wire clip

Abstract

The embodiment of the application provides a kind of wire clamp, it is related to electrical equipment technical field.The wire clamp includes: wire clamp main body, limit part and locking part are equipped on wire clamp main body;First conductor, it is movably arranged on wire clamp main body, first conductor is used to electrically connect the cable of primary side and press the cable on limit part;Second conductor, it is arranged on wire clamp main body, second conductor is electrically connected with first conductor, and second conductor is used to electrically connect the lead wire of secondary side;Pressing member is used to press the lead wire second conductor, and pressing member has locking cooperation part, locking cooperation part is configured as, when pressing member press the lead wire, locking cooperation part is connected with locking part, to lock pressing member on wire clamp main body;Locking assembly is configured as, first conductor is locked on wire clamp main body, or, when locking cooperation part connects locking part, the locking of first conductor is released.The wire clamp is favorable to improve the problem that the risk of misoperation of wire clamp is higher.

Description

Technical Field

[0001] This application relates to electrical equipment technology, and more particularly to a wire clamp. Background Technology

[0002] An electricity meter is a device used to measure electrical energy. It is connected to the power supply line cable via lead wires and clamps. When using clamps, the clamps need to be fixed to the cable of the primary power supply line, the cable insulation is stripped to expose the internal conductor, and the clamps are electrically connected to the cable on the primary side and the lead wires on the secondary side, thus realizing the electrical connection between the primary power supply line and the secondary lead wires.

[0003] To ensure safety, when connecting the primary side cable, the clamp must remain connected to the secondary side lead, and the side of the clamp connected to the secondary side must not be open-circuited.

[0004] However, when installing the clamps, workers may accidentally miss connecting the secondary side leads, which could lead to danger. The risk of misuse of the clamps is relatively high. Summary of the Invention

[0005] This application provides a wire clamp to improve the problem of high risk of misuse when using wire clamps.

[0006] This application provides a wire clamp, including:

[0007] A wire clamp body, wherein the wire clamp body is provided with a limiting part and a locking part;

[0008] A first conductor is movably disposed on the clamp body. The first conductor is used to electrically connect the cable on the primary side and press the cable onto the limiting part.

[0009] The second conductor is disposed on the clamp body and is electrically connected to the first conductor. The second conductor is used to electrically connect the leads on the secondary side.

[0010] A crimping member is movably disposed on the wire clamp body. The crimping member is used to crimp the lead wire to the second conductor. The crimping member has a locking engagement portion, which is configured such that when the crimping member crimps the lead wire, the locking engagement portion connects with the locking portion to lock the crimping member onto the wire clamp body.

[0011] A locking assembly is provided, which connects the clamp body and the first conductor. The locking assembly is configured to lock the first conductor onto the clamp body, or to release the locking of the first conductor when the locking engagement portion is connected to the locking portion.

[0012] In one possible implementation, an intermediate conductor is also included, which connects the first conductor and the second conductor.

[0013] In one possible implementation, the intermediate conductor is an elastic metal strip or a flexible metal strip.

[0014] In one possible implementation, the clamp body has a receiving groove for accommodating the cable, the first conductor is slidably disposed in the receiving groove in a direction toward the limiting portion, and the limiting portion is detachably connected to the clamp body and blocks the receiving groove.

[0015] In one possible implementation, the limiting part includes a bolted connection pair and a support member detachably connected to the bolted connection pair, the crimping member crimping the cable onto the support member.

[0016] In one possible implementation, the locking component includes:

[0017] A screw, which is threadedly connected to the clamp body, has its end rotatably connected to the first conductor, and has a limiting groove on it;

[0018] A locking member is hinged to the wire clamp body and is configured to be inserted into the limiting groove to lock the screw, or to be pushed away from the limiting groove by the crimping member when the crimping member crimps the lead wire.

[0019] A reset member is connected to the locking member and the wire clamp body. The reset member is configured to drive the locking member to insert into the limiting groove when the crimping member releases the crimping of the lead wire.

[0020] In one possible implementation, the reset member is a first elastic member configured to deform and store energy when the locking member disengages from the limiting groove, or to recover deformation when the crimping member releases its crimp on the lead wire, so as to drive the locking member to insert into the limiting groove.

[0021] In one possible implementation, the clamp further includes a limiting component connected to the first conductor, the limiting component being configured to limit the locking engagement portion to maintain the connection between the locking engagement portion and the locking portion, or to release the limiting of the locking engagement portion when the distance between the first conductor and the limiting portion is greater than a preset value.

[0022] In one possible implementation, the limiting component includes:

[0023] A limiting member, wherein the limiting member is connected to the first conductor;

[0024] A blocking member is movably disposed on the locking assembly or the clamp body, and the blocking member is used to limit the locking engagement part;

[0025] A second elastic element connects the limiting element and the blocking element;

[0026] The blocking member is configured to be pushed against the locking engagement portion by the second elastic member to limit the locking engagement portion, or to be driven by the second elastic member to disengage from and unlock the locking engagement portion when the distance between the first conductor and the limiting portion is greater than the preset value.

[0027] In one possible implementation, the crimping member is hinged to the clamp body, and the locking part engages with the locking mating part.

[0028] The wire clamp provided in this application embodiment has a first conductor and a second conductor respectively provided on the wire clamp body for connecting the primary side cable and the secondary side lead wire. The first conductor and the second conductor are electrically connected. The locking component can lock the first conductor on the wire clamp body. The crimping component is movably connected to the wire clamp body and can crimp the second side lead wire onto the second conductor. The locking engagement part on the crimping component can be connected to the locking part on the wire clamp body to realize the locking of the crimping component crimping the lead wire. At the same time, it allows the locking component to unlock the first conductor, so that the first conductor can move to press the primary side cable onto the limiting part. In this way, a linkage constraint relationship can be formed between the connection of the first conductor and the cable on the primary side and the connection of the second conductor and the lead wire on the secondary side. Only when the crimping member crimps the lead wire onto the secondary conductor can the locking component release the first conductor to connect the first conductor to the cable. If the crimping member does not crimp the lead wire properly, the first conductor cannot move. Therefore, the risk of missing lead wire connection on the secondary side during the installation of the clamp can be reduced, which helps to improve the problem of high risk of misoperation when using the clamp. At the same time, the connection between the locking part and the locking mating part can maintain the crimping of the lead wire by the crimping member, so that there is a good connection stability between the second conductor and the lead wire.

[0029] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0031] Figure 1 This is a schematic diagram of the wire clamp provided in this application;

[0032] Figure 2 for Figure 1 Diagram of center clamp connecting cable and lead wire Figure 1 ;

[0033] Figure 3 for Figure 2 Schematic diagram of the internal structure of the centerline clamp;

[0034] Figure 4 for Figure 3 A schematic diagram showing the connection relationship between the first conductor, the second conductor, and the intermediate conductor.

[0035] Figure 5 for Figure 1 Diagram of center clamp connecting cable and lead wire Figure 2 ;

[0036] Figure 6 for Figure 5 Schematic diagram of the internal structure of the centerline clamp;

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Wire clamp body; 110. Limiting part; 111. Bolt connection pair; 112. Supporting part; 120. Locking part; 101. Receiving groove;

[0039] 200. First conductor;

[0040] 300. Second conductor;

[0041] 400. Press-fit part; 410. Locking mating part;

[0042] 500. Locking assembly; 510. Screw; 520. Locking element; 530. Reset element;

[0043] 600, intermediate conductor;

[0044] 700, Limiting component; 710, Limiting element; 720, Blocking element; 730, Second elastic element;

[0045] 800, Cable;

[0046] 900, lead wire.

[0047] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] The terms "first," "second," "third," "fourth," etc., used in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0052] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or components is not necessarily limited to those steps or components that are explicitly listed, but may include other steps or components that are not explicitly listed or that are inherent to those processes, methods, products, or apparatuses.

[0053] An electricity meter is a device used to measure electrical energy. It is connected to the power supply line cable via lead wires and clamps. When using clamps, the clamps need to be fixed to the cable of the primary power supply line, the cable insulation is stripped to expose the internal conductor, and the clamps are electrically connected to the cable on the primary side and the lead wires on the secondary side, thus realizing the electrical connection between the primary power supply line and the secondary lead wires.

[0054] To ensure safety, when connecting the primary side cable, the clamp must remain connected to the secondary side lead. The side of the clamp connected to the secondary side must not be open-circuited to prevent dangerous high voltage from injuring nearby personnel and damaging equipment.

[0055] However, when installing the clamps, workers may neglect to connect the secondary side leads due to negligence. If the clamps are then connected to the primary side cables, it may cause danger, and the risk of misuse of the clamps is relatively high.

[0056] Based on this, this application proposes a wire clamp, which has a first conductor and a second conductor respectively for connecting a primary side cable and a secondary side lead on the wire clamp body. The first conductor and the second conductor are electrically connected. A locking component can lock the first conductor on the wire clamp body. A crimping member is movably connected to the wire clamp body and can crimp the second side lead onto the second conductor. The locking engagement part on the crimping member can be connected to the locking part on the wire clamp body to lock the crimping member onto the lead. At the same time, the locking component unlocks the first conductor, allowing the first conductor to move and press the primary side cable against the limiting part.

[0057] This design creates a linkage between the connection of the primary side's first conductor and the cable, and the connection of the secondary side's second conductor and the lead wire. Only when the crimping component presses the lead wire onto the secondary conductor can the locking assembly release the first conductor to connect it to the cable. If the crimping component fails to properly press the lead wire, the first conductor cannot move. Therefore, this reduces the risk of missing leads on the secondary side during clamp installation, mitigating the problem of high operational error risks associated with clamp use. Simultaneously, the connection between the locking part and the locking mating part maintains the crimping component's pressure on the lead wire, ensuring good connection stability between the second conductor and the lead wire.

[0058] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0059] Reference Figure 1 , Figure 2 and Figure 3 The wire clamp of this embodiment includes a wire clamp body 100, a first conductor 200, a second conductor 300, a locking component 500, and a crimping component 400.

[0060] The clamp body 100 is provided with a limiting part 110 and a locking part 120. A first conductor 200 is movably disposed on the clamp body 100. The first conductor 200 is used to electrically connect the primary side cable 800 and crimp the cable 800 onto the limiting part 110. A second conductor 300 is disposed on the clamp body 100 and is electrically connected to the first conductor 200. The second conductor 300 is used to electrically connect the secondary side lead 900. A crimping member 400 is movably disposed on the clamp body 100. The crimping member 400 is used to crimp the lead 900 onto the second conductor 300. The crimping member 400 has a locking engagement part 410, which is configured such that when the crimping member 400 crimps the lead 900, the locking engagement part 410 connects with the locking part 120 to lock the crimping member 400 onto the clamp body 100. The locking assembly 500 connects the clamp body 100 and the first conductor 200. The locking assembly 500 is configured to lock the first conductor 200 onto the clamp body 100, or to release the locking of the first conductor 200 when the locking engagement part 410 is connected to the locking part 120.

[0061] The clamp body 100 is used to install and position the first conductor 200, the second conductor 300, the crimping member 400, and the locking assembly 500, while providing a relatively fixed installation interface for the primary side cable 800 and the secondary side lead wire 900. The clamp body 100 is made of insulating material, such as fiberglass, bakelite, or polycarbonate. Different materials can be selected according to actual conditions to meet different requirements for mechanical strength, insulation protection, and environmental resistance.

[0062] The first conductor 200 is a conductive element disposed on the clamp body 100 and capable of controlled displacement relative to the clamp body 100. It is used to clamp the primary side cable 800 and establish an electrical connection with the primary side cable 800, thereby introducing external primary side line current into the conductive path inside the clamp. The first conductor 200 is located on the side of the clamp body 100 near the primary side cable 800 and forms a clamping engagement with the limiting part 110 to clamp the cable 800.

[0063] In practice, the first conductor 200 needs to make full contact with the conductor inside the cable 800. Specifically, a section of the outer sheath of the cable 800 can be stripped so that the first conductor 200 can make contact with the conductor inside the cable 800 through the unsheathed portion. It is important to note that the electrical connection between the first conductor 200 and the cable 800 needs to be protected to prevent people or objects from coming into contact with it and causing danger. Specifically, insulating tape can be wrapped around the connection between the first conductor 200 and the cable 800, or a protective cover or box can be installed to protect the connection.

[0064] The second conductor 300 is used to transfer the current from the first conductor 200 to the connection position of the secondary lead 900, thereby forming a continuous power supply path between the primary and secondary sides. The second conductor 300 is located below the crimping path of the crimping member 400 so that the lead 900 is reliably pressed against the conductive contact surface of the second conductor 300 when the crimping member 400 is closed, and is energized through its conductive relationship with the first conductor 200.

[0065] For example, the second conductor 300 can connect two or more leads 900, enabling the wire clamp to have a wire splitting function. One end of the second conductor 300 is used to connect to the first conductor 200, and the other end can extend and form a support shape. The concave arc surface is provided to contact the conductor in the lead 900, which can stably support and limit the lead 900. When the crimping member 400 presses the lead 900, the position of the lead 900 is firm and reliable, and the conductive contact area between the second conductor 300 and the lead 900 support is larger, resulting in better conductivity.

[0066] The crimping member 400 is a clamping component that moves relative to the clamp body 100. The crimping member 400 is used to crimp the secondary lead 900 to the second conductor 300 under external force, and after crimping, it locks itself onto the clamp body 100 through the connection of the locking engagement part 410 and the locking part 120. The crimping member 400 is located on the outside of the clamp body 100. Operators can press, push, or pull it towards the second conductor 300, thereby creating force-bearing contact between the lead 900 and the second conductor 300. The crimping member 400 is made of insulating material, such as fiberglass, bakelite, or polycarbonate. Different materials can be selected according to actual needs to meet different requirements for mechanical strength, insulation protection, and environmental resistance.

[0067] The locking assembly 500 is a linkage constraint mechanism connecting the clamp body 100 and the first conductor 200. It is used to keep the first conductor 200 in a locked state before the crimping member 400 completes the crimping and locking of the lead 900, so that the operator is less likely to miss the lead 900 on the secondary side of the clamp. When the crimping member 400 crimps the lead 900 into place and the locking engagement part 410 and the locking part 120 are connected, the locking assembly 500 can release the locking of the first conductor 200, so that the first conductor 200 completes the crimping of the primary side cable 800 under a predetermined guide.

[0068] Based on the above description, the wire clamp provided in this application embodiment has a linkage relationship between the crimping action of the primary side cable 800 and the crimping action of the secondary side lead 900 through the locking component 500 and the crimping member 400. Through this linkage relationship, the locking of the first conductor 200 is only released after the crimping member 400 has crimped the secondary side lead 900 into place and completed the locking on the wire clamp body 100. This structurally restricts the misoperation of missing the secondary side lead 900, reduces the risk of missing the secondary side lead 900 during the installation of the wire clamp, and helps to improve the problem of high risk of misoperation when using the wire clamp.

[0069] Meanwhile, the conductive connection between the first conductor 200 and the second conductor 300, as well as the pressure of the crimping member 400 on the lead 900, ensure that the voltage sampling circuit remains continuously conductive. Under outdoor vibration, temperature and humidity changes, and corrosive environments, the controlled mating surfaces maintain a relatively stable contact state, thereby maintaining the mechanical stability and electrical continuity of the sampling connection.

[0070] Reference Figure 3 and Figure 4 As shown, in some embodiments, the wire clamp further includes an intermediate conductor 600, which connects the first conductor 200 and the second conductor 300.

[0071] By setting an intermediate conductor 600, a conductive transition is established between the first conductor 200 and the second conductor 300, enabling continuous transmission of current and voltage signals between them. The intermediate conductor 600 compensates for the relative displacement between the first conductor 200 and the second conductor 300 during assembly, locking, and crimping, maintaining conductive continuity and thus improving the overall electrical stability and operational reliability of the device.

[0072] In some embodiments, the intermediate conductor 600 is an elastic metal strip or a flexible metal strip.

[0073] By setting the intermediate conductor 600 as an elastic metal strip or a flexible metal strip, the elasticity or flexibility of the intermediate conductor 600 can be used to adapt to the relative movement between the first conductor 200 and the second conductor 300, maintain the electrical connection between the first conductor 200 and the second conductor 300, and improve the conductivity stability of the wire clamp.

[0074] When the intermediate conductor 600 is an elastic or flexible metal strip, the first conductor 200 is initially locked to the clamp body 100 under the action of the locking component 500. The intermediate conductor 600 is in a bent state, maintaining the electrical connection between the first conductor 200 and the second conductor 300. When the crimping member 400 presses the secondary side lead 900 into place, the intermediate conductor 600, relying on its own elasticity or flexibility, has its ends connecting the first conductor 200 and the second conductor 300 pulled apart, producing a corresponding deformation to adapt to the distance difference between the first conductor 200 and the second conductor 300, maintaining the electrical connection between them.

[0075] The intermediate conductor 600 can be made of copper-based alloy strip, copper-nickel alloy strip, or stainless steel composite strip to balance conductivity and fatigue life. Its conductive surface can be plated with a tin, silver, or nickel layer to suppress the adverse effects of oxidation and corrosion on contact performance. The intermediate conductor 600 can be connected to the first conductor 200 and the second conductor 300 by welding or by using screws to press the end of the intermediate conductor 600 onto the first conductor 200 or the second conductor 300.

[0076] For example, since the primary side cable 800 is typically made of aluminum wire and the secondary side lead wire 900 is typically made of copper wire, the potential difference between the standard electrodes of copper and aluminum is relatively large. When in direct contact, in humid air, rain, dust, coastal salt spray, or industrial pollution environments, electrochemical corrosion will occur rapidly. A dense insulating oxide layer will easily form at the connection points and conventional clamp contact areas, increasing contact resistance and potentially causing undervoltage or loss of voltage in the electricity meter. Therefore, the first conductor 200 can be made of tin-plated copper or a copper-aluminum composite material, while the intermediate conductor 600 and the second conductor 300 can be made of copper. The smaller potential difference between aluminum and tin, and between tin and copper, effectively mitigates the occurrence of electrochemical corrosion.

[0077] In some embodiments, the clamp body 100 has a receiving groove 101 for receiving a cable 800. A first conductor 200 is slidably disposed in the receiving groove 101 in the direction toward the limiting part 110. The limiting part 110 is detachably connected to the clamp body 100 and blocks the receiving groove 101.

[0078] A receiving groove 101 may be formed at the end of the clamp body 100 for holding the primary side cable 800. The first conductor 200 can slide linearly relative to the clamp body 100 to move toward the limiting part 110 under the action of external force, thereby gradually pressing and fixing the cable 800 placed in the receiving groove 101 to the limiting part 110 to form a stable electrical connection and mechanical clamping. The groove wall of the receiving groove 101 can guide the first conductor 200, so that the first conductor 200 can only move toward or away from the limiting part 110.

[0079] Regarding the size and proportion of the receiving groove 101, the width of the receiving groove 101 can be slightly larger than the outer diameter of the cable 800 so that the cable 800 can be smoothly inserted. The groove depth is the sum of the diameter of the cable 800, the length of the first conductor 200, and the allowance. The value of the allowance is based on the sliding stroke design of the first conductor 200. The sliding stroke of the first conductor 200 should cover the entire displacement range from the pre-positioning to the final crimping.

[0080] With this arrangement, when the cable 800 is placed into the receiving groove 101, the first conductor 200 slides towards the limiting part 110 under the action of external pressing force, gradually pressing the cable 800 towards the limiting part 110, thereby ensuring that the cable 800 is reliably positioned and clamped within the receiving groove 101. Since the limiting part 110 and the clamp body 100 are detachably connected, the seal can be removed during the assembly stage to allow the cable 800 to be inserted. After the cable 800 is inserted, the limiting part 110 is reinstalled and the opening of the receiving groove 101 is closed. Then, the first conductor 200 presses the cable 800 tightly onto the limiting part 110. The first conductor 200 and the limiting part 110 together clamp the cable 800, thereby reducing the risk of loosening caused by vibration, thermal expansion and contraction, or external disturbance.

[0081] In addition, the sliding pressing of the first conductor 200 in the receiving groove 101 can make the contact pressure more uniform and form a stable fit between the cable 800 and the limiting part 110. The sealing of the receiving groove 101 by the limiting part 110 can also suppress the displacement, lifting or detachment of the cable 800 during long-term operation, thereby improving the mechanical reliability and electrical connection stability of the clamp connection.

[0082] In some embodiments, the limiting part 110 includes a bolt connection pair 111 and a support member 112 detachably connected to the bolt connection pair 111, and the crimping member 400 crimps the cable 800 onto the support member 112.

[0083] The support member 112 is detachably installed on the clamp body 100 via a bolt connection pair 111. One end of the clamp body 100 can be U-shaped to form a receiving groove 101. The bolt connection pair 111 includes a bolt, a nut, and a washer. Both ends of the U-shaped portion of the clamp body 100 have through holes arranged coaxially. After the bolt passes through the two through holes, the washer is fitted, and then the nut is tightened onto the bolt to complete the installation of the bolt on the clamp body 100. Regarding the form of the support member 112, it can be tubular and fitted onto the bolt inside the receiving groove 101 of the clamp body 100 to support the side of the cable 800 away from the first conductor 200.

[0084] Secondly, a bearing surface can be provided on the side of the support member 112 facing the first conductor 200. This bearing surface is used for direct contact with the cable 800, which helps to improve the firmness of the first conductor 200 crimping the cable 800, thereby establishing a stable mechanical clamping and electrical contact relationship. The bearing surface can be an arc-shaped surface adapted to the outer circumference of the cable 800 to increase the contact angle with the cable 800 and reduce local stress concentration. The bearing surface can also be a plane to facilitate crimping of flat conductors or multi-core cables 800. In terms of material, the support member 112 can be made of insulating material to prevent the support member 112 from becoming electrified by contacting the exposed conductor of the cable 800. Specific materials can be fiberglass, bakelite, or polycarbonate, etc. If necessary, the bearing surface can also be provided with anti-slip texture or wear-resistant coating to balance mechanical strength and environmental resistance.

[0085] Furthermore, since the support member 112 is a replaceable structure, multiple support members 112 of different sizes can be made to correspond to cables 800 of different diameters. The different sizes of the support member 112 are mainly reflected in the distance between the support surface and the central axis of the bolt. The design of the crimping stroke of the first conductor 200 needs to be based on the diameter of the inner conductor of the cable 800, so that the first conductor 200 can apply sufficient clamping force to the cable 800 when the crimping action is completed, and will not cause damage to the cable 800 due to excessive crimping, nor will it cause an increase in the contact resistance between the cable 800 and the first conductor 200 due to insufficient crimping.

[0086] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the locking assembly 500 includes a screw 510, a locking member 520, and a resetting member 530. The screw 510 is threadedly connected to the clamp body 100, and its end is rotatably connected to the first conductor 200. The screw 510 has a limiting groove. The locking member 520 is hinged to the clamp body 100 and is configured to insert into the limiting groove to lock the screw 510, or to be pushed out of the limiting groove by the crimping member 400 when the crimping member 400 crimps the lead wire 900. The resetting member 530 connects the locking member 520 and the clamp body 100 and is configured to drive the locking member 520 into the limiting groove when the crimping member 400 releases the crimping of the lead wire 900.

[0087] The screw 510 converts rotational motion into axial linear displacement, driving the first conductor 200 to move and limiting its position. The screw 510 adjusts the position of the first conductor 200 through a threaded engagement with the clamp body 100, and the rotation of the screw 510 is constrained by the engagement of the limiting groove and the locking member 520. A tubular structure can be provided on the clamp body 100, with internal threads inside. The screw 510 engages with the threaded hole, and one end of the screw 510 rotatably engages with the first conductor 200. This allows the first conductor 200 to move along the receiving groove 101 under the rotational drive of the screw 510, pressing the primary cable 800 to the limiting part 110. When the locking member 520 is inserted into the limiting groove, it prevents the screw 510 from rotating, thus maintaining the pressing state of the first conductor 200 against the cable 800.

[0088] The screw 510 is made of insulating material. The end of the screw 510 away from the first conductor 200 is provided with an operating part. The operating part can be easily turned manually or operated with the help of tools. Specifically, the operating part can be a knob or a handle.

[0089] For the rotatable connection between the screw 510 and the first conductor 200, a T-slot can be provided on the first conductor 200, with the T-slot passing through the first conductor 200 along the direction of cable 800. Correspondingly, the end of the screw 510 has a protrusion, and the top of the protrusion has a flange for fitting into the T-slot. When connecting the first conductor 200 to the screw 510, the screw 510 can be screwed into place on the clamp body 100 first, and then the first conductor 200 can be inserted into the receiving groove 101 of the clamp body 100 and inserted into the flange of the screw 510. In this way, the first conductor 200 cooperates with the receiving groove 101, and when the screw 510 rotates, the first conductor 200 will not rotate with the screw 510, but will only move axially with the screw 510, thereby stably crimping the cable 800.

[0090] The locking element 520 is hinged to the clamp body 100 and can swing around the hinge axis. One end of the locking element 520 is used to selectively engage with the locking element in the limiting groove. The main function of the locking element 520 is to keep the screw 510 in a locked state when the crimping member 400 has not completed the crimping of the lead wire 900, to prevent the operator from accidentally turning the screw 510 and causing the first conductor 200 to contact the conductor inside the cable 800. When the crimping member 400 completes the crimping of the lead wire 900 and the crimping member 400 pushes the locking element 520 in a coordinated manner, the locking element 520 disengages, thereby releasing the first conductor 200 from the lock. The locking member 520 is hinged to the clamp body 100. The end of the locking member 520 that is inserted into the limiting groove corresponds to the limiting groove on the screw 510. Under normal conditions, the locking member 520 extends into the limiting groove under the action of the reset member 530 to form an axial block on the screw 510. When the pressing member 400 presses the lead wire 900 and pushes the locking member 520, the locking member 520 rotates around its own hinge axis and disengages from the limiting groove.

[0091] In practical implementation, the locking member 520 can be L-shaped, and the limiting groove can be an annular groove surrounding the screw 510. The limiting groove is arranged radially along the side wall of the screw 510 that contacts the locking member 520 in the axial direction, so that the locking member 520 is not easily loosened due to the axial movement of the screw 510. The limiting groove needs to leave space for the locking member 520 to rotate out of the limiting groove to prevent interference with the movement of the locking member 520.

[0092] By setting the locking member 520, the screw 510 and the reset member 530, the locking state of the first conductor 200 and the locking state of the crimping member 400 can be linked and controlled, so that the primary side crimping and the secondary side crimping form a sequential constraint, thereby reducing the risk of missing the secondary side lead 900.

[0093] In some embodiments, the reset member 530 is a first elastic member, which is configured to deform and store energy when the locking member 520 disengages from the limiting groove, or to recover deformation when the crimping member 400 releases the crimping of the lead 900, so as to drive the locking member 520 to insert into the limiting groove.

[0094] The function of the first elastic element is to provide a continuous rebound force to the locking element 520, so that after the locking element 520 leaves the limiting groove under the action of external force, it can return to the locking position corresponding to the limiting groove. The first elastic element is arranged on the force path of the locking element 520 by pre-installation. When the locking element 520 is pushed and rotated by the crimping member 400, the first elastic element simultaneously generates elastic deformation and stores elastic potential energy. When the crimping member 400 releases the crimping action on the lead wire 900, the external constraint force decreases, the first elastic element releases the stored elastic potential energy, and pushes the locking element 520 to rotate back along the original motion trajectory. At this time, if the screw 510 has been reset and the limiting groove has returned to the initial position, the locking element 520 can automatically insert into the limiting groove and restore the locking state of the screw 510.

[0095] The first elastic element can be configured as a compression spring, which axially compresses when the locking member 520 is deflected under pressure and extends to its original position after unloading. Alternatively, the first elastic element can be configured as a tension spring, which is stretched to store energy during the process of the locking member 520 disengaging from the limiting groove and pulls back the locking member 520 upon recovery. Alternatively, the first elastic element can also be configured as a torsion spring, spring steel sheet, serpentine spring sheet, or coil spring structure to adapt to different hinge forms and installation spaces. In this embodiment, the first elastic element is inserted into the locking member 520. When the locking member 520 rotates out of the limiting groove, the first elastic element abuts against the clamp body 100 and is bent. During the process of the pressing member 400 releasing the pressure on the locking member 520, the elastic potential energy is gradually released to push the locking member 520 back to its original position.

[0096] In terms of materials, the first elastic component can be made of spring steel, stainless steel, phosphor bronze, or other elastic alloy materials with good fatigue life and corrosion resistance to meet the requirements of environmental adaptability.

[0097] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the wire clamp further includes a limiting component 700 connecting the first conductor 200. The limiting component 700 is configured to limit the locking engagement portion 410 to maintain the connection between the locking engagement portion 410 and the locking portion 120, or to release the limiting of the locking engagement portion 410 when the distance between the first conductor 200 and the limiting portion 110 is greater than a preset value.

[0098] The limiting component 700 limits and locks the locking engagement part 410, which prevents the locking engagement part 410 from disengaging from the locking part 120 when the first conductor 200 moves away from the limiting part 110. Consequently, the crimping member 400 cannot release the crimping state of the lead wire 900. When the distance between the first conductor 200 and the limiting part 110 is greater than a preset value, the limiting of the locking engagement part 410 is released. At this time, the locking engagement part 410 can be separated from the locking part 120, and the crimping member 400 can release the crimping of the lead wire 900.

[0099] This configuration ensures that the disconnection of the primary side cable 800 and the first conductor 200 of the clamp, and the disconnection of the secondary side lead 900 and the second conductor 300 of the clamp, are sequential. Only after the first conductor 200 is completely detached from the cable 800 can the locking engagement part 410 and the locking part 120 separate, and the crimping part 400 release the crimping of the lead 900. This achieves the goal of disconnecting the cable 800 first and then disconnecting the lead 900, reducing the safety risk caused by workers accidentally disconnecting the secondary side lead 900 when the primary side first conductor 200 comes into contact with the inner conductor of the cable 800.

[0100] The preset value needs to be designed based on the distance between the limiting part 110 and the first conductor 200, the diameter of the cable 800, and the size of the receiving groove 101 of the clamp body 100. The preset value needs to satisfy that when the cable 800 with the maximum allowable diameter is in the receiving groove 101 of the clamp body 100, the first conductor 200 can be completely detached from the cable 800 after the distance between the first conductor 200 and the limiting part 110 reaches the preset value.

[0101] In some embodiments, the limiting assembly 700 includes a limiting member 710, a blocking member 720, and a second elastic member 730. The limiting member 710 is connected to the first conductor 200. The blocking member 720 is movably disposed on the locking assembly 500 or the clamp body 100, and the blocking member 720 is used to limit the locking engagement portion 410. The second elastic member 730 connects the limiting member 710 and the blocking member 720.

[0102] The blocking member 720 is configured to be pushed and pressed against the locking engagement portion 410 by the second elastic member 730 to limit the locking engagement portion 410, or to be driven by the second elastic member 730 to disengage from and unlock the locking engagement portion 410 when the distance between the first conductor 200 and the limiting portion 110 is greater than a preset value.

[0103] By setting a limiting member 710, a blocking member 720, and a second elastic member 730, when the distance between the first conductor 200 and the limiting part 110 does not reach a preset value, the second elastic member 730 is in an energy-storing state, which can apply an elastic force to the blocking member 720, so that the blocking member 720 maintains the pressure on the locking engagement part 410, preventing the locking engagement part 410 from separating from the locking part 120, thereby ensuring that the crimping member 400 maintains the crimping of the lead wire 900. When the distance between the first conductor 200 and the limiting part 110 is greater than the preset value, the second elastic member 730 releases its energy and no longer applies the force to the blocking member 720 to press the locking engagement part 410. At this time, the blocking member 720 can disengage from the locking engagement part 410, and the crimping member 400 can release the crimping of the lead wire 900.

[0104] For example, the blocking member 720 can be configured as a baffle sleeved on the screw 510, and the second elastic member 730 can be a compression spring sleeved on the screw 510. The limiting member 710 is connected to the first conductor 200 through the screw 510, and can be integrally formed at the end of the screw 510 away from the first conductor 200. The connecting segment of the second elastic member 730 connects the blocking member 720 and the limiting member 710 respectively. To facilitate the rotational operation of the screw 510, the limiting member 710 can be configured as a knob, which is convenient for operators to operate by hand.

[0105] In some embodiments, the crimping member 400 is hinged to the clamp body 100, and the locking part 120 is engaged with the locking engagement part 410.

[0106] When the crimping member 400 swings downward around the hinge point and applies a clamping force to the lead wire 900, the locking engagement part 410 at the end of the crimping member 400 simultaneously approaches the locking part 120 on the clamp body 100, and engages after reaching the predetermined closed position, thereby mechanically locking the crimping member 400 on the clamp body 100 to form a stable crimping state.

[0107] By using a hinged connection between the crimping member 400 and the clamp body 100, the crimping action can be completed smoothly along a predetermined trajectory. This facilitates the application of force by the operator and ensures that the crimping process maintains a consistent direction, which helps reduce off-center loading and misalignment. At the same time, the snap-fit ​​relationship between the locking part 120 and the locking engagement part 410 ensures that the clamping force after crimping is maintained continuously, preventing loosening that could lead to poor contact between the lead wire 900 and the second conductor 300.

[0108] For example, the position where the clamp body 100 connects to the crimping member 400 can be configured as an open box shape. The locking member 520 and the second conductor 300 are both located within the open area, and the lead wire 900 passes through the open area and connects to the second conductor 300. After the locking engagement part 410 connects to the locking part 120, the crimping member 400 covers the opening of the clamp body 100, which helps protect the components inside the open area. The locking part 120 can be configured as a latch on the clamp body 100, and the locking engagement part 410 can be configured as a retaining ring at the end of the crimping member 400 away from the hinge axis. A combination of the latch and the retaining ring is provided on each side of the clamp body 100, providing a better latching effect and improving the connection strength between the locking engagement part 410 and the locking part 120.

[0109] In one embodiment, the installation method of the wire clamp is as follows: The lead wire 900 is placed on the second conductor 300, the crimping member 400 is rotated to close, the crimping member 400 pushes the locking member 520 to rotate, the locking member 520 disengages from the limiting groove, and the locking engagement part 410 on the crimping member 400 engages with the locking part 120 on the wire clamp body 100, maintaining the crimping state of the crimping member 400 on the lead wire 900. Part of the outer sheath of the cable 800 is stripped, and the receiving groove 101 of the wire clamp body 100 is placed over the cable 800. Then, the bolt connection pair 111 and the support member 112 are installed, and the limiting member 710 is screwed to move the screw 510 axially. The first conductor 200 moves with the screw 510, pressing the cable 800 tightly onto the support member 112. Insulating tape is wrapped around the connection between the first conductor 200 and the cable 800 to protect it.

[0110] The method for disassembling the wire clamp is as follows: Twist the limiting member 710 until the first conductor 200 disengages from the cable 800. The blocking member 720 gradually disengages from the locking engagement part 410. Continue to twist the limiting member 710 until the first conductor 200 moves to its maximum stroke position away from the support member 112. At this point, the limiting groove and the locking member 520 are in the same position. Remove the bolt connection pair 111 and the support member 112 from the wire clamp body 100, and then detach the wire clamp body 100 from the cable 800. Separate the locking engagement part 410 from the locking part 120, open the crimping member 400, and the crimping member 400 releases the lead wire 900, thus completing the disassembly of the wire clamp.

[0111] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only.

[0112] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A wire clamp, characterized in that, include: The wire clamp body (100) is provided with a limiting part (110) and a locking part (120). The first conductor (200) is movably disposed on the clamp body (100). The first conductor (200) is used to electrically connect the primary side cable (800) and press the cable (800) onto the limiting part (110). The second conductor (300) is disposed on the clamp body (100), and the second conductor (300) is electrically connected to the first conductor (200). The second conductor (300) is used to electrically connect the lead wire (900) on the secondary side. A crimping member (400) is movably disposed on the wire clamp body (100). The crimping member (400) is used to crimp the lead wire (900) to the second conductor (300). The crimping member (400) has a locking engagement part (410). The locking engagement part (410) is configured such that when the crimping member (400) crimps the lead wire (900), the locking engagement part (410) connects with the locking part (120) to lock the crimping member (400) onto the wire clamp body (100). A locking assembly (500) is connected to the clamp body (100) and the first conductor (200). The locking assembly (500) is configured to lock the first conductor (200) onto the clamp body (100), or to release the locking of the first conductor (200) when the locking engagement (410) is connected to the locking part (120).

2. The wire clamp according to claim 1, characterized in that, It also includes an intermediate conductor (600) that connects the first conductor (200) and the second conductor (300).

3. The wire clamp according to claim 2, characterized in that, The intermediate conductor (600) is an elastic metal strip or a flexible metal strip.

4. The wire clamp according to claim 1, characterized in that, The clamp body (100) has a receiving groove (101) for receiving the cable (800). The first conductor (200) is slidably disposed in the receiving groove (101) in the direction toward the limiting part (110). The limiting part (110) is detachably connected to the clamp body (100) and blocks the receiving groove (101).

5. The wire clamp according to claim 4, characterized in that, The limiting part (110) includes a bolt connection pair (111) and a support member (112) detachably connected to the bolt connection pair (111), and the crimping member (400) crimps the cable (800) onto the support member (112).

6. The wire clamp according to claim 2, characterized in that, The locking assembly (500) includes: A screw (510) is threadedly connected to the clamp body (100), and the end of the screw (510) is rotatably connected to the first conductor (200). A limiting groove is provided on the screw (510). A locking member (520) is hinged to the wire clamp body (100). The locking member (520) is configured to be inserted into the limiting groove to lock the screw (510), or to be pushed away from the limiting groove by the crimping member (400) when the crimping member (400) crimps the lead wire (900). A reset member (530) is connected to the locking member (520) and the clamp body (100). The reset member (530) is configured to drive the locking member (520) into the limiting groove when the crimping member (400) releases the crimping of the lead wire (900).

7. The wire clamp according to claim 6, characterized in that, The reset member (530) is a first elastic member, which is configured to deform and store energy when the locking member (520) disengages from the limiting groove, or to recover deformation when the crimping member (400) releases the crimping of the lead wire (900), so as to drive the locking member (520) to insert into the limiting groove.

8. The wire clamp according to claim 1, characterized in that, It also includes a limiting component (700) connecting the first conductor (200), the limiting component (700) being configured to limit the locking engagement portion (410) to maintain the connection between the locking engagement portion (410) and the locking portion (120), or to release the limiting of the locking engagement portion (410) when the distance between the first conductor (200) and the limiting portion (110) is greater than a preset value.

9. The wire clamp according to claim 8, characterized in that, The limiting component (700) includes: A limiting member (710) is connected to the first conductor (200); A blocking member (720) is movably disposed on the locking assembly (500) or the clamp body (100), and the blocking member (720) is used to limit the locking engagement part (410). The second elastic element (730) connects the limiting element (710) and the blocking element (720). The blocking member (720) is configured to be pushed against the locking engagement portion (410) by the second elastic member (730) to limit the locking engagement portion (410), or to be driven by the second elastic member (730) to disengage from and unlock the locking engagement portion (410) when the distance between the first conductor (200) and the limiting portion (110) is greater than the preset value.

10. The wire clamp according to any one of claims 1-9, characterized in that, The crimping member (400) is hinged to the clamp body (100), and the locking part (120) engages with the locking mating part (410).

Images