WO2014073784A1 - Connector and connection device for high voltage power supply having the connectors - Google Patents

Connector and connection device for high voltage power supply having the connectors Download PDF

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Publication number
WO2014073784A1
WO2014073784A1 PCT/KR2013/008508 KR2013008508W WO2014073784A1 WO 2014073784 A1 WO2014073784 A1 WO 2014073784A1 KR 2013008508 W KR2013008508 W KR 2013008508W WO 2014073784 A1 WO2014073784 A1 WO 2014073784A1
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WO
WIPO (PCT)
Prior art keywords
locking
connector
voltage connection
high voltage
preparatory
Prior art date
Application number
PCT/KR2013/008508
Other languages
French (fr)
Inventor
Jeong-Hyeok Choi
Moon-Kyu Jang
Joo-Il HONG
Original Assignee
Ls Cable & System Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ls Cable & System Ltd. filed Critical Ls Cable & System Ltd.
Priority to CN201380058664.7A priority Critical patent/CN104823337B/en
Publication of WO2014073784A1 publication Critical patent/WO2014073784A1/en

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    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6275—Latching arms not integral with the housing
    • 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
    • H01R13/42—Securing in a demountable manner
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap

Definitions

  • the present invention relates to connectors for high voltage power supply, and more particularly, to connectors and a connection device for high voltage power supply having the connectors that are capable of preventing the generation of arcs from high voltage connection terminals if the connectors are separated from each other in the process of the high voltage power supply.
  • connectors constituting a connection device for high voltage power supply have high voltage connection terminals for power supply and low voltage connection terminals for signal transmission for selectively blocking the power supply to the high voltage terminals for power supply, thereby preventing the generation of arcs from the high voltage connection terminals during the separation process of the connectors.
  • the low voltage connection terminals for signal transmission are provided to perform the signal transmission for the supply or blocking of the high voltage power supplied through high voltage power cables.
  • connection device for high voltage power supply is configured wherein first and second connectors corresponding to each other are mounted on each other and in the state where the high voltage connection terminals and the low voltage connection terminals are connected correspondingly to each other, the power supply is performed through the high voltage connection terminals of the first and second connectors.
  • the low voltage connection terminals of the first and second connectors are first separated from each other, and if the low voltage connection state is released through the separation of the low voltage connection terminals, the high voltage power supply to the high voltage connection terminals is then cut off.
  • the high voltage power supply to the high voltage connection terminals is cut off before the physical connection of the high voltage connection terminals is released, thereby preventing the generation of arcs upon the connection release of the high voltage connection terminals.
  • connection states of the low voltage connection terminals are first released, so that the high voltage power supply is cut off and in this state, the high voltage connection terminals are then separated, thereby reducing the possibility of the generation of arcs.
  • connection release method is achieved through the difference between the connection lengths of the connection terminals in the separation process of the connectors. That is, if the connection lengths of the high voltage connection terminals are longer than those of the low voltage connection terminals in the separation process of the coupled connectors, the connection states of the low voltage connection terminals are first released during the separation process, and after a predetermined period of time, the connection states of the high voltage connection terminals are then released. Accordingly, the power supply to the high voltage connection terminals is cut off through the time difference made in the connection release processes of the low and high voltage connection terminals.
  • the time needed for the separation of the connectors is dependent upon the operating speed of each worker. That is, if the separating operation is so rapidly achieved, the high voltage power supply to the high voltage connection terminals may be not cut off before the connection release of the high voltage connection terminals after the connection states of the low voltage connection terminals have been released, which causes the generation of arcs from the high voltage connection terminals.
  • connection states of the low voltage connection terminals and the high voltage connection terminals are released through a physical locking structure, so that when the locking states are released, the connection states of the low and high voltage connection terminals are released.
  • the physical locking structure includes locking protrusions, releasing buttons and the like, but the releasing buttons are easily pressurized by means of a worker’s carelessness or a user who does not have any working ability, thereby making the connectors easily separated from each other and unfortunately causing safety accidents and the deterioration of reliability.
  • the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide connectors and a connection device for high voltage power supply having the connectors that are capable of providing high stability and work efficiency.
  • the above and other objects can be accomplished by the provision of connectors connected to each other to constitute a connection device for high voltage power supply having low voltage connection terminals for signal transmission and high voltage connection terminals for power supply, any one of the connectors comprising low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals and preparatory locking means for selectively blocking the releasing of the low voltage connection locking means, wherein the connection states of the low voltage connection terminals are released earlier than those of the high voltage connection terminals in a separation process of the connectors, and if the connection states of the low voltage connection terminals are released, the power supply to the high voltage connection terminals is cut off.
  • the preparatory locking means, the low voltage connection locking means and the high voltage connection locking means may be provided on a manipulation part mounted on the upper portion of a housing of the first connector.
  • the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state of the second connector by means of the preparatory locking means the low voltage connection locking means and the high voltage connection locking means of the first connector are released one by one, and then, the connectors are separated from each other.
  • the low voltage connection locking means may comprise a first locking protrusion formed downwardly on the housing of the first connector for being locked onto a first trapping protrusion formed on a housing of the second connector onto which the first connector is coupled; and a first releasing button for selectively releasing the locking state of the first locking protrusion, the first locking protrusion and the first releasing button being formed integrally to the upper portion of the housing of the first connector.
  • first locking protrusion locked onto the first trapping protrusion may be lifted up to release the low voltage connection locking state, by the principle of a lever.
  • the housing of the first connector may be drawn by a predetermined distance in the separation direction of the connectors to release the connection states of the low voltage connection terminals.
  • the predetermined distance may be the distance between the first trapping protrusion and a second trapping protrusion for being locked onto the high voltage connection locking means.
  • the high voltage connection locking means may comprise a second locking protrusion formed downwardly on the housing of the first connector for being locked onto the second trapping protrusion formed on the housing of the second connector onto which the first connector is coupled; and a second releasing button for selectively releasing the locking state of the second locking protrusion, the second locking protrusion and the second releasing button being formed integrally to the upper portion of the housing of the first connector.
  • the second locking protrusion locked onto the second trapping protrusion may be lifted up to release the high voltage connection locking state, by the principle of a lever.
  • the preparatory locking means may comprise a preparatory locking member located under the first releasing button for blocking the downward movement of the first releasing button by the pressurization of the first releasing button, in the state where the connectors of the connection device for high voltage power supply are coupled to each other, so that the preparatory locking member is inserted into a position where the downward movement of the first releasing button is prevented or drawn from to a position where the downward movement of the first releasing button is allowed.
  • the preparatory locking member may be slidingly inserted into and drawn from a mounting slot formed on the upper portion of the housing of the first connector.
  • the preparatory locking member may comprise a grasping part formed on the end portion in the drawing direction thereof so as to conduct the inserting or drawing operation of the preparatory locking member and an auxiliary protrusion formed on the underside of the end portion in the inserting direction thereof so as to provide given operating resistance upon the inserting or drawing operation of the preparatory locking member.
  • the auxiliary protrusion may slide over the upper portion of the back surface of the first locking protrusion so as to provide the given operating resistance upon the inserting or drawing operation of the preparatory locking member.
  • the preparatory locking member may comprise a locking part formed steppedly at the center portion thereof to a shape of a vertical partition in the drawing direction thereof; and a locking projection formed on the front end of the pressurized portion of the first releasing button for being locked onto the locking part to prevent the preparatory locking member from being separated from the first connector, thereby preventing the drawing of the first connector over the predetermined distance.
  • the preparatory locking member may comprise a depressed part formed on the rear side of the locking part; and an elevated part formed on the rear side of the depressed part, the elevated part being adapted to block the downward movement of the first releasing button in the inserting state of the preparatory locking member and the depressed part serving as a space wherein the downward movement of the first releasing button is conducted in the drawing state of the preparatory locking member.
  • the first releasing button and the second releasing button may be formed side by side on the manipulation part in a vertical direction to the inserting or drawing direction of the preparatory locking member.
  • the first releasing button and the second releasing button may be formed on the rear end of the manipulation part in the drawing direction of the preparatory locking member.
  • connection device for high voltage power supply comprising a first connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals, and preparatory locking means mounted to be slidingly inserted or drawn for selectively blocking the releasing of the low voltage connection locking means, a second connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, and trapping protrusions for locking first and second locking protrusions of the low voltage connection locking means and the high voltage connection locking means thereonto, wherein the connection states of the low voltage connection terminals of the first connector and the second connector are released earlier than those of the high voltage connection terminals of the first connector and the second connector in a separation process of the first connector and the second connector, and if the connection states of the
  • the trapping protrusions of the second connector may be formed on the surface of a housing of the second connector.
  • the trapping protrusions may comprise a first trapping protrusion for locking the first locking protrusion of the low voltage connection locking means thereonto, and a second trapping protrusion for locking the second locking protrusion of the high voltage connection locking means thereonto, the first trapping protrusion and the second trapping protrusion being protrudedly formed diagonally from the top surface of the housing of the second connector.
  • the second connector may comprise the housing having a flange on which two fastening holes are formed diagonally, and the portion of the flange where the fastening holes are formed has a larger width than the other portion thereof.
  • the connectors and a connection device for high voltage power supply having the connectors can minimize the number of parts and simplify the locking structure.
  • any one of the connectors includes the preparatory locking member, thereby preventing the separation of the connectors by means of a worker’s carelessness or error.
  • any one of the connectors includes the preparatory locking member separately mounted thereon for being not separated completely from the connector, thereby minimizing the loss of the preparatory locking member.
  • the connectors release one by one the preparatory locking state, the low voltage connection locking state, and the high voltage connection locking state, thereby preventing the generation of errors or safety accidents in the separation process of the connectors.
  • FIG.1 is a separated perspective view showing a first connector and a second connector on which the first connector is coupled in a connection device for high voltage power supply according to the present invention.
  • FIGS.2a and 2b are front views showing the first connector and the second connector in the connection device according to the present invention.
  • FIGS.3a and 3b are perspective views showing the releasing process from the preparatory locking state of the first connector in the connection device according to the present invention.
  • FIGS.4a and 4b are perspective views showing the releasing process from the low voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
  • FIG.5 is a perspective view showing the releasing process from the high voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
  • FIGS.6a and 6b show a preparatory locking member of the first connector in the connection device according to the present invention.
  • FIG.7 is a perspective view showing another example of the first connector in the connection device according to the present invention.
  • connection device for high voltage power supply according to preferred embodiments of the present invention will be in detail given with reference to the attached drawings.
  • the explanation on the specific structure and functions are given just to define the preferred embodiments of the present invention, and the preferred embodiments of the present invention may be provided in various manners, which are not limited to the embodiments described below.
  • the same components are indicated by the same reference numerals as each other, and for the brevity of the description, the explanation on their repeated features will be avoided.
  • FIG.1 is a separated perspective view showing a first connector and a second connector on which the first connector is coupled in a connection device for high voltage power according to the present invention.
  • a connection device 1000 for high voltage power supply includes connectors having the corresponding shape to each other.
  • the connectors are designated by a first connector 100 and a second connector 200.
  • the first connector 100 has cable mounting holes 160 to which cables for high voltage power are connected. Further, the second connector 200 detachably connected to the first connector 100 is mounted on an outer wall W of a power supply area or a power demand area.
  • the second connector 200 is fixedly fastened to the outer wall W by means of fastening members b like bolts.
  • the second connector 200 has a housing 210 and a flange 215 formed on the housing 210, and the flange 215 has two fastening holes 215h (See FIG.2b) formed diagonally thereon for being fastened to the fastening members b.
  • the portion of the flange 215 where the fastening holes 215h are formed has a larger width than the other portion thereof.
  • the cables for high voltage power are connected to high voltage connection terminals 130a and 130b for power (See FIG.2a) of the first connector 100 through the cable mounting holes 160 of the first connector 100, and low voltage connection terminals for signal transmission (not shown) are connected to low voltage connection terminals of the second connector 200 to which cables for signal transmission are connected, without any connection through separate cables.
  • the first connector 100 of the connection device 1000 for high voltage power supply has a housing 110 with a manipulation part 120 formed on the top portion thereof.
  • the manipulation part 120 has first and second releasing buttons 400 and 500 and the like adapted to safely and sequentially separate the first connector 100 from the second connector 200.
  • the first and second releasing buttons 400 and 500 and the like will be discussed later.
  • the first connector 100 and the second connector 200 of the connection device 1000 for high voltage power supply according to the present invention are detachably connected to each other, when necessary. If the first connector 100 and the second connector 200 are separated from each other in the state where the high voltage power is supplied, however, an arc is generated to make parts damaged or cause safety accidents. So as to prevent such problems, step by step locking is applied to the connectors, and the step by step locking is selectively released by means of a worker’s manipulation.
  • the first connector 100 of the connection device 1000 for high voltage power supply includes: low voltage connection locking means for locking the connection states of the low voltage connection terminals, in the connection states of the high voltage connection terminals 130a and 130b and the low voltage connection terminals,; and high voltage connection locking means adapted to release the connection states of the high voltage connection terminals 130a and 130b, in the state where the connection states of the low voltage connection terminals are released.
  • the first connector 100 of the connection device 1000 for high voltage power supply includes a preparatory locking member 300 adapted to prevent the locking state of the low voltage connection locking means from being erroneously released.
  • the preparatory locking member 300 will be discussed later.
  • the low voltage connection locking means and the high voltage connection locking means of the first connector 100 include locking protrusions (not shown) for being locked onto first and second trapping protrusions 211a and 211b formed on the housing 210 of the second connector 200 and the first and second releasing buttons 400 and 500 for selectively releasing the locking states of the locking protrusions.
  • the second connector 200 on which the first connector 100 is mounted has the housing 210 on which the first connector 100 is mounted, and the housing 210 has the first and second trapping protrusions 211a and 211b for locking the low voltage connection means and the high voltage connection means of the first connector 100.
  • the first and second trapping protrusions 211a and 211b are provided on the top surface of the housing 210 of the second connector 200.
  • the first trapping protrusion 211a is provided to lock the low voltage connection means thereonto, and the second trapping protrusion 211b to lock the high voltage connection means thereonto.
  • the first trapping protrusion 211a and the second trapping protrusion 211b formed on the top surface of the housing 210 of the second connector 200 have the slant surface formed in the direction where the first connector 100 is mounted and the vertical surface formed in the direction where the first connector 100 is separated from the second connector 200, so that the first connector 100 is mounted on the second connector 200, without any trapping or locking, but if it is desired that the first connector 100 is detached from the second connector 200, the locking is conducted by means of the first trapping protrusion 211a and the second trapping protrusion 211b.
  • the first trapping protrusion 211a and the second trapping protrusion 211b are spaced apart from each other by a given distance for being formed at different positions from each other in the mounting and demounting directions of the first and second connectors 100 and 200. That is, the first trapping protrusion 211a and the second trapping protrusion 211b of the second connector 200 are locked at different positions from each other to the first and second locking protrusions (not shown) of the first connector 100. If the first connector 100 is mounted or demounted on/from the second connector 200, the locking and unlocking through the first and second locking protrusions and the first and second trapping protrusions 211a and 211b are one by one conducted. This will be explained later.
  • first trapping protrusion 211a and the second trapping protrusion 211b of the second connector 200 are formed diagonally, thereby enabling the first and second releasing buttons 400 and 500 to be formed side by side in a vertical direction to the mounting direction and further distinguishing the low voltage connection locking state and the high voltage connection locking state through the relative positions of the first connector 100 and the second connector 200, which helps the worker recognize the locking state.
  • FIGS.2a and 2b are front views showing the first connector and the second connector in the connection device according to the present invention.
  • FIG.2a is a front perspective view showing the first connector 100
  • FIG.2b is a front perspective view showing the second connector 200.
  • Each of the first connector 100 and the second connector 200 has the low voltage connection terminals for signal transmission and the high voltage connection terminals for power.
  • the low voltage connection terminals for signal transmission are provided to block the power supply to the high voltage connection terminals for power before the release of the connection states of the high voltage connection terminals for power supply, and upon the demounting of the first and second connectors 100 and 200, the connection states of the low voltage connection terminals for signal transmission of the first and second connectors 100 and 200 are first released. To do this, upon the demounting of the first and second connectors 100 and 200, the connection states of the low voltage connection terminals of the first and second connectors 100 and 200 are first released.
  • connection states of the low voltage connection terminals of the first and second connectors 100 and 200 are released, the time for blocking the power supply to the high voltage connection terminals is ensured and at the same time the generation of arcs is prevented, irrespective of the separating speed of the worker.
  • the first connector 100 has a pair of first high voltage connection terminals 130a and 130b located on the left and right sides thereof, and the second connector 200 has a pair of second high voltage connection terminals 230a and 230b connected with the first high voltage connection terminals 130a and 130b of the first connector 100.
  • the first high voltage connection terminals 130a and 130b of the first connector 100 and the second high voltage connection terminals 230a and 230b of the second connector 200 have male or female type terminals in accordance with their shapes. As shown in FIGS.2a and 2b, the first high voltage connection terminals 130a and 130b are formed of the female type terminals, and the second high voltage connection terminals 230a and 230b are formed of the male type terminals. However, the first high voltage connection terminals 130a and 130b may be formed of the male type terminals, and the second high voltage connection terminals 230a and 230b may be formed of the female type terminals.
  • a pair of first low voltage connection terminals 140a and 140b is disposed up and down between the first high voltage connection terminals 130a and 130b.
  • a pair of second low voltage connection terminals 240a and 240b is provided on the corresponding positions of the second connector 200 to the pair of first low voltage connection terminals 140a and 140b of the first connector 100.
  • the first low voltage connection terminals 140a and 140b of the first connector 100 are formed of the male type terminals, and the second low voltage connection terminals 240a and 240b are formed of the female type terminals.
  • the first low voltage connection terminals 140a and 140b may be formed of the female type terminals, and the second low voltage connection terminals 240a and 240b may be formed of the male type terminals.
  • the first connector 100 further includes a pair of guide parts 135a and 135b adapted to protect the first high voltage connection terminals 130a and 130b and at the same time to guide the mounting process of the first connector 100.
  • the pair of guide parts 135a and 135b is protrudedly formed in such a manner as to accommodate the first high voltage connection terminals 130a and 130b thereinto.
  • the pair of guide parts 135a and 135b of the first connector 100 is guided and inserted into guide recesses 235a and 235b of the second connector 200 in the mounting process of the first connector 100 onto the second connector 200.
  • connection states of the low voltage connection terminals of the connectors are first released to block the power supply, and the connection states of the high voltage connection terminals are then released.
  • connection lengths of the low voltage connection terminals are short, so that the connection of the low voltage connection terminals is obtained after the connection of the high voltage connection terminals, thereby allowing the power after the communication of the low voltage connection terminals starts to be supplied to the high voltage connection terminals.
  • connection lengths of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b are longer than those of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b.
  • connection length of each terminal means the length during which the connection state of each terminal is maintained in the mounting or demounting process of the connectors.
  • the release time point from the connection states of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b should be slower than that from the connection states of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b.
  • connection lengths of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b are longer than those of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b, so that the high voltage connection terminals are separated after the power supply to the high voltage connection terminals has been cut off through the communication blocking of the low voltage connection terminals, thereby preventing sparks from being generated during the separating process of the two connectors.
  • the high voltage connection terminals are in the connection state, and accordingly, the releasing operation of the high voltage connection terminals of the worker needs a given period of time after the release of the low voltage connection terminals, thereby ensuring the time required for the blocking of the high voltage power supply to the high voltage connection terminals and providing high stability.
  • the high voltage connection terminals are first connected, and next, the low voltage connection terminals are connected.
  • the connection states of the low voltage connection terminals are first released, and next, the connection states of the high voltage connection terminals are released.
  • the connection states of the low voltage connection terminals become the condition of the high voltage power supply, and the release from the connection states of the low voltage connection terminals becomes the condition of the blocking of the power supply to the high voltage connection terminals.
  • connection device 1000 for high voltage power supply has preparatory locking means, the low voltage connection locking means and the high voltage connection locking means, wherein the terminals of the respective means are one by one released from their connection state.
  • FIGS.3a and 3b are perspective views showing a releasing process from the preparatory locking state of the first connector in the connection device according to the present invention.
  • the first connector 100 of the connection device 1000 for high voltage power supply includes the low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, the high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals, and the preparatory locking means for selectively blocking the releasing of the low voltage connection locking means.
  • FIG.3a shows the locking state of the preparatory locking member 300 constituting the preparatory locking means in the state where the first connector 100 and the second connector 200 are coupled to each other
  • FIG.3b shows the releasing state from the locking state of the preparatory locking member 300 through sliding backward movement in the state where the first connector 100 and the second connector 200 are coupled to each other.
  • the first connector 100 includes the preparatory locking member 300 for selectively blocking the releasing of the low voltage connection locking means for being inserted or drawn slidingly.
  • the low voltage connection locking means includes the first locking protrusion 410 (See FIG.4a) formed on the housing 110 of the first connector 100 for being locked onto the first trapping protrusion 211a formed on the housing 210 of the second connector 200 onto which the first connector 100 is mounted and the first releasing button 400 adapted to selectively unlock the locking state of the first locking protrusion 410 and the first trapping protrusion 211a, and the high voltage connection locking means includes the second locking protrusion 510 (See FIG.4b) formed on the housing 110 of the first connector 100 for being locked onto the second trapping protrusion 211b formed on the housing 210 of the second connector 200 onto which the first connector 100 is mounted and the second releasing button 500 adapted to selectively unlock the locking state of the second locking protrusion 510 and the second trapping protrusion 211b.
  • the low and high voltage connection locking means of the first connector 100 have the first and second locking protrusions 410 and 510 locked onto the respective first and second trapping protrusions 211a and 211b and the first and second releasing buttons 400 and 500 conducting the releasing operations.
  • the first locking protrusion 410 and the first releasing button 400 of the low voltage connection locking means are formed integrally to the upper portion of the housing 110 of the first connector 100, and the second locking protrusion 510 and the second releasing button 500 of the high voltage connection locking means are formed integrally to the upper portion of the housing 110 of the first connector 100, thereby reducing the number of parts and the number of assembly processes of the first connector 100 and minimizing the possibility of destruction (or losing).
  • the parts constituting the low and high voltage connection locking means are not formed integrally to the housing 110 of the first connector 100, the number of parts is increased and the parts are often lost during the maintenance process. Further, the parts may be easily destructed due to external impacts, thereby greatly increasing the maintenance costs thereof. According to the present invention, however, the manufacturing cost of the connectors is reduced and the possibility of malfunction and destruction of the connectors is also minimized.
  • the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state should be released one by one.
  • the preparatory locking state means the locking state capable of preventing the locking state from being easily released by means of the first releasing button 400 or by means of the worker not enough skilled.
  • the connectors may be easily separated through the worker who is not enough skilled or does not have any right on the work, and alternatively, the respective releasing buttons may be pressed by means of the worker’s error to cause the connectors to be unexpectedly separated from each other.
  • the formation of the preparatory locking state prevents the connectors from being arbitrarily or erroneously separated from each other, thereby avoiding the safety accidents generated during the separation process of the connectors.
  • the preparatory locking state is conducted by means of the preparatory locking member 300 mounted on the manipulation part 120 of the housing 110 of the first connector 100 for being slidingly inserted or drawn.
  • the preparatory locking member 300 is located under the first releasing button 400 for blocking the downward movement of the first releasing button 400 by the pressurization of the first releasing button 400, and that is, the preparatory locking member 300 is inserted into a position where the downward movement of the first releasing button 400 is prevented or drawn from to a position where the downward movement of the first releasing button 400 is allowed.
  • the preparatory locking state is achieved by the structure wherein the preparatory locking member 300 is slidingly inserted or drawn into/from the manipulation part 120. Also, when the preparatory locking member 300 is inserted, it is impossible to downwardly move the first releasing button 400, and when it is drawn, it is possible to downwardly move the first releasing button 400.
  • the preparatory locking member 300 is slidingly inserted or drawn into/from the manipulation part 120 of the housing 110 of the first connector 100, but it is also desirable that the preparatory locking member 300 should be not easily separated from the manipulation part 120.
  • the preparatory locking member 300 is separately made and mounted on the manipulation part 120 of the housing 110 of the first connector 100, but it has a separation prevention structure capable of preventing the easy separation from the manipulation part 120, which will be discussed later.
  • the manipulation part 120 of the housing 110 of the first connector 100 has a mounting slot (having no designated reference numerals) formed on the upper portion thereof, into/from which the preparatory locking member 300 is slidingly inserted and drawn.
  • the preparatory locking member 300 is inserted into the mounting slot in the preparatory locking state, so that it is impossible to pressurize and downwardly move the first releasing button 400, and as shown in FIG.3b, the preparatory locking member 300 is drawn from the mounting slot in the preparatory releasing state, so that it is possible to pressurize and downwardly move the first releasing button 400 disposed above the preparatory locking member 300.
  • the preparatory locking state as shown in FIG.3a prevents the first releasing button 400 from being pressurized by means of a worker who does not recognize the operating principle of the preparatory locking member 300 or by means of the error, carelessness or curiosity of a worker who is not well skilled.
  • the preparatory releasing state as shown in FIG.3b means the state wherein the preparatory locking member 300 is drawn by means of a worker, that is, the low voltage locking state is releasable.
  • the state where the low voltage locking state is released means the state wherein the connection and locking of the low voltage connection terminals are maintained but the release of the low voltage locking is possible by means of the operation of the worker.
  • the first releasing button 400 and the second releasing button 500 are disposed side by side on the manipulation part 120 of the housing 110 of the first connector 100 in a vertical direction to the insertion and drawing directions of the preparatory locking member 300, and since they are located adjacent to the rear end of the manipulation part 120 in the drawing direction thereof, the respective locking steps are released one by one by means of the worker’s one hand, without having any separate tool, thereby improving the work efficiency.
  • FIGS.4a and 4b are perspective views showing the releasing process from the low voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
  • FIG.4a shows the states where the preparatory locking state is released by drawing the preparatory locking member 300 of the first connector 100 and the low voltage connection locking state is also released by means of the pressurization of the first releasing button 400, and also shows the enlarged sectional view taken along the line A-A’.
  • FIG.4b shows the states where after the low voltage connection locking state has been released by means of the pressurization of the first releasing button 400 in the state where the preparatory locking state is released by drawing the preparatory locking member 300 of the first connector 100, the first connector 100 is drawn by a predetermined distance (between the first and second trapping protrusions) to cause the high voltage locking state in the state where the connection states of the low voltage connection terminals are released, and also shows the enlarged sectional view taken along the line B-B’.
  • the first releasing button 400 of the first connector 100 is pressurized by means of the worker to release the locking state of the first locking protrusion 410 from the first trapping protrusion 211a of the second connector 200, thereby releasing the low voltage locking state.
  • the first releasing button 400 of the first connector 100 If the first releasing button 400 of the first connector 100 is pressurized, by the principle of a lever, it lifts up the first locking protrusion 410. That is, the first releasing button 400 and the first locking protrusion 410 of the first connector 100 are formed on both ends of the same member as each other and connected to the housing 110 only in the restricted area (not shown), so that if any one of them is pressurized, the other is lifted up.
  • the first locking protrusion 410 formed integrally to the first releasing button 400 of the first connector 100 is directly locked onto the first trapping protrusion 211a.
  • An auxiliary protrusion 310 formed on the underside of an end portion 320 of the preparatory locking member 300 slides over the upper portion of the back surface of the first locking protrusion 410 in accordance with the insertion or drawing of the preparatory locking member 300, to provide given operating resistance upon the inserting or drawing operation of the preparatory locking member 300 and to thus prevent the preparatory locking member 300 from being inserted or drawn by itself. Further, the operating resistance helps the worker recognize the operating state of the connection device 1000.
  • the underside surface of the end portion 320 of the preparatory locking member 300 is supported against the top surface of the first locking protrusion 410, so that if the first releasing button 400 is pressurized, the locking state of the first trapping protrusion 211a onto the first locking protrusion 410 is prevented.
  • the preparatory locking member 300 has a locking part 330 formed at the center portion thereof, and a locking projection 420 is formed on the front end of the pressurized portion of the first releasing button 400, so that the complete separation and loss of the preparatory locking member 300 from the manipulation part 120 of the housing 110 of the first connector 100 can be prevented.
  • the locking projection 420 and the locking part 330 are formed in the direction where the preparatory locking member 300 is mounted into the mounting slot of the manipulation part 120 with no interference. That is, the locking projection 420 and the locking part 330 have the shapes providing structural drawing resistance in the drawing direction of the preparatory locking member 300, without having any high insertion resistance in the inserting direction of the preparatory locking member 300.
  • the high voltage connection locking state as shown in FIG.4b accompanies the connection release of the low voltage connection terminals of the first and second connectors 100 and 200 and ensures the time enough to block the power supply to the high voltage connection terminals by means of the connection release of the low voltage connection terminals.
  • the first connector 100 is drawn by a predetermined distance, and during the high voltage locking state is maintained, the communication to the low voltage connection terminals is cut off. Through the communication blocking, next, the power supply to the high voltage connection terminals is cut off.
  • the high voltage connection locking state is obtained by locking the second locking protrusion 510 of the first connector 100 onto the second trapping protrusion 211b of the second connector 200, as shown in FIG.4b.
  • FIG.5 is a perspective view showing the releasing process from the high voltage connection locking state of the first connector and the second connector in the connection device according to the present invention, together with an enlarged sectional view taken along the line C-C’.
  • the releasing process of the high voltage connection locking state is similar to that of the low voltage connection locking state.
  • the second locking protrusion 510 of the first connector 100 is changed to the upwardly lifted state from the second trapping protrusion 211b of the second connector 200 from the locked state thereonto, thereby releasing the high voltage connection locking state.
  • the second locking protrusion 510 of the first connector 100 is operated by the principle of a lever.
  • the first connector 100 in the state where the high voltage connection locking state is released, the first connector 100 is completely separated from the second connector 200, and at the same time, the connection states of the high voltage connection terminals are released in the state where the high voltage power supply to the high voltage connection terminals is cut off, thereby preventing arcs or sparks from being generated from the high voltage connection terminals.
  • FIGS.6a and 6b show the preparatory locking member of the first connector in the connection device according to the present invention.
  • FIG.6a is a side view showing the preparatory locking member 300
  • FIG.6b is a bottom view showing the preparatory locking member 300.
  • the auxiliary protrusion 310 is formed on the underside of the end portion 320 of the preparatory locking member 300 in the inserting direction of the preparatory locking member 300 and slides over the first locking protrusion 410 to provide the given operating resistance upon the drawing operation of the preparatory locking member 300. Further, the end portion 320 of the preparatory locking member 300 is supported against the top surface of the first locking protrusion 410 and lifted up together with the first locking protrusion 410 upon the pressurization of the first releasing button 400, thereby giving no interference to the releasing process of the low voltage connection locking state.
  • the preparatory locking member 300 has the locking part 330 formed steppedly at the center portion thereof to a shape of a vertical partition in the drawing direction thereof, and the locking projection 420 is formed on the front end of the pressurized portion of the first releasing button 400, so that the complete separation and loss of the preparatory locking member 300 from the manipulation part 120 of the housing 110 of the first connector 100 can be prevented and the drawing of the first connector 100 over the predetermined distance can be prevented.
  • a depressed part 340 is formed on the rear side of the locking part 330, and an elevated part 370 is formed on the rear side of the depressed part 340. Further, a grasping part 360 is formed on the end portion in the drawing direction of the preparatory locking member 300 so as to easily conduct the inserting or drawing operation of the preparatory locking member 300.
  • the elevated part 370 is located under the first releasing button 400 in the insertion state of the preparatory locking member 300 so as to block the downward movement of the first releasing button 400 in the insertion state of the preparatory locking member 300.
  • the elevated part 370 is located under the first releasing button 400 in the insertion state of the preparatory locking member 300 and has a shape of a vertical rib.
  • the depressed part 340 has a height lower than the elevated part 370 to provide the space wherein the downward movement of the first releasing button 400 is conducted in the drawing state of the preparatory locking member 300.
  • FIG.7 is a perspective view showing another example of the first connector in the connection device according to the present invention.
  • the connectors for connecting two cables for high voltage power are provided, but even if the number of cables for high voltage power is changed, the cables can be safely separated through the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state.
  • the locking states can be one by one released through the preparatory locking means, the low voltage locking means and the high voltage locking means.
  • the preparatory locking member 300 is mounted on the manipulation part 120 of the housing 110 of the first connector 100 for being inserted or drawn thereinto/therefrom, and the manipulation part 120 has the first releasing button 400 and the second releasing button 500 for releasing the low voltage connection locking state and the high voltage connection locking state.
  • the manipulation part 120 of the first connector 100 of the connection device 1000 for high voltage power supply is provided on top of the housing 110 of the first connector 100, thereby allowing the first and second connectors 100 and 200 to be easily separated from each other by means of the worker’s one hand, but the preparatory locking member 300 is mounted for being inserted into and drawn from the manipulation part 120, thereby preventing the first connector 100 from being separated from the second connector 200 by means of the worker’s carelessness or error. That is, the first connector 100 of the connection device 1000 for high voltage power supply according to the present invention is easily manipulated and more stable.

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Abstract

The present invention relates to connectors and a connection device for high voltage power supply having the connectors connected to each other to constitute a connection device for high voltage power supply having low voltage connection terminals for signal transmission and high voltage connection terminals for power supply, the first connector of the connectors comprising low voltage connection locking means, high voltage connection locking means and preparatory locking means for selectively blocking the releasing of the low voltage connection locking means, wherein the connection states of the low voltage connection terminals are released earlier than those of the high voltage connection terminals i n a separation process of the connectors, and if the connection states of the low voltage connection terminals are released, the power supply to the high voltage connection terminals is cut off.

Description

CONNECTOR AND CONNECTION DEVICE FOR HIGH VOLTAGE POWER SUPPLY HAVING THE CONNECTORS
The present invention relates to connectors for high voltage power supply, and more particularly, to connectors and a connection device for high voltage power supply having the connectors that are capable of preventing the generation of arcs from high voltage connection terminals if the connectors are separated from each other in the process of the high voltage power supply.
Generally, connectors constituting a connection device for high voltage power supply have high voltage connection terminals for power supply and low voltage connection terminals for signal transmission for selectively blocking the power supply to the high voltage terminals for power supply, thereby preventing the generation of arcs from the high voltage connection terminals during the separation process of the connectors.
The low voltage connection terminals for signal transmission are provided to perform the signal transmission for the supply or blocking of the high voltage power supplied through high voltage power cables.
The connection device for high voltage power supply is configured wherein first and second connectors corresponding to each other are mounted on each other and in the state where the high voltage connection terminals and the low voltage connection terminals are connected correspondingly to each other, the power supply is performed through the high voltage connection terminals of the first and second connectors.
Further, so as to prevent the generation of arcs from the high voltage connection terminals when the first connector is separated from the second connector, the low voltage connection terminals of the first and second connectors are first separated from each other, and if the low voltage connection state is released through the separation of the low voltage connection terminals, the high voltage power supply to the high voltage connection terminals is then cut off.
Accordingly, the high voltage power supply to the high voltage connection terminals is cut off before the physical connection of the high voltage connection terminals is released, thereby preventing the generation of arcs upon the connection release of the high voltage connection terminals.
That is, if the two connectors are separated from each other, the connection states of the low voltage connection terminals are first released, so that the high voltage power supply is cut off and in this state, the high voltage connection terminals are then separated, thereby reducing the possibility of the generation of arcs.
Such a two-step connection release method is achieved through the difference between the connection lengths of the connection terminals in the separation process of the connectors. That is, if the connection lengths of the high voltage connection terminals are longer than those of the low voltage connection terminals in the separation process of the coupled connectors, the connection states of the low voltage connection terminals are first released during the separation process, and after a predetermined period of time, the connection states of the high voltage connection terminals are then released. Accordingly, the power supply to the high voltage connection terminals is cut off through the time difference made in the connection release processes of the low and high voltage connection terminals.
However, the time needed for the separation of the connectors is dependent upon the operating speed of each worker. That is, if the separating operation is so rapidly achieved, the high voltage power supply to the high voltage connection terminals may be not cut off before the connection release of the high voltage connection terminals after the connection states of the low voltage connection terminals have been released, which causes the generation of arcs from the high voltage connection terminals.
Alternatively, the connection states of the low voltage connection terminals and the high voltage connection terminals are released through a physical locking structure, so that when the locking states are released, the connection states of the low and high voltage connection terminals are released.
However, the physical locking structure includes locking protrusions, releasing buttons and the like, but the releasing buttons are easily pressurized by means of a worker’s carelessness or a user who does not have any working ability, thereby making the connectors easily separated from each other and unfortunately causing safety accidents and the deterioration of reliability.
Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide connectors and a connection device for high voltage power supply having the connectors that are capable of providing high stability and work efficiency.
In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of connectors connected to each other to constitute a connection device for high voltage power supply having low voltage connection terminals for signal transmission and high voltage connection terminals for power supply, any one of the connectors comprising low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals and preparatory locking means for selectively blocking the releasing of the low voltage connection locking means, wherein the connection states of the low voltage connection terminals are released earlier than those of the high voltage connection terminals in a separation process of the connectors, and if the connection states of the low voltage connection terminals are released, the power supply to the high voltage connection terminals is cut off.
The preparatory locking means, the low voltage connection locking means and the high voltage connection locking means may be provided on a manipulation part mounted on the upper portion of a housing of the first connector.
In the state where the connectors of the connection device for high voltage power supply may be coupled to each other, the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state of the second connector by means of the preparatory locking means, the low voltage connection locking means and the high voltage connection locking means of the first connector are released one by one, and then, the connectors are separated from each other.
The low voltage connection locking means may comprise a first locking protrusion formed downwardly on the housing of the first connector for being locked onto a first trapping protrusion formed on a housing of the second connector onto which the first connector is coupled; and a first releasing button for selectively releasing the locking state of the first locking protrusion, the first locking protrusion and the first releasing button being formed integrally to the upper portion of the housing of the first connector.
If the first releasing button is pressurized, he first locking protrusion locked onto the first trapping protrusion may be lifted up to release the low voltage connection locking state, by the principle of a lever.
In the state where the first releasing button is pressurized, the housing of the first connector may be drawn by a predetermined distance in the separation direction of the connectors to release the connection states of the low voltage connection terminals.
The predetermined distance may be the distance between the first trapping protrusion and a second trapping protrusion for being locked onto the high voltage connection locking means.
The high voltage connection locking means may comprise a second locking protrusion formed downwardly on the housing of the first connector for being locked onto the second trapping protrusion formed on the housing of the second connector onto which the first connector is coupled; and a second releasing button for selectively releasing the locking state of the second locking protrusion, the second locking protrusion and the second releasing button being formed integrally to the upper portion of the housing of the first connector.
If the second releasing button is pressurized, the second locking protrusion locked onto the second trapping protrusion may be lifted up to release the high voltage connection locking state, by the principle of a lever.
The preparatory locking means may comprise a preparatory locking member located under the first releasing button for blocking the downward movement of the first releasing button by the pressurization of the first releasing button, in the state where the connectors of the connection device for high voltage power supply are coupled to each other, so that the preparatory locking member is inserted into a position where the downward movement of the first releasing button is prevented or drawn from to a position where the downward movement of the first releasing button is allowed.
The preparatory locking member may be slidingly inserted into and drawn from a mounting slot formed on the upper portion of the housing of the first connector.
The preparatory locking member may comprise a grasping part formed on the end portion in the drawing direction thereof so as to conduct the inserting or drawing operation of the preparatory locking member and an auxiliary protrusion formed on the underside of the end portion in the inserting direction thereof so as to provide given operating resistance upon the inserting or drawing operation of the preparatory locking member.
The auxiliary protrusion may slide over the upper portion of the back surface of the first locking protrusion so as to provide the given operating resistance upon the inserting or drawing operation of the preparatory locking member.
The preparatory locking member may comprise a locking part formed steppedly at the center portion thereof to a shape of a vertical partition in the drawing direction thereof; and a locking projection formed on the front end of the pressurized portion of the first releasing button for being locked onto the locking part to prevent the preparatory locking member from being separated from the first connector, thereby preventing the drawing of the first connector over the predetermined distance.
The preparatory locking member may comprise a depressed part formed on the rear side of the locking part; and an elevated part formed on the rear side of the depressed part, the elevated part being adapted to block the downward movement of the first releasing button in the inserting state of the preparatory locking member and the depressed part serving as a space wherein the downward movement of the first releasing button is conducted in the drawing state of the preparatory locking member.
The first releasing button and the second releasing button may be formed side by side on the manipulation part in a vertical direction to the inserting or drawing direction of the preparatory locking member.
The first releasing button and the second releasing button may be formed on the rear end of the manipulation part in the drawing direction of the preparatory locking member.
And in accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of a connection device for high voltage power supply, comprising a first connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals, and preparatory locking means mounted to be slidingly inserted or drawn for selectively blocking the releasing of the low voltage connection locking means, a second connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, and trapping protrusions for locking first and second locking protrusions of the low voltage connection locking means and the high voltage connection locking means thereonto, wherein the connection states of the low voltage connection terminals of the first connector and the second connector are released earlier than those of the high voltage connection terminals of the first connector and the second connector in a separation process of the first connector and the second connector, and if the connection states of the low voltage connection terminals of the first connector and the second connector are released, the power supply to the high voltage connection terminals of the first connector and the second connector is cut off.
The trapping protrusions of the second connector may be formed on the surface of a housing of the second connector.
The trapping protrusions may comprise a first trapping protrusion for locking the first locking protrusion of the low voltage connection locking means thereonto, and a second trapping protrusion for locking the second locking protrusion of the high voltage connection locking means thereonto, the first trapping protrusion and the second trapping protrusion being protrudedly formed diagonally from the top surface of the housing of the second connector.
The second connector may comprise the housing having a flange on which two fastening holes are formed diagonally, and the portion of the flange where the fastening holes are formed has a larger width than the other portion thereof.
According to the present invention, the connectors and a connection device for high voltage power supply having the connectors can minimize the number of parts and simplify the locking structure.
According to the present invention, any one of the connectors includes the preparatory locking member, thereby preventing the separation of the connectors by means of a worker’s carelessness or error.
According to the present invention, any one of the connectors includes the preparatory locking member separately mounted thereon for being not separated completely from the connector, thereby minimizing the loss of the preparatory locking member.
According to the present invention, the connectors release one by one the preparatory locking state, the low voltage connection locking state, and the high voltage connection locking state, thereby preventing the generation of errors or safety accidents in the separation process of the connectors.
FIG.1 is a separated perspective view showing a first connector and a second connector on which the first connector is coupled in a connection device for high voltage power supply according to the present invention.
FIGS.2a and 2b are front views showing the first connector and the second connector in the connection device according to the present invention.
FIGS.3a and 3b are perspective views showing the releasing process from the preparatory locking state of the first connector in the connection device according to the present invention.
FIGS.4a and 4b are perspective views showing the releasing process from the low voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
FIG.5 is a perspective view showing the releasing process from the high voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
FIGS.6a and 6b show a preparatory locking member of the first connector in the connection device according to the present invention.
FIG.7 is a perspective view showing another example of the first connector in the connection device according to the present invention.
Hereinafter, an explanation on a connection device for high voltage power supply according to preferred embodiments of the present invention will be in detail given with reference to the attached drawings. The explanation on the specific structure and functions are given just to define the preferred embodiments of the present invention, and the preferred embodiments of the present invention may be provided in various manners, which are not limited to the embodiments described below. In the description of the invention with reference to the attached drawings, further, the same components are indicated by the same reference numerals as each other, and for the brevity of the description, the explanation on their repeated features will be avoided.
FIG.1 is a separated perspective view showing a first connector and a second connector on which the first connector is coupled in a connection device for high voltage power according to the present invention.
A connection device 1000 for high voltage power supply according to the present invention includes connectors having the corresponding shape to each other. For the convenience of the description, the connectors are designated by a first connector 100 and a second connector 200.
The first connector 100 has cable mounting holes 160 to which cables for high voltage power are connected. Further, the second connector 200 detachably connected to the first connector 100 is mounted on an outer wall W of a power supply area or a power demand area.
The second connector 200 is fixedly fastened to the outer wall W by means of fastening members b like bolts.
The second connector 200 has a housing 210 and a flange 215 formed on the housing 210, and the flange 215 has two fastening holes 215h (See FIG.2b) formed diagonally thereon for being fastened to the fastening members b. The portion of the flange 215 where the fastening holes 215h are formed has a larger width than the other portion thereof.
The cables for high voltage power are connected to high voltage connection terminals 130a and 130b for power (See FIG.2a) of the first connector 100 through the cable mounting holes 160 of the first connector 100, and low voltage connection terminals for signal transmission (not shown) are connected to low voltage connection terminals of the second connector 200 to which cables for signal transmission are connected, without any connection through separate cables.
The first connector 100 of the connection device 1000 for high voltage power supply according to the present invention has a housing 110 with a manipulation part 120 formed on the top portion thereof. The manipulation part 120 has first and second releasing buttons 400 and 500 and the like adapted to safely and sequentially separate the first connector 100 from the second connector 200. The first and second releasing buttons 400 and 500 and the like will be discussed later.
The first connector 100 and the second connector 200 of the connection device 1000 for high voltage power supply according to the present invention are detachably connected to each other, when necessary. If the first connector 100 and the second connector 200 are separated from each other in the state where the high voltage power is supplied, however, an arc is generated to make parts damaged or cause safety accidents. So as to prevent such problems, step by step locking is applied to the connectors, and the step by step locking is selectively released by means of a worker’s manipulation.
The first connector 100 of the connection device 1000 for high voltage power supply, as shown in FIG.1, includes: low voltage connection locking means for locking the connection states of the low voltage connection terminals, in the connection states of the high voltage connection terminals 130a and 130b and the low voltage connection terminals,; and high voltage connection locking means adapted to release the connection states of the high voltage connection terminals 130a and 130b, in the state where the connection states of the low voltage connection terminals are released.
Further, the first connector 100 of the connection device 1000 for high voltage power supply, as shown in FIG.1, includes a preparatory locking member 300 adapted to prevent the locking state of the low voltage connection locking means from being erroneously released. The preparatory locking member 300 will be discussed later.
The low voltage connection locking means and the high voltage connection locking means of the first connector 100 include locking protrusions (not shown) for being locked onto first and second trapping protrusions 211a and 211b formed on the housing 210 of the second connector 200 and the first and second releasing buttons 400 and 500 for selectively releasing the locking states of the locking protrusions.
The second connector 200 on which the first connector 100 is mounted, as shown in FIG.1, has the housing 210 on which the first connector 100 is mounted, and the housing 210 has the first and second trapping protrusions 211a and 211b for locking the low voltage connection means and the high voltage connection means of the first connector 100.
As shown in FIG.1, the first and second trapping protrusions 211a and 211b are provided on the top surface of the housing 210 of the second connector 200. The first trapping protrusion 211a is provided to lock the low voltage connection means thereonto, and the second trapping protrusion 211b to lock the high voltage connection means thereonto.
The first trapping protrusion 211a and the second trapping protrusion 211b formed on the top surface of the housing 210 of the second connector 200 have the slant surface formed in the direction where the first connector 100 is mounted and the vertical surface formed in the direction where the first connector 100 is separated from the second connector 200, so that the first connector 100 is mounted on the second connector 200, without any trapping or locking, but if it is desired that the first connector 100 is detached from the second connector 200, the locking is conducted by means of the first trapping protrusion 211a and the second trapping protrusion 211b.
Further, as shown in FIG.1, the first trapping protrusion 211a and the second trapping protrusion 211b are spaced apart from each other by a given distance for being formed at different positions from each other in the mounting and demounting directions of the first and second connectors 100 and 200. That is, the first trapping protrusion 211a and the second trapping protrusion 211b of the second connector 200 are locked at different positions from each other to the first and second locking protrusions (not shown) of the first connector 100. If the first connector 100 is mounted or demounted on/from the second connector 200, the locking and unlocking through the first and second locking protrusions and the first and second trapping protrusions 211a and 211b are one by one conducted. This will be explained later.
In summary, the first trapping protrusion 211a and the second trapping protrusion 211b of the second connector 200 are formed diagonally, thereby enabling the first and second releasing buttons 400 and 500 to be formed side by side in a vertical direction to the mounting direction and further distinguishing the low voltage connection locking state and the high voltage connection locking state through the relative positions of the first connector 100 and the second connector 200, which helps the worker recognize the locking state.
FIGS.2a and 2b are front views showing the first connector and the second connector in the connection device according to the present invention. In more detail, FIG.2a is a front perspective view showing the first connector 100 and FIG.2b is a front perspective view showing the second connector 200.
Each of the first connector 100 and the second connector 200 has the low voltage connection terminals for signal transmission and the high voltage connection terminals for power.
The low voltage connection terminals for signal transmission are provided to block the power supply to the high voltage connection terminals for power before the release of the connection states of the high voltage connection terminals for power supply, and upon the demounting of the first and second connectors 100 and 200, the connection states of the low voltage connection terminals for signal transmission of the first and second connectors 100 and 200 are first released. To do this, upon the demounting of the first and second connectors 100 and 200, the connection states of the low voltage connection terminals of the first and second connectors 100 and 200 are first released. As the connection states of the low voltage connection terminals of the first and second connectors 100 and 200 are released, the time for blocking the power supply to the high voltage connection terminals is ensured and at the same time the generation of arcs is prevented, irrespective of the separating speed of the worker.
As shown in FIGS.2a and 2b, the first connector 100 has a pair of first high voltage connection terminals 130a and 130b located on the left and right sides thereof, and the second connector 200 has a pair of second high voltage connection terminals 230a and 230b connected with the first high voltage connection terminals 130a and 130b of the first connector 100.
The first high voltage connection terminals 130a and 130b of the first connector 100 and the second high voltage connection terminals 230a and 230b of the second connector 200 have male or female type terminals in accordance with their shapes. As shown in FIGS.2a and 2b, the first high voltage connection terminals 130a and 130b are formed of the female type terminals, and the second high voltage connection terminals 230a and 230b are formed of the male type terminals. However, the first high voltage connection terminals 130a and 130b may be formed of the male type terminals, and the second high voltage connection terminals 230a and 230b may be formed of the female type terminals.
Further, as shown in FIGS.2a and 2b, a pair of first low voltage connection terminals 140a and 140b is disposed up and down between the first high voltage connection terminals 130a and 130b. In the same manner as above, a pair of second low voltage connection terminals 240a and 240b is provided on the corresponding positions of the second connector 200 to the pair of first low voltage connection terminals 140a and 140b of the first connector 100.
As shown in FIGS.2a and 2b, the first low voltage connection terminals 140a and 140b of the first connector 100 are formed of the male type terminals, and the second low voltage connection terminals 240a and 240b are formed of the female type terminals. However, the first low voltage connection terminals 140a and 140b may be formed of the female type terminals, and the second low voltage connection terminals 240a and 240b may be formed of the male type terminals.
The first connector 100 further includes a pair of guide parts 135a and 135b adapted to protect the first high voltage connection terminals 130a and 130b and at the same time to guide the mounting process of the first connector 100.
The pair of guide parts 135a and 135b is protrudedly formed in such a manner as to accommodate the first high voltage connection terminals 130a and 130b thereinto.
The pair of guide parts 135a and 135b of the first connector 100 is guided and inserted into guide recesses 235a and 235b of the second connector 200 in the mounting process of the first connector 100 onto the second connector 200.
As mentioned above, if the first and second connectors 100 and 200 are separated from each other, the connection states of the low voltage connection terminals of the connectors are first released to block the power supply, and the connection states of the high voltage connection terminals are then released.
Even in case where the connectors are coupled to each other, the connection lengths of the low voltage connection terminals are short, so that the connection of the low voltage connection terminals is obtained after the connection of the high voltage connection terminals, thereby allowing the power after the communication of the low voltage connection terminals starts to be supplied to the high voltage connection terminals.
As shown in FIGS.2a and 2b, accordingly, the connection lengths of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b are longer than those of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b.
In this case, the connection length of each terminal means the length during which the connection state of each terminal is maintained in the mounting or demounting process of the connectors.
Upon the separation of the two connectors, the release time point from the connection states of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b should be slower than that from the connection states of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b. Accordingly, as shown in FIGS.2a and 2b, the connection lengths of the first high voltage connection terminals 130a and 130b and the second high voltage connection terminals 230a and 230b are longer than those of the first low voltage connection terminals 140a and 140b and the second low voltage connection terminals 240a and 240b, so that the high voltage connection terminals are separated after the power supply to the high voltage connection terminals has been cut off through the communication blocking of the low voltage connection terminals, thereby preventing sparks from being generated during the separating process of the two connectors.
Further, even if the separating process of the connectors is urgently conducted by the worker to release the connection states of the low voltage connection terminals, the high voltage connection terminals are in the connection state, and accordingly, the releasing operation of the high voltage connection terminals of the worker needs a given period of time after the release of the low voltage connection terminals, thereby ensuring the time required for the blocking of the high voltage power supply to the high voltage connection terminals and providing high stability.
Accordingly, in the mounting process of the connectors, the high voltage connection terminals are first connected, and next, the low voltage connection terminals are connected. Contrarily, in the demounting process of the connectors, the connection states of the low voltage connection terminals are first released, and next, the connection states of the high voltage connection terminals are released. As a result, the connection states of the low voltage connection terminals become the condition of the high voltage power supply, and the release from the connection states of the low voltage connection terminals becomes the condition of the blocking of the power supply to the high voltage connection terminals.
So as to allow the mounting and demounting of the connectors to be conducted safely, the connection device 1000 for high voltage power supply according to the present invention has preparatory locking means, the low voltage connection locking means and the high voltage connection locking means, wherein the terminals of the respective means are one by one released from their connection state.
FIGS.3a and 3b are perspective views showing a releasing process from the preparatory locking state of the first connector in the connection device according to the present invention.
The first connector 100 of the connection device 1000 for high voltage power supply according to the present invention includes the low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, the high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals, and the preparatory locking means for selectively blocking the releasing of the low voltage connection locking means.
In more detail, FIG.3a shows the locking state of the preparatory locking member 300 constituting the preparatory locking means in the state where the first connector 100 and the second connector 200 are coupled to each other, and FIG.3b shows the releasing state from the locking state of the preparatory locking member 300 through sliding backward movement in the state where the first connector 100 and the second connector 200 are coupled to each other.
As mentioned above, the first connector 100 includes the preparatory locking member 300 for selectively blocking the releasing of the low voltage connection locking means for being inserted or drawn slidingly.
The low voltage connection locking means includes the first locking protrusion 410 (See FIG.4a) formed on the housing 110 of the first connector 100 for being locked onto the first trapping protrusion 211a formed on the housing 210 of the second connector 200 onto which the first connector 100 is mounted and the first releasing button 400 adapted to selectively unlock the locking state of the first locking protrusion 410 and the first trapping protrusion 211a, and the high voltage connection locking means includes the second locking protrusion 510 (See FIG.4b) formed on the housing 110 of the first connector 100 for being locked onto the second trapping protrusion 211b formed on the housing 210 of the second connector 200 onto which the first connector 100 is mounted and the second releasing button 500 adapted to selectively unlock the locking state of the second locking protrusion 510 and the second trapping protrusion 211b.
The low and high voltage connection locking means of the first connector 100 have the first and second locking protrusions 410 and 510 locked onto the respective first and second trapping protrusions 211a and 211b and the first and second releasing buttons 400 and 500 conducting the releasing operations.
The first locking protrusion 410 and the first releasing button 400 of the low voltage connection locking means are formed integrally to the upper portion of the housing 110 of the first connector 100, and the second locking protrusion 510 and the second releasing button 500 of the high voltage connection locking means are formed integrally to the upper portion of the housing 110 of the first connector 100, thereby reducing the number of parts and the number of assembly processes of the first connector 100 and minimizing the possibility of destruction (or losing).
If the parts constituting the low and high voltage connection locking means are not formed integrally to the housing 110 of the first connector 100, the number of parts is increased and the parts are often lost during the maintenance process. Further, the parts may be easily destructed due to external impacts, thereby greatly increasing the maintenance costs thereof. According to the present invention, however, the manufacturing cost of the connectors is reduced and the possibility of malfunction and destruction of the connectors is also minimized.
So as to release the mounted state of the first connector 100 onto the second connector 200 in the connection device 1000 for high voltage power supply, the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state should be released one by one.
In this case, the preparatory locking state means the locking state capable of preventing the locking state from being easily released by means of the first releasing button 400 or by means of the worker not enough skilled.
That is, so as to prevent the arbitrary separation of the connectors except the preparatory locking state, if the low and high voltage locking states are releasable by means of just the first and second releasing buttons 400 and 500, the connectors may be easily separated through the worker who is not enough skilled or does not have any right on the work, and alternatively, the respective releasing buttons may be pressed by means of the worker’s error to cause the connectors to be unexpectedly separated from each other.
The formation of the preparatory locking state prevents the connectors from being arbitrarily or erroneously separated from each other, thereby avoiding the safety accidents generated during the separation process of the connectors.
The preparatory locking state is conducted by means of the preparatory locking member 300 mounted on the manipulation part 120 of the housing 110 of the first connector 100 for being slidingly inserted or drawn.
The preparatory locking member 300 is located under the first releasing button 400 for blocking the downward movement of the first releasing button 400 by the pressurization of the first releasing button 400, and that is, the preparatory locking member 300 is inserted into a position where the downward movement of the first releasing button 400 is prevented or drawn from to a position where the downward movement of the first releasing button 400 is allowed.
In the insertion state of the preparatory locking member 300 it is impossible to pressurize the first releasing button 400, and in the drawn state thereof, it is possible to pressurize the first releasing button 400.
The preparatory locking state is achieved by the structure wherein the preparatory locking member 300 is slidingly inserted or drawn into/from the manipulation part 120. Also, when the preparatory locking member 300 is inserted, it is impossible to downwardly move the first releasing button 400, and when it is drawn, it is possible to downwardly move the first releasing button 400.
The preparatory locking member 300 is slidingly inserted or drawn into/from the manipulation part 120 of the housing 110 of the first connector 100, but it is also desirable that the preparatory locking member 300 should be not easily separated from the manipulation part 120.
Accordingly, the preparatory locking member 300 is separately made and mounted on the manipulation part 120 of the housing 110 of the first connector 100, but it has a separation prevention structure capable of preventing the easy separation from the manipulation part 120, which will be discussed later.
As shown in FIGS.3a and 3b, the manipulation part 120 of the housing 110 of the first connector 100 has a mounting slot (having no designated reference numerals) formed on the upper portion thereof, into/from which the preparatory locking member 300 is slidingly inserted and drawn.
As shown in FIG.3a, the preparatory locking member 300 is inserted into the mounting slot in the preparatory locking state, so that it is impossible to pressurize and downwardly move the first releasing button 400, and as shown in FIG.3b, the preparatory locking member 300 is drawn from the mounting slot in the preparatory releasing state,, so that it is possible to pressurize and downwardly move the first releasing button 400 disposed above the preparatory locking member 300.
That is, the preparatory locking state as shown in FIG.3a prevents the first releasing button 400 from being pressurized by means of a worker who does not recognize the operating principle of the preparatory locking member 300 or by means of the error, carelessness or curiosity of a worker who is not well skilled.
Further, the preparatory releasing state as shown in FIG.3b means the state wherein the preparatory locking member 300 is drawn by means of a worker, that is, the low voltage locking state is releasable.
In this case, the state where the low voltage locking state is released means the state wherein the connection and locking of the low voltage connection terminals are maintained but the release of the low voltage locking is possible by means of the operation of the worker.
As shown in FIGS.3a and 3b, the first releasing button 400 and the second releasing button 500 are disposed side by side on the manipulation part 120 of the housing 110 of the first connector 100 in a vertical direction to the insertion and drawing directions of the preparatory locking member 300, and since they are located adjacent to the rear end of the manipulation part 120 in the drawing direction thereof, the respective locking steps are released one by one by means of the worker’s one hand, without having any separate tool, thereby improving the work efficiency.
FIGS.4a and 4b are perspective views showing the releasing process from the low voltage connection locking states of the first connector and the second connector in the connection device according to the present invention.
In more detail, FIG.4a shows the states where the preparatory locking state is released by drawing the preparatory locking member 300 of the first connector 100 and the low voltage connection locking state is also released by means of the pressurization of the first releasing button 400, and also shows the enlarged sectional view taken along the line A-A’. FIG.4b shows the states where after the low voltage connection locking state has been released by means of the pressurization of the first releasing button 400 in the state where the preparatory locking state is released by drawing the preparatory locking member 300 of the first connector 100, the first connector 100 is drawn by a predetermined distance (between the first and second trapping protrusions) to cause the high voltage locking state in the state where the connection states of the low voltage connection terminals are released, and also shows the enlarged sectional view taken along the line B-B’.
As shown in FIG.4b, if the preparatory locking state is released by drawing the preparatory locking member 300, so as to separate the first and second connectors 100 and 200, the first releasing button 400 of the first connector 100 is pressurized by means of the worker to release the locking state of the first locking protrusion 410 from the first trapping protrusion 211a of the second connector 200, thereby releasing the low voltage locking state.
If the first releasing button 400 of the first connector 100 is pressurized, by the principle of a lever, it lifts up the first locking protrusion 410. That is, the first releasing button 400 and the first locking protrusion 410 of the first connector 100 are formed on both ends of the same member as each other and connected to the housing 110 only in the restricted area (not shown), so that if any one of them is pressurized, the other is lifted up.
The first locking protrusion 410 formed integrally to the first releasing button 400 of the first connector 100 is directly locked onto the first trapping protrusion 211a.
An auxiliary protrusion 310 formed on the underside of an end portion 320 of the preparatory locking member 300 slides over the upper portion of the back surface of the first locking protrusion 410 in accordance with the insertion or drawing of the preparatory locking member 300, to provide given operating resistance upon the inserting or drawing operation of the preparatory locking member 300 and to thus prevent the preparatory locking member 300 from being inserted or drawn by itself. Further, the operating resistance helps the worker recognize the operating state of the connection device 1000.
Moreover, the underside surface of the end portion 320 of the preparatory locking member 300 is supported against the top surface of the first locking protrusion 410, so that if the first releasing button 400 is pressurized, the locking state of the first trapping protrusion 211a onto the first locking protrusion 410 is prevented.
The preparatory locking member 300 has a locking part 330 formed at the center portion thereof, and a locking projection 420 is formed on the front end of the pressurized portion of the first releasing button 400, so that the complete separation and loss of the preparatory locking member 300 from the manipulation part 120 of the housing 110 of the first connector 100 can be prevented.
The locking projection 420 and the locking part 330 are formed in the direction where the preparatory locking member 300 is mounted into the mounting slot of the manipulation part 120 with no interference. That is, the locking projection 420 and the locking part 330 have the shapes providing structural drawing resistance in the drawing direction of the preparatory locking member 300, without having any high insertion resistance in the inserting direction of the preparatory locking member 300.
In the state where the first releasing button 400 is pressurized as shown in FIG.4a, if the first connector 100 is drawn from the second connector 200, as shown in FIG.4b, the low voltage connection state is released and at the same time the high voltage connection locking state is kept.
The high voltage connection locking state as shown in FIG.4b accompanies the connection release of the low voltage connection terminals of the first and second connectors 100 and 200 and ensures the time enough to block the power supply to the high voltage connection terminals by means of the connection release of the low voltage connection terminals.
Accordingly, as shown in FIG.4b, the first connector 100 is drawn by a predetermined distance, and during the high voltage locking state is maintained, the communication to the low voltage connection terminals is cut off. Through the communication blocking, next, the power supply to the high voltage connection terminals is cut off.
The high voltage connection locking state is obtained by locking the second locking protrusion 510 of the first connector 100 onto the second trapping protrusion 211b of the second connector 200, as shown in FIG.4b.
FIG.5 is a perspective view showing the releasing process from the high voltage connection locking state of the first connector and the second connector in the connection device according to the present invention, together with an enlarged sectional view taken along the line C-C’.
The releasing process of the high voltage connection locking state is similar to that of the low voltage connection locking state.
As the second releasing button 500 is pressurized, the second locking protrusion 510 of the first connector 100 is changed to the upwardly lifted state from the second trapping protrusion 211b of the second connector 200 from the locked state thereonto, thereby releasing the high voltage connection locking state.
If the second releasing button 500 is pressurized, the second locking protrusion 510 of the first connector 100 is operated by the principle of a lever.
Accordingly, as shown in FIG.5, in the state where the high voltage connection locking state is released, the first connector 100 is completely separated from the second connector 200, and at the same time, the connection states of the high voltage connection terminals are released in the state where the high voltage power supply to the high voltage connection terminals is cut off, thereby preventing arcs or sparks from being generated from the high voltage connection terminals.
FIGS.6a and 6b show the preparatory locking member of the first connector in the connection device according to the present invention.
In more detail, FIG.6a is a side view showing the preparatory locking member 300, and FIG.6b is a bottom view showing the preparatory locking member 300.
The auxiliary protrusion 310 is formed on the underside of the end portion 320 of the preparatory locking member 300 in the inserting direction of the preparatory locking member 300 and slides over the first locking protrusion 410 to provide the given operating resistance upon the drawing operation of the preparatory locking member 300. Further, the end portion 320 of the preparatory locking member 300 is supported against the top surface of the first locking protrusion 410 and lifted up together with the first locking protrusion 410 upon the pressurization of the first releasing button 400, thereby giving no interference to the releasing process of the low voltage connection locking state.
The preparatory locking member 300 has the locking part 330 formed steppedly at the center portion thereof to a shape of a vertical partition in the drawing direction thereof, and the locking projection 420 is formed on the front end of the pressurized portion of the first releasing button 400, so that the complete separation and loss of the preparatory locking member 300 from the manipulation part 120 of the housing 110 of the first connector 100 can be prevented and the drawing of the first connector 100 over the predetermined distance can be prevented.
A depressed part 340 is formed on the rear side of the locking part 330, and an elevated part 370 is formed on the rear side of the depressed part 340. Further, a grasping part 360 is formed on the end portion in the drawing direction of the preparatory locking member 300 so as to easily conduct the inserting or drawing operation of the preparatory locking member 300.
The elevated part 370 is located under the first releasing button 400 in the insertion state of the preparatory locking member 300 so as to block the downward movement of the first releasing button 400 in the insertion state of the preparatory locking member 300.
The elevated part 370 is located under the first releasing button 400 in the insertion state of the preparatory locking member 300 and has a shape of a vertical rib.
The depressed part 340 has a height lower than the elevated part 370 to provide the space wherein the downward movement of the first releasing button 400 is conducted in the drawing state of the preparatory locking member 300.
FIG.7 is a perspective view showing another example of the first connector in the connection device according to the present invention.
In the embodiment of the present invention as shown in FIGS.1 to 6b, the connectors for connecting two cables for high voltage power are provided, but even if the number of cables for high voltage power is changed, the cables can be safely separated through the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state. In the same manner as above, the locking states can be one by one released through the preparatory locking means, the low voltage locking means and the high voltage locking means.
As shown in FIG.7, the preparatory locking member 300 is mounted on the manipulation part 120 of the housing 110 of the first connector 100 for being inserted or drawn thereinto/therefrom, and the manipulation part 120 has the first releasing button 400 and the second releasing button 500 for releasing the low voltage connection locking state and the high voltage connection locking state.
The manipulation part 120 of the first connector 100 of the connection device 1000 for high voltage power supply is provided on top of the housing 110 of the first connector 100, thereby allowing the first and second connectors 100 and 200 to be easily separated from each other by means of the worker’s one hand, but the preparatory locking member 300 is mounted for being inserted into and drawn from the manipulation part 120, thereby preventing the first connector 100 from being separated from the second connector 200 by means of the worker’s carelessness or error. That is, the first connector 100 of the connection device 1000 for high voltage power supply according to the present invention is easily manipulated and more stable.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Claims (21)

  1. Connectors connected to each other to constitute a connection device for high voltage power supply having low voltage connection terminals for signal transmission and high voltage connection terminals for power supply, the first connector of the connectors comprising:
    low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals;
    high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals; and
    preparatory locking means for selectively blocking the releasing of the low voltage connection locking means,
    wherein the connection states of the low voltage connection terminals are released earlier than those of the high voltage connection terminals in a separation process of the connectors, and if the connection states of the low voltage connection terminals are released, the power supply to the high voltage connection terminals is cut off.
  2. The connectors according to claim 1, wherein the preparatory locking means, the low voltage connection locking means and the high voltage connection locking means are provided on a manipulation part mounted on the upper portion of a housing of the first connector.
  3. The connectors according to claim 1, wherein in the state where the connectors of the connection device for high voltage power supply are coupled to each other, the preparatory locking state, the low voltage connection locking state and the high voltage connection locking state of the second connector by means of the preparatory locking means, the low voltage connection locking means and the high voltage connection locking means of the first connector are released one by one, and then, the connectors are separated from each other.
  4. The connectors according to claim 1, wherein the low voltage connection locking means comprises: a first locking protrusion formed downwardly on the housing of the first connector for being locked onto a first trapping protrusion formed on a housing of the second connector onto which the first connector is coupled; and a first releasing button for selectively releasing the locking state of the first locking protrusion, the first locking protrusion and the first releasing button being formed integrally to the upper portion of the housing of the first connector.
  5. The connectors according to claim 4, wherein if the first releasing button is pressurized, the first locking protrusion locked onto the first trapping protrusion is lifted up to release the low voltage connection locking state, by the principle of a lever.
  6. The connectors according to claim 5, wherein in the state where the first releasing button is pressurized, the housing of the first connector is drawn by a predetermined distance in the separation direction of the connectors to release the connection states of the low voltage connection terminals.
  7. The connectors according to claim 6, wherein the predetermined distance is the distance between the first trapping protrusion and a second trapping protrusion for being locked onto the high voltage connection locking means.
  8. The connectors according to claim 4, wherein the high voltage connection locking means comprises: a second locking protrusion formed downwardly on the housing of the first connector for being locked onto the second trapping protrusion formed on the housing of the second connector onto which the first connector is coupled; and a second releasing button for selectively releasing the locking state of the second locking protrusion, the second locking protrusion and the second releasing button being formed integrally to the upper portion of the housing of the first connector.
  9. The connectors according to claim 8, wherein if the second releasing button is pressurized, the second locking protrusion locked onto the second trapping protrusion is lifted up to release the high voltage connection locking state, by the principle of a lever.
  10. The connectors according to claim 4, wherein the preparatory locking means comprises a preparatory locking member located under the first releasing button for blocking the downward movement of the first releasing button by the pressurization of the first releasing button, in the state where the connectors of the connection device for high voltage power supply are coupled to each other, so that the preparatory locking member is inserted into a position where the downward movement of the first releasing button is prevented or drawn from to a position where the downward movement of the first releasing button is allowed.
  11. The connectors according to claim 10, wherein the preparatory locking member is slidingly inserted into and drawn from a mounting slot formed on the upper portion of the housing of the first connector.
  12. The connectors according to claim 11, wherein the preparatory locking member comprises a grasping part formed on the end portion in the drawing direction thereof so as to conduct the inserting or drawing operation of the preparatory locking member and an auxiliary protrusion formed on the underside of the end portion in the inserting direction thereof so as to provide given operating resistance upon the inserting or drawing operation of the preparatory locking member.
  13. The connectors according to claim 12, wherein the auxiliary protrusion slides over the upper portion of the back surface of the first locking protrusion so as to provide the given operating resistance upon the inserting or drawing operation of the preparatory locking member.
  14. The connectors according to claim 12, wherein the preparatory locking member comprises: a locking part formed steppedly at the center portion thereof to a shape of a vertical partition in the drawing direction thereof; and a locking projection formed on the front end of the pressurized portion of the first releasing button for being locked onto the locking part to prevent the preparatory locking member from being separated from the first connector, thereby preventing the drawing of the first connector over the predetermined distance.
  15. The connectors according to claim 14, wherein the preparatory locking member comprises: a depressed part formed on the rear side of the locking part; and an elevated part formed on the rear side of the depressed part, the elevated part being adapted to block the downward movement of the first releasing button in the inserting state of the preparatory locking member and the depressed part serving as a space where the downward movement of the first releasing button is conducted in the drawing state of the preparatory locking member.
  16. The connectors according to claim 8, wherein the first releasing button and the second releasing button are formed side by side on the manipulation part in a vertical direction to the inserting or drawing direction of the preparatory locking member.
  17. The connectors according to claim 8, wherein the first releasing button and the second releasing button are formed on the rear end of the manipulation part in the drawing direction of the preparatory locking member.
  18. A connection device for high voltage power supply, comprising:
    a first connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, low voltage connection locking means for selectively locking or releasing the connection states of the low voltage connection terminals, high voltage connection locking means for selectively locking or releasing the connection states of the high voltage connection terminals, and preparatory locking means mounted to be slidingly inserted or drawn for selectively blocking the releasing of the low voltage connection locking means,
    a second connector having low voltage connection terminals for signal transmission, high voltage connection terminals for power supply, and trapping protrusions for locking first and second locking protrusions of the low voltage connection locking means and the high voltage connection locking means thereonto, wherein the connection states of the low voltage connection terminals of the first connector and the second connector are released earlier than those of the high voltage connection terminals of the first connector and the second connector in a separation process of the first connector and the second connector, and if the connection states of the low voltage connection terminals of the first connector and the second connector are released, the power supply to the high voltage connection terminals of the first connector and the second connector is cut off.
  19. The connection device according to claim 18, wherein the trapping protrusions of the second connector are formed on the surface of a housing of the second connector.
  20. The connection device according to claim 19, wherein the trapping protrusions comprise: a first trapping protrusion for locking the first locking protrusion of the low voltage connection locking means thereonto; and a second trapping protrusion for locking the second locking protrusion of the high voltage connection locking means thereonto, the first trapping protrusion and the second trapping protrusion being protrudedly formed diagonally from the top surface of the housing of the second connector.
  21. The connection device according to claim 18, wherein the second connector comprises the housing having a flange on which two fastening holes are formed diagonally, and the portion of the flange where the fastening holes are formed has a larger width than the other portion thereof.
PCT/KR2013/008508 2012-11-08 2013-09-24 Connector and connection device for high voltage power supply having the connectors WO2014073784A1 (en)

Priority Applications (1)

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CN201380058664.7A CN104823337B (en) 2012-11-08 2013-09-24 Adapter and the attachment means for high-tension electricity supply with the adapter

Applications Claiming Priority (2)

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KR1020120126032A KR101919159B1 (en) 2012-11-08 2012-11-08 Connector and contact device for high voltage power having the same
KR10-2012-0126032 2012-11-08

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CN106992397B (en) * 2017-03-30 2023-04-28 四川永贵科技有限公司 Graded locking assembly for electrical connector
KR102029377B1 (en) * 2017-12-29 2019-10-07 주식회사 유라코퍼레이션 High voltage connector
JP6736031B2 (en) * 2018-07-02 2020-08-05 株式会社タツノ Supply device

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CN104823337A (en) 2015-08-05
CN104823337B (en) 2017-04-05
KR20140059499A (en) 2014-05-16
KR101919159B1 (en) 2018-11-15

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