Wiring auxiliary structure of electric energy meter

Abstract

The utility model discloses an auxiliary wiring structure for an electric energy meter, which belongs to the technical field of wire connectors and comprises a clamping plate in a concave structure. The top surface of the clamping plate is provided with three groups of indication structures, the side surface of the clamping plate is provided with three groups of jacks, and the three groups of jacks are respectively located below the three groups of indication structures; and the clamping plate is provided with three groups of inner cavities positioned below the indicating structure. According to the utility model, the U-shaped clamping plate is clamped on the three-phase electric energy meter, the detached incoming and outgoing lines are respectively inserted into the jacks, and the three phase lines of each group of incoming and outgoing lines respectively correspond to the three groups of jacks under the three indication structures, so that the indication structures can provide an indication effect for the phase lines, and an operator can conveniently distinguish the phase lines; moreover, the phase lines are inserted into the jacks, so that the end parts of the phase lines can be prevented from being exposed outside before reinstallation, and the whole operation process is safer.

Description

Technical Field

[0001] This utility model relates to the field of wiring technology, specifically to an auxiliary structure for wiring an electricity meter. Background Technology

[0002] Three-phase energy meters are typically connected to current transformers, which are used to measure current in a circuit. They convert large currents into smaller ones, enabling safer and more accurate measurements. The primary conductor is the actual phase conductor, and the current transformer runs through it. The secondary conductor typically connects the energy meter and the current transformer. Three-phase three-wire and three-phase four-wire ammeters have three phase conductors (L1, L2, L3) for both input and output, which are connected to the terminals of the current transformer.

[0003] However, some electricity meters still have phase wires of the same color and lack wire markings. Therefore, when operators disassemble or reassemble the incoming and outgoing lines, it is very easy to make mistakes in wiring. Furthermore, the removed wires are often exposed before reinstallation. Disassembling and reassembling the incoming and outgoing lines of these electricity meters is quite unsafe.

[0004] Therefore, we propose an auxiliary wiring structure for electricity meters to solve the problems mentioned above.

[0005] The information disclosed above in this background section is only intended to enhance the understanding of the background section of this utility model, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide an auxiliary structure for wiring electricity meters, so as to solve the problem mentioned in the background art that the current disassembly and assembly of phase wires of electricity meters with the same color of incoming and outgoing wires is relatively unsafe.

[0007] To achieve the above objectives, this utility model provides an auxiliary wiring structure for an electricity meter, including a clamp plate, which has a U-shaped structure; the top surface of the clamp plate is provided with three sets of indicator structures, and the side surface of the clamp plate is provided with three sets of sockets, which are respectively located below the three sets of indicator structures.

[0008] The clamp has three sets of inner cavities located below the indicator structure, which are respectively connected to three sets of insertion holes. Guide posts are fixedly installed in the inner cavities and correspond to the positions of the insertion holes. Short-circuit structures are fixedly installed on the guide posts.

[0009] Preferably, the clamping plate includes a plate body, and protrusions are fixedly installed at the two corners of the bottom end of the plate body.

[0010] Preferably, the inner side of the plate is provided with an elastic pad.

[0011] Preferably, the shorting structure includes a terminal block, which is fixedly mounted on a guide post, and the terminal block has a first circular hole;

[0012] At least three elastic plates are fixedly installed on the terminal block and are arranged in a circumferential array on the terminal block. Each elastic plate has an arc-shaped locking block fixedly installed on the end facing the socket. The side of the arc-shaped locking block facing the terminal block has a first inclined surface.

[0013] Preferably, each set of sockets has at least three.

[0014] Preferably, the protrusion has a groove, and a clamp is provided in the groove;

[0015] The clamp includes a long clamping bar, and a second circular hole is opened on the side of the long clamping bar facing the elastic pad. A movable column is movably installed in the second circular hole. The other end of the movable column passes through the groove and is fixed to the protrusion. A spring is movably sleeved on the movable column. The two ends of the spring are fixed to the protrusion and the long clamping bar, respectively.

[0016] The side of the long clip away from the elastic pad has a second slope.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) This utility model attaches a U-shaped clamp to a three-phase energy meter, and the removed inlet and outlet wires are inserted into the sockets respectively. The three phase wires of each set of inlet and outlet wires correspond to the three sets of sockets under the three indicator structures, so that the indicator structures can provide an indication function for these phase wires, so that the operators can distinguish them. In addition, the phase wires are inserted into the sockets, which can prevent the ends of these phase wires from being exposed to the outside before reinstallation, thus making the whole operation process safer.

[0019] (2) By installing guide posts and short-circuit structures inside the clamping plate, this utility model enables each set of incoming and outgoing lines to be short-circuited through the guide posts and short-circuit structures, preventing the secondary side of the current transformer from being open-circuited and further improving safety.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 for Figure 1A cross-sectional schematic diagram;

[0023] Figure 3 This is a schematic diagram of the guide post and shorting structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the fixture of this utility model;

[0025] Figure 5 for Figure 1 Enlarged view of the structure at point A in the middle;

[0026] Figure 6 for Figure 3 Enlarged view of the structure at point B.

[0027] In the diagram: 1. Clamping plate; 2. Indicating structure; 3. Insertion hole; 4. Inner cavity; 5. Guide post; 6. Shortening structure; 7. Clamp; 8. Elastic pad;

[0028] 11. Plate body; 12. Protrusion; 13. Groove;

[0029] 61. Terminal block; 62. First circular hole; 63. Elastic sheet; 64. Arc-shaped locking block; 65. First inclined surface;

[0030] 71. Long clamping bar; 72. Second round hole; 73. Movable column; 74. Spring; 75. Second inclined plane. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that the drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only illustrative and not limiting.

[0032] Example 1:

[0033] Please see Figure 1 and Figure 2 An auxiliary wiring structure for an electricity meter includes: a clamping plate 1, which has a U-shaped structure; the top surface of the clamping plate 1 is provided with three sets of indicating structures 2, and the side surface of the clamping plate 1 is provided with three sets of sockets 3, which are located below the three sets of indicating structures 2; the clamping plate 1 has three sets of inner cavities 4 located below the indicating structures 2, which are respectively connected to the three sets of sockets 3, and guide posts 5 are fixedly installed in the inner cavities 4, which correspond to the positions of the sockets 3. Short-circuit structures 6 are fixedly installed on the guide posts 5, and each set of sockets 3 has three.

[0034] By adopting the above technical solution, when using the device, the clamp 1 is attached to the three-phase energy meter with the socket 3 facing down. When disassembling the phase wires on the energy meter, the three sets of phase wires (L1, L2, L3) of the three-phase energy meter are respectively inserted into the three different sets of sockets 3 below the three sets of indicating structures 2. The incoming and outgoing wires of each set of phase wires are in different holes in the same set of sockets 3, and short-circuiting is achieved through the guide post 5 and the short-circuiting structure 6.

[0035] The advantages of the above technical solution are: the three sets of indicator structures 2 can be set to different colors and have labels, and the three sets of phase wires correspond to the three sets of indicator structures respectively, so as to facilitate the differentiation of different phase wires. At the same time, they are plugged into the socket 3 to avoid the ends of the phase wires being exposed to the outside, thus improving safety.

[0036] The clamping plate 1 includes a plate body 11. Protrusions 12 are fixedly installed at the two corners of the bottom end of the plate body 11. When using the plate body 11, when clamping the plate body 11 onto the three-phase energy meter, first slightly pull open the two sides of the lower end of the plate body 11 so that the distance between the two protrusions 12 is greater than the width of the energy meter. After installation on the energy meter, the clamping of the two sides of the lower end of the plate body 11 provides stability, and the protrusions 12 provide a limiting function.

[0037] The inner side of the plate 11 is provided with an elastic pad 8.

[0038] Please see Figure 3 and Figure 6 The short-circuit structure 6 includes a terminal 61, which is fixedly mounted on the guide post 5. The terminal 61 has a first circular hole 62. At least three elastic pieces 63 are fixedly mounted on the terminal 61 and are distributed in a circumferential array on the terminal 61. Each elastic piece 63 has an arc-shaped locking block 64 fixedly mounted on one end facing the socket 3. The side of the arc-shaped locking block 64 facing the terminal 61 has a first inclined surface 65.

[0039] Current transformers convert large currents into smaller, more manageable currents for ammeter measurement. Their operation is based on electromagnetic induction: the primary current generates a magnetic field, which induces a current on the secondary side. Normally, the secondary side is connected to a low-impedance load, balancing the magnetic flux on both sides. However, if the secondary side is open-circuited, the magnetic flux cannot balance the primary flux, leading to a significant increase in the primary flux. This increase induces a very high voltage on the secondary side. Specifically, an open-circuit secondary side causes a significant increase in the magnetic flux of the transformer core, inducing a high voltage. This can damage the transformer, pose an electric shock hazard to operators, and potentially break down the transformer's insulation, leading to equipment failure or fire. Therefore, to ensure safe operation of equipment and operator safety, it is crucial to prevent open-circuiting of the current transformer's secondary side.

[0040] Therefore, by using guide post 5 and short-circuit structure 6 to achieve short-circuiting of incoming and outgoing lines, the situation of open circuit on the secondary side is avoided, further improving safety.

[0041] Another advantage is that the elastic sheet 63 can provide a clamping effect on the incoming and outgoing wires, making the incoming and outgoing wires more stable after being inserted into the socket 3. When inserting, the ends of the incoming and outgoing wires press against the first inclined surface 65, causing the elastic sheet 63 to open until the incoming and outgoing wires enter the first round hole 62 and contact the terminal 61.

[0042] Example 2:

[0043] Please see Figure 1 , Figure 4 as well as Figure 5 Based on embodiment 1, the protrusion 12 has a groove 13, and a clamp 7 is provided in the groove 13. The clamp 7 includes a long clamping strip 71, and a second circular hole 72 is provided on the side of the long clamping strip 71 facing the elastic soft pad 8. A movable column 73 is movably installed in the second circular hole 72. The other end of the movable column 73 passes into the groove 13 and is fixed to the protrusion 12. A spring 74 is movably sleeved on the movable column 73. The two ends of the spring 74 are fixed to the protrusion 12 and the long clamping strip 71 respectively. The side of the long clamping strip 71 away from the elastic soft pad 8 has a second inclined surface 75.

[0044] By adopting the above technical solution, when installing the plate 11, the second inclined surface 75 of the long clamping strip 71 is aligned with the two sides of the electricity meter, the clamping plate 1 is located on the front side of the electricity meter, and the operator presses the clamping plate 1 to make the long clamping strip 71 retract into the groove 13, so that the clamping plate 1 can be clipped onto the electricity meter, thus facilitating the operator's installation.

[0045] Working principle: When the clamp 1 is attached to the three-phase energy meter, the three sets of phase wires are inserted into the three different sockets 3 below the indicator structure 2. The inlet and outlet wires are connected through the shorting structure 6 and the guide post 5. When reinstalling, each set of phase wires is taken out in turn and reinstalled.

[0046] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0047] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric energy meter wiring aid structure, characterized by, The utility model provides a kind of clamp, including the clamp (1), the clamp (1) is "concave” shape structure;Three groups of indicating structures (2) are provided on the top surface of the clamp (1), and three groups of insertion holes (3) are opened in the side surface of the clamp (1), and the three groups of insertion holes (3) are located below three groups of indicating structures (2) respectively; Three groups of inner cavities (4) are opened in the clamp (1) below indicating structure (2), and are communicated with three groups of insertion holes (3) respectively, and guide column (5) is fixedly installed in inner cavity (4), and it is corresponding with the position of insertion hole (3), short circuit structure (6) is fixedly installed on guide column (5).

2. The auxiliary structure for wiring of an electric energy meter according to claim 1, characterized in that: The clamp (1) includes plate body (11), and the two corners of the bottom end of the plate body (11) are fixedly installed with protruding block (12).

3. The auxiliary structure for wiring of an electric energy meter according to claim 2, characterized in that: The inner side of the plate body (11) is provided with elastic cushion (8).

4. The auxiliary structure for wiring of an electric energy meter according to claim 1, characterized in that: The short circuit structure (6) includes terminal post (61), and the terminal post (61) is fixedly installed on guide column (5), and the terminal post (61) is opened with first circular hole (62); At least three elastic sheets (63) are fixedly installed on the terminal post (61), and are circumferentially arrayed on the terminal post (61), and the end of each elastic sheet (63) towards insertion hole (3) is fixedly installed with arc-shaped clamping block (64), and the side of the arc-shaped clamping block (64) towards terminal post (61) is provided with first inclined surface (65).

5. The auxiliary structure for wiring of an electric energy meter according to claim 1, characterized in that: Each group of insertion holes (3) has at least three.

6. The auxiliary structure for wiring of an electric energy meter according to claim 3, characterized in that: The protruding block (12) is opened with groove (13), and the groove (13) is provided with clamp (7); The clamp (7) includes long clamping strip (71), and the side of the long clamping strip (71) towards elastic cushion (8) is opened with second circular hole (72), and movable column (73) is movably installed in the second circular hole (72), the other end of the movable column (73) penetrates into groove (13), and is fixed with protruding block (12), spring (74) is movably sleeved on the movable column (73), and the two ends of the spring (74) are fixed with protruding block (12) and long clamping strip (71) respectively; The side of the long clamping strip (71) away from elastic cushion (8) has second inclined surface (75).

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