CN110247207B - Wiring terminal for measurement and follow current - Google Patents
Wiring terminal for measurement and follow current Download PDFInfo
- Publication number
- CN110247207B CN110247207B CN201910259124.4A CN201910259124A CN110247207B CN 110247207 B CN110247207 B CN 110247207B CN 201910259124 A CN201910259124 A CN 201910259124A CN 110247207 B CN110247207 B CN 110247207B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, 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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
- H01R4/44—Clamping areas on both sides of screw
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a connecting terminal for measuring and afterflow, which comprises two symmetrical gaskets, a connecting sheet for conducting electricity between the two gaskets, and a control piece for controlling the connecting sheet to move upwards or downwards, wherein the two gaskets are arranged in parallel at the left and right and are not in contact with each other; the advantage is that the measuring point is fixed, and two binding post switch to four-wire system when the connection piece upwards moves and makes it break away from two water conservancy diversion copper bars, switch to two-wire system when the connection piece downwards moves and makes its contact two water conservancy diversion copper bars, can guarantee that the collection point of four-wire system is at the same point, can bear the heavy current for a long time.
Description
Technical Field
The invention relates to an auxiliary accessory for connecting acquisition equipment with a positive electrode and a negative electrode of a battery, in particular to a connecting terminal for measurement and follow current.
Background
Storage battery packs have been widely used in dc backup power supplies. In recent years, there are more and more products and devices for online monitoring and protection of battery packs, and all of these products and devices, without exception, require that the positive and negative electrodes of the battery be connected to a collection device.
The following conventional connection methods are adopted between the collecting device and the positive electrode and the negative electrode of the battery: 1) the tail end of the metal clip is welded or pressed with a lead of the acquisition equipment, and the clip part of the metal clip clips a screw on a pole of the anode or the cathode of the battery; 2) the tail end of the metal clamp is welded or pressed with a lead of the acquisition equipment, a copper bar is connected to a pole of the anode or the cathode of the battery and is screwed down by a screw, and the copper bar is clamped by the clamp part of the metal clamp; 3) adopting an OT cold pressing terminal or an UT cold pressing terminal, wherein the tail end of the cold pressing terminal is in compression joint with a lead of the acquisition equipment, and the end head of the cold pressing terminal is screwed through a screw on a pole column of the anode or the cathode of the battery; 4) adopt the copper bar, the one end of copper bar and the wire welding of collection equipment, the screw on the other end of copper bar passes through the positive pole of battery or the utmost point post of negative pole is screwed up.
The above wiring methods have respective advantages and disadvantages:
by adopting the metal clip, although the wiring is convenient, the contact between the clip part of the metal clip and the screw or the copper bar on the pole of the anode or the cathode of the battery is unreliable, and the positions of the clips at each time cannot be completely the same, so that the measurement of parameters such as voltage, current and the like is inaccurate, and the metal clip is only suitable for equipment with low parameter requirements, such as a discharger.
The OT cold-pressed terminal or the UT cold-pressed terminal is adopted, the storage battery pack needs to be disconnected during connection, the end of the cold-pressed terminal is reliably contacted with a screw on a pole of the anode or the cathode of the battery, once the screw is screwed down, a measuring point is fixed and unchanged, the measurement of parameters such as voltage and current is accurate, but the high current cannot be borne for a long time, and the method is suitable for equipment which has higher requirements on the parameters and is connected for a long time and runs infrequently, such as on-line monitoring equipment; and experiments show that the cold pressing terminals are adopted, in equipment needing four-wire system measurement, two cold pressing terminals are required to be stacked on the positive pole and the negative pole of the battery respectively, but the two cold pressing terminals are still different in measuring point after being stacked up and down to tighten screws, so that tiny data difference is caused, the equipment needing accurate calculation is not ideal enough, the problem of inconvenient installation exists in the process of tightening the screws, and the problem of deformation of the ends of the cold pressing terminals can also occur, so that the screws cannot be tightened.
Adopt the copper bar, the screw contact on the utmost point post of the positive pole of copper bar and battery or negative pole is reliable, can bear the weight of heavy current for a long time, but generally requires the copper bar to have a great size, still need the welding at the wire with the collection equipment of small volume, and the installation is inconvenient.
At present, for products and equipment for online monitoring and protection of a storage battery pack, parameters such as voltage, temperature and internal resistance of a battery are generally required to be measured, the internal resistance is required to be calculated through short-time discharge, and thus, the voltage and the discharge current during the short-time discharge must be acquired at the same time, and because the discharge current is relatively large (more than 50A), a four-wire system (two positive wires and two negative wires, one wire measures the voltage, and the other wire is used for discharging to calculate the discharge current) is generally adopted. The internal resistance calculation needs to measure the voltage and the discharge current during short-time discharge very accurately, and the difference of several millivolts can cause great difference of internal resistance calculation results, so that the internal resistance calculation needs to be measured accurately.
Disclosure of Invention
The invention aims to solve the technical problem of providing a connecting terminal for measuring and afterflowing, which is convenient to install, has fixed measuring points, is compatible with a two-wire system and a four-wire system, can be switched at any time, can ensure that collecting points of the four-wire system are at the same point, and can bear large current for a long time.
The technical scheme adopted by the invention for solving the technical problems is as follows: a connecting terminal for measurement and follow current is characterized by comprising two symmetrical gaskets, a connecting sheet for enabling the two gaskets to conduct electricity and a control piece for controlling the connecting sheet to move upwards or downwards, wherein the two gaskets are arranged side by side left and right and are in clearance non-contact with each other, each gasket comprises a flow guide copper bar, a front end piece vertically arranged at the front end of the flow guide copper bar and a cold-pressed wiring port arranged at the rear end of the flow guide copper bar, the front end piece is in a crab-leg shape, two sleeve-joint holes with openings are symmetrically formed in the two front end pieces, the sleeve-joint holes are matched with screws on a positive pole or a negative pole of a battery, the end of a lead of a collecting device extends into a central hole of the cold-pressed wiring port and is pressed together, and the connecting sheet is positioned above the two flow guide copper bars, the two wiring terminals are switched to a four-wire system when the control part controls the connecting sheet to move upwards to enable the connecting sheet to be separated from the two guide copper bars, and the two wiring terminals are switched to the two-wire system when the control part controls the connecting sheet to move downwards to enable the connecting sheet to be in contact with the two guide copper bars.
This binding post still includes insulating casing, insulating casing's front and back both ends opening, insulating casing's interior bottom on be provided with the baffle along the fore-and-aft direction, the baffle divide insulating casing's inside cavity be two even sub-chambers, the baffle on seted up a intercommunication two the breach of sub-chamber, cold pressing wiring port and be connected with it the partly install in sub-chamber of water conservancy diversion copper bar, the connection piece set up in the breach in and span two sub-chamber, the connection piece be located two the top of water conservancy diversion copper bar, the control with insulating casing with the connection piece connect. The insulating shell is adopted, so that insulation can be guaranteed when the wiring terminal is used for connecting a battery in engineering installation, an installer can directly hold the wiring terminal for installation by bare hands, and convenience and safety are realized; and make two gaskets not contact each other through injecing to the inner structure of insulating casing, the connection piece is located the top of two water conservancy diversion copper bars.
The insulating shell is composed of a base with openings at the front end and the rear end and an upper cover matched with the base, and the partition plate is arranged on the inner bottom of the base. Here, the top edge of base and the edge of upper cover can adopt the buckle connected mode to connect.
The two side walls of the notch are respectively provided with a limiting plate for limiting the connecting sheet in the front and back directions, and the two limiting plates and the left and right side walls of the base form a limiting cavity which can just contain the connecting sheet. Here, the spacing chamber provides the space that holds for the connecting piece, and has prevented the connecting piece from the skew of front and back left and right sides direction, has prevented that control piece control connecting piece rotates when upwards or moving down promptly.
The control piece consists of a control screw and a nut, a lower through hole for the control screw to pass through is arranged on the bottom of the base in a penetrating way, a lower groove which is coaxial with the lower through hole and is used for accommodating the tail part of the control screw is arranged on the outer bottom of the base, the tail part of the control screw can freely rotate in the lower groove, an upper through hole for the control screw to pass through is arranged on the upper cover in a penetrating way, an upper groove which is coaxial with the upper through hole and is used for accommodating the nut is arranged on the top of the upper cover, the nut can freely rotate in the upper groove, a through groove is arranged between the two diversion copper bars, a screw hole is arranged on the connecting piece, and the positions of the upper through hole, the screw hole, the through groove and the lower through hole correspond, the control screw penetrates through the lower through hole, is in threaded connection with the screw hole after penetrating through the through groove, is in non-screwed connection with the nut after penetrating through the upper through hole, and is made to rotate, and the control screw rotates to drive the nut to rotate, so that the connecting sheet moves upwards or downwards in the limiting cavity relative to the control screw. The control piece is simple in structure and only comprises a control screw and a nut, the tail of the control screw is limited in the lower groove, the nut is limited in the upper groove, the control screw and the nut are in non-screwing connection and cannot be screwed, so that the nut can be driven to rotate freely in the upper groove without falling out when the control screw rotates, the connecting piece is in threaded connection with the control screw and is limited in the limiting cavity, and the connecting piece can move upwards or downwards in the limiting cavity relative to the control screw when the control screw rotates.
The width of the flow guide copper bar is 6 mm, and the thickness of the flow guide copper bar is 1 mm. Here, the width and the thickness of restriction water conservancy diversion copper bar can make the water conservancy diversion copper bar bear heavy current under the prerequisite that the assurance volume is little.
Compared with the prior art, the invention has the advantages that:
1) when the wiring terminal is used for connecting the wires of the acquisition equipment and the screws on the positive and negative terminals of the battery, two wiring terminals are required to be used, the cold-pressed wiring port in one wiring terminal and one wire of the acquisition equipment are connected together by using the existing crimping tool, the sleeving hole formed by the two front end pieces is sleeved on the screw on the positive terminal of the battery and then screwed to realize connection, the cold-pressed wiring port in the other wiring terminal and the other wire of the acquisition equipment are connected together by using the existing crimping tool, the sleeving hole formed by the two front end pieces is sleeved on the screw on the negative terminal of the battery and then screwed to realize connection, the installation is convenient, and the measurement point is fixed.
2) The control piece can be used for controlling the connecting piece to move upwards or downwards, when the heavy current is required to be conducted and carried, the control screw is rotated clockwise, so that the connecting piece moves downwards until the control screw is screwed down, and the connecting piece is tightly contacted with the two corresponding gaskets to be connected into a whole, namely the connecting piece and the two corresponding gaskets are combined into a channel, so that two wiring terminals are realized; when the four-wire system needs to be switched, the control screw is rotated anticlockwise to be unscrewed, so that the connecting sheet moves upwards, the connecting sheet is separated from the two corresponding gaskets, the two gaskets are separated into two wires again, the two wiring terminals are well compatible with the two-wire system and the four-wire system, the two-wire system and the four-wire system can be flexibly switched through the control part, and the wiring does not need to be disconnected again; and because the socket hole that two front-end parts in a binding post formed cup joints on the screw on the utmost point post of the positive pole or negative pole of battery, the contact point of two front-end parts is on the coplanar, it is 0 that the same potential difference of department on the utmost point post is contacted, can guarantee that the collection point of four-wire system is at the same point promptly, can guarantee that the voltage parameter of gathering is unanimous, can be used to accurate measurement and calculation.
3) Because the gasket adopts the water conservancy diversion copper bar, consequently can bear heavy current for a long time, can bear the heavy current more than 50A even during two-wire system.
4) Because the gasket adopts the cold-pressed wiring port, a crimping tool such as a cold-pressed wiring clamp can be directly used for crimping the cold-pressed wiring port and the wire of the acquisition equipment, so that welding is avoided, the installation is convenient, and the limitation of a field is avoided.
5) The front end piece is designed into a partial structure of a crab foot shape, namely a circular ring, so that the front end piece can be sleeved on a screw on a pole, and the four-wire system is adopted without overlapping, so that the problem of deformation generated when the screw on the pole is screwed is solved.
Drawings
Fig. 1 is a schematic perspective view of a connection terminal according to the present invention;
fig. 2 is a schematic perspective view of a connecting terminal according to the present invention;
fig. 3 is a schematic perspective view of the terminal of the present invention (with the upper cover removed);
fig. 4 is a schematic structural view of two pads in the connection terminal of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The invention provides a connecting terminal for measurement and follow current, as shown in figures 1-4, the connecting terminal comprises an insulating shell 1, two symmetrical gaskets 2, a connecting sheet 3 for enabling the two gaskets 2 to conduct electricity, and a control member 4 for controlling the connecting sheet 3 to move upwards or downwards, the front end and the rear end of the insulating shell 1 are open, a partition plate 11 is arranged on the inner bottom of the insulating shell 1 along the front-rear direction, the partition plate 11 is divided into two uniform sub cavities 12 in the inner cavity of the insulating shell 1, a notch 13 communicated with the two sub cavities 12 is formed in the partition plate 11, the two gaskets 2 are arranged in parallel left and right, gaps are not contacted with each other, each gasket 2 comprises a flow guide copper bar 21, a front end piece 22 vertically arranged on the front end of the flow guide copper bar 21, and a cold-pressing wiring port 23 arranged on the rear end of the flow guide copper bar 21, and the width of, The thickness is 1 mm, the width and the thickness of the guide copper bar 21 are limited, the guide copper bar 21 can bear large current on the premise of ensuring small size, the cold-pressing wiring port 23 and a part of the guide copper bar 21 connected with the cold-pressing wiring port are installed in the sub-cavities 12, the connecting sheet 3 is arranged in the notch 13 and stretches across the two sub-cavities 12, the connecting sheet 3 is positioned above the two guide copper bars 21, the control piece 4 is connected with the insulating shell 1 and the connecting sheet 3, the front end piece 22 is in a crab-leg shape, a part of the front end piece 22 processed into a circular ring structure in actual processing is in the shape of a crab-leg, two front end pieces 22 are symmetrically provided with a sleeving hole 24 with an opening, the sleeving hole 24 is matched with a screw on a positive pole or a negative pole of a battery, the end of a lead of the acquisition equipment extends into a central hole of the cold-pressing wiring port 23 and is pressed together, and the two wiring terminals are switched to four when the connecting sheet And in the wire system, the two wiring terminals are switched to the two wire system when the control part 4 controls the connecting sheet 3 to move downwards so that the connecting sheet 3 is in contact with and connected with the two guide copper bars 21. The insulating shell 1 is adopted, so that insulation can be guaranteed when the wiring terminal is used for connecting a battery in engineering installation, and an installer can directly hold the wiring terminal by hands for installation, so that convenience and safety are realized; and make two gaskets 2 each other contactless through the injecing to the inner structure of insulating casing 1, connection piece 3 is located the top of two water conservancy diversion copper bars 21.
In this embodiment, the insulating housing 1 is composed of a base 14 with openings at the front and rear ends and an upper cover 15 matched with the base 14, the partition 11 is arranged on the inner bottom of the base 14, and the top edge of the base 14 and the edge of the upper cover 15 can be connected in a snap connection manner; the two side walls of the notch 13 are respectively provided with a limiting plate 16 for limiting the front and back of the connecting sheet 3, the two limiting plates 16 and the left and right side walls of the base 14 form a limiting cavity (not shown in the figure) which just can accommodate the connecting sheet 3, the limiting cavity provides an accommodating space for the connecting sheet 3, and the connecting sheet 3 is prevented from shifting in the front, back, left and right directions, namely, the control member 4 is prevented from controlling the connecting sheet 3 to rotate when moving upwards or downwards.
In this embodiment, the control member 4 is composed of a control screw 41 and a nut 42, a lower through hole (not shown in the figure) for passing the control screw 41 is formed on the bottom of the base 14, a lower groove 141 coaxial with the lower through hole and used for accommodating the tail of the control screw 41 is formed on the outer bottom of the base 14, the tail of the control screw 41 can rotate freely in the lower groove 141, an upper through hole (not shown in the figure) for passing the control screw 41 is formed on the upper cover 15, an upper groove 151 coaxial with the upper through hole and used for accommodating the nut 42 is formed on the top of the upper cover 15, the nut 42 can rotate freely in the upper groove 151, a through groove 25 is formed between the two diversion copper bars 21, a screw hole 31 is formed on the connecting piece 3, the positions of the upper through hole, the screw hole 31, the through groove 25 and the lower through hole correspond, the control screw 41 passes through the lower through hole, And the connecting piece penetrates through the upper through hole and is connected with the nut 42 in a non-screwed mode, so that the control screw 41 can rotate, the control screw 41 rotates to drive the nut 42 to rotate, and the connecting piece 3 moves upwards or downwards relative to the control screw 41 in the limiting cavity. The control member 4 has a simple structure and is composed of only the control screw 41 and the nut 42, because the tail of the control screw 41 is limited in the lower groove 141, the nut 42 is limited in the upper groove 151, and the control screw 41 and the nut 42 are not screwed, the control screw 41 can drive the nut 42 to rotate freely in the upper groove 151 without falling out, and the connecting piece 3 is screwed with the control screw 41 and limited in the limiting cavity, so that the connecting piece 3 can move upwards or downwards in the limiting cavity relative to the control screw 41 by the rotation of the control screw 41.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A connecting terminal for measurement and follow current is characterized by comprising two symmetrical gaskets, a connecting sheet for enabling the two gaskets to conduct electricity and a control piece for controlling the connecting sheet to move upwards or downwards, wherein the two gaskets are arranged side by side left and right and are in clearance non-contact with each other, each gasket comprises a flow guide copper bar, a front end piece vertically arranged at the front end of the flow guide copper bar and a cold-pressed wiring port arranged at the rear end of the flow guide copper bar, the front end piece is in a crab-leg shape, two sleeve-joint holes with openings are symmetrically formed in the two front end pieces, the sleeve-joint holes are matched with screws on a positive pole or a negative pole of a battery, the end of a lead of a collecting device extends into a central hole of the cold-pressed wiring port and is pressed together, and the connecting sheet is positioned above the two flow guide copper bars, the two wiring terminals are switched to a four-wire system when the control part controls the connecting sheet to move upwards so that the connecting sheet is separated from the two guide copper bars, and the two wiring terminals are switched to a two-wire system when the control part controls the connecting sheet to move downwards so that the connecting sheet is in contact with the two guide copper bars;
the wiring terminal also comprises an insulating shell, the front end and the rear end of the insulating shell are provided with openings, a partition board is arranged on the inner bottom of the insulating shell along the front-rear direction, the partition board divides an inner cavity of the insulating shell into two uniform sub-cavities, a notch for communicating the two sub-cavities is formed in the partition board, the cold-pressed wiring port and one part of the diversion copper bar connected with the cold-pressed wiring port are arranged in the sub-cavities, the connecting sheet is arranged in the notch and spans the two sub-cavities, the connecting sheet is positioned above the two diversion copper bars, and the control piece is connected with the insulating shell and the connecting sheet;
the insulating shell consists of a base with openings at the front end and the rear end and an upper cover matched with the base, and the partition plate is arranged on the inner bottom of the base;
two limiting plates are respectively arranged on two side walls of the notch to limit the connecting sheet forwards and backwards, and a limiting cavity which can just contain the connecting sheet is formed by the two limiting plates and the left side wall and the right side wall of the base;
the control piece consists of a control screw and a nut, a lower through hole for the control screw to pass through is arranged on the bottom of the base in a penetrating way, a lower groove which is coaxial with the lower through hole and is used for accommodating the tail part of the control screw is arranged on the outer bottom of the base, the tail part of the control screw can freely rotate in the lower groove, an upper through hole for the control screw to pass through is arranged on the upper cover in a penetrating way, an upper groove which is coaxial with the upper through hole and is used for accommodating the nut is arranged on the top of the upper cover, the nut can freely rotate in the upper groove, a through groove is arranged between the two diversion copper bars, a screw hole is arranged on the connecting piece, and the positions of the upper through hole, the screw hole, the through groove and the lower through hole correspond, the control screw penetrates through the lower through hole, is in threaded connection with the screw hole after penetrating through the through groove, is in non-screwed connection with the nut after penetrating through the upper through hole, and is made to rotate, and the control screw rotates to drive the nut to rotate, so that the connecting sheet moves upwards or downwards in the limiting cavity relative to the control screw.
2. A terminal for measuring and afterflowing according to claim 1, characterized in that the width of the flow guiding copper bar is 6 mm and the thickness is 1 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040429 | 2019-01-16 | ||
| CN2019100404296 | 2019-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110247207A CN110247207A (en) | 2019-09-17 |
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| CN113484554B (en) * | 2021-07-15 | 2023-03-14 | 贵州电网有限责任公司 | Experimental terminal box of electric energy meter |
| CN217605934U (en) * | 2022-07-20 | 2022-10-18 | 宁德时代新能源科技股份有限公司 | Base, voltage sampling subassembly and voltage testing arrangement |
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| CN2906960Y (en) * | 2006-04-07 | 2007-05-30 | 李庆兰 | Four-wire system battery electrode connecting plugin |
| CN101072143A (en) * | 2006-05-12 | 2007-11-14 | 杭州华三通信技术有限公司 | Ethernet two-line/four-line converting device and a line distributor |
| CN201060217Y (en) * | 2007-06-01 | 2008-05-14 | 姜琦 | Electrical energy meter multifunctional wiring box |
| CN207849185U (en) * | 2017-10-10 | 2018-09-11 | 华荣科技股份有限公司 | A kind of industrial high protection emergency light |
| CN207542419U (en) * | 2017-10-23 | 2018-06-26 | 林可可 | With multipurpose simultaneously can rapid translating wiring construction instrument |
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