WO2020042910A1 - 电能计量用联合接线盒 - Google Patents

电能计量用联合接线盒 Download PDF

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Publication number
WO2020042910A1
WO2020042910A1 PCT/CN2019/100546 CN2019100546W WO2020042910A1 WO 2020042910 A1 WO2020042910 A1 WO 2020042910A1 CN 2019100546 W CN2019100546 W CN 2019100546W WO 2020042910 A1 WO2020042910 A1 WO 2020042910A1
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WIPO (PCT)
Prior art keywords
voltage
terminal
switch
current
connection
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Application number
PCT/CN2019/100546
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English (en)
French (fr)
Inventor
于海波
林繁涛
徐英辉
李贺龙
王兴媛
刘佳
王春雨
陈伟
Original Assignee
中国电力科学研究院有限公司
国家电网有限公司
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Application filed by 中国电力科学研究院有限公司, 国家电网有限公司 filed Critical 中国电力科学研究院有限公司
Publication of WO2020042910A1 publication Critical patent/WO2020042910A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/04—Housings; Supporting racks; Arrangements of terminals

Definitions

  • This document relates to the technical field of joint junction boxes, for example, to a joint junction box for electric energy measurement.
  • the joint terminal box for electric energy measurement is an important part of the metering secondary circuit. Its role is to connect the secondary wires from the mutual inductor in series and parallel to the terminals of the joint terminal box and then connect them to the terminals of the energy meter.
  • the position of the upper dial changes the on-off state of the test circuit, and provides the necessary conditions for on-site calibration of the measuring device with load, power inspection and replacement of the energy meter.
  • the existing combined junction box for electric energy measurement has the following problems during use: In a normal working state, the voltage paddle in the junction box is in an on state, and the current paddle is in an on-off state. In order to realize the operation of the user to replace the energy meter with a load on the site, it is necessary to disconnect the voltage paddle and short the current paddle, and restore the voltage and current paddle to the original state after the meter replacement work is completed. However, due to improper operation, the phenomenon that the voltage and current paddles are not reliably restored will cause the electricity to be missed and misremembered. Secondly, because the paddle is directly connected to the copper bar in the junction box by screws, the paddle itself is live. When the staff operates the paddle, it is live work, which brings hidden dangers to safe production.
  • This paper proposes a joint junction box for electric energy measurement, which aims to solve the problem of improving work efficiency and reducing labor intensity.
  • This article proposes a combined junction box for electrical energy measurement, including: a base, a base cover, and a plug-in tooling, wherein the base is provided with a current terminal and a voltage terminal, and a detection switch is provided on the current terminal.
  • a meter switch the current connection terminal is further provided with a current connection contact configured to be connected to the field calibrator;
  • the voltage connection terminal is provided with a voltage switch, and the voltage connection terminal is further provided with a configuration configured as A voltage connection contact connected to the field calibrator;
  • the base cover is an open box body, and the open side of the base cover is connected to the base and closed;
  • a detection switch is provided on the bottom surface of the base cover Through the hole, the detection switch through hole is disposed opposite to the button of the detection switch so that the button of the detection switch passes through;
  • the bottom surface of the base cover is also provided with a meter change switch through hole, and the meter change switch The through hole is opposite to the pin hole of the meter change switch so that the pins
  • a point through hole, the current connection contact through hole is opposite to the current connection contact so that the current connection end of the field calibrator passes through;
  • a voltage switch through hole is also provided on the bottom surface of the base cover The voltage switch through hole is disposed opposite to the button of the voltage switch so that the button of the voltage switch passes;
  • the bottom surface of the base cover is also provided with a voltage connection contact through hole, and the voltage connection contact A hole is arranged opposite to the voltage connection contact so that the voltage connection end of the field calibrator passes;
  • the plug-in tool is inserted on the upper side of the bottom surface of the base cover, and the plug-in tool
  • the test tool includes a test tool and a meter changing tool.
  • the test tool is provided with a detection button, a current test hole, and a voltage test hole.
  • the detection button is opposite to the detection switch through hole and is in contact with the button of the detection switch.
  • the current test hole is disposed opposite to the current connection contact passage hole, and the voltage test hole is disposed opposite to the voltage connection contact passage hole;
  • a pin light hole and a voltage button are disposed, the pin light hole is opposite to the meter switch switch through hole, the voltage button is opposite to the voltage switch through hole, and is in contact with the button of the voltage switch .
  • FIG. 1 is a structural diagram of a junction box provided by an embodiment of the present invention
  • FIG. 2 is a top view of a junction box base provided by an embodiment of the present invention.
  • FIG. 3 is a connection schematic diagram of a junction box base and a base cover according to an embodiment of the present invention
  • FIG. 4 is a perspective view of a detection tool provided by an embodiment of the present invention.
  • FIG. 5 is a perspective view of a meter changing tool provided by an embodiment of the present invention.
  • FIG. 6 is a perspective view of a detection switch according to an embodiment of the present invention.
  • FIG. 7 is a perspective view of a voltage switch according to an embodiment of the present invention.
  • an embodiment of the present invention provides a junction box for electric energy measurement, including: a box cover 16, a base 14, a base cover 15, and a plug-in tool, wherein a current terminal is provided on the base 14. 17 and voltage connection terminal 18, current connection terminal 17 is provided with a detection switch 19 (for example: a push-type detection switch) and a meter change switch 21 (for example: a plug-in type meter change switch).
  • a detection switch 19 for example: a push-type detection switch
  • a meter change switch 21 for example: a plug-in type meter change switch
  • a current connection contact 22 configured to be connected to a field calibrator (hereinafter referred to as a current calibration instrument) is provided; a voltage switch 20 (for example, a push-type voltage switch) is provided on the voltage connection terminal 18, and a voltage connection terminal 18 is also provided with a voltage connection contact 23 configured to be connected to the current calibration instrument.
  • a field calibrator hereinafter referred to as a current calibration instrument
  • the current terminal 17 refers to a terminal of a current line on a junction box, and the current terminal 17 is used to crimp a current wire;
  • the voltage terminal 18 refers to a terminal of a voltage line on the terminal box, The voltage terminal 18 is used for crimping a voltage lead.
  • the base cover 15 is an open box body.
  • the cross-section of the base cover 15 and the base 14 are the same.
  • the open side of the base cover 15 is connected to the base 14 and closed.
  • a cavity is formed inside to place corresponding components.
  • a detection switch passage hole 24 is provided on the bottom surface of the base cover 15, and the detection switch passage hole 24 is opposite to the button of the detection switch 19 so that the button of the detection switch 19 passes; a bottom surface of the base cover 15 is further provided.
  • the meter change switch passage hole 25 is arranged opposite to the pin hole of the meter change switch 21 so that the pin 49 of the meter switch 21 passes; the bottom surface of the base cover 15 is also provided with a current connection contact Through the hole 26, the current connection contact is disposed opposite the current connection contact 22 through the hole 26 so that the current connection end of the current calibration instrument passes;
  • a voltage switch passage hole 27 is also provided on the bottom surface of the base cover 15 and the voltage switch passage hole 27 is arranged opposite to the button of the voltage switch 20 so that the button of the voltage switch 20 passes; the bottom surface of the base cover 15 is also provided with a voltage connection contact through hole 28, and the voltage connection contact is opposed to the voltage connection contact 23 through the hole 28 Set so that the voltage connection of the current calibration instrument passes.
  • the box cover 16 is an open box body, and the cover is disposed on the upper side of the base cover 15.
  • the box cover 16, the base 14 and the base cover 15 are arranged in order.
  • the three are connected to form a closed box body; the box cover 16
  • a first connection hole is provided on opposite sides of the opposite bottom surface, and a second connection hole is provided on opposite sides of the bottom surface of the base cover 15.
  • the first connection hole and the second connection hole are oppositely disposed, and the box cover 16 and the base are bolted or screwed.
  • the cover 15 is integrally connected.
  • the plug-in tool is inserted on the upper side of the bottom surface of the base cover 15.
  • the plug-in tool includes a test tool 29 and a meter change tool 30.
  • the test tool 29 is provided with a detection button 31, a current test hole 32, and a voltage.
  • the test hole 33, the detection button 31 is disposed opposite the detection switch passage hole 24, and is in contact with the button of the detection switch 19, the current test hole 32 is disposed opposite the current connection contact passage hole 26, and the voltage test hole 33 is passed through the voltage connection contact.
  • the hole 28 is oppositely disposed; a pin light hole 34 and a voltage button 35 are provided on the meter changing tool 30.
  • the pin light hole 34 is opposite to the meter switch switch through hole 25, and the voltage button 35 and the voltage switch pass hole 27 are opposite to each other. It is in contact with the button of the voltage switch 20.
  • the pin 49 is disposed in the pin light hole 34.
  • the detection switch can switch the current and voltage loops when checking the meter, and seamlessly connect the current calibration instrument to the test loop; the meter switch is used to replace the energy meter, and it can short circuit the circuit.
  • the above-mentioned combined switch mode switching circuit is convenient for standardized operation and improved work efficiency.
  • the detection switch, voltage switch and meter change switch are multi-contact path switches, which can effectively optimize the way of crimping the conductor and increase the live contact area.
  • the testing tool and the meter changing tool are connected to the base cover by plugging in.
  • the test line is properly connected to the testing tool, the meter changing tool and the junction box by plugging the tools. It is snapped into the junction box and controls the switches on the tooling to achieve the established function.
  • the operation process is safe and reliable, which effectively improves the work efficiency.
  • the current connection terminal 17 includes three current connection sub-terminals 36 (for example, the first current connection sub-terminal 2, the second current connection sub-terminal 3, and the third current connection sub-terminal shown in FIG. 2). 4), the detection switch 19 is disposed between one of two adjacent current connection sub-terminals 36 (for example, between the first current connection sub-terminal 2 and the second current connection sub-terminal 3 in FIG. 2), so that three One of the two adjacent current connection sub-terminals 36 (for example, the first current connection sub-terminal 2 and the second current connection sub-terminal 3 in FIG. 2) is opened or closed, and Two adjacent current connection sub-terminals 36 (for example, the first current connection sub-terminal 2 and the second current connection sub-terminal 3 in FIG.
  • the meter change switch 21 is disposed between two adjacent two current connection sub-terminals 36 (for example, the second current connection sub-terminal 3 and the third current connection sub-terminal 4 in FIG. 2), so that another adjacent The two current wiring sub-terminals 36 (for example, the second current wiring sub-terminal 3 and the third current wiring sub-terminal 4 in FIG. 2) are opened or closed.
  • the voltage connection terminal 18 includes a voltage connection sub-terminal 37.
  • the voltage switch 20 is disposed on the voltage connection sub-terminal 37.
  • the voltage switch 20 is configured to connect the input terminal and the output terminal of the voltage connection sub-terminal 37. Connected or disconnected.
  • the voltage connection contact 23 is provided on the voltage connection sub-terminal 37.
  • the plug-in terminal box is mainly divided into two parts: the terminal box body and the plug-in tooling.
  • the plug-in tool is used as a supporting device of the current school instrument to connect to the terminal box when performing field testing. According to the different inspection tasks, there are two types of test tools and meter changing tools.
  • the above-mentioned junction box may be a three-phase four-wire combined junction box.
  • the above-mentioned junction box may optionally refer to a commonly used FJ6 / DFY1 three-phase four-wire voltage and current combined junction box, in addition to satisfying the detection and meter replacement functions.
  • its shell size can be completely replaced with the original junction box.
  • It is provided with three groups of current terminal blocks 17 and four groups of voltage terminal blocks 18.
  • Each group of current terminal blocks 17 includes three current terminal blocks 36 arranged side by side. The current terminal blocks 36 are used for circuit connection, and the current terminal blocks are connected.
  • 36 is a copper bar;
  • each group of voltage connection terminals 18 includes at least one voltage connection sub-terminal 37 for connecting the circuit, and the voltage connection sub-terminal 37 is a copper bar.
  • grids 1, 5, 9, and 13 are voltage wiring sub-terminals 37 (where grids 1, 5, 9, and 13 are respectively first voltage wiring sub-terminal 1, second voltage wiring sub-terminal 5, and third Voltage wiring sub-terminal 9, fourth voltage wiring sub-terminal 13), grids 2-4, 6-8, and 10-12 are current wiring sub-terminals 36 (of which grids 2-4, 6-8, and 10-12)
  • the voltage switch 20 is disposed on the voltage wiring sub-terminals 37 in the first, fifth, nineth, and thirteenth compartments, so that the upper and lower ends of the voltage wiring sub-terminal 37 communicate with each other.
  • a voltage connection contact 23 is provided on the lower side.
  • the detection switch 19 is respectively set between the second and third grids, the sixth and seventh grids, and the ten and eleven grids, so that the adjacent second and third grids, the sixth and seventh grids, and the ten and eleven grids are connected left and right, and, Meter change switches 21 are set between grids 3 and 4, grids 7 and 8, and grids 11 and 12, respectively.
  • Meter change switches 21 can make adjacent grids 3 and 4, grids 7 and 8, and grids 11 and 12 Connection; the second and third grids, the 6 and 7, the 10 and 11 grids are respectively provided with a current connection contact 22, the current connection contact 22 is provided between the detection switch 19 and the meter change switch 21.
  • first”, “second”, “third” and the like are used only to distinguish descriptions, and cannot be understood to indicate or imply relative importance.
  • the names “first voltage wiring sub-terminal” to “fourth voltage wiring sub-terminal” involved in the embodiments of the present invention are only used to distinguish between different voltage wiring sub-terminals.
  • the components in FIG. 2 may be 5 is referred to as “first voltage connection terminal”, and component 1 in Fig. 2 is referred to as "second voltage connection terminal”; the names referred to in the embodiment of the present invention are “first current connection sub-terminal” to "ninth current”
  • the “wiring sub-terminal” is only used to distinguish between different current wiring sub-terminals.
  • first current wiring sub-terminals and “second current Wiring sub-terminal “and” third current wiring sub-terminal ", and components 2, 3 and 4 in Fig. 2 are referred to as” fourth current wiring sub-terminal ",” fifth current wiring sub-terminal “and” sixth Current wiring sub-terminals ".
  • the base cover 15 and the base 14 are connected by a snap connection.
  • four corners of the open side of the base cover 15 are provided with buckles, and four corners of the upper side of the base 14 are provided with card slots. The buckle and the card slot are opposite to each other.
  • the body of the test fixture 29 includes a test fixture base plate 38.
  • the upper side of the test fixture base plate 38 is provided with a detection button 31, a current test hole 32, and a voltage test hole 33.
  • Four test tooling sockets 39 are uniformly arranged at the four corners of the tooling base plate 38.
  • the detection button 31 is opposite to the detection switch passage hole 24, and the detection button 31 is in contact with the button of the detection switch 19 through the detection switch passage hole 24.
  • the current test hole 32 is opposite to the current connection contact through hole 26, the voltage test hole 33 is opposite to the voltage connection contact through hole 28; the test tooling plug post 39 is vertically arranged on the lower side of the base plate, and the upper side of the base cover 15 Four plug-in grooves 40 are provided.
  • the plug-in grooves 40 are opposite to the test tool plug posts 39, and the body of the test tool 29 is plugged into the base cover 15.
  • the test tool base plate 38 is provided with a detection button light hole 41, the detection button 31 is penetrated in the detection button light hole 41, and the lower end of the detection button 31 is in contact with the button of the detection switch 19.
  • the detection button 31 is disposed perpendicular to the test tool base plate 38.
  • the detection button 31 is a push-type button and is made of an insulating material.
  • a current connector is penetrated in the current test hole 32, and a first ring-shaped protrusion is provided at the upper end of the current connector to connect with the current test line of the current calibration instrument; the lower end of the current connector is provided
  • a first cylindrical protrusion is inserted into the current connection contact passage hole 26 and connected to the current connection contact 22.
  • the current connection member is disposed perpendicular to the test fixture base plate 38.
  • the first annular protrusion and the first cylindrical protrusion are connected or made integrally to form a current connection member.
  • the first cylindrical protrusion and the first annular protrusion are made of a conductive material, and may be a metal conductive material.
  • An insulating material is laid on the outer side wall of the first annular protrusion.
  • a voltage connector is penetrated in the voltage test hole 33, and a second ring-shaped protrusion is provided on the upper end of the voltage connector to connect with the voltage test line of the current calibration instrument; the lower end of the voltage connector is provided
  • a second cylindrical protrusion is inserted into the voltage connection contact passage hole 28 and connected to the voltage connection contact 23.
  • the voltage connection member is disposed perpendicular to the test tool base plate 38.
  • the second annular protrusion and the second cylindrical protrusion are connected or made integrally to form a current connector.
  • the second cylindrical protrusion and the second annular protrusion are made of a conductive material, and may be a metal conductive material.
  • An insulating material is laid on the outer side wall of the second annular protrusion.
  • test fixture base plate 38 may be a square plate and made of an insulating material.
  • a test fixture handle can also be provided on the two opposite sides of the square plate, and the test fixture handle is connected to the test fixture plug post 39 to facilitate the disassembly of the body of the test fixture 29.
  • the current calibration instrument can be seamlessly connected to the test loop; the meter change switch is used to replace the energy meter, and it can short circuit the circuit.
  • the above-mentioned combination switch mode switching circuit is convenient for standardized operation and improved work efficiency.
  • the detection switch and meter change switch are multi-contact path switches, which can effectively optimize the way of crimping the conductor, increase the live contact area, and reduce The applicable frequency of the screw can effectively prevent the internal circuit of the junction box from being unable to be switched due to the damage of the screw end; and the above switch is completely isolated from the circuit, the operator does not need to be powered on, and the switch operation is simple and easy, avoiding the staff Live work improves safety.
  • the body of the meter changing tool 30 is inserted on the upper side of the bottom surface of the base cover 15.
  • the body of the meter changing tool 30 includes a meter changing tool base plate 42, which is disposed on the meter changing tool base plate 42.
  • the pin light holes 34 and the meter changing switch pass hole 25 are opposite to each other.
  • the voltage button 35 is opposite to the voltage switch through hole 27 and is in contact with the button of the voltage switch 20; the meter changing tool inserting column 43 is vertically arranged on the lower side of the meter changing tool bottom plate 42, and the upper side of the base cover 15 is provided with four The insertion slot 40 is disposed opposite to the meter changing tool insertion post 43 so that the body of the test tool 29 is inserted into the base cover 15.
  • a voltage button light hole 44 is provided on the meter changing tool bottom plate 42, the voltage button 35 is penetrated in the voltage button light hole 44, and the lower end of the voltage button 35 is in contact with the button of the voltage switch 20.
  • the voltage button 35 is disposed perpendicularly to the meter changing tool bottom plate 42.
  • the meter changing tool bottom plate 42 is a square plate made of insulating material.
  • a meter-changing tooling handle can also be provided on the two opposite sides of the square plate, and the meter-changing tooling handle is connected to the meter-changing tooling inserting post 43 to facilitate the removal of the meter-changing tooling 30 body.
  • the voltage switch and meter change switch are multi-contact path switches, which can effectively optimize the way of crimping the conductor, increase the live contact area, and reduce
  • the applicable frequency of the screw can effectively prevent the internal circuit of the junction box from being unable to be switched due to the damage of the screw end; and the above switch is completely isolated from the circuit, the operator does not need to be powered on, and the switch operation is simple and easy, avoiding the staff Live work improves safety.
  • this embodiment provides a current detection switch structure, which includes a base 14 and a detection switch 19, wherein a current connection terminal 17 is provided on the base 14,
  • the current connection terminal 17 includes three current connection sub-terminals 36 arranged side by side, and the detection switch 19 is disposed between one of the two adjacent current connection sub-terminals 36 so that the adjacent two current connection sub-terminals 36 are opened or closed.
  • the lower part of one side of the detection switch 19 is provided with two detection switch connection grooves 45 side by side, and the two detection switch connection grooves 45 are connected to the current wiring sub-terminal 36.
  • the upper side of the detection switch 19 is provided with a detection switch button 46. Way to control the opening or closing between the two detection switch connection grooves 45.
  • the current detection switch structure further includes a base cover 15.
  • the base cover 15 is an open box body, the open side of which is connected to the base 14 and closed; the detection switch 19 is embedded on the inner bottom surface of the base cover 15.
  • a groove is formed on the inner bottom surface of the base cover 15, and the groove is opposite to the detection switch 19 so that the detection switch 19 is embedded in the groove.
  • a light hole is provided on the bottom surface of the groove. The light hole is opposite to the detection switch button 46, and the detection switch button 46 is penetrated in the light hole.
  • the detection switch 19 has a square structure.
  • the groove is a square structure provided opposite to the detection switch 19.
  • the detection switch button 46 has a cylindrical structure.
  • the light hole is a circular light hole provided opposite to the detection switch button 46.
  • the connecting groove 45 is an arc-shaped groove.
  • the current wiring sub-terminal 36 is provided with a connection hole, and the detection switch connection groove 45 and the connection hole are connected by bolts or screws.
  • a voltage detection switch on the current terminal reduces the use of bolts and avoids the failure of bolts caused by repeated loosening or tightening of bolts during voltage detection, resulting in the terminal box not working properly.
  • the current detection switch avoids repeated operation of the bolt, which greatly improves the service life of the current detection switch and the service life of the junction box.
  • pressing the current detection switch is isolated from the circuit, thereby preventing testers from working on power. Situation, thereby improving security.
  • this embodiment provides a voltage detection switch structure, which includes a base 14 and a voltage switch 20, wherein the base 14 is provided with a voltage connection terminal 18, The voltage switch 20 is disposed on the voltage connection terminal 18 so that the circuit of the voltage connection terminal 18 is opened or closed.
  • the lower portions of the opposite sides of the voltage switch 20 are respectively provided with a voltage switch connection groove 47 and two voltage switch connection grooves 47. It is connected to the current connection terminal 17; a voltage switch button 48 is provided on the upper side of the voltage switch 20, and it is controlled to open or close between the two voltage switch connection grooves 47 by pressing.
  • the voltage detection switch structure further includes a base cover 15.
  • the base cover 15 is an open box body, the open side of which is connected to the base 14 and closed; the voltage switch 20 is embedded on the inner bottom surface of the base cover 15.
  • a groove is formed on the inner bottom surface of the base cover 15, and the groove is opposite to the voltage switch 20 so that the voltage switch 20 is embedded in the groove.
  • a light hole is provided on the bottom surface of the groove. The light hole is opposite to the voltage switch button 48, and the voltage switch button 48 is penetrated in the light hole.
  • the voltage switch 20 has a square structure.
  • the groove is a square structure provided opposite the voltage switch 20.
  • the voltage switch button 48 has a cylindrical structure.
  • the light hole is a circular light hole provided opposite to the voltage switch button 48.
  • the voltage switch connection groove 47 is an arc-shaped groove.
  • the voltage connection terminal 18 is provided with a connection hole, and the voltage switch connection groove 47 and the connection hole are connected by bolts or screws.
  • a voltage detection switch on the voltage terminal reduces the use of bolts and avoids the failure of bolts caused by repeated loosening or tightening of bolts during voltage detection, resulting in the terminal box not working properly.
  • the voltage detection switch avoids the repeated operation of the bolt, which greatly improves the service life of the voltage detection switch and the service life of the junction box; at the same time, pressing the voltage detection switch is isolated from the circuit, thereby avoiding the tester's live work. Situation, thereby improving security.
  • the box cover 16, the base 14, and the base cover 15 in the above embodiments are made of transparent plastic.
  • the detection switch 19 is a normally-closed push switch, which may be a three-contact switch.
  • the voltage switch 20 is a normally closed push switch, which may be a single-contact switch.
  • the meter change switch 21 is a normally open plug-in switch. By inserting the pin 49 in the jack of the meter change switch 21, the meter change switch 21 is opened or closed.
  • junction box shell in the embodiment of the present invention is made of transparent material, which is convenient for timely finding hidden dangers at the connection points inside the junction box, can be processed in time, and the junction box is physically isolated, avoiding the danger of live work. .
  • the junction box is connected with a card, which greatly improves the connection reliability of the junction box.
  • the above-mentioned box cover 16, base 14 and base cover 15 can be made of high-molecular polycarbonate material and ABS flame retardant plastic to make a transparent shell, so that the staff can visually observe the connection of the copper bar and observe the internal Whether there are any abnormalities in the conditions of parts, contacts, etc., and whether the metal components are rusted, so that the internal situation of the junction box can be seen at a glance.
  • the transparent upper cover and the base are reliably and hard-connected through multiple sets of buckles. The transparent casing can be observed, and the appearance of the casing will also leave obvious signs of damage.
  • a current switch and a voltage switch are provided: For the current circuit switching, two types of combination switches, detection and meter change, are set to replace the detection paddles and The paddles for meter changing, and the overcurrent capability of the switch fully meets the needs of actual work, ensuring that the test circuit is reliable and smooth; for the switching of the voltage circuit, a voltage circuit switch is set.
  • Current detection switch This switch is normally closed in the normal working state. When the current calibration instrument is connected for testing, the circuit is disconnected by triggering the ⁇ button on each phase, so that the current calibration instrument is connected to the test circuit.
  • the multi-contact path inside the switch not only meets the needs of the load in the working environment, but also can reliably connect and realize the circuit on and off.
  • Voltage detection switch This switch is normally closed in the normal working state. When the meter change is performed, the voltage circuit is disconnected by triggering the ⁇ button on it. When the three-phase meter change switches are shorted , You can perform the table change operation.
  • the above meter replacement tool and test tool are used as supporting equipment for the on-site calibration equipment.
  • the meter inspection tool and the meter replacement tool are set.
  • insert the voltage and current test leads into the test fixture in advance as required, and then clamp the test fixture into the positioning slot on the junction box, and sequentially operate the preset three-phase switch push button or pin switch on the fixture. It can realize meter-checking and meter-changing phase-by-phase operation.
  • there is also a three-phase simultaneous operation method which greatly improves the safety and efficiency of field testing.
  • test current hole position and “test voltage hole position” of the meter test fixture
  • test fixture When testing, first insert the current and voltage test leads of the on-site calibration equipment into the "test current hole position" and “test voltage hole position” of the meter test fixture, and then snap the test fixture into the junction box to fix the In the slot, when it is reliably connected to the junction box, the tooling is automatically locked.
  • the detection button is operated phase by phase.
  • the current path will be disconnected phase by phase, and the external connection wires will be correspondingly Phase by phase into the test circuit, and finally the current calibration instrument is fully connected into the test circuit; or before it is snapped into the fixed slot of the junction box, the three-phase current corresponding buttons are pressed down and then inserted into the wiring
  • the box is fixed in the slot, and the tooling is automatically locked after the installation.
  • the three-phase circuit is cut off at the same time, and the external test line is connected to the test circuit at one time.
  • the meter changing test fixture When performing the meter changing operation, the meter changing test fixture is snapped into a fixed slot on the junction box. When the meter is reliably connected to the junction box, the fixture is automatically locked. Press the ⁇ button on the meter changing tool one by one to disconnect the voltage path in the circuit, insert the pins in order, and short the current loop, and then the meter removal operation can be performed.
  • this implementation manner provides a combined junction box for power measurement with a test tool.
  • the combined junction box is multifunctional and includes: a base 14 and a base cover 15 And test tool 29, among which, the current terminal 17 and the voltage terminal 18 are provided on the base 14, the detection switch 19 is provided on the current terminal 17, and the current connection 17 is also provided with a current connection for connecting with the current school instrument.
  • the voltage connection terminal 18 is provided with a voltage connection column for connecting with the current school instrument;
  • the base cover 15 is an open box body, and the open side is connected to the base 14 to be closed; a detection switch is provided on the bottom surface of the base cover 15 to pass Hole 24.
  • the detection switch passes through the hole 24 and is opposite to the button of the detection switch so that the button of the detection switch 19 passes.
  • the bottom surface of the base cover 15 is also provided with a current connection post passing hole, which is opposite to the current connection post. It is arranged so that the current connection post passes; the bottom surface of the base cover 15 is provided with a voltage connection post passing hole, and the voltage connection post is connected with the voltage via the hole.
  • the connection posts are oppositely arranged so that the voltage connection posts pass through.
  • the test fixture 29 includes a test fixture base plate 38.
  • the upper side of the test fixture base plate 38 is provided with a detection button 31, a current test column, a voltage test column, and four corners of the test fixture base plate 38. There are four test fixture test fixture plug posts 39 evenly arranged.
  • the detection button 31 is opposite to the detection switch passage hole 24, and the detection button 31 is in contact with the detection switch button through the detection switch passage hole 24;
  • the current connection post is oppositely arranged through the hole, and the lower end of the current test post is pluggable and connected to the current connection post, and the other end is pluggably connected to the current test line of the current calibration instrument.
  • test column 39 is vertically arranged on the lower side of the test tool base plate 38 and the upper part of the base cover 15
  • plug-in slots 40 are provided on the side, and the plug-in slots 40 are opposite to the test tool plug posts 39, and the test tool plug posts 39 are inserted into the plug-in slots 40 So that the test fixture 29 with the base 15 of the cover plug.
  • a current test hole 32 is provided on the test fixture base plate 38, and a current test post is inserted through the current test hole 32.
  • the upper end of the current test column is provided with a current calibration groove for the current calibration instrument, and the current test line of the current calibration instrument is inserted in the current connection groove of the current calibration instrument; the lower end of the current test column is provided with a current connection pillar groove and the current connection pillar Inserted in the groove of the current connection post.
  • the current calibration instrument is connected to the current groove and the current connection column groove, and a current test column is arranged along the center axis direction of the current test column to perpendicularly intersect with the test fixture base plate 38.
  • the current test column can be a hollow metal conductive tube.
  • the test tool base plate 38 is provided with a voltage test hole 33, and a voltage test post is disposed in the voltage test hole 33.
  • the upper end of the voltage test column is provided with a current calibration voltage connection groove, and the voltage test line of the current calibration instrument is inserted in the current calibration voltage connection groove; the lower end of the voltage test column is provided with a voltage connection column groove and the voltage connection column. Inserted in the groove of the voltage connection post.
  • the current calibration instrument connection voltage groove and voltage connection column groove are opened along the center axis direction of the voltage test column.
  • the voltage test column and the test fixture base plate 38 intersect perpendicularly.
  • the current test column can be a hollow metal conductive tube.
  • the above-mentioned current test post is provided in the same position as the current connection contact 22, and the current test post can be made integrally with the current connection terminal 17, or it can be a separate metal connection post connected to the current connection terminal 17; voltage The test post is provided at the same position as the voltage connection contact 23.
  • the voltage test post can be made integrally with the voltage connection terminal 18, or it can be a separate metal connection post connected to the voltage connection terminal 18.
  • this embodiment provides a combined junction box for electric energy measurement with a meter changing tool, which includes: a base 14, a base cover 15, and a meter changing tool 30.
  • the base 14 is provided with a current terminal 17 and a voltage terminal 18, and the current terminal 17 is provided with a plug-in meter switch 21, and the meter switch 21 is provided with a pin hole;
  • the voltage terminal 18 is provided with a voltage Switch 20;
  • the base cover 15 is an open box body, the open side of which is connected to the base 14 and closed;
  • the bottom surface of the base cover 15 is provided with a meter-changing switch passage hole 25, and the meter-changing switch passage hole 25 is opposite to the pin hole;
  • a voltage switch passage hole 27 is also provided on the bottom surface of the base cover 15, and the voltage switch passage hole 27 is opposite to the button of the voltage switch 20 so that the button of the voltage switch 20 passes;
  • the meter changing tool 30 is inserted on the bottom surface of the base cover 15.
  • the meter changing tool 30 includes a meter changing tool base 42.
  • Pins 49, pin light holes 34 and voltage buttons 35 are provided on the meter changing tool base 42.
  • Four corners of the meter changing tool base 42 are evenly arranged with four The meter changing tool inserting post 43, wherein the pin light hole 34 is opposite to the meter switch switch through hole 25, the pin through the pin light hole 34 and the meter switch switch through hole 25 are inserted in the pin hole to Make the meter change switch closed;
  • the voltage button 35 is opposite to the voltage switch through hole 27 and is in contact with the button of the voltage switch 20;
  • the meter change tool inserting column 43 is vertically arranged below the meter change tool bottom plate 42 and the base cover 15
  • Four plug-in slots 40 are provided on the upper side, and the plug-in slots 40 are opposite to the meter-changing tooling plug-in posts 43 so that the test tooling 30 is plugged into the base cover 15.
  • this implementation manner provides a current detection switch structure for a combined junction box for electric energy measurement, including: a base 14, a base cover 15, and a detection switch 19, wherein the base 14 And detection switch 19, wherein a current connection terminal 17 is provided on the base 14, the current connection terminal 17 includes three current connection sub-terminals 36 arranged side by side, and the detection switch 19 is provided in one of two adjacent current connection sub-terminals 36 So that two adjacent current connection sub-terminals 36 are opened or closed; two detection switch connection grooves 45 are arranged side by side at the lower part of one side of the detection switch 19, and the two detection switch connection grooves 45 are connected to the current connection sub-terminals 36; A detection switch button 46 is provided on the upper side of the detection switch 19 to control the opening or closing between the two detection switch connection grooves 45 by pressing.
  • the base cover 15 is an open box body, the open side of which is connected to the base 14 and closed; a detection switch passage hole 24 is provided on the bottom surface of the base cover 15, and the detection switch passage hole 24 is opposite to the detection switch button 46. It is set so that the detection switch button 46 passes.
  • the detection switch button 46 can control the detection switch 19 after passing through the detection switch through the hole 24, which greatly improves the convenience of the detection switch 19.
  • the detection switch 19 is set on the base 14 through the base cover 15. The cavity formed closed with the base cover 15 also greatly guarantees the safety performance of personnel when operating the detection switch.
  • the use of a voltage detection switch on the current terminal reduces the use of bolts and avoids the failure of bolts caused by repeated loosening or tightening of bolts during voltage detection, resulting in the terminal box not working properly.
  • the detection switch avoids repeated operation of the bolt, which greatly improves the service life of the current detection switch and the service life of the junction box; at the same time, the current detection switch is isolated from the circuit, thereby avoiding the situation where the tester is carrying out live work. , Which improves security.
  • this implementation manner provides a voltage detection switch structure including a base 14, a base cover 15, and a voltage switch 20, wherein a voltage connection terminal 18 is provided on the base 14.
  • the voltage switch 20 is disposed on the voltage connection terminal 18, so that the circuit of the voltage connection terminal 18 is opened or closed; a lower portion of the opposite sides of the voltage switch 20 is provided with a voltage switch connection groove 47, and two voltage switch connection grooves 47 is connected to the current connection terminal 17; a voltage switch button 48 is provided on the upper side of the voltage switch 20, and the two voltage switch connection grooves 47 are controlled to open or close by pressing.
  • the base cover 15 is an open box body. The open side of the base cover 15 is connected to the base 14 and closed to form a cavity.
  • the bottom surface of the base cover 15 is also provided with a voltage switch passage hole 27.
  • the voltage switch passage hole 27 and the voltage switch button 48 Relatively arranged so that the voltage switch button 48 passes.
  • the base 14 and the base cover 15 are closed to form a cavity, and the voltage switch 20 is placed in the cavity.
  • the voltage switch button 48 is exposed through the voltage switch through the hole 27 to facilitate the operation of the voltage switch 20, and
  • the voltage switch 20 is in a completely isolated state, which greatly improves the safety performance of the voltage switch 20.
  • the use of a voltage detection switch on the voltage terminal reduces the use of bolts and avoids the failure of bolts caused by repeated loosening or tightening of bolts during voltage detection, resulting in the terminal box not working properly.
  • the detection switch avoids repeated operation of the bolt, which greatly improves the service life of the voltage detection switch and the service life of the junction box; at the same time, the voltage detection switch is isolated from the circuit, thereby avoiding the situation of testers working live. , Which improves security.
  • this article sets the detection switch, voltage switch, and meter change switch, and fixes the detection switch, voltage switch, and meter change switch on the terminal in the base, that is, the copper bar in the base.
  • the detection switch and voltage switch can switch the current and voltage circuits when checking the meter, and seamlessly connect the current calibration instrument to the test circuit; the meter change switch is used when replacing the energy meter, and it can short circuit the circuit.
  • the above-mentioned combined switch mode switching circuit is convenient for standardized operation and improved work efficiency.
  • the detection switch, voltage switch and meter change switch are multi-contact path switches, which can effectively optimize the way of crimping the conductor and increase the live contact area.
  • the testing tool and the meter changing tool are set up, and the testing tool and the meter changing tool are connected to the base cover by plugging in.
  • the test line connects the testing tool and the meter changing tool to the junction box by plugging and unplugging.
  • the tooling is sequentially inserted into the junction box, and the switches on the tooling are controlled to achieve the predetermined function.
  • the operation process is safe and reliable, which effectively improves the work efficiency.
  • the junction box in this article is made of transparent materials, which is convenient for timely finding hidden dangers at the connection points inside the junction box, can be handled in time, and the junction box is physically isolated to avoid the danger of live work.
  • junction box in this article is connected by a card, which greatly improves the connection reliability of the junction box.

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Abstract

一种电能计量用联合接线盒，包括：底座（14）、底座盖（15）和插拔式工装，底座（14）上设置有电流接线端子（17）和电压接线端子（18），电流接线端子（17）上设置有检测开关（19）和换表开关（21），电流接线端子（17）上还设置有配置为与现场校验仪连接的电流连接触点（22）；所述电压接线端子（18）上设置有电压开关（20），电压接线端子（18）上还设置有配置为与所述现场校验仪连接的电压连接触点（23）。

Description

电能计量用联合接线盒
本公开要求在2018年08月30日提交中国专利局、申请号为201811004699.3的中国专利申请的优先权，以上申请的全部内容通过引用结合在本公开中。
技术领域
本文涉及联合接线盒技术领域，例如涉及一种电能计量用联合接线盒。
背景技术
目前，电能计量用联合接线盒是计量二次回路的重要组成部分，其作用是将互感器引出的二次线经联合接线盒端的端子串并联后再接到电能表端子上，通过改变接线盒上拨片的位置从而改变测试回路的通断状态，为计量装置的带负荷现场校验、用电检查及更换电能表提供必要条件。
但现有电能计量用联合接线盒在使用过程中存在着以下问题：一般工作状态时，接线盒内电压拨片处于导通状态，电流拨片处于上通下断状态。为了实现用户现场带负荷更换电能表的操作，需要将电压拨片断开、电流拨片短接，待换表工作结束后再将电压、电流拨片恢复到原来的状态。但由于操作的不规范，会出现电压、电流拨片未可靠恢复的现象，造成电量的漏记、错记。其次，由于拨片是通过螺钉与接线盒内的铜排直接连接的，故拨片本身是带电的，当工作人员对拨片进行操作时，便是带电作业，给安全生产带来了隐患。最后，进行电能表检测，电压、电流测试线连入接线盒时，需要对接线盒内三相多组螺钉分别进行操作，这种操作一方面耗时、费力，另一方面，由于每次检表、换表的拆装均会对螺钉端部造成磨损，最终导致螺钉失效，此外，松紧螺钉时，由于操作的不规范，还会伴有螺钉从接线盒上脱离的风险。
因此，急需一种接线盒解决上述问题。
发明内容
本文提出了一种电能计量用联合接线盒，旨在解决提高工作效率降低劳动强度的问题。
本文提出了一种电能计量用联合接线盒，包括：底座、底座盖和插拔式工装，其中，所述底座上设置有电流接线端子和电压接线端子，所述电流接线端子上设置有检测开关和换表开关，所述电流接线端子上还设置有配置为与现场校验仪连接的电流连接触点；所述电压接线端子上设置有电压开关，所述电压接线端子上还设置有配置为与所述现场校验仪连接的电压连接触点；所述底座盖为一开口盒体，所述底座盖的开口侧与所述底座相连接闭合；所述底座盖的底面上设置有检测开关通过孔，所述检测开关通过孔与所述检测开关的按钮相对设置，以使得所述检测开关的按钮通过；所述底座盖的底面上还设置有换表开关通过孔，所述换表开关通过孔与所述换表开关的插针孔相对设置，以使得所述换表开关的插针通过；所述底座盖的底面上还设置有电流连接触点通过孔，所述电流连接触点通过孔与所述电流连接触点相对设置，以使得所述现场校验仪的电流连接端通过；所述底座盖的底面上还设置有电压开关通过孔，所述电压开关通过孔与所述电压开关的按钮相对设置，以使得所述电压开关的按钮通过；所述底座盖的底面上还设置有电压连接触点通过孔，所述电压连接触点通过孔与所述电压连接触点相对设置，以使得所述现场校验仪的电压连接端通过；所述插拔式工装插设在所述底座盖底面的上侧，所述插拔式工装上包括测试工装和换表工装；所述测试工装上设置有检测按钮、电流测试孔和电压测试孔，所述检测按钮与检测开关通过孔相对设置，并与所述检测开关的按钮接触，所述电流测试孔与所述电流连接触点通过孔相对设置，所述电压测试孔与所述电压连接触点通过孔相对设置；所述换表工装上设置有插针光孔和电压按钮，所 述插针光孔与所述换表开关通过孔相对设置，所述电压按钮与所述电压开关通过孔相对设置，并与所述电压开关的按钮接触。
附图说明
通过阅读下文可选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的，而并不认为是对本文的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本发明实施例提供的接线盒结构图；
图2为本发明实施例提供的接线盒底座俯视图；
图3为本发明实施例提供的接线盒底座和底座盖连接示意图；
图4为本发明实施例提供的检测工装立体图；
图5为本发明实施例提供的换表工装立体图；
图6为本发明实施例提供的检测开关立体图；
图7为本发明实施例提供的电压开关立体图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。需要说明的是，在不冲突的情况下，本文中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本文。
结合图1-3所示，本发明实施例提供了一种电能计量用接线盒，包括：盒盖16、底座14、底座盖15和插拔式工装，其中，底座14上设置有电流接线端子17和电压接线端子18，电流接线端子17上设置有检测开关19(例如：按动式 的检测开关)和换表开关21(例如：插拔式的换表开关)，电流接线端子17上还设置有配置为与现场校验仪(下文中简称为现校仪)连接的电流连接触点22；电压接线端子18上设置有电压开关20(例如：按动式的电压开关)，电压接线端子18上还设置有配置为与现校仪连接的电压连接触点23。
需要说明的是，所述电流接线端子17是指接线盒上电流线的接线端，电流接线端子17用于压接电流导线；所述电压接线端子18是指接线盒上电压线的接线端，电压接线端子18用于压接电压导线。
具体而言，底座盖15为一开口盒体，底座盖15与底座14的横截面大小相同，底座盖15的开口侧与底座14相连接闭合，内部形成一空腔，以放置相应的元器件。
具体而言，底座盖15的底面上设置有检测开关通过孔24，检测开关通过孔24与检测开关19的按钮相对设置，以使得检测开关19的按钮通过；底座盖15的底面上还设置有换表开关通过孔25，换表开关通过孔25与换表开关21的插针孔相对设置，以使得换表开关21的插针49通过；底座盖15的底面上还设置有电流连接触点通过孔26，电流连接触点通过孔26与电流连接触点22相对设置，以使得现校仪的电流连接端通过；底座盖15的底面上还设置有电压开关通过孔27，电压开关通过孔27与电压开关20的按钮相对设置，以使得电压开关20的按钮通过；底座盖15的底面上还设置有电压连接触点通过孔28，电压连接触点通过孔28与电压连接触点23相对设置，以使得现校仪的电压连接端通过。
具体而言，盒盖16为一开口的盒体，盖设在底座盖15上侧，盒盖16、底座14和底座盖15依次排列设置，三者连接形成一闭合的盒体；盒盖16相对的底面相对两侧开设有第一连接孔，底座盖15底面相对的两侧开设有第二连接孔，第一连接孔和第二连接孔相对设置，通过螺栓或螺钉将盒盖16和底座盖15连接为一体。
具体而言，插拔式工装插设在底座盖15底面的上侧，插拔式工装上包括测试工装29和换表工装30；测试工装29上设置有检测按钮31、电流测试孔32和电压测试孔33，检测按钮31与检测开关通过孔24相对设置，并与检测开关19的按钮接触，电流测试孔32与电流连接触点通过孔26相对设置，电压测试孔33与电压连接触点通过孔28相对设置；换表工装30上设置有插针光孔34和电压按钮35，插针光孔34与换表开关通过孔25相对设置，电压按钮35与电 压开关通过孔27相对设置，并与电压开关20的按钮接触。插针49设置在插针光孔34内。
可以理解的是，通过设置检测开关和电压开关，以及换表开关，并将检测开关、电压开关和换表开关固定在底座中的接线端子上，即底座内的铜排上，其中，检测开关、电压开关在检表时可切换电流和电压回路，将现校仪无缝接入测试回路中；换表开关用于更换换电能表时使用，可对电路进行短路操作。采用上述组合开关方式切换电路，便于规范操作，提高工作效率；同时，检测开关、电压开关和换表开关为多触点通路开关，能够有效的优化压接导线的方式，增大带电接触面积，并减少了螺钉的适用频率，能够有效地防止螺钉端损坏而造成的接线盒的内部线路无法切换；并且上述开关与电路完全隔离，操作人员无需带电作业，且开关的操作简单易行，避免了工作人员无带电作业，提高了安全性。通过设置检测工装、换表工装，并通过插接的方式将检测工装、换表工装于底座盖连接，测试线通过插拔的方式将检测工装、换表工装与接线盒连接妥当，将工装依次性卡入接线盒，控制工装上的开关实现既定功能，操作过程安全、可靠，有效的提高了工作效率。
在一些实施例中，电流接线端子17包括并排设置的三个电流接线子端子36(例如：图2中的第一电流接线子端子2、第二电流接线子端子3和第三电流接线子端子4)，检测开关19设置在其中一相邻的两电流接线子端子36之间(例如：图2中的第一电流接线子端子2、第二电流接线子端子3之间)，以使得三个所述电流接线子端子36中一相邻的两电流接线子端子36(例如：图2中的第一电流接线子端子2、第二电流接线子端子3)断开或闭合，其中一相邻的两电流接线子端子36(例如：图2中的第一电流接线子端子2、第二电流接线子端子3)上分别设置一电流连接触点22。换表开关21设置在另一相邻的两电流接线子端子36(例如：图2中的第二电流接线子端子3、第三电流接线子端子4)之间，以使得另一相邻的两电流接线子端子36(例如：图2中的第二电流接线子端子3、第三电流接线子端子4)断开或闭合。
在一些实施例中，电压接线端子18包括一电压接线子端子37，电压开关20设置在电压接线子端子37上，电压开关20配置为使电压接线子端子37的进线端和出线端之间连通或断开。电压连接触点23设置在电压接线子端子37上。
可以理解的是，插拔式接线盒主要分为接线盒本体和插拔式工装两个部分，插拔式工装作为现校仪的配套器件在进行现场检测时用于连接到接线盒上。根 据执行检测任务的不同，对应有测试工装和换表工装两种。
在一些实施例中，上述接线盒可以为三相四线联合接线盒，上述接线盒可选的参考了常用的FJ6/DFY1型三相四线电压电流联合接线盒，除满足检测和换表功能外，其外壳尺寸与原接线盒可以做到完全替代。其内部设置有三组电流接线端子17和四组电压接线端子18，每组电流接线端子17包括并排设置的三个电流接线子端子36，电流接线子端子36用以使电路连通，电流接线子端子36即为铜排；每组电压接线端子18包括至少一电压接线子端子37，用以使电路连通，电压接线子端子37即为铜排。
在一些实施例中，三相四线联合接线盒内部设置有13格，如图2所示，其中序号1-13即表示13格的顺序。具体的，第1、5、9和13格为电压接线子端子37(其中，第1、5、9和13格分别为第一电压接线子端子1、第二电压接线子端子5、第三电压接线子端子9、第四电压接线子端子13)，第2-4、6-8、10-12格为电流接线子端子36(其中，第2-4、6-8、10-12格分别为第一电流接线子端子2、第二电流接线子端子3、第三电流接线子端子4、第四电流接线子端子6、第五电流接线子端子7、第六电流接线子端子8、第七电流接线子端子10、第八电流接线子端子11、第九电流接线子端子12)。其中，电压开关20设置在第1、5、9和13格内电压接线子端子37上，使得电压接线子端子37上下两端的进线端和出线端连通，同时在电压开关20的上侧或下侧设置有电压连接触点23。检测开关19分别设置在第2和3格、6和7格、10和11格之间，使得相邻的第2和3格、6和7格、10和11格之间左右连接，并且，第3和4格、7和8格、11和12格之间分别设置有换表开关21，换表开关21可使得相邻的第3和4格、7和8格、11和12格相连接；第2和3格、6和7格、10和11格上分别设置一电流连接触点22，电流连接触点22设置在检测开关19和换表开关21之间。
可理解的是，本文中的术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。本发明实施例中涉及的名称“第一电压接线子端子”至“第四电压接线子端子”仅用于进行不同电压接线子端子之间的区分，示例性的，可以将图2中的部件5称为“第一电压接线端子”，而将图2中的部件1称为“第二电压接线端子”；本发明实施例中涉及的名称“第一电流接线子端子”至“第九电流接线子端子”仅用于进行不同电流接线子端子之间的区分，示例性的，可以将图2中的部件6、7和8分别称为“第一电流接线子端子”、“第二电流接线子端子”和“第三电流接线子端子”，而将图2中的部 件2、3和4分别称为“第四电流接线子端子”、“第五电流接线子端子”和“第六电流接线子端子”。在一些实施例中，底座盖15与底座14通过卡接的方式连接，在一些实施例中，底座盖15开口侧四角的位置设置有卡扣，底座14上侧面四角位置设置有卡槽，卡扣和卡槽相对设置。
结合图4所示，在一些实施例中，上述测试工装29的本体包括一测试工装底板38，测试工装底板38的上侧面上设置有检测按钮31、电流测试孔32、电压测试孔33，测试工装底板38的四角位置均匀的设置有四个测试工装插接柱39，其中，检测按钮31与检测开关通过孔24相对设置，检测按钮31通过检测开关通过孔24与检测开关19的按钮接触，电流测试孔32与电流连接触点通过孔26相对设置，电压测试孔33与电压连接触点通过孔28相对设置；测试工装插接柱39垂直设置在底板的下侧，底座盖15的上侧设置有四个插接槽40，插接槽40与测试工装插接柱39相对设置，测试工装29的本体与底座盖15相插接。
在一些实施例中，测试工装底板38上设置有检测按钮光孔41，检测按钮31穿设在检测按钮光孔41内，检测按钮31下端与检测开关19的按钮接触。检测按钮31与测试工装底板38相垂直设置。检测按钮31为一按动式按钮，由绝缘材料制成。
在一些实施例中，电流测试孔32内穿设有电流连接件，电流连接件的上端设置有第一环状凸起，用于与现校仪的电流测试线连接；电流连接件的下端设置有第一圆柱状凸起，第一圆柱状凸起插设在电流连接触点通过孔26内，与电流连接触点22连接。电流连接件与测试工装底板38相垂直设置。第一环状凸起和第一圆柱状凸起相连接，或一体制成，已组成电流连接件。第一圆柱状凸起和第一环状凸起由导电材料制成，可以为金属导电材料。第一环状凸起外侧壁上敷设由绝缘材料。
在一些实施例中，电压测试孔33内穿设有电压连接件，电压连接件的上端设置有第二环状凸起，用于与现校仪的电压测试线连接；电压连接件的下端设置有第二圆柱状凸起，第二圆柱状凸起插设在电压连接触点通过孔28内，与电压连接触点23连接。电压连接件与测试工装底板38相垂直设置。第二环状凸起和第二圆柱状凸起相连接，或一体制成，已组成电流连接件。第二圆柱状凸起和第二环状凸起由导电材料制成，可以为金属导电材料。第二环状凸起外侧壁上敷设由绝缘材料。
在一些实施例中，测试工装底板38可以为一方形板，并由绝缘材料制成。还可在方形板相对的两侧分别设置一测试工装把手，测试工装把手与测试工装插接柱39连接，以方便拆卸测试工装29的本体。
可以理解的是，通过设置检测开关，以及插针式换表开关，并将检测开关和换表开关固定在底座中的接线端子上，即底座内的铜排上，其中，检测开关在检表时可切换电流回路，将现校仪无缝接入测试回路中；换表开关用于更换换电能表时使用，可对电路进行短路操作。采用上述组合开关方式切换电路，便于规范操作，提高工作效率；同时，检测开关和换表开关为多触点通路开关，能够有效的优化压接导线的方式，增大带电接触面积，并减少了螺钉的适用频率，能够有效地防止螺钉端损坏而造成的接线盒的内部线路无法切换；并且上述开关与电路完全隔离，操作人员无需带电作业，且开关的操作简单易行，避免了工作人员无带电作业，提高了安全性。
结合图5所示，在一些实施例中，换表工装30的本体插设在底座盖15底面的上侧，换表工装30的本体包括一换表工装底板42，换表工装底板42上设置有插针光孔34和电压按钮35，换表工装底板42的四角位置均匀的设置有四个换表工装插接柱43，其中，插针光孔34与换表开关通过孔25相对设置，电压按钮35与电压开关通过孔27相对设置，并与电压开关20的按钮接触；换表工装插接柱43垂直设置在换表工装底板42的下侧，底座盖15的上侧设置有四个插接槽40，插接槽40与换表工装插接柱43相对设置，以使得测试工装29的本体与底座盖15相插接。
在一些实施例中，换表工装底板42上设置有电压按钮光孔44，电压按钮35穿设在电压按钮光孔44内，电压按钮35下端与电压开关20的按钮接触。电压按钮35与换表工装底板42相垂直设置。换表工装底板42为一方形板，由绝缘材料制成。还可在方形板相对的两侧分别设置一换表工装把手，换表工装把手与换表工装插接柱43连接，以方便拆卸换表工装30的本体。
可以理解的是，通过设置电压开关，以及插针式换表开关，并将电压开关和换表开关固定在底座中的接线端子上，即底座内的铜排上，其中，电压开关在换表时可切换电压回路，将现校仪无缝接入测试回路中；换表开关用于更换换电能表时使用，可对电路进行短路操作。采用上述组合开关方式切换电路，便于规范操作，提高工作效率；同时，电压开关和换表开关为多触点通路开关，能够有效的优化压接导线的方式，增大带电接触面积，并减少了螺钉的适用频 率，能够有效地防止螺钉端损坏而造成的接线盒的内部线路无法切换；并且上述开关与电路完全隔离，操作人员无需带电作业，且开关的操作简单易行，避免了工作人员无带电作业，提高了安全性。
基于上述实施例的另一实施方式中，结合图6所示，本实施方式提供了一种电流检测开关结构，包括：底座14和检测开关19，其中，底座14上设置有电流接线端子17，电流接线端子17包括并排设置的三个电流接线子端子36，检测开关19设置在其中一相邻的两电流接线子端子36之间，以使得相邻的两电流接线子端子36断开或闭合；检测开关19一侧面的下部并排设置两检测开关连接凹槽45，两检测开关连接凹槽45与电流接线子端子36连接；检测开关19的上侧面设置一检测开关按钮46，通过按动的方式，以控制两检测开关连接凹槽45之间断开或闭合。
在一些实施例中，电流检测开关结构还包括底座盖15，底座盖15为一开口盒体，其开口侧与底座14相连接闭合；检测开关19嵌设在底座盖15的内底面上。底座盖15的内底面上开设一凹槽，凹槽与检测开关19相对设置，以使得检测开关19嵌设在凹槽内。凹槽的底面上开设一光孔，光孔与检测开关按钮46相对设置，检测开关按钮46穿设在光孔内。
在一些实施例中，检测开关19为一方形结构。凹槽为与检测开关19相对设置的方形结构。检测开关按钮46为圆柱型结构。光孔为与检测开关按钮46相对设置的圆形光孔。连接凹槽45为弧形凹槽。电流接线子端子36上开设有连接孔，检测开关连接凹槽45与连接孔通过螺栓或螺钉连接。
可以理解的是，通过电流接线端子上设置电压检测开关，减少了螺栓的使用，避免了在进行电压检测时重复松动或拧紧螺栓而造成螺栓失效，从而导致接线盒无法正常工作，通过设置按动电流检测开关，避免了螺栓的重复操作，极大地提高了电流检测开关的使用寿命，以及接线盒的使用寿命；同时，按动电流检测开关与电路处于隔离状态，从而避免了测试人员带电作业的情况，从而提高了安全性。
基于上述实施例的另一实施方式中，结合图7所示，本实施方式提供了一种电压检测开关结构，包括：底座14和电压开关20，其中，底座14上设置有电压接线端子18，电压开关20设置在电压接线端子18上，以使得电压接线端子18的电路断开或闭合；电压开关20相对的两侧面的下部分别设置一电压开关连接凹槽47，两电压开关连接凹槽47与电流接线端子17连接；电压开关20 的上侧面设置一电压开关按钮48，通过按动的方式，以控制两电压开关连接凹槽47之间端开或闭合。
在一些实施例中，电压检测开关结构还包括底座盖15，底座盖15为一开口盒体，其开口侧与底座14相连接闭合；电压开关20嵌设在底座盖15的内底面上。底座盖15的内底面上开设一凹槽，凹槽与电压开关20相对设置，以使得电压开关20嵌设在凹槽内。凹槽的底面上开设一光孔，光孔与电压开关按钮48相对设置，电压开关按钮48穿设在光孔内。
在一些实施例中，电压开关20为一方形结构。凹槽为与电压开关20相对设置的方形结构。电压开关按钮48为圆柱型结构。光孔为与电压开关按钮48相对设置的圆形光孔。电压开关连接凹槽47为弧形凹槽。电压接线端子18上开设有连接孔，电压开关连接凹槽47与连接孔通过螺栓或螺钉连接。
可以理解的是，通过电压接线端子上设置电压检测开关，减少了螺栓的使用，避免了在进行电压检测时重复松动或拧紧螺栓而造成螺栓失效，从而导致接线盒无法正常工作，通过设置按动电压检测开关，避免了螺栓的重复操作，极大地提高了电压检测开关的使用寿命，以及接线盒的使用寿命；同时，按动电压检测开关与电路处于隔离状态，从而避免了测试人员带电作业的情况，从而提高了安全性。
在一些实施例中，上述各实施例中的盒盖16、底座14和底座盖15由透明塑料制成。检测开关19为常闭式按动开关，其可以为三触点式开关。电压开关20为常闭式按动开关，其可以为单触点式开关。换表开关21为常开式插拔式开关，通过将插针49插设在换表开关21的插孔内，使得换表开关21断开或闭合。
可以理解的是，本发明实施例中的接线盒外壳采用透明材料制作，便于及时发现接线盒内部连接点处的隐患，能够及时的进行处理，并且接线盒内部物理隔离，避免了带电作业的危险。接线盒采用卡接的方式连接，极大地提高了接线盒的连接可靠性。
上述的盒盖16、底座14和底座盖15可以采用高分子聚碳酸酯材料加ABS阻燃塑料制作，以制成透明的壳体，使得工作人员能够目测到铜排连接情况，观察到内部各零部件、触点位置等状况是否有异常，金属构件是否有锈蚀，从而对接线盒内部情况一目了然；另外，透明上盖和底座通过多组卡扣进行可靠硬连接，如有窃电动作，不仅透明机壳可观察，壳体外观还将留有明显破坏的痕迹。
上述实施例在接线盒内部，通过使用不同类型的开关来取代现有接线盒中的拨片。根据接线盒内部切换电路的实际需要，设置电流切换开关和电压切换开关：对于电流电路的切换，设置了检测和换表两种类型的组合开关分别替换掉原接线盒中的检测用拨片和换表用拨片，且开关的过电流能力完全满足实际工作需要，确保测试回路可靠畅通；对于电压电路的切换，设置了电压电路开关。电流检测开关：该开关一般工作状态下为常闭开关，当接入现校仪进行检测工作时，通过触发每相上的摁钮，将电路断开，从而现校仪被接入到测试回路中，开关内部多触点通路既满足工作环境中负荷的需要，又能可靠搭接实现电路的通断。电压检测开关：该开关一般工作状态下为常闭开关，当进行换表工作时，通过触发其上的摁钮，将电压电路断开，当三相的换表开关均被短接的情况下，可以进行换表操作。
上述换表工装和测试工装作为现场校验设备的配套设备，针对现场检表、换表的工作需要，设置了检表用工装以及换表用工装。使用时，将电压电流测试线按要求预先插到测试工装上，再将测试工装卡到接线盒上的定位槽内，顺序操作工装上预置的三相开关摁钮或是插针式开关，即可实现检表、换表逐相操作，另外还有三相同时操作一次性完成的使用办法，大大提高了现场检测工作的安全、高效性。
进行检测时，首先将现场校验设备的电流、电压测试线插到检表测试工装的“测试电流孔位”和“测试电压孔位”中，然后将该测试工装卡入接线盒上固定的槽位内，当与接线盒可靠连接后，工装实现自动锁紧。
根据现场检测作业要求，边观察每相电流细微变化的情况，同时边对检测摁钮逐相操作，随着摁钮逐个被摁下，电流通路将逐相被断开，外部连接导线相应的被逐相接入到测试回路中，最终将现校仪完全接入测试回路中；亦或是在卡入接线盒固定槽位前，将三相电流对应的摁钮统一摁下，再卡入接线盒固定槽位，安装到位后工装自动锁紧，便将三相电路同时切断，外部测试线一次性接入测试回路中，实现了现校仪的快速接入。进行换表操作时，将换表测试工装卡入接线盒上固定的槽位内，当与接线盒可靠连接后，工装实现自动锁紧。逐相摁下换表工装上的摁钮即可断开线路中的电压通路，依次插入插针，将电流回路短接后，就可进行拆表操作了。
基于上述实施方式的另一种可能的实施方式中，本实施方式提供了一种带有测试工装的电能计量用联合接线盒，所述联合接线盒具有多功能，包括：底 座14、底座盖15和测试工装29，其中，底座14上设置有电流接线端子17和电压接线端子18，电流接线端子17上设置有检测开关19，电流接线端子17上还设置有用于与现校仪连接的电流连接柱；电压接线端子18上设置有用于与现校仪连接的电压连接柱；底座盖15为一开口盒体，其开口侧与底座14相连接闭合；底座盖15的底面上设置有检测开关通过孔24，检测开关通过孔24与检测开关的按钮相对设置，以使得检测开关19的按钮通过；底座盖15的底面上还设置有电流连接柱通过孔，电流连接柱通过孔与电流连接柱相对设置，以使得电流连接柱通过；底座盖15的底面上设置有电压连接柱通过孔，电压连接柱通过孔与电压连接柱相对设置，以使得电压连接柱通过；测试工装29包括一测试工装底板38，测试工装底板38的上侧面上设置有检测按钮31、电流测试柱、电压测试柱，测试工装底板38的四角位置均匀的设置有四个测试工装测试工装插接柱39，其中，检测按钮31与检测开关通过孔24相对设置，检测按钮31通过检测开关通过孔24与检测开关的按钮接触；电流测试柱与电流连接柱通过孔相对设置，电流测试柱的下端与电流连接柱可插拔连接，另一端与现校仪的电流测试线可插拔连接；电压测试孔与电压连接柱通过孔相对设置，电压测试柱的下端与电压连接柱可插拔连接，另一端与现校仪的电压测试线可插拔连接；测试工装插接柱39垂直设置在测试工装底板38的下侧，底座盖15的上侧设置有四个插接槽40，插接槽40与测试工装插接柱39相对设置，测试工装插接柱39插设在插接槽40内，以使得测试工装29与底座盖15相插接。
在一些实施例中，测试工装底板38上设置有电流测试孔32，电流测试柱穿设在电流测试孔32内。电流测试柱的上端开设一现校仪电流连接凹槽，现校仪的电流测试线插设在现校仪电流连接凹槽内；电流测试柱的下端开设一电流连接柱凹槽，电流连接柱插设在电流连接柱凹槽内。现校仪连接电流凹槽和电流连接柱凹槽沿电流测试柱的中轴线方向开设电流测试柱与测试工装底板38垂直相交设置。电流测试柱可以为一中空的金属导电管。
在一些实施例中，测试工装底板38上设置有电压测试孔33，电压测试柱穿设在电压测试孔33内。电压测试柱的上端开设一现校仪电压连接凹槽，现校仪的电压测试线插设在现校仪电压连接凹槽内；电压测试柱的下端开设一电压连接柱凹槽，电压连接柱插设在电压连接柱凹槽内。现校仪连接电压凹槽和电压连接柱凹槽沿电压测试柱的中轴线方向开设。电压测试柱与测试工装底板38垂直相交设置。电流测试柱可以为一中空的金属导电管。
可以理解的是，上述电流测试柱与电流连接触点22设置位置相同，电流测试柱可以与电流接线端子17一体制成，也可以是单独设置的金属连接柱，与电流接线端子17连接；电压测试柱与电压连接触点23设置位置相同，电压测试柱可以与电压接线端子18一体制成，也可以是单独设置的金属连接柱，与电压接线端子18连接。
基于上述实施方式的另一种可能的实施方式中，本实施方式提供了一种带有换表工装的电能计量用联合接线盒，包括：底座14、底座盖15和换表工装30，其中，底座14上设置有电流接线端子17和电压接线端子18，电流接线端子17上设置有插拔式的换表开关21，换表开关21上设置有插针孔；电压接线端子18上设置有电压开关20；底座盖15为一开口盒体，其开口侧与底座14相连接闭合；底座盖15的底面上设置有换表开关通过孔25，换表开关通过孔25与插针孔相对设置；底座盖15的底面上还设置有电压开关通过孔27，电压开关通过孔27与电压开关20的按钮相对设置，以使得电压开关20的按钮通过；换表工装30插设在底座盖15底面的上侧，换表工装30包括一换表工装底板42，换表工装底板42上设置有插针49、插针光孔34和电压按钮35，换表工装底板42的四角位置均匀的设置有四个换表工装插接柱43，其中，插针光孔34与换表开关通过孔25相对设置，插针通过插针光孔34和换表开关通过孔25，插设在插针孔内，以使得换表开关闭合；电压按钮35与电压开关通过孔27相对设置，并与电压开关20的按钮接触；换表工装插接柱43垂直设置在换表工装底板42的下侧，底座盖15的上侧设置有四个插接槽40，插接槽40与换表工装插接柱43相对设置，以使得测试工装30与底座盖15相插接。
可以看出，通过设置电压开关，以及插针式换表开关，并将电压开关和换表开关固定在底座中的接线端子上，即底座内的铜排上，其中，电压开关在换表时可切换电压回路，将现校仪无缝接入测试回路中；换表开关用于更换换电能表时使用，可对电路进行短路操作。采用上述组合开关方式切换电路，便于规范操作，提高工作效率。
基于上述实施方式的另一种可能的实施方式中，本实施方式提供了一种电能计量用联合接线盒用电流检测开关结构，包括：底座14、底座盖15和检测开关19，其中，底座14和检测开关19，其中，底座14上设置有电流接线端子17，电流接线端子17包括并排设置的三个电流接线子端子36，检测开关19设置在其中一相邻的两电流接线子端子36之间，以使得相邻的两电流接线子端子36 断开或闭合；检测开关19一侧面的下部并排设置两检测开关连接凹槽45，两检测开关连接凹槽45与电流接线子端子36连接；检测开关19的上侧面设置一检测开关按钮46，通过按动的方式，以控制两检测开关连接凹槽45之间断开或闭合。底座盖15为一开口盒体，其开口侧与底座14相连接闭合；所述底座盖15的底面上设置有检测开关通过孔24，所述检测开关通过孔24与所述检测开关按钮46相对设置，以使得检测开关按钮46通过。
可以理解的是，检测开关按钮46通过检测开关通过孔24后即可对检测开关19进行控制，极大地提高了检测开关19的便利性，同时通过底座盖15，将检测开关19设置在底座14和底座盖15相闭合形成的空腔内，也极大地保证了人员操作检测开关时的安全性能。
可以看出，通过电流接线端子上设置电压检测开关，减少了螺栓的使用，避免了在进行电压检测时重复松动或拧紧螺栓而造成螺栓失效，从而导致接线盒无法正常工作，通过设置按动电流检测开关，避免了螺栓的重复操作，极大地提高了电流检测开关的使用寿命，以及接线盒的使用寿命；同时，按动电流检测开关与电路处于隔离状态，从而避免了测试人员带电作业的情况，从而提高了安全性。
基于上述实施方式的另一种可能的实施方式中，本实施方式提供了一种电压检测开关结构，包括：底座14、底座盖15和电压开关20，其中，底座14上设置有电压接线端子18，电压开关20设置在电压接线端子18上，以使得电压接线端子18的电路断开或闭合；电压开关20相对的两侧面的下部分别设置一电压开关连接凹槽47，两电压开关连接凹槽47与电流接线端子17连接；电压开关20的上侧面设置一电压开关按钮48，通过按动的方式，以控制两电压开关连接凹槽47之间端开或闭合。底座盖15为一开口盒体，其开口侧与底座14相连接闭合，形成一空腔；底座盖15的底面上还设置有电压开关通过孔27，所述电压开关通过孔27与电压开关按钮48相对设置，以使得电压开关按钮48通过。
可以理解的是，底座14和底座盖15闭合形成一空腔，电压开关20放置在空腔内，电压开关按钮48通过电压开关通过孔27，露出空腔，以便于对电压开关20进行操作，同时电压开关20处于完全隔离的状态，极大提高了电压开关20的安全性能。
可以看出，通过电压接线端子上设置电压检测开关，减少了螺栓的使用，避免了在进行电压检测时重复松动或拧紧螺栓而造成螺栓失效，从而导致接线 盒无法正常工作，通过设置按动电压检测开关，避免了螺栓的重复操作，极大地提高了电压检测开关的使用寿命，以及接线盒的使用寿命；同时，按动电压检测开关与电路处于隔离状态，从而避免了测试人员带电作业的情况，从而提高了安全性。
与相关技术相比，本文通过设置检测开关和电压开关，以及换表开关，并将检测开关、电压开关和换表开关固定在底座中的接线端子上，即底座内的铜排上，其中，检测开关、电压开关在检表时可切换电流和电压回路，将现校仪无缝接入测试回路中；换表开关用于更换换电能表时使用，可对电路进行短路操作。采用上述组合开关方式切换电路，便于规范操作，提高工作效率；同时，检测开关、电压开关和换表开关为多触点通路开关，能够有效的优化压接导线的方式，增大带电接触面积，并减少了螺钉的适用频率，能够有效地防止螺钉端损坏而造成的接线盒的内部线路无法切换；并且上述开关与电路完全隔离，操作人员无需带电作业，且开关的操作简单易行，避免了工作人员无带电作业，提高了安全性。
本文中通过设置检测工装、换表工装，并通过插接的方式将检测工装、换表工装与底座盖连接，测试线通过插拔的方式将检测工装、换表工装与接线盒连接妥当，将工装依次性卡入接线盒，控制工装上的开关实现既定功能，操作过程安全、可靠，有效的提高了工作效率。
本文中的接线盒采用透明材料制作，便于及时发现接线盒内部连接点处的隐患，能够及时的进行处理，并且接线盒内部物理隔离，避免了带电作业的危险。
本文中的接线盒采用卡接的方式连接，极大地提高了接线盒的连接可靠性。

Claims (11)

  1. 一种电能计量用联合接线盒，包括：底座(14)、底座盖(15)和插拔式工装，其中，
    所述底座(14)上设置有电流接线端子(17)和电压接线端子(18)，所述电流接线端子(17)上设置有检测开关(19)和换表开关(21)，所述电流接线端子(17)上还设置有配置为与现场校验仪连接的电流连接触点(22)；所述电压接线端子(18)上设置有电压开关(20)，所述电压接线端子(18)上还设置有配置为与所述现场校验仪连接的电压连接触点(23)；
    所述底座盖(15)为一开口盒体，所述底座盖(15)的开口侧与所述底座(14)相连接闭合；
    所述底座盖(15)的底面上设置有检测开关通过孔(24)，所述检测开关通过孔(24)与所述检测开关(19)的按钮相对设置，以使得所述检测开关(19)的按钮通过；所述底座盖(15)的底面上还设置有换表开关通过孔(25)，所述换表开关通过孔(25)与所述换表开关(21)的插针孔相对设置，以使得所述换表开关(21)的插针(49)通过；所述底座盖(15)的底面上还设置有电流连接触点通过孔(26)，所述电流连接触点通过孔(26)与所述电流连接触点(22)相对设置，以使得所述现场校验仪的电流连接端通过；所述底座盖(15)的底面上还设置有电压开关通过孔(27)，所述电压开关通过孔(27)与所述电压开关(20)的按钮相对设置，以使得所述电压开关(20)的按钮通过；所述底座盖(15)的底面上还设置有电压连接触点通过孔(28)，所述电压连接触点通过孔(28)与所述电压连接触点(23)相对设置，以使得所述现场校验仪的电压连接端通过；
    所述插拔式工装插设在所述底座盖(15)底面的上侧，所述插拔式工装上包括测试工装(29)和换表工装(30)；所述测试工装(29)上设置有检测按钮(31)、电流测试孔(32)和电压测试孔(33)，所述检测按钮(31)与检测开关通过孔(24)相对设置，并与所述检测开关(19)的按钮接触，所述电流测试孔(32)与所述电流连接触点通过孔(26)相对设置，所述电压测试孔(33)与所述电压连接触点通过孔(28)相对设置；所述换表工装(30)上设置有插针光孔(34)和电压按钮(35)，所述插针光孔(34)与所述换表开关通过孔(25)相对设置，所述电压按钮(35)与所述电压开关通过孔(27)相对设置，并与所述电压开关(20)的按钮接触。
  2. 根据权利要求1所述的电能计量用联合接线盒，其中，所述电流接线端 子(17)包括并排设置的三个电流接线子端子(36)，三个所述电流接线子端子(36)包括第一电流接线子端子(2)、第二电流接线子端子(3)和第三电流接线子端子(4)；
    所述检测开关(19)设置在相邻的所述第一电流接线子端子(2)和所述第二电流接线子端子(3)之间，所述检测开关(19)配置为使相邻的所述第一电流接线子端子(2)和所述第二电流接线子端子(3)断开或闭合，所述第一电流接线子端子(2)和所述第二电流接线子端子(3)上分别设置一电流连接触点(22)。
  3. 根据权利要求2所述的电能计量用联合接线盒，其中，所述换表开关(21)设置在相邻的所述第二电流接线子端子(3)和所述第三电流接线子端子(4)之间，所述换表开关(21)配置为使相邻的所述第二电流接线子端子(3)和所述第三电流接线子端子(4)断开或闭合。
  4. 根据权利要求1所述的电能计量用联合接线盒，其中，所述电压接线端子(18)包括一电压接线子端子(37)，所述电压开关(20)设置在所述电压接线子端子(37)上，所述电压开关(20)配置为使所述电压接线子端子(37)的进线端和出线端之间连通或断开。
  5. 根据权利要求4所述的电能计量用联合接线盒，其中，所述电压连接触点(23)设置在所述电压接线子端子(37)上。
  6. 根据权利要求1所述的电能计量用联合接线盒，其中，所述底座盖(15)与所述底座(14)通过卡接的方式连接，所述底座盖(15)开口侧四角的位置设置有卡扣，所述底座(14)上侧面四角位置设置有卡槽，所述卡扣和卡槽相对设置。
  7. 根据权利要求1-6任一项所述的电能计量用联合接线盒，还包括盒盖(16)，所述盒盖(16)为一开口的盒体，盖设在所述底座盖(15)上侧，所述盒盖(16)、底座(14)和底座盖(15)依次连接形成一闭合的盒体。
  8. 根据权利要求7所述的电能计量用联合接线盒，其中，所述盒盖(16)、底座(14)和底座盖(15)由透明塑料制成。
  9. 根据权利要求1-6中任一项所述的电能计量用联合接线盒，其中，所述检测开关(19)为常闭式按动开关。
  10. 根据权利要求1-6中任一项所述的电能计量用联合接线盒，其中，所述电压开关(20)为常闭式按动开关。
  11. 根据权利要求1-6中任一项所述的电能计量用联合接线盒，其中，所述换表开关(21)为常开式插拔式开关。
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