CA2828327C - Hot-plugging connection terminal for electrical energy meter - Google Patents
Hot-plugging connection terminal for electrical energy meter Download PDFInfo
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- CA2828327C CA2828327C CA2828327A CA2828327A CA2828327C CA 2828327 C CA2828327 C CA 2828327C CA 2828327 A CA2828327 A CA 2828327A CA 2828327 A CA2828327 A CA 2828327A CA 2828327 C CA2828327 C CA 2828327C
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- Prior art keywords
- energy meter
- terminal
- electric energy
- hot
- plugging
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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
-
- 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
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
Abstract
A hot-plugging connection terminal for an electrical energy meter comprises an electrical energy meter terminal and a base terminal, wherein the electrical energy meter terminal comprises a metal conductor (1) and an insulator (2), the metal conductor (1) being longer than the insulator (2); and the base terminal comprises a terminal connection portion and a housing portion, the terminal connection portion comprising two elastic metal conductors symmetrically disposed and in contact with each other. The hot-plugging connection terminal for an electrical energy meter has a simple structure without changing the internal construction of the main body of any existing electrical energy meter, and is cheap to produce. The beneficial effects thereof are that the power supply is not disrupted when replacing an electrical energy meter, it is more difficult to steal electricity, and electrical energy meter replacement is more efficient.
Description
HOT-PLUGGING CONNECTION TERMINAL FOR ELECTRICAL ENERGY
METER
[00011 The present application claims priority to Chinese Patent Application No.
201110046950.4 filed with the Chinese Patent Office on February 28, 2011 and entitled "HOT-S PLUGGING CONNECTION TERMINAL FOR ELECTRICAL ENERGY METER".
FIELD OF THE INVENTION
METER
[00011 The present application claims priority to Chinese Patent Application No.
201110046950.4 filed with the Chinese Patent Office on February 28, 2011 and entitled "HOT-S PLUGGING CONNECTION TERMINAL FOR ELECTRICAL ENERGY METER".
FIELD OF THE INVENTION
[0002] The application relates to a device providing a hot-plugging connecting mode for an electric energy meter, and particularly to a hot-plugging connecting terminal for an electric energy meter.
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION
[0003] Presently, a known electric energy meter connecting terminal is located at a bottom part of an electric energy meter and is exposed, and is connected with wires into or out of the electric energy meter through tightening screws. However, such connecting mode induces following problems and disadvantages: 1. the power supply to a user needs to be interrupted during replacing the electric energy meter, which may cause inconvenience and some losses to the user;
2. the exposed connecting terminals provides an opportunity of electricity stealing for criminals, which may cause economic loss to power supply enterprises or other users; and 3. the connection between the electric energy meter and the wires into/out of the electric energy meter are achieved manually by tightening screws one by one, which has some disadvantage such as low speed and low efficiency, even causing the possibility of misconnection in the circuit.
SUMMARY OF THE INVENTION
There is provided in the application a hot-plugging connecting terminal for an electric energy meter, in order to solve problems in the conventional electric energy meter that power supply needs to be interrupted in replacing operation, an electric energy meter terminal is exposed and an operation of replacing of the electric energy meter is complicated with a lower efficiency.
[0005] A technical solution of the invention for solving the above problems is to provide a hot-plugging connecting terminal for an electric energy meter, including an electric energy meter terminal and a base terminal, wherein the electric energy meter terminal includes a metallic conductor and an insulator, the metallic conductor is longer than the insulator; the base terminal includes a terminal connecting part and a housing part, the terminal connecting part includes two elastic metallic conductors symmetrically arranged and in contact with each other.
[0006] Preferably, the metallic conductor includes a straight part and a bending part, the straight part and the bending part being of an integral structure, and the insulator is of a straight structure;
wherein the straight part of the metallic conductor and the insulator closely snuggle against each other; and the bending part of the metallic conductor covers a front end part of the insulator.
[0007] Preferably, the two elastic metallic conductors are two J-shaped elastic metallic conductors arranged oppositely to each other.
[0008] Preferably, the electric energy meter terminal has a thickness greater than that of the base terminal.
[0009] Preferably, the housing part includes four housing side walls, and a housing upper wall and a housing lower wall each adjoining the four housing side walls; and the terminal connecting part closely abuts against the four housing side walls.
[0010] Preferably, the housing upper wall and/or the housing lower wall are/is each provided with a groove guiding rail configured to restrict entering and exiting directions of the electric energy meter terminal.
[0011] Preferably, the housing is made of insulating material.
[0012] Preferably, the electric energy meter terminal is arranged in a groove of a lower part of the electric energy meter.
[0013] Preferably, the base terminal is provided with a protrusion fitted with the groove of the lower part of the electric energy meter.
[0014] Since the hot-plugging terminal is of a modular design, various connecting modes, such as a single-phase connecting mode, a three-phase connecting mode and the like, can be achieved by increasing or decreasing the number of the electric energy meter terminals and the base terminals and changing the position thereof. Thus, the cost of production can be reduced. Since the terminal can be inserted or pulled out without the need for using any tool, and an operator do not directly touch the conducting part, the speed of replacing of the electric energy meter is increased; a technical requirement is lowered; and safety of the operator can be ensured. Furthermore, since steps of manually selecting circuit, tightening with screws and so on are omitted, the electric energy meter terminal can be provide on a back part of the electric energy meter, and the circuit connected to the base terminal can also be arranged on a back face of the base. Further, with a protruding edge around the base and the housing of the electric energy meter, all the terminals and the circuit are entirely shielded, which increases difficulty in electricity stealing.
[0015] The application has beneficial effects that, the power supply is not interrupted during displacing the electric energy meter, the difficulty in electricity stealing is increased, and the efficiency of replacing of the electric energy meter is increased. The hot-plugging connecting terminal has a simple structure, without changing the internal construction of a body of the existing electric energy meter, thereby reducing the cost of production.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The application will be further described in conjunction with drawings and embodiments.
[0017] Figure 1 is a structural view of an electric energy meter terminal.
[0018] Figure 2 is a structural view of a base terminal.
[0019] Figure 3 is a bottom view showing a state of a first step of a process of connecting the electric energy meter terminal and the base terminal.
[0020] Figure 4 is a bottom view showing a state of a second step of the process of connecting the electric energy meter terminal and the base terminal.
[0021] Figure 5 is a front view of Figure 3.
[0022] Figure 6 is a structural view of the base terminal and a housing.
[0023] Figure 7 is an arrangement diagram of the electric energy meter terminal.
[0024] Figure 8 is an arrangement diagram of the base terminal.
[0025] Figure 9 is an isometric view of Figure 7.
DETAILED DESCRIPTION
[0026] It should be noted that the terms "front" and "rear" used herein refer to, in a process of connecting an electric energy meter terminal and a base terminal, a firstly contacting part and a finally contacting part, respectively.
[0027] Referring to Figures 1, 2 and 6, Figure 1 is a structural view of an electric energy meter terminal; Figure 2 is a structural view of a base terminal; and Figure 6 is a structural view of the base terminal and a housing.
[0028] A hot-plugging connecting terminal for an electric energy meter according to the application includes an electric energy meter terminal and a base terminal.
The electric energy meter terminal includes a metallic conductor 1 and an insulator 2. The electric energy meter terminal is a hot-plugging terminal plug, and the base terminal is a hot-plugging terminal socket.
[0029] The metallic conductor 1 includes a straight part and a bending part.
The straight part and the bending part are of an integral structure. The insulator 2 is of a straight structure.
2. the exposed connecting terminals provides an opportunity of electricity stealing for criminals, which may cause economic loss to power supply enterprises or other users; and 3. the connection between the electric energy meter and the wires into/out of the electric energy meter are achieved manually by tightening screws one by one, which has some disadvantage such as low speed and low efficiency, even causing the possibility of misconnection in the circuit.
SUMMARY OF THE INVENTION
There is provided in the application a hot-plugging connecting terminal for an electric energy meter, in order to solve problems in the conventional electric energy meter that power supply needs to be interrupted in replacing operation, an electric energy meter terminal is exposed and an operation of replacing of the electric energy meter is complicated with a lower efficiency.
[0005] A technical solution of the invention for solving the above problems is to provide a hot-plugging connecting terminal for an electric energy meter, including an electric energy meter terminal and a base terminal, wherein the electric energy meter terminal includes a metallic conductor and an insulator, the metallic conductor is longer than the insulator; the base terminal includes a terminal connecting part and a housing part, the terminal connecting part includes two elastic metallic conductors symmetrically arranged and in contact with each other.
[0006] Preferably, the metallic conductor includes a straight part and a bending part, the straight part and the bending part being of an integral structure, and the insulator is of a straight structure;
wherein the straight part of the metallic conductor and the insulator closely snuggle against each other; and the bending part of the metallic conductor covers a front end part of the insulator.
[0007] Preferably, the two elastic metallic conductors are two J-shaped elastic metallic conductors arranged oppositely to each other.
[0008] Preferably, the electric energy meter terminal has a thickness greater than that of the base terminal.
[0009] Preferably, the housing part includes four housing side walls, and a housing upper wall and a housing lower wall each adjoining the four housing side walls; and the terminal connecting part closely abuts against the four housing side walls.
[0010] Preferably, the housing upper wall and/or the housing lower wall are/is each provided with a groove guiding rail configured to restrict entering and exiting directions of the electric energy meter terminal.
[0011] Preferably, the housing is made of insulating material.
[0012] Preferably, the electric energy meter terminal is arranged in a groove of a lower part of the electric energy meter.
[0013] Preferably, the base terminal is provided with a protrusion fitted with the groove of the lower part of the electric energy meter.
[0014] Since the hot-plugging terminal is of a modular design, various connecting modes, such as a single-phase connecting mode, a three-phase connecting mode and the like, can be achieved by increasing or decreasing the number of the electric energy meter terminals and the base terminals and changing the position thereof. Thus, the cost of production can be reduced. Since the terminal can be inserted or pulled out without the need for using any tool, and an operator do not directly touch the conducting part, the speed of replacing of the electric energy meter is increased; a technical requirement is lowered; and safety of the operator can be ensured. Furthermore, since steps of manually selecting circuit, tightening with screws and so on are omitted, the electric energy meter terminal can be provide on a back part of the electric energy meter, and the circuit connected to the base terminal can also be arranged on a back face of the base. Further, with a protruding edge around the base and the housing of the electric energy meter, all the terminals and the circuit are entirely shielded, which increases difficulty in electricity stealing.
[0015] The application has beneficial effects that, the power supply is not interrupted during displacing the electric energy meter, the difficulty in electricity stealing is increased, and the efficiency of replacing of the electric energy meter is increased. The hot-plugging connecting terminal has a simple structure, without changing the internal construction of a body of the existing electric energy meter, thereby reducing the cost of production.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The application will be further described in conjunction with drawings and embodiments.
[0017] Figure 1 is a structural view of an electric energy meter terminal.
[0018] Figure 2 is a structural view of a base terminal.
[0019] Figure 3 is a bottom view showing a state of a first step of a process of connecting the electric energy meter terminal and the base terminal.
[0020] Figure 4 is a bottom view showing a state of a second step of the process of connecting the electric energy meter terminal and the base terminal.
[0021] Figure 5 is a front view of Figure 3.
[0022] Figure 6 is a structural view of the base terminal and a housing.
[0023] Figure 7 is an arrangement diagram of the electric energy meter terminal.
[0024] Figure 8 is an arrangement diagram of the base terminal.
[0025] Figure 9 is an isometric view of Figure 7.
DETAILED DESCRIPTION
[0026] It should be noted that the terms "front" and "rear" used herein refer to, in a process of connecting an electric energy meter terminal and a base terminal, a firstly contacting part and a finally contacting part, respectively.
[0027] Referring to Figures 1, 2 and 6, Figure 1 is a structural view of an electric energy meter terminal; Figure 2 is a structural view of a base terminal; and Figure 6 is a structural view of the base terminal and a housing.
[0028] A hot-plugging connecting terminal for an electric energy meter according to the application includes an electric energy meter terminal and a base terminal.
The electric energy meter terminal includes a metallic conductor 1 and an insulator 2. The electric energy meter terminal is a hot-plugging terminal plug, and the base terminal is a hot-plugging terminal socket.
[0029] The metallic conductor 1 includes a straight part and a bending part.
The straight part and the bending part are of an integral structure. The insulator 2 is of a straight structure.
4 [0030] Specifically, the straight part of the metallic conductor 1 may be fixed with and snuggle against the insulator 2. The bending part of the metallic conductor 1 covers a front end part of the insulator 2.
[0031] Due to presence of the bending part of the metallic conductor 1, referring to Figure 1, the metallic conductor 1 is longer than the insulator 2. A front end part, i.e., the bending part of the metallic conductor 1 covers the front end part of the insulator 2.
Specifically, the front end part, i.e., the bending part of the metallic conductor 1 can be columnar in shape, with the front end part of the insulator 2 being inserted therein. The metallic conductor 1 is slightly longer than the insulator 2, so that it can be assured that a head part of the electric energy meter terminal (i.e., the hot-plugging terminal plug) is made of metallic material. A metallic surface and the insulator of the electric energy meter terminal correspond to two elastic metallic conductors 3, respectively. A rear end part (i.e. the straight part) of the metallic conductor I of the electric energy meter terminal is connected to a current coil of an electronic element.
[0032] The base terminal includes a terminal connecting part and a housing part 5. Referring to Figure 2, the terminal connecting part includes two elastic metallic conductors 3 which are symmetrically arranged and are in contact with each other.
[0033] In an embodiment shown in Figure 2, specifically, the two elastic metallic conductors 3 are two J-shaped elastic metallic conductors which are arranged oppositely.
The hooked ends of the two J-shaped elastic metallic conductors are in contact with and abut against each other, and are closely in contact with each other through a certain pressure.
Ends not in contact with each other of the two J-shaped elastic metallic conductors are each connected with load current in the circuit.
[0034] In order to clearly describe an insertion connection between the electric energy meter terminal and the base terminal, reference is made to Figures 3 and 4, wherein Figure 3 is a bottom view showing a state of a first step of a process of connecting the electric energy meter terminal and the base terminal, and Figure 4 is a bottom view showing a state of a second step of the process of connecting the electric energy meter terminal and the base
[0031] Due to presence of the bending part of the metallic conductor 1, referring to Figure 1, the metallic conductor 1 is longer than the insulator 2. A front end part, i.e., the bending part of the metallic conductor 1 covers the front end part of the insulator 2.
Specifically, the front end part, i.e., the bending part of the metallic conductor 1 can be columnar in shape, with the front end part of the insulator 2 being inserted therein. The metallic conductor 1 is slightly longer than the insulator 2, so that it can be assured that a head part of the electric energy meter terminal (i.e., the hot-plugging terminal plug) is made of metallic material. A metallic surface and the insulator of the electric energy meter terminal correspond to two elastic metallic conductors 3, respectively. A rear end part (i.e. the straight part) of the metallic conductor I of the electric energy meter terminal is connected to a current coil of an electronic element.
[0032] The base terminal includes a terminal connecting part and a housing part 5. Referring to Figure 2, the terminal connecting part includes two elastic metallic conductors 3 which are symmetrically arranged and are in contact with each other.
[0033] In an embodiment shown in Figure 2, specifically, the two elastic metallic conductors 3 are two J-shaped elastic metallic conductors which are arranged oppositely.
The hooked ends of the two J-shaped elastic metallic conductors are in contact with and abut against each other, and are closely in contact with each other through a certain pressure.
Ends not in contact with each other of the two J-shaped elastic metallic conductors are each connected with load current in the circuit.
[0034] In order to clearly describe an insertion connection between the electric energy meter terminal and the base terminal, reference is made to Figures 3 and 4, wherein Figure 3 is a bottom view showing a state of a first step of a process of connecting the electric energy meter terminal and the base terminal, and Figure 4 is a bottom view showing a state of a second step of the process of connecting the electric energy meter terminal and the base
5 terminal.
[0035] Since in a series circuit, the same current flows through all connected devices, the current in the whole circuit may be interrupted if the circuit is disconnected at one point, which means that electronic elements connected in series cannot normally work.
The hot-plugging connecting terminal for the electric energy meter according to the invention is a connecting device which is used to electrically connect an electronic element to a series circuit or disconnect the same from the series circuit without interrupting current.
[0036] When no plug is inserted into the base terminal, i.e., the hot-plugging terminal socket of the invention, current in the circuit flows through the two elastic metallic conductors 3 of the base terminal which are symmetrically arranged and are in contact with each other.
[0037] In an embodiment shown in Figure 3, a state in which a front end of the electric energy meter terminal is just in contact with the base terminal is specifically shown. In this state, the current in the original circuit is partially branched through the electric energy meter with the original circuit remaining connected.
[0038] In an initial stage of insertion of the electric energy meter terminal (i.e., the hot-plugging terminal plug) into the base terminal (i.e., the hot-plugging terminal socket), one of the two elastic metallic conductors 3 is connected in parallel to an electronic element connected to the electric energy meter terminal (i.e., the hot-plugging terminal plug), and thus the sum of the current flowing through the one of the two elastic metallic conductors (tongue sheets) and the current flowing through the electronic element is the current of the circuit.
[0039] When the electric energy meter terminal (i.e., the hot-plugging terminal plug) is further inserted, the two elastic metallic conductors 3 (tongue sheets) are separated. However, since the head part (the front end part) of the electric energy meter terminal (i.e., the hot-plugging terminal plug) is made of metallic material, the current remains flow through the two elastic metallic conductors 3 (tongue sheets) and the electronic element.
[0040] After the electric energy meter terminal (i.e., the hot-plugging terminal plug) is completely inserted into the base terminal (i.e., the hot-plugging terminal socket), the insulating part of the electric energy meter terminal (i.e., the hot-plugging terminal plug)
[0035] Since in a series circuit, the same current flows through all connected devices, the current in the whole circuit may be interrupted if the circuit is disconnected at one point, which means that electronic elements connected in series cannot normally work.
The hot-plugging connecting terminal for the electric energy meter according to the invention is a connecting device which is used to electrically connect an electronic element to a series circuit or disconnect the same from the series circuit without interrupting current.
[0036] When no plug is inserted into the base terminal, i.e., the hot-plugging terminal socket of the invention, current in the circuit flows through the two elastic metallic conductors 3 of the base terminal which are symmetrically arranged and are in contact with each other.
[0037] In an embodiment shown in Figure 3, a state in which a front end of the electric energy meter terminal is just in contact with the base terminal is specifically shown. In this state, the current in the original circuit is partially branched through the electric energy meter with the original circuit remaining connected.
[0038] In an initial stage of insertion of the electric energy meter terminal (i.e., the hot-plugging terminal plug) into the base terminal (i.e., the hot-plugging terminal socket), one of the two elastic metallic conductors 3 is connected in parallel to an electronic element connected to the electric energy meter terminal (i.e., the hot-plugging terminal plug), and thus the sum of the current flowing through the one of the two elastic metallic conductors (tongue sheets) and the current flowing through the electronic element is the current of the circuit.
[0039] When the electric energy meter terminal (i.e., the hot-plugging terminal plug) is further inserted, the two elastic metallic conductors 3 (tongue sheets) are separated. However, since the head part (the front end part) of the electric energy meter terminal (i.e., the hot-plugging terminal plug) is made of metallic material, the current remains flow through the two elastic metallic conductors 3 (tongue sheets) and the electronic element.
[0040] After the electric energy meter terminal (i.e., the hot-plugging terminal plug) is completely inserted into the base terminal (i.e., the hot-plugging terminal socket), the insulating part of the electric energy meter terminal (i.e., the hot-plugging terminal plug)
6 closely snuggle against a surface of one of the elastic metallic conductors 3 (tongue sheets) of the base terminal (i.e., the hot-plugging terminal socket), while the metallic part of the front end part of the electric energy meter terminal (i.e., the hot-plugging terminal plug) is away from the elastic metallic conductor 3 (tongue sheet). Thus, the current is interrupted between the two elastic metallic conductors 3 (tongue sheets), and the current in the circuit is completely flow through the connected electronic element via the electric energy meter terminal, thereby electrically connecting the electronic element to the series circuit without interrupting the current in the circuit. As shown in Figure 4, the connection between the electric energy meter terminal and the base terminal is completed.
[0041] At this moment, the circuit is changed in such a way that the metallic conductor 1 of the electric energy meter terminal communicates with the elastic metallic conductor 3 closely snuggling against the metallic conductor 1 and that the original circuit is disconnected.
[0042] The process of pulling the electronic element out of the circuit is the reverse of the above inserting process, and thus will not be described in detail.
[0043] With the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention, the current in the circuit is not interrupted during insertion or extraction of the electronic element into or from the series circuit.
[0044] Specifically, referring to Figure 6, the housing part 5 may include four housing side walls, and a housing upper wall 4 and a housing lower wall 5 each adjoining the four housing side walls. The terminal connecting part closely abuts against the four housing side walls.
Specifically, the housing part 5 can be made of insulating material.
[0045] The housing upper wall 4 can be provided with a groove guiding rail.
Specifically, the groove guiding rail may be arranged along a center line of the housing upper wall 4. The groove guiding rail is used to restrict entering and exiting directions of the electric energy meter terminal.
[0046] The housing lower wall 5 can also be provided with a groove guiding rail.
Specifically, the groove guiding rail may be arranged along a center line of the housing lower wall 5. The groove guiding rail is used to restrict entering and exiting directions of the electric
[0041] At this moment, the circuit is changed in such a way that the metallic conductor 1 of the electric energy meter terminal communicates with the elastic metallic conductor 3 closely snuggling against the metallic conductor 1 and that the original circuit is disconnected.
[0042] The process of pulling the electronic element out of the circuit is the reverse of the above inserting process, and thus will not be described in detail.
[0043] With the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention, the current in the circuit is not interrupted during insertion or extraction of the electronic element into or from the series circuit.
[0044] Specifically, referring to Figure 6, the housing part 5 may include four housing side walls, and a housing upper wall 4 and a housing lower wall 5 each adjoining the four housing side walls. The terminal connecting part closely abuts against the four housing side walls.
Specifically, the housing part 5 can be made of insulating material.
[0045] The housing upper wall 4 can be provided with a groove guiding rail.
Specifically, the groove guiding rail may be arranged along a center line of the housing upper wall 4. The groove guiding rail is used to restrict entering and exiting directions of the electric energy meter terminal.
[0046] The housing lower wall 5 can also be provided with a groove guiding rail.
Specifically, the groove guiding rail may be arranged along a center line of the housing lower wall 5. The groove guiding rail is used to restrict entering and exiting directions of the electric
7 energy meter terminal.
[0047] For assuring an accurate guiding, both of the housing upper wall 4 and the housing lower wall 5 can be provided with corresponding groove guiding rails.
Specifically, the groove guiding rails can respectively arranged along the center lines of the housing upper wall 4 and the housing lower wall 5. The groove guiding rails are used to restrict the entering and exiting directions of the electric energy meter terminal.
[0048] An opening allowing the electric energy meter terminal to enter is provided in the center of a housing front wall. Two ends of a housing rear wall can be each provided with an opening through which a wire is led out.
[0049] Reference is made to Figure 5, which is a front view of Figure 3. The electric energy meter terminal has a thickness greater than that of the base terminal, that is to say, the height of the electric energy meter terminal is slightly higher than that of the base terminal. The purpose of such a design is that on one hand, a poor contact which may occur between the electric energy meter terminal and the base terminal is avoided, and on the other hand, the electric energy meter terminal can be engaged with the groove guiding rail of the housing of the base terminal to constrain a correct connection of the electric energy meter terminal.
[0050] Reference is made to Figures 7 and 9, wherein Figure 7 is an arrangement diagram of the electric energy meter terminal, and Figure 9 is an isometric view of Figure 7.
[0051] Specifically, the electric energy meter terminal can be arranged in a groove of a lower part of the electric energy meter.
[0052] Reference is made to Figure 8, which is an arrangement diagram of the base terminal.
The base terminal is arranged at a position of a lower part of a base corresponding to the electric energy meter terminal. The base terminal is provided with a protrusion fitted with the groove of the lower part of the electric energy meter. With the engagement between the groove of the lower part of the electric energy meter and the corresponding protrusion of the base, the terminal of the electric energy meter and the terminal of the base are correctly connected, and the connecting terminals are shielded. Besides, the protrusion of the base may play a role in strengthening and fixing and shielding the wire.
[0047] For assuring an accurate guiding, both of the housing upper wall 4 and the housing lower wall 5 can be provided with corresponding groove guiding rails.
Specifically, the groove guiding rails can respectively arranged along the center lines of the housing upper wall 4 and the housing lower wall 5. The groove guiding rails are used to restrict the entering and exiting directions of the electric energy meter terminal.
[0048] An opening allowing the electric energy meter terminal to enter is provided in the center of a housing front wall. Two ends of a housing rear wall can be each provided with an opening through which a wire is led out.
[0049] Reference is made to Figure 5, which is a front view of Figure 3. The electric energy meter terminal has a thickness greater than that of the base terminal, that is to say, the height of the electric energy meter terminal is slightly higher than that of the base terminal. The purpose of such a design is that on one hand, a poor contact which may occur between the electric energy meter terminal and the base terminal is avoided, and on the other hand, the electric energy meter terminal can be engaged with the groove guiding rail of the housing of the base terminal to constrain a correct connection of the electric energy meter terminal.
[0050] Reference is made to Figures 7 and 9, wherein Figure 7 is an arrangement diagram of the electric energy meter terminal, and Figure 9 is an isometric view of Figure 7.
[0051] Specifically, the electric energy meter terminal can be arranged in a groove of a lower part of the electric energy meter.
[0052] Reference is made to Figure 8, which is an arrangement diagram of the base terminal.
The base terminal is arranged at a position of a lower part of a base corresponding to the electric energy meter terminal. The base terminal is provided with a protrusion fitted with the groove of the lower part of the electric energy meter. With the engagement between the groove of the lower part of the electric energy meter and the corresponding protrusion of the base, the terminal of the electric energy meter and the terminal of the base are correctly connected, and the connecting terminals are shielded. Besides, the protrusion of the base may play a role in strengthening and fixing and shielding the wire.
8 [0053] The hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention can have a mechanism for locking and positioning after the plug is completely inserted into the base.
[0054] The hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention can be applied to an electronic element that needs to be connected in series into a circuit, such as an electric energy meter, an ammeter and the like, by integrally incorporating the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention into the electronic element, the electronic element can be electrically inserted into or pulled out of a series circuit, without influencing the application of current to other electronic elements in the circuit.
[0055] The hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention can be applied to a structure of an electric energy meter, so that continuous power supply to users is not interrupted during replacing of the electric energy meter. Furthermore, in the hot-plugging operation, no specific tool is needed, and working efficiency and security of the replacing operation can be greatly improved.
[0056] Since the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention is of a modular design, various connecting modes, such as a single-phase connecting mode, a three-phase connecting mode and the like, can be achieved by increasing or decreasing the number of the electric energy meter terminals and the base terminals and changing the position thereof Thus, the cost of production can be reduced.
Since the electric energy meter terminal can be inserted or pulled out without the need for using any tool, and an operator do not directly touch the conducting part, the speed of replacing of the electric energy meter is increased; a technical requirement is lowered; and safety of the operator can be ensured. Furthermore, since steps of manually selecting circuit, tightening with screws and so on are omitted, the electric energy meter terminal can be provide on a back part of the electric energy meter, and the circuit connected to the base terminal can also be arranged on a back face of the base. Further, with a protruding edge around the base and the housing of the electric energy meter, all the terminals and the circuit
[0054] The hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention can be applied to an electronic element that needs to be connected in series into a circuit, such as an electric energy meter, an ammeter and the like, by integrally incorporating the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention into the electronic element, the electronic element can be electrically inserted into or pulled out of a series circuit, without influencing the application of current to other electronic elements in the circuit.
[0055] The hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention can be applied to a structure of an electric energy meter, so that continuous power supply to users is not interrupted during replacing of the electric energy meter. Furthermore, in the hot-plugging operation, no specific tool is needed, and working efficiency and security of the replacing operation can be greatly improved.
[0056] Since the hot-plugging connecting terminal for the electric energy meter according to the embodiment of the invention is of a modular design, various connecting modes, such as a single-phase connecting mode, a three-phase connecting mode and the like, can be achieved by increasing or decreasing the number of the electric energy meter terminals and the base terminals and changing the position thereof Thus, the cost of production can be reduced.
Since the electric energy meter terminal can be inserted or pulled out without the need for using any tool, and an operator do not directly touch the conducting part, the speed of replacing of the electric energy meter is increased; a technical requirement is lowered; and safety of the operator can be ensured. Furthermore, since steps of manually selecting circuit, tightening with screws and so on are omitted, the electric energy meter terminal can be provide on a back part of the electric energy meter, and the circuit connected to the base terminal can also be arranged on a back face of the base. Further, with a protruding edge around the base and the housing of the electric energy meter, all the terminals and the circuit
9 are entirely shielded, which increases difficulty in electricity stealing.
[0057] The hot-plugging connecting terminal for the electric energy meter according to the invention enables uninterruptedness of the power supply during displacing the electric energy meter, increases the difficulty in electricity stealing, and improves the efficiency of replacing of the electric energy meter. The hot-plugging connecting terminal has a simple structure, without changing the internal construction of a body of the existing electric energy meter, thereby reducing the cost of production.
[0057] The hot-plugging connecting terminal for the electric energy meter according to the invention enables uninterruptedness of the power supply during displacing the electric energy meter, increases the difficulty in electricity stealing, and improves the efficiency of replacing of the electric energy meter. The hot-plugging connecting terminal has a simple structure, without changing the internal construction of a body of the existing electric energy meter, thereby reducing the cost of production.
Claims (9)
1. A hot-plugging connecting terminal for an electric energy meter, comprising an electric energy meter terminal and a base terminal which are in an insertion connection, wherein the electric energy meter terminal comprises a metallic conductor (1) and an insulator (2), the metallic conductor (1) is longer than the insulator (2); the base terminal comprises a terminal connecting part and a housing part (5), the terminal connecting part comprises two elastic metallic conductors (3) which are symmetrically arranged and are in contact with each other, wherein the metallic conductor (1) comprises a straight part and a bending part, the straight part and the bending part are of an integral structure, and the insulator (2) is of a straight structure;
the straight part of the metallic conductor (1) and the insulator (2) closely snuggle against each other; and the bending part of the metallic conductor (1) covers a front end part of the insulator.
the straight part of the metallic conductor (1) and the insulator (2) closely snuggle against each other; and the bending part of the metallic conductor (1) covers a front end part of the insulator.
2. The hot-plugging connecting terminal for the electric energy meter according to claim 1, wherein the two elastic metallic conductors (3) are two J-shaped elastic metallic conductors arranged oppositely to each other.
3. The hot-plugging connecting terminal for the electric energy meter according to claim 2, wherein the electric energy meter terminal has a thickness greater than that of the base terminal.
4. The hot-plugging connecting terminal for the electric energy meter according to claim 1, wherein the electric energy meter terminal has a thickness greater than that of the base terminal.
5. The hot-plugging connecting terminal for the electric energy meter according to claim 1, wherein the housing part (5) comprises four housing side walls, and a housing upper wall and a housing lower wall each adjoining the four housing side walls; and wherein the terminal connecting part closely abuts against the four housing side walls.
6. The hot-plugging connecting terminal for the electric energy meter according to claim 5, wherein the housing upper wall and/or the housing lower wall are/is each provided with a groove guiding rail configured to restrict entering and exiting directions of the electric energy meter terminal.
7. The hot-plugging connecting terminal for the electric energy meter according to claim 5, wherein the housing part (5) is made of insulating material.
8. The hot-plugging connecting terminal for the electric energy meter according to claim 1, wherein the electric energy meter terminal is arranged in a groove of a lower part of the electric energy meter.
9. The hot-plugging connecting terminal for the electric energy meter according to claim 8, wherein the base terminal is provided with a protrusion fitted with the groove of the lower part of the electric energy meter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046950.4 | 2011-02-28 | ||
| CN2011100469504A CN102169131A (en) | 2011-02-28 | 2011-02-28 | Hot swap binding post of electric energy meter |
| PCT/CN2011/080224 WO2012116547A1 (en) | 2011-02-28 | 2011-09-27 | Hot-plugging connection terminal for electrical energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2828327A1 CA2828327A1 (en) | 2012-09-07 |
| CA2828327C true CA2828327C (en) | 2016-10-18 |
Family
ID=44490368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2828327A Expired - Fee Related CA2828327C (en) | 2011-02-28 | 2011-09-27 | Hot-plugging connection terminal for electrical energy meter |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102169131A (en) |
| CA (1) | CA2828327C (en) |
| WO (1) | WO2012116547A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169131A (en) * | 2011-02-28 | 2011-08-31 | 魏梦柏 | Hot swap binding post of electric energy meter |
| CN103823093B (en) * | 2014-03-11 | 2016-08-10 | 浙江天顺玻璃钢有限公司 | Ammeter pluggable terminals and ammeter |
| CN104515882A (en) * | 2014-12-05 | 2015-04-15 | 浙江共同电子科技有限公司 | Electricity meter connecting plug with internal expansion spring |
| CN104459245A (en) * | 2014-12-19 | 2015-03-25 | 威胜集团有限公司 | Plug type electric energy meter installing base |
| CN108226592B (en) * | 2018-02-23 | 2020-11-06 | 南京飞腾电子科技有限公司 | Wiring structure and electric energy meter |
| CN111650411A (en) * | 2020-07-16 | 2020-09-11 | 广东电网有限责任公司 | Joint junction box and electric energy metering device |
| CN113406553B (en) * | 2021-05-12 | 2022-05-17 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Electric energy meter detection device and detection system |
| CN114280345A (en) * | 2021-12-21 | 2022-04-05 | 深圳供电局有限公司 | Ammeter case of wiring in advance |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04160778A (en) * | 1990-10-22 | 1992-06-04 | Hitachi Ltd | Hot plug insertion/pull-out connector |
| US5762522A (en) * | 1996-12-20 | 1998-06-09 | Ekstrom Industries, Inc. | Fused jaw blade for watthour meter socket adapter |
| CN201053979Y (en) * | 2007-05-22 | 2008-04-30 | 苏州工业园区和顺电气有限公司 | Inductor type three-phase four-line electric energy metering device for preventing electricity theft |
| CN101340045B (en) * | 2008-06-30 | 2011-01-12 | 上海市电力公司超高压输变电公司 | Method and apparatus capable of realizing safe hot plug of secondary current loop of transforming plant |
| CN201262992Y (en) * | 2008-08-18 | 2009-06-24 | 钱云雷 | Multipurpose closed type anti-theft electrical terminal |
| CN101403767B (en) * | 2008-09-11 | 2010-09-01 | 上海联能仪表有限公司 | Uninterrupted meter-changing structure of inserted electric energy meter |
| CN101762731A (en) * | 2008-12-02 | 2010-06-30 | 上海协霖电子有限公司 | Plug-in type connecting assembly of plug-in type electric energy meter |
| CN102169131A (en) * | 2011-02-28 | 2011-08-31 | 魏梦柏 | Hot swap binding post of electric energy meter |
| CN202002953U (en) * | 2011-02-28 | 2011-10-05 | 魏梦柏 | Hot-plug wire connecting terminal of electric energy meter |
-
2011
- 2011-02-28 CN CN2011100469504A patent/CN102169131A/en active Pending
- 2011-09-27 CA CA2828327A patent/CA2828327C/en not_active Expired - Fee Related
- 2011-09-27 WO PCT/CN2011/080224 patent/WO2012116547A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CA2828327A1 (en) | 2012-09-07 |
| CN102169131A (en) | 2011-08-31 |
| WO2012116547A1 (en) | 2012-09-07 |
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| EEER | Examination request |
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| MKLA | Lapsed |
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