2012078354W WO 2014020780 A1 WO2014020780 A1 WO 2014020780A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- cable
- cover plate
- side socket
- connector
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 19
- 239000004020 conductor Substances 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 238000009413 insulation Methods 0.000 abstract description 8
- 229920003002 synthetic resin Polymers 0.000 description 8
- 239000000057 synthetic resin Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2075—Control of propulsion units of the hybrid type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
- H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
- H01R13/74—Means for mounting coupling parts in openings of a panel
- H01R13/748—Means for mounting coupling parts in openings of a panel using one or more screws
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2105/00—Three poles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- the present invention relates to a connector and a construction machine, and for example, relates to an improvement in a power cable connector used in a hybrid construction machine.
- the generator motor and the hydraulic pump are driven by the engine, and the electric swing motor for rotating the upper swing body is driven by the electric power generated by the generator motor, and the working machine is driven by the pressure oil from the hydraulic pump.
- a hybrid construction machine configured to drive a hydraulic actuator or a hydraulic motor of a traveling body is known.
- the mounted electrical devices are electrically connected by a power cable (for example, Patent Document 1).
- FIG. 6 shows a connector 200 used for connection between the power cable 10 and those electric devices.
- the connector 200 includes a device-side socket 21 attached to the electric device side and a cable-side plug 220 attached to the power cable 10.
- the connector 200 is provided with a detection switch 30 for determining the fitting state of the device-side socket 21 and the cable-side plug 220 (FIG. 6 shows a non-fitting state).
- the detection switch 30 includes a pair of contact terminals 31 and 31 provided in the device-side socket 21 and a contact conductor 221 provided in the cable-side plug 220.
- the contact terminals 31 and 31 are in contact with the contact surface 221A on the back side of the contact conductor 221 in the drawing, and the electrical contact is made via this contact surface 221A.
- Conductive Based on the conduction state of the contact terminals 31, 31 at the detection switch 30, it is possible to confirm the fitting state of the connector 200.
- the contact conductor 221 is attached to the cover plate 223 via the insulating plate 222, and the cover plate 223 is attached to the plug housing 224.
- the cover plate 223 and the plug housing 224 have conductivity, and the plug housing 224 is electrically grounded by fitting with the device side socket 21. Therefore, since the contact conductor 221 is only insulated by the insulating plate 222 in this state, the insulation distance cannot be obtained, and depending on the situation, the contact conductor 221 is short-circuited to the plug housing 224 via the cover plate 223. End up. Therefore, conventionally, the cover plate 223 and the contact conductor 221 (excluding the contact surface 221A) are covered with the insulating coatings 225 and 226 to improve the insulating performance.
- the contact conductor 221 and the cover plate 223 are separate members, and the contact conductor 221 is fixed to the cover plate 223 by screws 227. Therefore, it is necessary to surely prevent the contact conductor 221 from being connected to the cover plate 223 through the screw 227, and the work of assembling work takes time, such as a complicated insulation structure and an increased number of parts. End up.
- the contact conductor 221 is fastened together with the cover plate 223 to the plug housing 224 with a screw 227.
- the insulation coating 226 may be missing on the back surface of the contact conductor 221 due to the tightening of the screw 227.
- the contact conductor 221 and the screw 227 are electrically connected via the conductive component deposited from that portion. To do.
- the contact conductor 221 may be short-circuited to the plug housing 224 via the screw 227, which may cause erroneous detection by the detection switch 30.
- An object of the present invention is to provide a connector capable of facilitating assembly work and reliably preventing erroneous detection by a detection switch, and a construction machine including the connector.
- a connector is a connector for connecting a power cable for power transmission to an electric device mounted on a vehicle.
- the device-side socket attached to the electric device and the device attached to the power cable
- a cable side plug inserted into and removed from the side socket, and a detection switch electrically connected and disconnected by a mechanical contact provided in the device side socket and the cable side plug.
- a contact terminal as a mechanical contact of the switch is provided, and the cable side plug is opposed to the device side socket of the plug housing which is electrically grounded by being connected to the device side socket.
- a cover plate that covers the opening on the side to be insulated.
- a plate body which includes a contact conductor in contact with the contact terminal as mechanical contact of the detection switch, the plate body and the contact conductor is characterized in that it is integrally molded.
- the contact conductor is embedded in the plate body so as to face the device-side socket, and is bent with respect to the embedded portion, and is connected to the device-side socket.
- the protruding portion protruding from the plate body is provided in an L shape, and the protruding portion is provided with a contact surface with which the contact terminal contacts.
- the cover plate is fixed to the plug housing with a screw, and the insertion hole into which the screw of the cover plate is inserted is made of a metal and cylindrical shape that abuts the head of the screw. The color is arranged.
- a pin contact having conductivity is attached to the tip of the power cable, and an insulating cylinder into which the end of the power cable is inserted into the plug housing.
- a cylindrical holder is provided, and the holder includes a projecting hole in which a cylindrical portion is inserted and held through an opening hole provided in the cover plate, and the pin contact is projected.
- a construction machine is characterized by comprising the connector according to any one of the first to fourth inventions, an electric device and a power cable connected via the connector.
- the contact conductor is integrally formed with the plate body, the number of parts can be reduced and the assembly work of the connector can be facilitated.
- the plate body of the cover plate is made of an insulating material (for example, made of synthetic resin), when the cover plate is fixed to the plug housing with a screw, even if the screw is corroded, the screw and the contact point By separating the conductor, the insulation distance can be reliably secured by the plate body made of an insulating material existing between them, the contact conductor can be prevented from being short-circuited to the plug housing, and erroneous detection can be reliably prevented.
- the contact conductor is provided with a buried portion that is bent with respect to the protruding portion that receives the contact pressure from the contact terminal, and the buried portion is embedded in the plate body, so that a large contact pressure acts.
- the contact conductor falls off the plate body, and the durability as the cover plate and the reliability of the detection switch can be improved.
- the metal collar having a high strength is disposed in the screw insertion hole provided in the cover plate, the head bites into the insulating plate body when the screw is tightened.
- the cover plate can be prevented from being damaged, and the cover plate can be satisfactorily fixed to the plug housing with a larger tightening torque.
- the conductive pin contact protrudes from the insulating holder, and the holder is similarly held by the insulating cover guide.
- the insulation performance of the cable-side plug can be improved.
- FIG. 5 is a sectional view of the component, taken along line VV in FIG. 4. The figure which shows the conventional connector.
- FIG. 1 is a side view showing a hybrid excavator 1 as a construction machine of this embodiment, and FIG. 2 schematically shows a schematic configuration of a power source used in the construction machine.
- a hybrid excavator 1 includes a crawler type lower traveling body 2 and an upper revolving body 3 provided on the upper part so as to be freely rotatable.
- the lower traveling body 2 and a work machine 5 described later are hydraulically driven.
- the upper revolving unit 3 is configured as a hybrid vehicle that is driven by electric energy.
- the upper swing body 3 is provided with a box-shaped cab 4 and a work machine 5 on which an operator gets.
- the work machine 5 includes a boom 5A, an arm 5B, a bucket 5C, and a plurality of hydraulic actuators 5D that drive these.
- the engine 6 is accommodated in the engine room of the upper swing body 3.
- a generator motor 7 and a hydraulic pump 8 as electrical devices are connected in series to the output shaft of the engine 6, and both the generator motor 7 and the hydraulic pump 8 are driven by the engine 6.
- the electric power generated by the generator motor 7 is transmitted to an inverter 11 as an electric device via a power cable 10 for three-phase alternating current.
- One end of another power cable 10 is connected to the inverter 11, and the other end of the power cable 10 is connected to an electric swing motor 12 as an electric device for driving the upper swing body 3.
- the inverter 11 is connected to a storage capacitor 13.
- the electric power generated by the generator motor 7 is stored in the capacitor 13 through the inverter 11, and is supplied from the capacitor 13 to the electric swing motor 12 through the inverter 11 during the turning operation.
- the pressure oil from the hydraulic pump 8 is supplied to a hydraulic actuator 5D for driving the work machine 5 and a hydraulic motor for driving the lower traveling body 2 via a control valve.
- a hydraulic actuator 5D for driving the work machine 5
- a hydraulic motor for driving the lower traveling body 2 via a control valve.
- FIG. 3 shows a cable-side plug 22 attached to the end of the power cable 10.
- the cable side plug 22 constitutes the connector 20 by a pair with the device side socket 21 shown in FIG.
- the device side socket 21 is the same as the conventional one shown in FIG. 6, and a description thereof is omitted here.
- the cable side plug 22 will be described in detail with respect to differences from the cable side plug 220 shown in FIG. 6, and other configurations will be described in a simplified manner.
- the cable-side plug 22 is provided on the cable insertion side of the plug housing 41 with a conductive plug housing 41 through which the three cables 10A, 10B, and 10C of the power cable 10 are inserted.
- a clamp (not shown) that clamps the cables 10A, 10B, and 10C and a rectangular cover plate 43 that covers the opening of the plug housing 41 on the side facing the device side socket 21 (FIG. 6) are provided.
- the cover plate 43 is fixed to the mounting portion 41A of the plug housing 41 by four screws 44 (only three are shown in FIG. 3).
- an insulating cylindrical holder 45 into which an end of the cable 10 (cables 10A, 10B, 10C) is inserted is provided in the plug housing 41.
- the holder 45 has a cylindrical portion inserted and held in an opening hole 43 ⁇ / b> A (FIG. 4) provided in the cover plate 43, and a not-shown collar portion integrally provided in the cylindrical portion is provided on the cover plate 43. Locked to the back.
- Conductive pin contacts 46 are attached to the ends of the cables 10 ⁇ / b> A, 10 ⁇ / b> B, and 10 ⁇ / b> C inserted into the holder 45, and project from projecting holes 45 ⁇ / b> A provided in the holder 45.
- the contact surface 41B of the plug housing 41 with the electrical device side is provided with a rectangular annular groove 41C so as to surround the mounting portion 41A, and a seal ring 47 is fitted in the groove 41C.
- the contact surface 41B of the plug housing 41 and the area around the insertion / extraction opening on the electric equipment side are fixed.
- the space between the contact surfaces is sealed with a seal ring 47.
- the seal ring 47 in the present embodiment is provided with a convex portion 47A at an appropriate position of a dividing portion that forms each side of the rectangular shape.
- the convex portion 47A is pushed into the groove 41C and elastically deformed, whereby the seal ring 47 is held in the groove 41C and is prevented from falling off the groove 41C.
- the plug housing 41 described above is fixed to the electric device side by a plurality of bolts 48.
- the plug housing 41 is provided with an insertion hole 41D through which the bolt 48 is inserted.
- a rubber locking ring 49 is inserted into the bolt 48 inserted into the insertion hole 41D.
- the locking ring 49 is inserted into the bolt 48 in the insertion hole 41D and locked to prevent the bolt 48 from falling off the plug housing 41 when the cable-side plug 22 is removed from the electrical device. Yes.
- FIG. 4 is an overall perspective view showing the cover plate 43.
- 5 is a cross-sectional view of the cover plate 43, and is a cross-sectional view taken along the line VV of FIG.
- the cover plate 43 includes an insulating synthetic resin plate body 51, a contact conductor 52 that contacts the contact terminals 31 and 31 as mechanical contacts of the detection switch 30 (FIG. 6), It is comprised with the metal-made cylindrical collar 53 arrange
- the plate body 51, the contact conductor 52, and the collar 53 are integrally formed by insert molding. Since the whole plate body 51 has an insulating property, an insulation state between the contact conductor 52 and the plug housing 41 and between the contact conductor 52 and the collar 53 (that is, the screw 44) is ensured.
- the synthetic resin used for the plate body 51 is PBT (polybutylene terephthalate) in the present embodiment, but may be other synthetic resins frequently used in industrial products. Moreover, since the plate main body 51 should just have insulation, the material is not limited to a synthetic resin, For example, a ceramic etc. may be sufficient.
- the metal used for the contact conductor 52 is brass (brass) in the present embodiment, but is not limited thereto, and may be copper, stainless steel, or the like as long as it is a metal having conductivity and corrosion resistance. Good.
- the collar 53 is similarly brass in the present embodiment, but is not particularly required to be electrically conductive, so it has only to have a predetermined strength and corrosion resistance. Further, the contact conductor 52 and the collar 53 may be made to have conductivity and corrosion resistance by surface treatment.
- the plate main body 51 is provided with a large number of recesses 51A except for the periphery of the opening hole 43A and the periphery of the insertion hole 43B in addition to the edge portion along the outer periphery, thereby reducing the amount of resin material while ensuring the necessary strength. Is planned.
- the three opening holes 43 ⁇ / b> A are arranged in a line along the long side of the plate body 51. Two of the four insertion holes 43B are arranged along one long side, and the remaining two are arranged along the other long side. These insertion holes 43 ⁇ / b> B are shifted in the long side direction of the plate main body 51 by the size of approximately one opening hole 43 ⁇ / b> A and are alternately positioned on one long side and the other long side.
- the contact conductor 52 is embedded in the plate main body 51 so as to face the device-side socket 21 (FIG. 6), is bent with respect to the embedded portion 521, and extends from the plate main body 51 to the device-side socket 21. And a projecting portion 522 that projects toward the surface.
- the embedded portion 521 is embedded between a pair of adjacent opening holes 43A.
- the protruding portion 522 protrudes from the center position between the insertion holes 43 ⁇ / b> B on both sides on one long side of the plate body 51.
- arc-shaped notches 523 and 523 are provided corresponding to the shape of the adjacent opening hole 43A. That is, the notches 523 and 523 are provided so that the limited embedded region between the opening holes 43A can be used effectively.
- the upper surface in FIGS. 4 and 5 is a contact surface 524 that reliably contacts both the contact terminals 31 and 31.
- the base end side of the protruding portion 522 is covered with a reinforcing portion 511 protruding from the surface of the plate main body 51, and the protruding portion 522 that receives contact pressure in a cantilever state is reinforced to prevent deformation such as bending. It is like that.
- the collar 53 is disposed in the insertion hole 43 ⁇ / b> B with both axial ends exposed from the front and back surfaces of the plate body 51.
- a flange 531 with which the head of the screw 44 (FIG. 3) abuts is provided at one end of the collar 53 in the axial direction.
- the screw 44 is inserted into the collar 53 in the insertion hole 43B, so that the head portion of the screw 44 comes into contact with the flange 531 of the metal collar 53 having high strength. Even if it tightens with torque, there is no fear of damaging the plate body 51, and the tightening torque can be reliably applied to the collar 53, so that the cover plate 43 can be attached to the plug housing 41 in a favorable state.
- the contact conductor 52 and the collar 53 are formed by integral molding with the plate body 51, the number of parts can be reduced, and the assembly work of the cable side plug 22 and thus the connector can be reduced. 20 assembly operations can be facilitated.
- the entire plate body 51 is made of an insulating synthetic resin, there is no electrical conduction path not only on the surface of the plate body 51 but also internally. For this reason, even if water droplets enter the collar 53 through the screw 44 and the screw 44 or the collar 53 is corroded by the water droplet, the screw 44 or the collar 53 and the contact conductor 52 are separated from each other to exist. Insulating distance can be ensured with the plate body 51 made of synthetic resin, the contact conductor 52 can be prevented from being short-circuited to the plug housing 41, and erroneous detection by the detection switch 30 can be reliably prevented.
- the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
- a hybrid excavator has been described as an example of the construction machine of the present invention.
- the construction machine is not limited thereto, but a hybrid type wheel loader, bulldozer, motor grader, dump truck Etc.
- the present invention may be applied not only to hybrid type construction machines but also to electric construction machines.
- the vehicle on which the connector of the present invention is mounted is not limited to a construction machine, and may be a hybrid type automobile, an agricultural vehicle such as a transport truck, or a tractor.
- a vehicle is not limited to a hybrid type but may be an electric type.
- the power cable 100 is for three-phase AC, but the present invention can be applied even to a single-phase DC power cable.
- the collar 53 is also integrally formed with the plate body 51 like the contact conductor 52, but the collar is not limited thereto. That is, the collar may be attached by press-fitting or bonding into the insertion hole of the molded plate body.
- the present invention can be used not only for hybrid type construction machines but also for all hybrid type vehicles.
- SYMBOLS 1 Hybrid excavator which is a construction machine as a hybrid vehicle, 7 ... Generator motor which is electrical equipment, 10 ... Power cable, 11 ... Inverter which is electrical equipment, 12 ... Electric turning motor which is electrical equipment, 20 ... Connector, 21 ... Equipment side socket, 22 ... Cable side plug, 30 ... Detection switch, 31 ... Contact terminal, 41 ... Plug housing, 43 ... Cover plate, 43A ... Opening hole, 43B ... Insertion hole, 44 ... Screw, 45 ... Holder, 45A ... projecting hole, 51 ... plate body, 52 ... contact conductor, 53 ... collar, 521 ... buried part, 522 ... projecting part, 524 ... contact surface.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
このようなハイブリッド建設機械では、発電電動機とインバータとの間、および電動旋回モータとインバータとの間のように、搭載される電気機器間がパワーケーブルにて電気的に接続されている(例えば、特許文献1参照)。図6には、パワーケーブル10とそれらの電気機器との接続に用いられるコネクタ200が示されている。
また、カバープレートのプレート本体が絶縁性を有した材質(例えば、合成樹脂製)であるから、カバープレートをスクリューによりプラグハウジングに固定する場合で、万が一スクリューに腐蝕が生じても、スクリューと接点導体とを離間させることで、その間に存在する絶縁材質のプレート本体にて確実に絶縁距離を確保でき、接点導体がプラグハウジングに短絡するのを防止できて、誤検出を確実に防止できる。
図1は、本実施形態の建設機械としてのハイブリッドショベル1を示す側面図であり、図2では、その建設機械に用いられる動力源の概略構成が模式的に示されている。
図1において、ハイブリッドショベル1は、クローラ式の下部走行体2と、この上部に旋回自在に設けられた上部旋回体3とを備え、下部走行体2および後述の作業機5を油圧で駆動し、上部旋回体3を電気エネルギにて駆動するハイブリッド車両として構成される。
また、接点導体52に用いられる金属としては、本実施形態では真鍮(黄銅)であるが、これに限らず、銅やステンレス等であってもよく、導電性および耐蝕性を有する金属であればよい。カラー53については、本実施形態では同様に真鍮であるが、特に導電性を要求されないため、所定の強度と耐食性を有していればよい。また、接点導体52、カラー53として、表面処理によって導電性や耐蝕性が得られるようにしたものであってもよい。
埋設部521は、隣接し合う一対の開口孔43A間に埋設されている。突出部522は、プレート本体51の一方の長辺側において、両側の挿通孔43B間の中央位置から突出している。埋設部521を有することにより、プレート本体51での接点導体52の保持強度を大きくし、接点端子31との接触により大きな接圧(約600N)が作用しても、プレート本体51から接点導体52が外れる心配はない。
突出部522では、図4、図5中の上側の面が接点端子31,31の両方に確実に跨って接触する接触面524になっている。突出部522の基端側は、プレート本体51の表面から突起した補強部511にて覆われており、片持ち状態で接圧を受ける突出部522を補強し、湾曲する等の変形が生じないようになっている。
例えば、前記実施形態では、本発明の建設機械として、ハイブリッドショベルを例に挙げて説明したが、建設機械としてはそれに限定されるものではなく、ハイブリッドタイプのホイールローダ、ブルドーザ、モータグレーダ、ダンプトラック等であってもよい。さらに、ハイブリッドタイプの建設機械に限らず、電動式の建設機械に本発明を適用してもよい。
Claims (5)
- 車両に搭載された電気機器に電力送電用のパワーケーブルを接続するためのコネクタにおいて、
前記電気機器に取り付けられる機器側ソケットと、
前記パワーケーブルに取り付けられて前記機器側ソケットに対して挿抜されるケーブル側プラグと、
前記機器側ソケットおよび前記ケーブル側プラグに設けられた機械式接点により電気的に断続する検出スイッチとを備え、
前記機器側ソケットには、前記検出スイッチの機械式接点としての接点端子が設けられ、
前記ケーブル側プラグには、前記機器側ソケットに接続されることにより電気的に接地されるプラグハウジングと、前記プラグハウジングの前記機器側ソケットに対向する側の開口を覆うカバープレートとが設けられ、
前記カバープレートは、絶縁性を有するプレート本体と、前記検出スイッチの機械式接点として前記接点端子と接触する接点導体とを備え、
前記プレート本体および前記接点導体が一体成形されている
ことを特徴とするコネクタ。 - 請求項1に記載のコネクタにおいて、
前記接点導体は、前記機器側ソケットに対向するように前記プレート本体内に埋設された埋設部と、前記埋設部に対して折曲し、かつ前記機器側ソケットに向けて前記プレート本体から突出した突出部とでL字形状に設けられ、
前記突出部には、前記接点端子が接触する接触面が設けられている
ことを特徴とするコネクタ。 - 請求項1または請求項2に記載のコネクタにおいて、
前記カバープレートは、前記プラグハウジングにスクリューによって固定され、
前記カバープレートの前記スクリューが挿通される挿通孔には、前記スクリューの頭部が当接する金属製で筒状のカラーが配置されている
ことを特徴とするコネクタ。 - 請求項1ないし請求項3のいずれかに記載のコネクタにおいて、
前記パワーケーブルの先端には、導電性を有したピンコンタクトが取り付けられ、
前記プラグハウジング内には、前記パワーケーブルの端部が挿入される絶縁性を有した筒状のホルダが設けられ、
前記ホルダは、円筒状部分が前記カバープレートに設けられた開口孔に挿通されて保持されているとともに、前記ピンコンタクトが突設される突設孔を備える
ことを特徴とするコネクタ。 - 請求項1ないし請求項4のいずれかに記載のコネクタと、
前記コネクタを介して接続される電気機器およびパワーケーブルとを備えている
ことを特徴とする建設機械。
Priority Applications (4)
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DE112012006748.7T DE112012006748T5 (de) | 2012-07-30 | 2012-11-01 | Steckverbindung und Baumaschine |
KR1020137001906A KR101366631B1 (ko) | 2012-07-30 | 2012-11-01 | 커넥터 및 건설 기계 |
US13/813,601 US8876542B2 (en) | 2012-07-30 | 2012-11-01 | Connector and construction machine |
CN201280002162.8A CN103733441B (zh) | 2012-07-30 | 2012-11-01 | 连接器及建筑机械 |
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JP2012-168860 | 2012-07-30 | ||
JP2012168860A JP5272100B1 (ja) | 2012-07-30 | 2012-07-30 | コネクタおよび建設機械 |
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WO2014020780A1 true WO2014020780A1 (ja) | 2014-02-06 |
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US (1) | US8876542B2 (ja) |
JP (1) | JP5272100B1 (ja) |
KR (1) | KR101366631B1 (ja) |
CN (1) | CN103733441B (ja) |
DE (1) | DE112012006748T5 (ja) |
WO (1) | WO2014020780A1 (ja) |
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JP5933368B2 (ja) * | 2012-06-26 | 2016-06-08 | 矢崎総業株式会社 | コネクタ |
US9437939B2 (en) * | 2013-09-25 | 2016-09-06 | GM Global Technology Operations LLC | Flow drill screw attached grounding block |
EP3183741A4 (en) * | 2014-08-19 | 2018-05-09 | Intel Corporation | Consumable interface plate for tool install |
JP6527908B2 (ja) * | 2017-05-25 | 2019-06-05 | 矢崎総業株式会社 | コネクタ装置 |
CN108539531A (zh) * | 2018-04-26 | 2018-09-14 | 中测测试科技(杭州)有限公司 | 一种连接特性可视的汽车检测连接器及使用方法 |
JP7139208B2 (ja) * | 2018-09-28 | 2022-09-20 | 株式会社マキタ | 電動作業機 |
CN111129910B (zh) * | 2018-11-01 | 2022-06-24 | 中达电子(江苏)有限公司 | 压缩机驱动器动力端子的制造方法及动力端子 |
US11648894B2 (en) * | 2020-05-29 | 2023-05-16 | Lokar, Inc. | Faux distributor cable holder |
KR102284391B1 (ko) | 2021-03-23 | 2021-08-02 | 윤지영 | 고압 전력용 커넥터 |
KR20230046468A (ko) | 2021-09-30 | 2023-04-06 | 윤지영 | 고전류용 커넥터 |
KR102693891B1 (ko) | 2022-06-13 | 2024-08-13 | 김정호 | 개선된 고압 전력용 커넥터 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5450194U (ja) * | 1977-09-14 | 1979-04-06 | ||
JP2010272254A (ja) * | 2009-05-19 | 2010-12-02 | Komatsu Ltd | コネクタおよび建設機械 |
JP2011100611A (ja) * | 2009-11-05 | 2011-05-19 | Sumitomo Wiring Syst Ltd | 機器用コネクタ |
JP2011108484A (ja) * | 2009-11-17 | 2011-06-02 | Sumitomo Wiring Syst Ltd | 機器用コネクタ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06325832A (ja) * | 1993-05-12 | 1994-11-25 | Sumitomo Wiring Syst Ltd | コネクタ |
US7306479B1 (en) * | 2006-07-05 | 2007-12-11 | Hon Hai Precision Ind. Co., Ltd. | Cable connector assembly with strain relief member |
JP2012099294A (ja) * | 2010-11-01 | 2012-05-24 | Smk Corp | 嵌合検知型コネクタ |
-
2012
- 2012-07-30 JP JP2012168860A patent/JP5272100B1/ja active Active
- 2012-11-01 DE DE112012006748.7T patent/DE112012006748T5/de not_active Withdrawn
- 2012-11-01 US US13/813,601 patent/US8876542B2/en not_active Expired - Fee Related
- 2012-11-01 CN CN201280002162.8A patent/CN103733441B/zh not_active Expired - Fee Related
- 2012-11-01 KR KR1020137001906A patent/KR101366631B1/ko not_active IP Right Cessation
- 2012-11-01 WO PCT/JP2012/078354 patent/WO2014020780A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5450194U (ja) * | 1977-09-14 | 1979-04-06 | ||
JP2010272254A (ja) * | 2009-05-19 | 2010-12-02 | Komatsu Ltd | コネクタおよび建設機械 |
JP2011100611A (ja) * | 2009-11-05 | 2011-05-19 | Sumitomo Wiring Syst Ltd | 機器用コネクタ |
JP2011108484A (ja) * | 2009-11-17 | 2011-06-02 | Sumitomo Wiring Syst Ltd | 機器用コネクタ |
Also Published As
Publication number | Publication date |
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CN103733441A (zh) | 2014-04-16 |
US8876542B2 (en) | 2014-11-04 |
JP5272100B1 (ja) | 2013-08-28 |
KR101366631B1 (ko) | 2014-02-24 |
JP2014026939A (ja) | 2014-02-06 |
CN103733441B (zh) | 2016-02-10 |
DE112012006748T5 (de) | 2015-08-27 |
US20140148026A1 (en) | 2014-05-29 |
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