CN112327026A - Novel double-winding double-metering high-voltage combined metering box - Google Patents
Novel double-winding double-metering high-voltage combined metering box Download PDFInfo
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- CN112327026A CN112327026A CN202011199763.5A CN202011199763A CN112327026A CN 112327026 A CN112327026 A CN 112327026A CN 202011199763 A CN202011199763 A CN 202011199763A CN 112327026 A CN112327026 A CN 112327026A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a novel double-winding double-metering high-voltage combined metering box which comprises a metering device, wherein the metering device comprises a voltage transformer, a first current transformer, a second current transformer, an electric energy meter and a negative control terminal, the voltage transformer and the first current transformer are connected to the electric energy meter through a first junction box, the voltage transformer and the second current transformer are connected to the negative control terminal through a second junction box, and the electric energy meter is in communication connection with the negative control terminal; the first junction box and the second junction box are connected with a lead in the metering device by using a quick connection terminal; the invention is improved at the source, real-time monitoring and comparison are carried out on the electric quantity data measured by the newly-installed charging metering device of a user and the electric quantity data measured by the novel intelligent metering box reference metering device, wrong wiring of the metering device is found in time and corrected in time, and meanwhile, wiring terminals in a system are improved, and the condition that a conducting wire falls off during wiring is prevented.
Description
Technical Field
The invention relates to the field of high-voltage metering boxes, in particular to a novel double-winding double-metering high-voltage combined metering box.
Background
When an electric power user uses a high-supply high-metering mode in an electric power system, metering errors are easily generated due to the wiring errors of a metering device loop, a 10kV high-voltage combined metering box is connected with a junction box through a secondary cable, the junction box is connected with an electric energy meter and a load control management terminal through a secondary circuit line to form a metering loop, in the process, more connecting equipment are needed, secondary wiring is complex, and the wiring errors are easily generated in the process; at present, no effective method and measure for effectively solving the wiring error of the metering device exist, and some methods are only improved from management, secondary cables or junction boxes, but have no substantial effect.
The conventional metering device adopting a metering mode with high supply and high metering capacity has more connecting equipment and more complex connecting points, and a professional teacher can not judge whether the wiring of the metering device is correct or whether the correct wiring is wrongly changed by misjudgment through equipment such as a phase sequence meter, a phase volt-ampere meter and the like due to the reasons of uncertain user load property, light load, unqualified electric energy quality and the like during field inspection, so that the electric quantity and electricity charge compensation and metering dispute of a user are caused.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problem to be solved by the present invention is that the existing metering device with a high supply and high metering mode has many connecting devices and many complex connecting points, and a professional master teacher can not judge whether the wiring of the metering device is correct or whether the correct wiring is changed by a wrong judgment error through the devices such as a phase sequence meter and a phase volt-ampere meter due to the reasons of uncertain user load property, light load, unqualified electric energy quality, etc. or judge the correct wiring by mistake to cause metering errors, thereby causing user electric quantity and electricity charge compensation and metering dispute.
In order to solve the technical problems, the invention provides the following technical scheme: a novel double-winding double-metering high-voltage combined metering box comprises a metering device, a first current transformer, a second current transformer, an electric energy meter and a negative control terminal, wherein the voltage transformer and the first current transformer are connected to the electric energy meter through a first junction box, the voltage transformer and the second current transformer are connected to the negative control terminal through a second junction box, and the electric energy meter is in communication connection with the negative control terminal; the first junction box and the second junction box are connected with a lead in the metering device by using a quick-connection terminal.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: the quick-connection terminal comprises a fixed assembly and a movable assembly, and the fixed assembly is connected with the movable assembly.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: the fixed component comprises a first joint, a first conductor positioned in the first joint; the movable assembly comprises a second connector and a second conductor positioned in the second connector, and the first conductor can be inserted into the first connector and connected with the first conductor.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: the first connector is provided with a penetrating conductive hole, the first conductor is located in the conductive hole, a first elastic piece is connected between the first conductor and one end of the conductive hole, a first limiting boss is arranged at one end, connected with the second conductor, of the conductive hole, and the diameter of the first limiting boss is smaller than that of the first conductor.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: a sliding cylinder is sleeved on the first joint, one end of the first joint, which is in contact with the second joint, extends along a radial direction to form a second limiting boss, the diameter of the second limiting boss is larger than the inner diameter of the sliding cylinder, and the sliding cylinder comprises a contact end sleeved on the second limiting boss; the first joint is provided with a through sliding groove along the radial direction, a limiting piece is arranged in the sliding groove, the limiting piece is provided with a guide groove, a guide piece is connected in the sliding cylinder, and the guide piece penetrates through the guide groove; and a limiting groove is formed in the part of the second conductor, which extends out of the second joint.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: one surface of the guide groove, which is far away from the first conductor, is a first inclined surface, a second inclined surface is arranged on the guide piece, and the first inclined surface is in contact with the second inclined surface; an avoiding groove is formed in the second limiting boss, and one end of the guide piece is inserted into the avoiding groove.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: the locating part is divided into a guide end and a limiting end, the end face of the guide end is parallel to the first inclined plane, a sliding groove is formed in the contact end, and the end face of the guide end is in contact with the sliding groove.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: the end face of the limiting end is an inclined plane, and the limiting end can be embedded into the guide groove.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: a third limiting boss is arranged at one end of the first joint, and a second elastic part is arranged between the third limiting boss and the sliding cylinder; a fourth limiting boss is arranged at one end of the second joint, which is in contact with the first joint, a shifting cylinder is sleeved on the second joint, the shifting cylinder is divided into a collision cylinder sleeved outside the fourth limiting boss and a limiting ring sleeved outside the second joint, and a fourth elastic element is connected between the limiting ring and the fourth limiting boss; the other end of the first joint is connected with an external piece.
As an optimal scheme of the novel double-winding double-metering high-voltage combined metering box, the invention comprises the following steps: a safety groove is formed in the periphery of the second joint, a limiting pin is arranged on the inner ring of the limiting ring, and the limiting pin is embedded into the safety groove; the safety groove includes a first groove extending axially from the second joint end, a second groove connected with the first groove and extending circumferentially along the second joint, and a third groove connected with the second groove and extending axially along the second joint.
The invention has the beneficial effects that: the invention is improved at the source, real-time monitoring and comparison are carried out on the electric quantity data measured by the metering device newly installed by a user and the electric quantity data measured by the novel intelligent metering box reference metering device, and wrong wiring of the metering device is found in time and corrected in time; when the metering device is in wrong wiring, the electric energy metered by the novel intelligent metering box reference metering device is used as a reference basis for error electric energy and electric charge compensation; after the novel intelligent metering box is installed, equipment such as a phase sequence meter, a phase volt-ampere meter and the like can be used for measurement, check and judgment on whether the wiring of the metering device is correct or not without the need of using the equipment on site, so that the working efficiency is improved; the quick-connection terminal is used as a part connected with the lead, when the quick-connection terminal is connected, the fixed assembly can clamp the movable assembly to prevent the circuit from being disconnected, and when the circuit needs to be disconnected, the movable assembly is pushed to pull the cylinder, so that the circuit can be automatically disconnected, and the power utilization safety is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the working principle of a novel double-winding double-metering high-voltage combined metering tank according to an embodiment of the invention;
fig. 2 is a schematic diagram of a three-phase three-wire system (three-phase two-element) wiring in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 3 is a schematic wiring diagram of a three-phase four-wire system (three-phase three-element) in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a quick connector in a novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a fixing component in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a movable assembly in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 7 is a schematic structural diagram illustrating a fixing principle of a fixing component in a novel dual-winding dual-metering high-voltage combined metering box according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a fixed component and a movable component in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention when connected;
fig. 9 is a schematic structural diagram of a sliding cylinder in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of a second joint in the novel double-winding double-metering high-voltage combined metering box according to an embodiment of the invention;
fig. 11 is a schematic structural view of a toggle cylinder in the novel dual-winding dual-metering high-voltage combined metering box according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a novel double-winding double-metering high-voltage combined metering box, which includes a metering device 100, including a voltage transformer 101, a first current transformer 102, a second current transformer 103, an electric energy meter 104 and a negative control terminal 105, wherein the negative control terminal 105 is a load control management terminal, and is the prior art. In the embodiment, the electric energy meter 104 and the negative control terminal 105 are respectively connected to and use independent metering current loops and voltage loops, and because the two groups of metering loops are independent, the wiring is simpler and is not easy to make mistakes, the checking is also convenient, and the independence of the metering loops of the metering device is met.
Specifically, referring to fig. 2 to 3, a group of independent metering current windings with the same transformation ratio are added in an original high-voltage combined metering box, two groups of independent voltage loops and current loops are respectively connected to an electric energy meter and a negative control terminal, so that the electric energy meter and the negative control terminal are ensured to respectively use the independent metering loops, namely, a voltage transformer 101 and a first current transformer 102 are connected to the electric energy meter 104 through a first junction box 106, the voltage transformer 101 and a second current transformer 103 are connected to the negative control terminal 105 through a second junction box 107, and the electric energy meter 104 is in communication connection with the negative control terminal 105; preferably, the first terminal box 106 and the second terminal box 107 are connected with the wires in the metering device 100 by using the quick-connection terminal a, so that the plugging and the dismounting are convenient.
The embodiment solves the defects that the conventional metering device adopting the metering mode of high supply and high metering of the typical design of the metering device has more connecting equipment and more complex connecting points, a wiring terminal is easy to generate virtual connection and wrong wiring, and a professional teacher can not judge whether the wiring of the metering device is correct or not through equipment such as a phase sequence meter, a phase volt-ampere meter and the like or change the correct wiring by mistake to cause metering errors and cause the follow-up of the electric quantity and the electric charge of a user and metering dispute because the user load property is uncertain or the load is lighter and the electric energy quality is unqualified during the field inspection by the teacher; the problem that the terminal and the meter are connected through the same group of metering voltage and metering current loops is solved, so that the metering data of the metering device are consistent and wrong under the condition of wrong wiring of the metering device, the terminal cannot analyze the data collected on site and cannot find the defect of abnormal reporting, if the data collected by the terminal and the electric energy meter 104 are different when the wiring of the metering device 100 is wrong, the metering system monitors the data collected on site in real time and finds an abnormal active alarm, and the staff of a power supply department can compare the data collected by the metering automation system with the data of the electric energy meter to find the abnormal on-site processing in time.
Meanwhile, the problem that the error of a mutual inductor for metering is difficult to find is solved, because the high-voltage combined metering box is primary equipment and is mainly installed on an electric pole, when the errors of a current mutual inductor and a voltage mutual inductor for metering of the high-voltage combined metering box are suspected, power failure inspection or error test is needed, the electric energy meter 104 and a negative control terminal 105 are respectively connected into and used for an independent metering current loop and an independent voltage loop, when a metering automation system finds that the data of the terminal is inconsistent with the data of the electric energy meter, the wiring of a metering device is checked correctly on site, one of the electric energy meter, the terminal and the mutual inductor can be judged to have the error, and the error of equipment can be tested in a targeted manner and; the accuracy of calculating the electricity quantity and the electricity charge of the additional compensation when the wiring error of a metering device or the error of metering equipment is out of tolerance is solved, the electricity quantity and the electricity charge of the additional compensation are calculated mainly by a formula method, an installation comparison metering method, a synchronous electricity quantity comparison method, a line loss method and the like at present, but the calculation accuracy cannot be guaranteed due to the defects of the electricity quantity and the electricity charge of the additional compensation.
Example 2
Referring to fig. 1 to 11, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that:
the quick-connection terminal A comprises a fixed assembly 200 and a movable assembly 300, the fixed assembly 200 is connected with the movable assembly 300, in the embodiment, the fixed assembly 200 is installed on a terminal of the storage battery 103a, the movable assembly 300 is connected with an input end of the DC/DC boosting module 105 through a lead, and when the fixed assembly 200 is connected with the movable assembly 300, the DC/DC boosting module 105 is connected with the storage battery 103a completely.
Specifically, the fixing assembly 200 includes a first connector 201, a first conductor 202 located in the first connector 201, the first connector 201 is an insulator, the first conductor 202 is connected to a terminal of the battery 103a, and the first conductor 202 is located in the first connector 201; the movable assembly 300 includes a second connector 301 and a second conductor 302 disposed in the second connector 301, the second connector 301 is an insulator, the second conductor 302 has a portion extending therein, and the first conductor 202 can be inserted into the first connector 201 to connect with the first conductor 202.
Further, the first connector 201 is provided with a through conductive hole 201a, the first conductor 202 is located in the conductive hole 201a, the first conductor 202 is cylindrical, the first conductor 202 can slide in the conductive hole 201a along the axial direction, a first elastic member 203 is connected between the first conductor 202 and one end of the conductive hole 201a, the first elastic member 203 is preferably a pressure spring, that is, under the elastic force of the first elastic member 203, the first conductor 202 tends to move towards the opening direction of the conductive hole 201a, a first limiting boss 201b is arranged at the end of the conductive hole 201a connected with the second conductor 302, and the diameter of the first limiting boss 201b is smaller than that of the first conductor 202, so that the first limiting boss 201b can limit the first conductor 202 from extending out of the conductive hole 201 a.
Further, a sliding cylinder 204 is sleeved on the first joint 201, the sliding cylinder 204 is a hollow cylindrical insulator, the inner diameter of the sliding cylinder 204 is equal to the outer diameter of the first joint 201 and is in clearance fit with the outer diameter of the first joint 201, accordingly, the sliding cylinder 204 can slide on the first joint 201, correspondingly, one end of the first joint 201, which is in contact with the second joint 301, extends along the radial direction to form a second limiting boss 201c, the diameter of the second limiting boss 201c is larger than the inner diameter of the sliding cylinder 204, and the second limiting boss 201c limits the sliding cylinder 204 to be separated from the first joint 201, wherein the sliding cylinder 204 comprises a contact end 204a sleeved on the second limiting boss 201c, the contact end 204a is cylindrical, and the contact end 204a is in clearance fit with the second limiting boss 201 c.
Further, the first joint 201 is provided with a through sliding groove 201d in the radial direction, a limiting member 205 is arranged in the sliding groove 201d, and the limiting member 205 can slide in the sliding groove 201d in the radial direction of the first joint 201, wherein the limiting member 205 is provided with a guide groove 205a, the guide groove 205a penetrates in the axial direction of the first joint 201, a guide member 206 is connected in the sliding cylinder 204, and the guide member 206 passes through the guide groove 205 a; the portion of the second conductor 302 extending out of the second tab 301 is provided with a stopper groove 302 a. That is, when the second conductor 302 is inserted into the conductive hole 201a and connected to the first conductor 202, one end of the stopper 205 can be inserted into the stopper groove 302a to restrict the axial displacement of the second conductor 302, so that one end of the second conductor 302 can be fixed to the conductive hole 201a and connected to the first conductor 202.
When the sliding cylinder 204 slides on the first joint 201, the position of the limiting member 205 can be adjusted to insert one end into the limiting groove 302 a; specifically, a side of the guide groove 205a away from the first conductor 202 is a first inclined surface 205b, that is, a cross section of the guide groove 205a is a right trapezoid, a height of the right trapezoid is a depth of the guide groove 205a, and is also a thickness of the limiting member 205, and correspondingly, the guide member 206 is provided with a second inclined surface 206a, the first inclined surface 205b is parallel to and in contact with the second inclined surface 206a, so that when the guide member 206 moves along with the sliding barrel 204, the second inclined surface 206a can push the first inclined surface 205b to move, preferably, when the sliding barrel 204 is pushed to move in a direction away from the second limiting projection 201c, the second inclined surface 206a simultaneously moves on a surface of the first joint 201 along the axial direction, and at this time, the second inclined surface 206a pushes the first inclined surface 205b, so that the movement of the sliding barrel 204 along the axial direction of the first joint 201 is converted into the movement of the guide member 206 along the radial direction of the first joint 201, so that one end of the adjustment guide 206 is disengaged from the catching groove 302 a.
Further, the limiting member 205 is divided into a guiding end 205c and a limiting end 205d, the guiding end 205c is an end located outside the first connector 201, and the limiting end 205d is an end located inside the conductive hole 201a, wherein an end surface of the guiding end 205c is parallel to the first inclined surface 205b, that is, a cross section of a portion between the guiding end 205c and the guiding groove 205a is a parallelogram; preferably, the sliding slot 204b is formed in the abutting end 204a, a space is formed between the sliding slot 204b and the guiding element 206, so that the guiding end 205c is located in the space, the end surface of the guiding end 205c contacts with the sliding slot 204b, and then when the sliding cylinder 204 starts to reset, one surface of the sliding slot 204b pushes the end surface of the guiding end 205c to move.
It should be noted that, in order to avoid the motion interference of the components in the above process, an avoiding groove 201f is formed in the second limiting boss 201c, one end of the guide 206 is inserted into the avoiding groove 201f, and the avoiding groove 201f can also limit the rotation of the sliding cylinder 204.
Preferably, the end surface of the limiting end 205d is an inclined surface, that is, the limiting end 205d is wedge-shaped, and the limiting end 205d can be inserted into the guiding groove 205a, wherein when the second conductor 302 enters the conductive hole 201a, the inclined end surface of the limiting end 205d is firstly contacted, and the limiting member 205 can be pushed to contract into the sliding groove 201 d.
Preferably, a third limiting boss 201e is disposed at one end of the first connector 201, the diameter of the third limiting boss 201e is larger than that of the first connector 201, a second elastic member 207 is disposed between the third limiting boss 201e and the sliding tube 204, and the second elastic member 207 is a pressure spring, so that one end of the sliding tube 204 abuts against the second limiting boss 201c under the elastic force of the second elastic member 207, that is, in a normal state, the sliding groove 204b in the sliding tube 204 pushes the limiting member 205 and the limiting end 205d extends into the conductive hole 201 a.
Further, the one end that second joint 301 and first joint 201 contact is provided with fourth spacing boss 301a, and the diameter of fourth spacing boss 301a is not more than the diameter of second spacing boss 201c, and the cover is equipped with on the second joint 301 and stirs the drum 303, stirs drum 303 and second joint 301 and is clearance fit, stirs the internal diameter of drum 303 and is greater than the diameter of second spacing boss 201c and be not more than the internal diameter of touching end 204 a.
Specifically, the toggle cylinder 303 is divided into a contact cylinder 303a sleeved outside the fourth limiting boss 301a and a limiting ring 303b sleeved outside the second connector 301, the limiting ring 303b and the fourth limiting boss 301a can limit the toggle cylinder 303 to be separated from the second connector 301, a fourth elastic member 304 is connected between the limiting ring 303b and the fourth limiting boss 301a, the fourth elastic member 304 is a pressure spring, that is, under the elastic force of the fourth elastic member 304, the limiting ring 303b is far away from the fourth limiting boss 301a, so that when the first connector 201 is connected with the second connector 301, the limiting member 205 blocks the second conductor 302 so that the two conductors cannot be separated, when the first connector 201 is disconnected, the toggle cylinder 303 is pushed to one end of the first connector 201, at this time, one end of the toggle cylinder 303 is contacted with the sliding cylinder 204 and pushes one end of the sliding cylinder 204, and then the guiding member 206 therein drives the limiting member 205 to separate the limiting end 205d from the limiting groove 302a, at this time, the axial movement of the second conductor 302 is no longer restricted, and the first conductor 202 pushes the second conductor 302 out of the conductive hole 201a by the elastic force of the first elastic member 203, so that the first contact 201 is disconnected from the second contact 301; it should be noted that the elastic force of the first elastic member 203 is greater than the elastic force of the fourth elastic member 304, so that the first elastic member 203 can make the first conductor 202 push the second conductor 302 out of the conductive hole 201 a.
Further, the other end of the first connector 201 is connected with an external connector 305, the external connector 305 is an external wire, wherein the wire is connected with the second conductor 302, in this embodiment, the external connector 305 is connected with an input end wire, and the fixing component replaces the binding posts on the existing first junction box 106 and the second junction box 107.
Preferably, in order to prevent foreign objects from touching the toggle cylinder 303 to break the quick-connect terminal a, the outer periphery of the second connector 301 is provided with a safety groove 301b, the inner ring of the limit ring 303b is provided with a limit pin 303c, and the limit pin 303c is embedded into the safety groove 301 b.
Wherein the safety groove 301b includes a first groove 301b-1 extending axially from the end of the second connector 301, a second groove 301b-2 connected to the first groove 301b-1 and extending circumferentially along the second connector 301, and a third groove 301b-3 connected to the second groove 301b-2 and extending axially along the second connector 301. When the first groove 301b-1 is used for installing the toggle cylinder 303, the limiting pin 303c enters from the first groove 301b-1, the second groove 301b-2 is used for connecting the quick-connect terminal A and limiting the position of the pin 303c, and when the quick-connect terminal A needs to be disconnected, the toggle cylinder 303 can be operated to slide on the second joint 301 only by rotating the toggle cylinder 303 and enabling the limiting pin 303c to rotate into the third groove 301 b-3.
Before the fixed component 200 and the movable component 300 are not connected, the limit end 205d extends into the conductive hole 201a, and at this time, when the movable component 300 is connected with the fixed component 200, the second conductor 302 is firstly inserted into the conductive hole 201a and abuts against the inclined surface of the limit end 205d, the limit end 205d is contracted into the sliding groove 201d, when the second conductor 302 continues to enter the conductive hole 201a and abuts against the first conductor 202, the limit end 205d is just embedded into the limit groove 302a, and at this time, one surface of the limit end 205d can limit the axial deviation of the second conductor 302, so as to prevent the second conductor 302 from falling off; when the disconnection is required, the toggle cylinder 303 is rotated to rotate the limit pin 303c into the third groove 301b-3, so that the toggle cylinder 303 is pushed to move towards the fixing component 200, the end surface of the toggle cylinder 303 pushes the sliding cylinder 204, and the guide 206 moves in the axial direction, so that the second inclined surface 206a of the guide 206 pushes the first inclined surface 205b, i.e., the limit piece 205, to separate from the limit groove 302a, the first conductor 202 pushes the second conductor 302 out of the conductive hole 201a under the action of the first elastic piece 203, and after the fixing component 200 and the movable component 300 are separated, the fixing component 200 is reset under the elastic action of the first elastic piece 203.
In this embodiment, a quick-connect terminal a is provided for embodiment 1, thereby avoiding an open circuit in the system during the implementation of embodiment 1, and the quick-connect terminal a is easy to insert and break, thereby improving the electrical safety.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a novel two measurement high pressure combination formula batch meters of duplex winding, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the metering device (100) comprises a voltage transformer (101), a first current transformer (102), a second current transformer (103), an electric energy meter (104) and a negative control terminal (105), wherein the voltage transformer (101) and the first current transformer (102) are connected to the electric energy meter (104) through a first junction box (106), the voltage transformer (101) and the second current transformer (103) are connected to the negative control terminal (105) through a second junction box (107), and the electric energy meter (104) is in communication connection with the negative control terminal (105);
the first junction box (106) and the second junction box (107) are connected with wires in the metering device (100) by using quick-connection terminals (A).
2. The novel double-winding double-metering high-voltage combined metering box according to claim 1, characterized in that: the quick-connection terminal (A) comprises a fixed assembly (200) and a movable assembly (300), wherein the fixed assembly (200) is connected with the movable assembly (300).
3. The novel double-winding double-metering high-voltage combined metering box according to claim 2, characterized in that: the fixation assembly (200) comprises a first joint (201), a first conductor (202) located within the first joint (201); the movable assembly (300) comprises a second connector (301) and a second conductor (302) positioned in the second connector (301), and the first conductor (202) can be inserted into the first connector (201) to be connected with the first conductor (202).
4. The novel double-winding double-metering high-voltage combined metering box according to claim 3, characterized in that: the first connector (201) is provided with a through conductive hole (201a), the first conductor (202) is located in the conductive hole (201a), a first elastic piece (203) is connected between the first conductor (202) and one end of the conductive hole (201a), a first limiting boss (201b) is arranged at one end, connected with the second conductor (302), of the conductive hole (201a), and the diameter of the first limiting boss (201b) is smaller than that of the first conductor (202).
5. The novel double-winding double-metering high-voltage combined metering box according to claim 4, characterized in that: a sliding cylinder (204) is sleeved on the first connector (201), one end of the first connector (201) contacted with the second connector (301) extends along the radial direction to form a second limiting boss (201c), the diameter of the second limiting boss (201c) is larger than the inner diameter of the sliding cylinder (204), and the sliding cylinder (204) comprises a contact end (204a) sleeved on the second limiting boss (201 c);
a through sliding groove (201d) is formed in the first joint (201) in the radial direction, a limiting piece (205) is arranged in the sliding groove (201d), a guide groove (205a) is formed in the limiting piece (205), a guide piece (206) is connected in the sliding cylinder (204), and the guide piece (206) penetrates through the guide groove (205 a);
the part of the second conductor (302) extending out of the second joint (301) is provided with a limiting groove (302 a).
6. The novel double-winding double-metering high-voltage combined metering box according to claim 5, characterized in that: one surface of the guide groove (205a) far away from the first conductor (202) is a first inclined surface (205b), a second inclined surface (206a) is arranged on the guide piece (206), and the first inclined surface (205b) is in contact with the second inclined surface (206 a);
be provided with on the spacing boss of second (201c) and dodge groove (201f), the one end of guide (206) is inserted dodge in groove (201 f).
7. The novel double-winding double-metering high-voltage combined metering box according to claim 6, characterized in that: the locating part (205) is divided into a guide end (205c) and a limiting end (205d), the end face of the guide end (205c) is parallel to the first inclined plane (205b), a sliding groove (204b) is arranged in the contact end (204a), and the end face of the guide end (205c) is in contact with the sliding groove (204 b).
8. The novel double-winding double-metering high-voltage combined metering box according to claim 7, characterized in that: the end face of the limiting end (205d) is an inclined plane, and the limiting end (205d) can be embedded into the guide groove (205 a).
9. The novel double-winding double-metering high-voltage combined metering box according to claim 8, characterized in that: a third limiting boss (201e) is arranged at one end of the first joint (201), and a second elastic piece (207) is arranged between the third limiting boss (201e) and the sliding cylinder (204);
a fourth limiting boss (301a) is arranged at one end, which is in contact with the first joint (201), of the second joint (301), a shifting cylinder (303) is sleeved on the second joint (301), the shifting cylinder (303) is divided into a collision cylinder (303a) sleeved outside the fourth limiting boss (301a) and a limiting ring (303b) sleeved outside the second joint (301), and a fourth elastic part (304) is connected between the limiting ring (303b) and the fourth limiting boss (301 a); the other end of the first joint (201) is connected with an external piece (305).
10. The novel double-winding double-metering high-voltage combined metering box according to claim 9, characterized in that: a safety groove (301b) is formed in the periphery of the second joint (301), a limiting pin (303c) is arranged on the inner ring of the limiting ring (303b), and the limiting pin (303c) is embedded into the safety groove (301 b); the safety groove (301b) includes a first groove (301b-1) extending in an axial direction from an end of the second joint (301), a second groove (301b-2) connected to the first groove (301b-1) and extending in a circumferential direction of the second joint (301), and a third groove (301b-3) connected to the second groove (301b-2) and extending in an axial direction of the second joint (301).
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| CN202011199763.5A CN112327026B (en) | 2020-10-31 | 2020-10-31 | Novel double-winding double-metering high-voltage combined metering box |
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| CN112327026B CN112327026B (en) | 2022-09-23 |
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|---|---|
| CN112327026B (en) | 2022-09-23 |
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