Wiring terminal and electric energy meter

Abstract

The utility model provides a wiring terminal and an electric energy meter, which are used for installing an electric wire, and comprise a wiring block which is provided with a channel which penetrates through the wiring block and is used for installing the electric wire; the channel is provided with an opening penetrating through the side surface of the wiring block, the elastic sheet is arranged at the opening, and the end part of the elastic sheet extends into the channel; and the fixing assembly comprises a fixing cylinder which is arranged at one end of the wiring block and corresponds to the port of the channel and a fixing piece which is arranged on the fixing cylinder, and the fixing piece is used for fixing the electric wire in the fixing cylinder. The end part of the electric wire extrudes the elastic sheet in the channel, so that the end part of the elastic sheet is pressed and deformed and generates counter-acting force on the electric wire, and the electric wire can be quickly fixed in the channel; and under the action of the fixing assembly, the stability after wiring is ensured, the electric wire is subjected to wiring fixation in a manner of pressing and clamping through the elastic sheet, compared with bolt fixation, no additional tool is needed, the worry that the service cycle is shortened due to the fact that the bolt slips is avoided, and the electric wire is also prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meter connection, in particular to a connection terminal and an electric energy meter. Background Art

[0002] An electric energy meter, commonly known as an electric energy meter or watt-hour meter, is an instrument used to measure electric energy. It can be divided into single-phase electric energy meters and three-phase electric energy meters, which are used in single-phase and three-phase AC circuits respectively. It is mainly used to measure the current and voltage to calculate the energy consumption.

[0003] At present, when wiring the electric energy meter, the wires are generally directly inserted into the terminals of the electric energy meter, and the bolts are screwed into the terminals through tools and bolts to squeeze and fix the wires. Although the stability of the wire fixation can be guaranteed, the strong force of the bolts can easily cause the wires to tear and accelerate damage. In addition, after the bolts are screwed in and out many times, the bolts or terminals are prone to thread slip, resulting in a short life cycle. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a wiring terminal and an electric energy meter, which solve the problems in the prior art that fixing wires with bolts is prone to tearing of the wires and accelerating damage, and is prone to screw thread slippage of the bolts or terminals, resulting in a short life cycle.

[0005] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0006] Terminal blocks for mounting electrical wires, including:

[0007] A junction block, which has channels running through it for mounting electrical wires;

[0008] at least one elastic sheet, the channel has an opening extending through a side of the wiring block, the elastic sheet is disposed in the opening, and an end of the elastic sheet extends into the channel; and

[0009] The fixing assembly comprises a fixing cylinder arranged at one end of the wiring block and corresponding to the port of the channel and a fixing piece arranged at the fixing cylinder, wherein the fixing piece is used for fixing the wire inside the fixing cylinder.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] When wiring the wires, directly insert them into the channel of the wiring block, and continuously apply pressure to the wires so that the ends of the wires squeeze the elastic sheet in the channel, so that the ends of the elastic sheet are deformed under pressure and generate a reaction force on the wires, so that the wires can be quickly fixed in the channel and the wiring can be completed quickly; secondly, in order to further ensure the stability of the wire fixation, after the wiring of the wires is completed, under the action of the fixing assembly, the wires are fixed again inside the fixing cylinder through the cooperation of the fixing cylinder and the fixing piece, so that the wires will not be separated from the wiring block when pulled, thereby ensuring the stability after wiring. The wires are fixed by pressing and clamping the elastic sheet. Compared with traditional bolt fixing, no additional tools are required, and there is no need to worry about reducing the service life due to bolt slippage, nor will it cause damage to the wires, thereby ensuring that the wires will not be torn or disconnected after wiring.

[0012] Preferably, there are two elastic sheets, and the ends of the two elastic sheets abut against each other and form an angle.

[0013] Preferably, the fixing member includes an extrusion sleeve slidably arranged on the fixing tube and a plurality of elastic strips fixedly arranged on the fixing tube, and the plurality of elastic strips are all provided with an extrusion portion, which abuts against the inner side of the extrusion sleeve so that when the extrusion sleeve moves along the axial direction of the fixing tube, the ends of the plurality of elastic strips are brought closer to or farther away from each other.

[0014] Preferably, the fixing sleeve is provided with a compression spring, and the compression spring abuts between the wiring block and the compression sleeve.

[0015] Preferably, an anti-slip knob is fixedly provided on the circumference of the extrusion sleeve.

[0016] Preferably, each elastic strip has an anti-slip point at its end.

[0017] Preferably, a limiting portion for limiting the position of the extrusion sleeve is fixedly provided at the end of the fixing cylinder.

[0018] According to the embodiment of the utility model, the utility model also adopts the following technical solution:

[0019] The electric energy meter comprises a box body and the above-mentioned connecting terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the planar structure of the box body and the wiring terminals in the embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the wiring terminal in the embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the wiring terminal in the embodiment of the utility model.

[0023] In the above drawings: 1, wiring block; 2, box body; 3, elastic sheet; 4, extrusion spring; 5, anti-slip knob; 6, fixing cylinder; 7, extrusion sleeve; 8, limiting part; 9, elastic strip; 10, channel; 11, extrusion part. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 2 and Figure 3 As shown, the embodiment of the utility model provides a terminal block for installing electric wires, comprising:

[0026] A junction block 1 having a channel 10 passing through the junction block for installing electric wires;

[0027] at least one elastic sheet 3, the channel 10 has an opening penetrating through the side of the junction block 1, the elastic sheet 3 is arranged in the opening, and the end portion extends into the channel 10; and

[0028] The fixing assembly includes a fixing cylinder 6 which is arranged at one end of the wiring block 1 and corresponds to the port of the channel 10 , and a fixing member which is arranged at the fixing cylinder 6 , and the fixing member is used to fix the wire inside the fixing cylinder 6 .

[0029] In the embodiment of the utility model, when wiring the wires, the insulating layer of the wires is peeled off so that the ends of the wires used for wiring are respectively connected to the power end (circuit without insulation layer) and the insulation end (with insulation layer), and the wires are directly inserted into the channel 10 of the wiring block 1, and pressure is continuously applied to the wires so that the power end of the wires squeezes the elastic sheet 3 in the channel 10, so that the end of the elastic sheet 3 is deformed under pressure and generates a reaction force on the wires, so that the power end of the wires can be quickly fixed in the channel 10, and the wiring can be quickly completed.

[0030] Secondly, a fixing tube 6 is provided at the port of the channel 10. When the wire is passed through the channel 10, it is also passed through the fixing tube 6. In order to further ensure the stability of the fixation of the wire, after the wiring of the wire is completed, the insulating end of the wire can be fixed again inside the fixing tube 6 through the cooperation of the fixing tube 6 and the fixing piece, so that the wire will not be separated from the wiring block 1 when pulled, thereby ensuring the stability between the power connection end of the wire and the elastic sheet 3, and the wire is fixed by pressing and clamping the elastic sheet 3. Compared with traditional bolt fixing, no additional tools are required, there is no need to worry about reducing the service life due to bolt slippage, and there is no damage to the wire, ensuring that the wire will not be torn and disconnected after wiring.

[0031] Based on the above scheme, if Figure 3As shown, there are two elastic sheets 3, and the ends of the two elastic sheets 3 abut against each other and form an angle. Taking two elastic sheets 3 as an example, the two elastic sheets 3 are correspondingly arranged on the inner side of the channel 10, and the ends of the two elastic sheets 3 have a force to move toward the inside of the channel 10 in an initial state. When the power connection end of the wire enters the channel 10, the two elastic sheets 3 can be squeezed synchronously, and different clamping forces for releasing the wire are applied by the two elastic sheets 3, thereby ensuring the clamping stability of the power connection end of the wire.

[0032] Based on the above scheme, if Figure 2 and Figure 3 As shown, the fixing member includes an extrusion sleeve 7 slidably arranged on the fixed cylinder 6 and a plurality of elastic strips 9 fixedly arranged on the fixed cylinder 6. The plurality of elastic strips 9 are all provided with an extrusion portion 11, and the extrusion portion 11 abuts against the inner side of the extrusion sleeve 7, so that when the extrusion sleeve 7 moves along the axial direction of the fixed cylinder 6, the ends of the plurality of elastic strips 9 are brought closer to or farther away from each other. When the insulating end of the wire is fixed by the cooperation of the fixing member and the fixed cylinder 6, the extrusion sleeve 7 is located on the side of the fixed cylinder 6 close to the wiring block 1 in the initial state, and does not contact the plurality of elastic strips 9. When the wire is located in the fixed cylinder 6, the fixed cylinder 6 is slid so that the fixed cylinder 6 gradually squeezes the extrusion portions 11 of the plurality of elastic strips 9, so that the extrusion portions 11 drive the ends of the elastic strips 9 set thereon to move toward the inside of the fixed cylinder 6, so that the ends of each elastic strip 9 abut against the wire to achieve fixation.

[0033] Specifically, the fixed cylinder 6 is provided with a compression spring 4, which abuts between the wiring block 1 and the compression sleeve 7. Under the action of the compression spring 4, the initial position of the compression sleeve 7 can be changed. When the insulating end of the wire is fixed, the compression sleeve 7 is separated from the compression part 11 of each elastic strip 9 by sliding the compression sleeve 7, and the compression spring 4 is in a compression state. When the wire is connected, the compression sleeve 7 is directly released, so that the compression sleeve 7 is pushed to the position of each elastic strip 9 under the action of the compression spring 4, so that the compression part 11 is pressed and drives each elastic strip 9 to abut against the wire, simplifying the wiring steps and facilitating operation. In addition, the circumferential side of the compression sleeve 7 is fixedly provided with an anti-slip knob 5, which can facilitate manual adjustment of the compression sleeve 7, and is more labor-saving. The ends of each elastic strip 9 are provided with anti-slip points, which can increase the friction between the ends of the elastic strip 9 and the wire, and improve a certain fixing stability; furthermore, the end of the fixed cylinder 6 is fixedly provided with a limiting part 8 for limiting the compression sleeve 7, which can limit the movement stroke of the compression sleeve 7 and prevent the compression sleeve 7 from separating from the fixed cylinder 6.

[0034] like Figure 1As shown, the embodiment of the utility model also proposes an electric energy meter, including a box body 2, and also includes the above-mentioned wiring terminals, which are installed on the box body 2 and electrically connected. The specific structure of the wiring terminals refers to the above-mentioned embodiment. Since the electric energy meter adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0035] In summary, the electric energy meter using the present solution does not require complicated wiring steps. When wiring, the cable is directly stripped and inserted into the channel 10 of the wiring block 1. The reaction force of the two elastic sheets 3 is used to fix the wires passing through. No additional tools are required. There is no need to worry about reducing the service life due to bolt slippage, nor will the wires be damaged. It is ensured that the wires will not be torn or broken after wiring. In addition, with the support of the fixing component, the sliding adjustment of the extrusion sleeve 7 can be used to abut against the wires through a number of elastic strips 9. Even when pulled, it will not come off, ensuring the stability of the wires after wiring.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A terminal block for installing wires, characterized in that: include: A junction block (1) having a channel (10) extending through the junction block for installing electrical wires; at least one elastic sheet (3), the channel (10) having an opening penetrating through a side surface of the wiring block (1), the elastic sheet (3) being arranged at the opening, and an end portion thereof extending into the interior of the channel (10); as well as A fixing assembly comprises a fixing cylinder (6) arranged at one end of the wiring block (1) and corresponding to the port of the channel (10), and a fixing member arranged on the fixing cylinder (6), wherein the fixing member is used to fix the electric wire inside the fixing cylinder (6).

2. The connection terminal according to claim 1, characterized in that: There are two elastic sheets (3), and the ends of the two elastic sheets (3) abut against each other and form an angle.

3. The connection terminal according to claim 1, characterized in that: The fixing member comprises an extrusion sleeve (7) slidably arranged on the fixing tube (6) and a plurality of elastic strips (9) fixedly arranged on the fixing tube (6), wherein the plurality of elastic strips (9) are each provided with an extrusion portion (11), and the extrusion portion (11) abuts against the inner side of the extrusion sleeve (7), so that when the extrusion sleeve (7) moves along the axial direction of the fixing tube (6), the ends of the plurality of elastic strips (9) are moved closer to or farther from each other.

4. The connection terminal according to claim 3, characterized in that: The fixing cylinder (6) is sleeved with a compression spring (4), and the compression spring (4) abuts between the wiring block (1) and the compression sleeve (7).

5. The connection terminal according to claim 4, characterized in that: An anti-slip knob (5) is fixedly provided on the circumferential side of the extrusion sleeve (7).

6. The connecting terminal according to any one of claims 3 to 5, characterized in that: The end of each elastic strip (9) is provided with an anti-slip point.

7. The connection terminal according to any one of claims 3 to 5, characterized in that: A limiting portion (8) for limiting the position of the extrusion sleeve (7) is fixedly provided at the end of the fixing tube (6).

8. An electric energy meter, comprising a box body (2), characterized in that: It also includes a connecting terminal according to any one of claims 1-7.

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