Wiring terminal and electric energy meter using same

Abstract

The invention discloses a wiring terminal and an electric energy meter applying the wiring terminal, the wiring terminal comprises an insulating shell (1), an operating piece (2), a pressing piece (3) and a metal piece (4), the insulating shell (1) comprises two side walls (12) which are oppositely arranged left and right, a bottom wall (13) and a front side shielding wall (11), and the position of the front side shielding wall (11) is higher than that of the bottom wall (13). The insertion opening (1a) is defined by two side walls (12), a bottom wall (13) and a front side shielding wall (11); the front side shielding wall (11) is positioned between the insertion opening (1a) and the operation end (2a); when the operation end (2a) is subjected to external force to enable the operation part (2) to be switched between the first position and the second position, the position of the front side shielding wall (11) is kept unchanged relative to the position of the bottom wall (13). The device has the advantage of being convenient for installation personnel to accurately install the external lead.

Description

Technical Field

[0001] The invention relates to the technical field of wiring, and in particular to a wiring terminal and an electric energy meter using the wiring terminal. Background Art

[0002] Wiring terminals are widely used in electrical appliances, such as electric energy meters, power terminals, etc. External wires are electrically connected to corresponding electronic components through the wiring terminals.

[0003] There are different types of terminal blocks, some of which use screws to press the external wires, and some of which use springs to press the external wires. For example, the terminal block includes an insulating shell, an operating member, a pressing member, and a metal member. For ease of operation, some operating members need to be driven by inserting an external tool (such as a screwdriver), and some operating members can be operated by the user barehanded. Specifically, the insulating shell has an insertion port for inserting the external wire and is located on the front side; the operating member is movably arranged on the insulating shell and has an operating end; the pressing member is movably constrained in the insulating shell and is acted upon by the operating member; the metal member is arranged on the insulating shell and cooperates with the pressing member; the operating member is moved by an external force, thereby driving the pressing member to move, thereby having at least two states: in the locked state, the operating member is in the first position, and the pressing member is used to press the external wire against the metal member; in the unlocked state, the operating member is in the second position, and the pressing member is used to disengage from the external wire, so that the external wire can be separated from the metal member. When the operating member switches from the first position to the second position, the opening area of ​​the insertion port changes accordingly. When the operating member is in the second position, the opening area of ​​the insertion port is the largest and more parts are exposed.

[0004] The above structure has the following problem: when installing the external wire, the external wire should be inserted between the pressing member and the metal member. However, when the operating member is in the second position, a large portion between the operating member and the pressing member is exposed through the insertion port. The installer may not be able to distinguish the installation position of the external wire well. As a result, the installer may make an error and insert the external wire between the operating member and the pressing member or insert it into other positions by mistake. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a connection terminal for installation personnel to accurately install external wires in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide an electric energy meter using a wiring terminal.

[0007] The present invention adopts the following technical solution to solve the above-mentioned first technical problem: a wiring terminal, comprising

[0008] An insulating housing having an insertion port located at the front side for inserting an external wire;

[0009] An operating member, movably disposed on the insulating housing and having an operating end;

[0010] A pressing member, movably restrained in the insulating housing and acted upon by the operating member;

[0011] A metal piece, arranged on the insulating housing and matched with the pressing piece;

[0012] The operating end is acted upon by an external force to drive the operating member to move, thereby driving the pressing member to move, thereby having at least two states:

[0013] In the locked state, the operating member is in the first position, and the pressing member is used to press the external wire against the metal member;

[0014] In the unlocked state, the operating member is in the second position, and the pressing member is used to disengage from the external wire, so that the external wire can be separated from the metal member;

[0015] Features:

[0016] The insulating shell includes two side walls arranged opposite to each other, a bottom wall fixedly connected to the two side walls, and a front shielding wall fixedly connected to the front ends of the two side walls, the front shielding wall is located higher than the bottom wall, and the insertion port is surrounded by the two side walls, the bottom wall, and the front shielding wall;

[0017] The front shielding wall is located between the insertion port and the operating end;

[0018] When the operating end is subjected to an external force and the operating member is switched between the first position and the second position, the position of the front shielding wall remains unchanged relative to the position of the bottom wall.

[0019] In order to facilitate the operator to operate the external tool, the operating end of the operating member has a socket for inserting the external tool;

[0020] When the operating member is in the first position and no external wire is inserted between the pressing member and the metal member, the insertion hole extends upward. The peripheral portion of the terminal block has a relatively small operating space near its lower portion due to the external wire, etc., while the peripheral portion of the terminal block has a relatively large operating space near its upper portion. By setting a suitable insertion hole direction, it is convenient for external tools to be inserted, and for operators to drive the operating member to move, thereby reducing space interference.

[0021] In order to facilitate the pressing member to press the external wire, the pressing member has a first pressing portion for pressing the external wire against the metal member;

[0022] The metal piece has a limiting groove on one side for contacting the external wire. When the operating piece is in the first position and no external wire is inserted between the pressing piece and the metal piece, the first pressing portion is inserted into the limiting groove.

[0023] In this way, after the external wire is inserted, the first pressing portion exerts a greater pressing force on the external wire, making it easier for the pressing member to press the external wire against the metal member, ensuring that the external wire is firmly connected and does not slip off.

[0024] In order to set an upper limit on the position of the external wire, the pressing member has a limit plate extending downward from the front to the back, and the limit plate is used to set an upper limit on the external wire located below it. By setting the limit plate, the external wire is ensured to be in a preset position, otherwise the end of the external wire may be inserted upward to other positions, and the end of the external wire may explode and drop residue, thereby causing problems such as poor contact.

[0025] In order to limit the position of the external wire in front, the part of the pressing member used to press the external wire against the metal member is referred to as the pressing portion;

[0026] The insulating housing is provided with a limit rod extending left and right and used to prevent the external wire from continuing to move backward. The limit rod is located above the metal piece and adjacent to a side of the metal piece that is used to contact the external wire, and the limit rod is located behind the pressing portion in the locked state.

[0027] By setting the limit rod, ensure that the external wire is in a preset position, otherwise the end of the external wire may be inserted forward to other positions, and the end of the external wire may explode and drop residues, thereby causing problems such as poor contact.

[0028] Preferably, it also includes

[0029] A mounting seat, arranged in the insulating housing;

[0030] A connecting rod is movably disposed in the insulating housing;

[0031] The pressing member is rotatably connected to the mounting seat and one end of the operating member respectively;

[0032] The connecting rod is rotatably connected to the mounting seat and the other end of the operating member respectively;

[0033] The operating end is acted upon by an external force, so that the operating member drives the connecting rod and the pressing member to rotate, thereby switching the pressing member between a locked state and an unlocked state;

[0034] In the unlocked state, the front shielding wall is located at the front side of at least a part of the connecting rod. In this way, the front shielding wall shields at least a part of the connecting rod, which facilitates the installer to accurately insert the external wire between the pressing member and the metal member, and reduces the probability of inserting the external wire between the connecting rod and the operating member or other positions due to misoperation.

[0035] In order to further facilitate the installation personnel to accurately install the external wire, the pressing member has a first pressing portion for pressing the external wire against the metal member;

[0036] In the unlocked state, the position of the first pressing portion is higher than or equal to the position of the upper edge of the inner wall where the insertion port is located.

[0037] In this way, after the installer inserts the external wire through the insertion port, it reaches between the first pressing portion and the metal member, which further facilitates the installer to accurately install the external wire between the pressing member and the metal member to ensure that it is installed in place.

[0038] In order to press the external wire against the metal part, a part of the operating part or a part of the pressing part has elasticity, so that the pressing part has a tendency to press the external wire against the metal part. In this way, the corresponding parts have elasticity, which facilitates pressing the external wire against the metal part, and can be applied to external wires of different outer diameters.

[0039] In order to facilitate the user's barehand operation, when the operating member is in the first position and no external wire is inserted between the pressing member and the metal member, the operating member extends forward outside the front shielding wall and extends upward outside the two side walls. In this way, a larger portion of the operating member is located outside the insulating housing, making it easier for the user to operate the operating member barehanded.

[0040] The technical solution adopted by the present invention to solve the above second technical problem is: an electric energy meter, characterized in that: it uses the above-mentioned wiring terminal.

[0041] Compared with the prior art, the advantages of the present invention are: by setting a front shielding wall that remains unchanged in position relative to the bottom wall, during the switching of the operating member between the first position and the second position, the position of the front shielding wall is fixed to fix the size of the insertion port, the front shielding wall covers part of the structure, the area of ​​parts exposed through the insertion port is small, and the front shielding wall is located between the insertion port and the operating end, so that the insertion port and other areas are distinguished by the front shielding wall, which is convenient for installers to quickly determine the insertion position of the external wire, and convenient for installers to accurately insert the external wire through the insertion port and between the pressure piece and the metal piece, thereby reducing the probability of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of a plurality of connection terminals according to a first embodiment of the present invention;

[0043] Figure 2 for Figure 1 Schematic diagram of the terminal block inserting external tools and external wires;

[0044] Figure 3 for Figure 1 Schematic diagram of the terminal block from another angle;

[0045] Figure 4 for Figure 1 Exploded view of the terminal block;

[0046] Figure 5 It is a partial assembly diagram of a wiring terminal in accordance with an embodiment of the present invention;

[0047] Figure 6 for Figure 5 Cross-sectional view of the part;

[0048] Figure 7 for Figure 6 Schematic diagram of inserting parts into external tools and external wires;

[0049] Figure 8 for Figure 2 Cross-sectional view of the terminal block with external tools and external wires inserted;

[0050] Fig. 9 for Figure 1 Another exploded view of the terminal block;

[0051] Fig.10 for Figure 5 A schematic diagram of another state of the part;

[0052] Fig.11 for Fig.10 Cross-sectional view of the part;

[0053] Fig.12 for Fig.10 Exploded views of parts;

[0054] Fig.13 It is a three-dimensional schematic diagram of the pressing member in the first embodiment of the present invention;

[0055] Fig.14 It is a three-dimensional schematic diagram of the pressing member in the first embodiment of the present invention from another angle;

[0056] Fig.15 This is a schematic diagram of the positional relationship among the mounting seat, the limiting rod, and the metal member in the first embodiment of the present invention;

[0057] Fig.16 is a schematic diagram of multiple connection terminals according to the second embodiment of the present invention;

[0058] Fig.17 for Fig.16 Schematic diagram of the terminal block inserting external tools and external wires;

[0059] Fig.18 for Fig.16 Schematic diagram of the terminal block from another angle.

[0060] Fig.19 for Fig.17 Cross-sectional view of the terminal block with external tools and external wires inserted;

[0061] Fig. 20 for Fig.17 Cross-sectional view of the terminal block with external tools and external wires inserted. DETAILED DESCRIPTION

[0062] The present invention is further described in detail below with reference to the accompanying drawings.

[0063] See also Figure 1 to Figure 15 , which is a preferred embodiment of the present invention. The wiring terminal comprises an insulating housing 1, an operating member 2, a pressing member 3, a metal member 4, a connecting rod 5, and a mounting seat 6.

[0064] Among them, see Figure 1 , Figure 2 The insulating housing 1 has an insertion port 1a located at the front side for inserting the external wire 100. Specifically, the insulating housing 1 includes two side walls 12 arranged opposite to each other, a bottom wall 13 fixedly connected to the two side walls 12, and a front shielding wall 11 fixedly connected to the front ends of the two side walls 12. The position of the front shielding wall 11 is higher than the bottom wall 13. The insertion port 1a is surrounded by the two side walls 12, the bottom wall 13, and the front shielding wall 11.

[0065] See also Figures 1 to 11 The operating member 2 is movably arranged on the insulating housing 1, and the operating end 2a of the operating member 2 has a plug hole 21 for inserting an external tool (such as a screwdriver); the operating member 2 is located between the two side walls 12. Figure 6 , Fig.11 , Fig.12 The operating member 2 is composed of three parts, including a plastic shell 22, a metal part 23 with a certain elasticity and M-shaped inside the plastic shell 22, and a plastic part 24 that is adapted to the shape of the metal part 23 and is also partially M-shaped. The plastic part 24 also has a certain elasticity. The jack 21 runs through the plastic shell 22, the metal part 23, and the plastic part 24.

[0066] See also Figure 5 to Figure 7 , Figure 10 to Figure 14, the pressing member 3 is movably constrained in the insulating housing 1 and is acted upon by the operating member 2. The pressing member 3 has a first pressing portion 311 for pressing the external wire 100 against the metal member 4; the first pressing portion 311 has a plurality of action teeth 311a, and all action teeth 311a are distributed at intervals. In addition, the pressing member 3 has a second pressing portion 312 for pressing the external wire 100 against the metal member 4, and the second pressing portion 312 is in a pointed shape, so that the second pressing portion 312 exerts a greater pressure on the part of the external wire 100, which facilitates the pressing member 3 to press the external wire 100, ensuring that the external wire 100 is firmly connected and does not slip off. The part of the pressing member 3 used to press the external wire 100 against the metal member 4 is recorded as the pressing portion 31; the pressing portion 31 of this embodiment is the first pressing portion 311 and the second pressing portion 312 mentioned above. The insulating housing 1 is provided with a limit rod 7 extending left and right and used to prevent the external wire 100 from continuing to move backward. The limit rod 7 is located above the metal member 4 and adjacent to the side of the metal member 4 that is used to contact the external wire 100, and the limit rod 7 is located behind the pressing portion 31 in the locked state, that is, Figure 7 , the limiting rod 7 is located behind the second pressing portion 312. Figure 7 , Fig.11 The pressing member 3 has a limit plate 32 extending downward from the front to the rear, and the limit plate 32 is used to limit the external wire 100 located below it.

[0067] See also Figure 5 to Figure 7 , Figure 10 to Figure 12 The metal member 4 is disposed on the insulating housing 1 and cooperates with the pressing member 3. The metal member 4 has a limiting groove 41 on one side for contacting the external wire 100. The operating member 2 is in the first position and the external wire 100 is not inserted between the pressing member 3 and the metal member 4. Fig.11 In the state, the first pressing portion 311 is inserted into the limiting groove 41.

[0068] The operating end 2a is acted upon by an external force to drive the operating member 2 to move, thereby driving the pressing member 3 to move, so that the operating end 2a has two states:

[0069] In the locked state, the operating member 2 is in the first position (see Fig.11 ), the pressing member 3 is used to press the external wire 100 against the metal member 4;

[0070] In the unlocked state, the operating member 2 is in the second position (see Figure 6 ), the pressing member 3 is used to disengage from the external wire 100, so that the external wire 100 can be separated from the metal member 4.

[0071] See also Figure 5 , Fig.10The mounting seat 6 is arranged in the insulating housing 1. Specifically, the mounting seat 6 includes two mounting arms 61 spaced apart from each other, a bottom arm 62 arranged between the mounting arms 61, the metal member 4 is arranged on the bottom arm 62 and the two are relatively fixed, and the mounting arm 61 is used to constrain the pressing member 3 and the connecting rod 5 to rotate thereon.

[0072] See also Figure 5 to Figure 7 , Figure 10 to Figure 12 The connecting rod 5 is movably arranged in the insulating housing 1.

[0073] See also Figure 5 to Figure 7 , Figure 10 to Figure 12 The pressing member 3 is rotatably connected to the mounting seat 6 and one end of the operating member 2 respectively.

[0074] See also Figure 5 to Figure 7 , Figure 10 to Figure 12 , the connecting rod 5 is rotationally connected to the mounting seat 6 and the other end of the operating member 2 respectively. The rotational connection can specifically adopt existing structures such as hinges and ball head connections. The operating end 2a is acted upon by an external force, so that the operating member 2 drives the connecting rod 5 and the pressing member 3 to rotate, thereby switching the pressing member 3 between a locked state and an unlocked state. The wiring terminals of this embodiment form a four-bar linkage, which can be better applied to external wires with thicker outer diameters. For external wires with thicker outer diameters, the structure can firmly press the external wire 100 onto the metal member 4. Part of the operating member 2 of this embodiment is elastic (specifically the metal part 23 and the plastic part 24 of the operating member 2 mentioned above), and has a tendency for the pressing member 3 to press the external wire 100 onto the metal member 4; or part of the pressing member 3 is elastic.

[0075] See also Figure 1 , Figure 2 The front shielding wall 11 is located between the insertion port 1a and the operating end 2a; when the operating end 2a is subjected to an external force and the operating member 2 is switched between the first position and the second position, the position of the front shielding wall 11 relative to the position of the bottom wall 13 remains unchanged. Figure 8 In the unlocked state, the front shielding wall 11 is located on the front side of the connecting rod 5, and the position of the first pressing portion 311 is higher than the position of the upper edge 1b of the inner wall where the insertion port 1a is located. Alternatively, the position of the first pressing portion 311 may be equal to the position of the upper edge 1b of the inner wall where the insertion port 1a is located.

[0076] In order to facilitate the operator to operate the external tool 200, when the operating member 2 is in the first position and the external wire 100 is not inserted between the pressing member 3 and the metal member 4, the plug hole 21 extends upward. The plug hole 21 extending upward means that the plug hole 21 can extend obliquely upward ( Figure 1 ), the jack may extend vertically upward, or the jack may extend obliquely upward backward.

[0077] This embodiment also includes a terminal box, which includes the above-mentioned wiring terminals and end covers. Figure 1 Multiple terminal blocks are arranged side by side.

[0078] This embodiment also includes an electrical appliance, and the electrical appliance is applied with the above-mentioned terminal block. For example, the electrical appliance is an electric energy meter, a power terminal, etc. The terminal block is also applicable to other electrical appliances, and the number of the terminal blocks can be adjusted as needed, and one or more terminal blocks can be provided.

[0079] The working principle and usage process are as follows.

[0080] When the external wire 100 needs to be installed, the external tool 200 (such as a screwdriver) is inserted into the insertion hole 21 of the operating member 2, and the operating member 2 is rotated to make the operating member 2 in the second position (such as Figure 6 Then insert the external wire 100 through the insertion port 1a between the pressing member 3 and the metal member 4 (as shown in Figure 7 Then, the external tool 200 rotates the operating member 2 to make the operating member 2 in the first position, and the operating member 2 drives the connecting rod 5 and the pressing member 3 to move, so that the pressing member 3 presses the external wire 100 against the metal member 4, thus completing the installation of the external wire 100. In the process of inserting the external wire 100, the front cover wall 11 covers the external wire 100, the first pressing portion 311 is higher than the position of the upper edge 1b of the inner wall where the insertion port 1a is located, the upper limit of the limiting plate 32, and the rear limit of the limiting rod 7, which can facilitate the installation personnel to accurately install the external wire 100, ensure that the external wire 100 is in the preset position, and reduce the probability of the external wire 100 contacting other positions.

[0081] When the external wire 100 needs to be removed, the external tool 200 is inserted into the insertion hole 21 of the operating member 2, and the operating member 2 is rotated so that the operating member 2 is in the second position (such as Figure 7 As shown), the pressing member 3 is disengaged from the external wire 100, and the operator simply pulls the external wire 100 out of the insertion port 1a.

[0082] Embodiment 2:

[0083] See also Figures 16 to 20, the difference between this embodiment and embodiment 1 is that the shape and structure of the operating member 2 are different. When the operating member 2 is in the first position and no external wire 100 is inserted between the pressing member 3 and the metal member 4, the operating member 2 extends forwardly out of the front shielding wall 11, and the operating member 2 extends upwardly out of the two side walls 12. That is, the operating member of this embodiment extends further out of the insulating shell 1 than the operating member of embodiment 1, so that the operating member 2 can be rotated by the external tool 200 inserted into the jack 21, and can also be used as a wrench for the user to operate barehandedly. The user can directly pull the operating member 2, which can be suitable for different usage scenarios. In addition, for reinforcement, the plastic shell 22 in the operating member 2 has a plug-in portion 221 ( Fig. 20 ), the plug-in portion 221 is fixed to the plastic portion 24 by screws (not shown in the figure), and an insulating cover (not shown in the figure) is provided on the screw head. The other structures of the wiring terminal of this embodiment are the same as those of the first embodiment.

[0084] The embodiment also includes a terminal box, which includes the wiring terminal and an end cover (not shown in the figure) for covering all the wiring terminals. When the operating member 2 is in the first position and there is no external wire 100, the top of the operating member 2 is a horizontally extending plane 22 (from Fig.17 , Fig.18 This can avoid spatial interference with the inner wall of the end cover.

[0085] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A terminal block, comprising An insulating housing (1) having an insertion port (1a) located at the front side for inserting an external wire (100); An operating member (2) movably disposed on the insulating housing (1) and having an operating end (2a); A pressing member (3) is movably restrained in the insulating housing (1) and is acted upon by the operating member (2); A metal part (4) is arranged on the insulating housing (1) and cooperates with the pressing part (3); The operating end (2a) is acted upon by an external force to drive the operating member (2) to move, thereby driving the pressing member (3) to move, thereby having at least two states: In the locked state, the operating member (2) is in the first position, and the pressing member (3) is used to press the external wire (100) against the metal member (4); In the unlocked state, the operating member (2) is in the second position, and the pressing member (3) is used to disengage from the external wire (100), so that the external wire (100) can be separated from the metal member (4); Features: The insulating housing (1) comprises two side walls (12) arranged opposite to each other, a bottom wall (13) fixedly connected to the two side walls (12), and a front shielding wall (11) fixedly connected to the front ends of the two side walls (12), the front shielding wall (11) being located higher than the bottom wall (13), and the insertion opening (1a) being surrounded by the two side walls (12), the bottom wall (13), and the front shielding wall (11); The front shielding wall (11) is located between the insertion port (1a) and the operating end (2a); When the operating end (2a) is subjected to an external force to switch the operating member (2) between the first position and the second position, the position of the front shielding wall (11) remains unchanged relative to the position of the bottom wall (13).

2. The terminal block according to claim 1, characterized in that: The operating end (2a) of the operating member (2) has a socket (21) for inserting an external tool (200); When the operating member (2) is in the first position and no external wire (100) is inserted between the pressing member (3) and the metal member (4), the insertion hole (21) extends upward.

3. The terminal block according to claim 1, characterized in that: The pressing member (3) has a first pressing portion (311) for pressing the external wire (100) against the metal member (4); The metal member (4) has a limiting groove (41) on one side thereof for contacting the external wire (100); when the operating member (2) is in the first position and no external wire (100) is inserted between the pressing member (3) and the metal member (4), the first pressing portion (311) is inserted into the limiting groove (41).

4. The connection terminal according to claim 1, characterized in that: The pressing member (3) has a limiting plate (32) extending downward from the front to the rear, and the limiting plate (32) is used to limit the upper position of the external wire (100) located below it.

5. The connection terminal according to claim 1, characterized in that: The part of the pressing member (3) used for pressing the external wire (100) against the metal member (4) is referred to as the pressing portion (31); A limit rod (7) extending leftward and rightward and used to prevent the external wire (100) from continuing to move backward is arranged in the insulating housing (1); the limit rod (7) is located above the metal member (4) and adjacent to a side of the metal member (4) used for contacting the external wire (100); and the limit rod (7) is located behind the pressing portion (31) in a locked state.

6. The connection terminal according to claim 1, characterized in that: Also includes A mounting seat (6) is arranged inside the insulating housing (1); A connecting rod (5) movably arranged in the insulating housing (1); The pressing member (3) is rotatably connected to the mounting seat (6) and one end of the operating member (2) respectively; The connecting rod (5) is rotatably connected to the mounting seat (6) and the other end of the operating member (2) respectively; The operating end (2a) is acted upon by an external force, so that the operating member (2) drives the connecting rod (5) and the pressing member (3) to rotate, thereby switching the pressing member (3) between a locked state and an unlocked state; In the unlocked state, the front shielding wall (11) is located at least partially on the front side of the connecting rod (5).

7. The connection terminal according to claim 1, characterized in that: The pressing member (3) has a first pressing portion (311) for pressing the external wire (100) against the metal member (4); In the unlocked state, the position of the first pressing portion (311) is higher than or equal to the position of the upper edge (1b) of the inner wall where the insertion opening (1a) is located.

8. The connecting terminal according to any one of claims 1 to 7, characterized in that: A part of the operating member (2) is elastic or a part of the pressing member (3) is elastic, so that the pressing member (3) tends to press the external wire (100) against the metal member (4) in a locked state.

9. The connecting terminal according to any one of claims 1 to 7, characterized in that: When the operating member (2) is in the first position and no external wire (100) is inserted between the pressing member (3) and the metal member (4), the operating member (2) extends forward out of the front shielding wall (11) and extends upward out of the two side walls (12).

10. An electric energy meter, characterized in that: The invention is applied with the connection terminal as claimed in any one of claims 1 to 9.

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