A relay protection device with quick wiring terminals

Abstract

The utility model relates to relay protection technical field and disclose a kind of relay protection device with quick wiring terminal, including relay body, wiring hole and wiring post in wiring hole are equipped on it;Wiring pipe, slidingly set in wiring hole;Clamp plate, is equipped with multiple groups and along the radial sliding setting of wiring pipe;Wherein, sliding block is equipped on clamp plate, and sliding block is equipped with elastic block, and wiring hole is equipped with the pin hole compatible with elastic block;When wiring pipe slides in, the inner wall of wiring hole extrudes sliding block, to drive multiple clamp plates synchronous radial contraction clamping external conductor;Wiring pipe continues to move, and its top end is electrically conducted with wiring post, while elastic block is connected with pin hole, to fix wiring pipe.The utility model integrates the three core functions of wire mechanical clamping, electrical conduction and position locking in single axial linear actuation process, thereby significantly simplifying assembly sequence, and improving operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of relay protection technology, specifically a relay protection device with quick-connect terminals. Background Technology

[0002] As a core electronic control switching device, the relay occupies a fundamental and crucial position in the field of electrical control and automation; its applications are wide-ranging, covering everything from consumer appliances to demanding industrial automation systems. Its basic working principle is to use a small electrical input signal (usually low voltage and low current) to drive its internal actuator (such as an electromagnet), thereby achieving a state switching of one or more electrical contacts at the output terminal, that is, a step transition from one stable state to another (such as from normally open to closed, or from normally closed to open), thus reliably isolating and controlling the high-voltage, high-current controlled main circuit.

[0003] However, in engineering practice, most mainstream relay products currently use screw-type crimp terminals as their electrical interfaces. This wiring method requires operators to use specialized tools (such as screwdrivers) to perform a series of operations such as stripping, inserting, aligning, and tightening each wire. This process not only significantly reduces the efficiency of on-site installation and commissioning, but also, especially in industrial control cabinets or distribution panels where relays are densely arranged and operating space is limited, the complexity of the operation and the stringent precision requirements make it easy to cause human error and lead to a cumbersome and inefficient overall construction process. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a relay protection device with quick-connect terminals, which can effectively solve the problem that it is inconvenient to operate in industrial control cabinets or distribution panels with dense relay layout and limited operating space, where special tools are required.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a relay protection device with quick-connect terminal block, including: a relay body, wherein the relay body is provided with a wiring hole and a terminal post located at the bottom of the wiring hole;

[0007] A conduit, which is slidably disposed within the wiring hole, is used to accommodate external wires;

[0008] The clamping plate is provided in multiple sets and is slidably arranged radially along the wiring pipe;

[0009] The clamp plate is connected to a slider that penetrates the wall of the wiring pipe, the slider is provided with an elastic block, and the inner wall of the wiring hole is provided with a pin hole that matches the elastic block.

[0010] When the connector slides inward along the axis of the connector hole, the inner wall of the connector hole presses against the slider to drive the multiple sets of clamping plates to synchronously contract radially and clamp the external wire; when the connector continues to move to the predetermined position, its top end is electrically connected to the terminal post, and at the same time the elastic block engages with the pin hole to fix the connector.

[0011] Preferably, the top end of the connector is provided with an elastic piece for elastic contact with the terminal block, and the elastic piece is horizontally V-shaped. The lower end of the elastic piece is fixedly connected to the top end of the connector, and the other end of the elastic piece elastically abuts against the terminal block.

[0012] Preferably, the inner wall of the wiring hole is provided with axially distributed grooves, and the outer circumferential surface of the wiring tube is provided with protrusions that slide in cooperation with the grooves. The width of the grooves is greater than the width of the protrusions, so as to allow the wiring tube to rotate at a predetermined angle while sliding axially.

[0013] Preferably, the elastic block includes a wedge-shaped block, the slider has an internal mounting hole, the wedge-shaped block is slidably connected to the inside of the mounting hole, and the end of the wedge-shaped block is connected to the inner wall of the mounting hole by a spring.

[0014] Preferably, the clamp is C-shaped, and both ends of the clamp are used to clamp external wires.

[0015] Preferably, the slider has a guide slope on the side facing the wiring hole inlet.

[0016] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0017] This invention achieves automatic clamping of the wire during insertion through the coordinated action of the conical guide surface on the inner wall of the connector, clamp, and connector hole. The precise engagement of the elastic block on the slider with the pin hole ensures the final mechanical locking of the connector position. This structural design guarantees a reliable "clamp first, lock later" sequence, effectively avoiding the risk of loose connections. This invention integrates the three core functions of mechanical clamping, electrical conduction, and position locking into a single axial linear actuation process, significantly simplifying the assembly sequence and improving operational efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the wiring conduit structure in an embodiment of this utility model;

[0021] Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified structural diagram of part A in the middle.

[0022] The labels in the diagram represent: 1. Relay body; 11. Wiring hole; 111. Slide groove; 12. Terminal post; 13. Pin hole; 2. Wiring tube; 21. Protrusion; 22. Elastic sheet; 3. Clamping plate; 31. Slider; 32. Elastic block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example:

[0026] Please see Figures 1-3 This utility model provides a technical solution: a relay protection device with quick-connect terminals, comprising: a relay body 1, a wiring tube 2, and a clamping plate 3;

[0027] The relay body 1 is provided with a wiring hole 11 and a terminal post 12 located at the bottom of the wiring hole 11; the wiring tube 2 is slidably disposed in the wiring hole 11 to accommodate external wires; the clamping plate 3 is provided with multiple sets and is slidably disposed along the wiring tube 2 radially;

[0028] Among them, the clamp plate 3 is connected to the slider 31 that penetrates the wall of the wiring pipe 2, the slider 31 is provided with an elastic block 32, and the inner wall of the wiring hole 11 is provided with a pin hole 13 that matches the elastic block 32.

[0029] When the connector 2 slides inward along the axis of the connector hole 11, the inner wall of the connector hole 11 presses against the slider 31 to drive multiple sets of clamping plates 3 to synchronously radially contract and clamp the external wire; when the connector 2 continues to move to the predetermined position, its top end is electrically connected to the terminal 12, and at the same time the elastic block 32 engages with the pin hole 13 to fix the connector 2.

[0030] Specifically, in use, first insert the end of the wire with the insulation stripped into the connector 2 until its end abuts against the inner wall of the connector 2; then, push the connector 2 inward along the axial direction of the connector hole 11; when the connector 2 is pushed to the predetermined stroke, the tapered guide surface of the inner wall of the connector hole 11 begins to squeeze the slider 31, thereby driving multiple sets of clamps 3 to synchronously contract radially from the initial open state, thus firmly clamping the wire; continue to push the connector 2 until the elastic piece 22 at its top makes reliable electrical contact with the terminal 12, at the same time, the elastic block 32 springs in under the action of the spring and engages in the pin hole 13, usually accompanied by a "click" sound, thus completing the mechanical locking of the connector 2. At this time, a complete and reliable electrical path is formed from the external wire, through the clamps 3, the connector 2, and finally to the terminal 12.

[0031] Furthermore, the inner wall of the wiring hole 11 is provided with an axially distributed groove 111, and the outer circumferential surface of the wiring tube 2 is provided with a protrusion 21 that slides and engages with the groove 111. The width of the groove 111 is greater than the width of the protrusion 21, so as to allow the wiring tube 2 to rotate at a predetermined angle while sliding axially.

[0032] Furthermore, the top end of the connector 2 is provided with an elastic piece 22 for elastic contact with the terminal 12, and the elastic piece 22 is horizontally V-shaped. The lower end of the elastic piece 22 is fixedly connected to the top end of the connector 2, and the other end of the elastic piece 22 elastically abuts against the terminal 12.

[0033] Furthermore, the elastic block 32 includes a wedge-shaped block, the slider 31 has an internal mounting hole, the wedge-shaped block is slidably connected to the inside of the mounting hole, and the end of the wedge-shaped block is connected to the inner wall of the mounting hole by a spring.

[0034] Furthermore, the clamp 3 is C-shaped, and both ends of the clamp 3 are used to clamp external wires.

[0035] Furthermore, the slider 31 has a guide slope on the side facing the inlet of the wiring hole 11.

[0036] Specifically, the width of the slide groove 111 is designed to be greater than the width of the protrusion 21, so as to allow the wiring tube 2 to rotate at a predetermined angle while sliding axially; in the locked state, the protrusion 21 abuts against one side wall of the slide groove 111, at which time the axial movement path of the elastic block 32 is aligned with the pin hole 13, thereby achieving the locking. When it is necessary to disassemble the wire, perform the following unlocking steps: First, continue to push the connector 2 inward a certain distance beyond its travel range; this distance is feasible because the elastic plate 22 at the top of the connector 2 is in elastic contact with the terminal 12, allowing the connector 2 to be further compressed and continue to move inward after being subjected to force; at this beyond-travel position, the edge of the pin hole 13 wall squeezes the wedge block, forcing the wedge block to overcome the spring force and retract into the mounting hole of the slider 31, thereby releasing the engagement between the elastic block 32 and the pin hole 13; continue to press and rotate the connector 2, so that the protrusion 21 slides from one side wall of the slide groove 111 to the other side wall; during this rotation, the elastic block 32 rotates accordingly, and its axial movement path is misaligned with the axial position of the pin hole 13; at this time, release the pressing force on the connector 2, and it can be pulled outward. Since the movement path of the elastic block 32 has been misaligned with the pin hole 13, it will not be locked into the pin hole 13 again during the retraction process, thereby achieving smooth disassembly of the device.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A relay protection device with quick-connect terminals, characterized in that, include: The relay body (1) has a wiring hole (11) and a terminal (12) located at the bottom of the wiring hole (11). A conduit (2) is slidably disposed within the wiring hole (11) to accommodate external wires; Clamping plate (3), the clamping plate (3) is provided in multiple sets and is slidably arranged radially along the wiring pipe (2); Among them, the clamp (3) is connected to a slider (31) that penetrates the wall of the wiring pipe (2), the slider (31) is provided with an elastic block (32), and the inner wall of the wiring hole (11) is provided with a pin hole (13) that matches the elastic block (32). When the connector (2) slides inward along the axis of the connector hole (11), the inner wall of the connector hole (11) presses the slider (31) to drive the multiple sets of clamps (3) to synchronously radially contract and clamp the external wire; when the connector (2) continues to move to the predetermined position, its top end is electrically connected to the connector post (12), and at the same time the elastic block (32) engages with the pin hole (13) to fix the connector (2).

2. The relay protection device with quick-connect terminal block according to claim 1, characterized in that: The top end of the connector (2) is provided with an elastic piece (22) for elastic contact with the terminal (12), and the elastic piece (22) is a horizontally arranged V-shape. The lower end of the elastic piece (22) is fixedly connected to the top end of the connector (2), and its other end elastically abuts against the terminal (12).

3. A relay protection device with quick-connect terminals according to claim 2, characterized in that: The inner wall of the wiring hole (11) is provided with an axially distributed groove (111), and the outer circumferential surface of the wiring tube (2) is provided with a protrusion (21) that slides and engages with the groove (111). The width of the groove (111) is greater than the width of the protrusion (21) so as to allow the wiring tube (2) to rotate at a predetermined angle while sliding axially.

4. A relay protection device with quick-connect terminals according to claim 1, characterized in that: The elastic block (32) includes a wedge-shaped block, and the slider (31) has an installation hole inside. The wedge-shaped block is slidably connected to the inside of the installation hole, and the end of the wedge-shaped block is connected to the inner wall of the installation hole by a spring.

5. A relay protection device with quick-connect terminals according to claim 1, characterized in that: The clamp (3) is C-shaped, and both ends of the clamp (3) are used to clamp external wires.

6. A relay protection device with quick-connect terminals according to claim 1, characterized in that: The slider (31) has a guide slope on the side facing the entrance of the wiring hole (11).

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