Annular wiring terminal and wiring method

Abstract

The invention relates to an annular wiring terminal and a wiring method, the wiring terminal comprises a positioning part at the front end and a wire pressing part at the rear end, the wire pressing part is used for fixing a wire, the upper end surface of the positioning part is provided with an annular groove, and the annular groove is used for accommodating an inner conductor after the outer skin of the front end of the wire is stripped; an upper cover plate which can be folded up and down is arranged on the outer wall of the annular groove on the outer side of the annular groove, and the upper cover plate can be pressed on the inner conductor in the annular groove when being buckled downwards; the fixing teeth located on the outer wall of the upper cover plate or the outer wall of the annular groove can provide force for the upper cover plate to keep the upper cover plate in the buckling state in the bending state. Through the arrangement of the annular groove and the upper cover plate, rapid and reliable wiring of the conductor in the wire is achieved, and assistance of a special tool is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a ring-shaped wiring terminal and a wiring method. Background Art

[0002] Terminal blocks are widely used in aviation electrical systems and test systems due to their simple and reliable connection structure. When connecting terminal blocks to wires, there are two conventional termination methods: crimping and welding. When crimping, a special crimping tool is generally required to crimp or mold the conductor of the wire into the terminal barrel; when welding, a soldering iron and solder are required to weld the conductor to the barrel.

[0003] Existing terminal blocks such as Figure 1 As shown in the figure, the disadvantage of this termination method is that it requires the use of special crimping tools or welding tools. Terminal crimping tools are generally not universal, which increases the types and number of maintenance tools; welding tools need to be powered on and heated, and the place where they are used needs to have power supply conditions. At the same time, welding is only suitable for tinned and silver-plated conductors, which limits the scope of use. Summary of the invention

[0004] To solve the above problems, the present invention provides a novel ring-shaped terminal, which realizes tool-free quick wiring by providing an annular groove for accommodating the wire stripping head and an upper end cover for pressing the stripped inner conductor in the positioning part of the terminal.

[0005] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions. According to the annular terminal proposed by the present invention, it includes a positioning part 1 at the front end and a wire pressing part 2 at the rear end, the wire pressing part 2 is used to fix the wire 10, the upper end surface of the positioning part 1 has an annular groove 3, the annular groove 3 is used to accommodate the inner conductor 11 after the outer skin of the front end of the wire 10 is stripped; the outer wall 5 of the annular groove 3 is provided with an upper cover plate 7 that can be folded up and down, and the upper cover plate 7 can be pressed on the inner conductor 11 in the annular groove when buckled downward; the fixing teeth 8 located on the upper cover plate 7 or the outer wall 5 of the annular groove can provide a force for the upper cover plate 7 to keep it in the buckled state in the bent state.

[0006] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0007] In the aforementioned annular terminal, the positioning portion 1 and the upper cover plate 7 are respectively provided with a positioning hole 6 and a through hole 71 for allowing bolts or studs to pass through, and nuts for locking the bolts and studs can be pressed on the upper cover plate 7, so that the upper cover plate 7 further presses the inner conductor 11 in the annular groove 3, further reducing the on-resistance of the terminal crimping and increasing the pull-out force of the wire.

[0008] In the aforementioned annular terminal, there are no fixing teeth 8 on the upper cover plate 7 and the outer wall 5 of the annular groove. At this time, the inner conductor is only initially limited by the upper cover plate 7 during crimping, and the inner conductor is reliably compressed by the action of the nut during fixed positioning.

[0009] In the aforementioned annular terminal, the upper cover plate 7 is connected to the outer wall of the annular groove through a folding piece, and the upper cover plate is folded up and down by bending the folding piece.

[0010] In the aforementioned annular terminal, the upper cover plate 7 is rotatably disposed on the outer wall 5 of the annular groove, and the upper cover plate is turned upside down by rotating around the rotation axis.

[0011] When the aforementioned annular terminal is in the buckled state, supported by the inner conductor 11 , the lower end surface of the upper cover plate 7 is fitted with the upper end surface of the inner wall of the annular groove 3 with a small gap.

[0012] When the aforementioned annular terminal is in the buckled state, the inner wall of the through hole 71 on the upper cover plate cooperates with the inner wall of the annular groove 3 with a small gap, so that the upper cover plate can enter the annular groove for wire pressing.

[0013] The aforementioned annular terminal, the wire pressing portion includes a wire pressing groove for carrying the wire and a wire pressing structure distributed on both sides of the wire pressing groove, and the wire pressing structure can press the wire after being bent.

[0014] The aforementioned ring-shaped terminal is integrally formed.

[0015] The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. A wiring method for a ring-shaped terminal proposed in the present invention includes the following steps: 1) stripping the wire 10 according to the set length, and then placing the stripped wire 10 on the wire pressing part 2, and laying the inner conductor stripped from the front end of the wire 10 in the annular groove, so that the annular groove 3 is filled with the inner conductor; 2) flipping down the upper cover plate 7 so that it is pressed on the inner conductor 11 in the annular groove 3, and then bending the fixing teeth 3 to keep the upper end cover 7 in a state of pressing the inner conductor; 3) bending the wire pressing structure to fix the wire 10 in the wire pressing groove of the wire pressing part. The present invention can achieve fast and reliable wiring without the assistance of special wiring tools during the wiring process.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solution, the present invention can achieve considerable technical advancement and practicality, and has wide industrial utilization value, and has at least the following advantages:

[0017] 1) When the ring-shaped terminal of the present invention is connected to a wire, the conductor coating type is not limited, no special tools are required, and the use and maintenance are convenient.

[0018] 2) After the ring-shaped terminal of the present invention is connected to the conductor, the effective contact length between the metals is long, and when fixed to the terminal post, the ring-shaped connection is compressed by the nut, further reducing the on-resistance of the terminal crimping and increasing the pull-out force of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an existing wiring terminal;

[0020] Figure 2 A schematic structural diagram of a ring-shaped terminal block of the present invention;

[0021] Figure 3 A schematic diagram of the ring-shaped terminal of the present invention starting to connect wires;

[0022] Figure 4 It is a schematic diagram of the ring-shaped terminal of the present invention when the upper cover is closed during wiring;

[0023] Figure 5 It is a schematic diagram of the upper cover of the ring-shaped terminal of the present invention being fixed during wiring;

[0024] Figure 6 This is a schematic diagram of the wiring completion state of the ring-shaped terminal of the present invention.

[0025]

Main component symbol description

[0026] 1: Positioning unit

[0027] 2: Wire pressing part

[0028] 3: Annular groove

[0029] 4: Inner wall of ring groove

[0030] 5: Outer wall of ring groove

[0031] 6: Positioning hole

[0032] 7: Upper cover

[0033] 71: Through hole

[0034] 8: Fixed teeth

[0035] 9: Pressing structure

[0036] 10: Wire

[0037] 11: Inner conductor

[0038] 12: Wire groove

[0039] 13: Fold DETAILED DESCRIPTION

[0040] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the ring terminal proposed according to the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0041] See also Figure 2-6 , which is a schematic diagram of the structure of each part of the ring-shaped terminal of the present invention, the ring-shaped terminal includes a positioning portion 1 and a wire pressing portion 2, wherein the positioning portion 1 is flat and has a positioning hole 6 for a bolt or a stud to pass through, which is used to achieve the fixed positioning of the terminal, the front end of the wire pressing portion 2 is connected to the positioning portion 1 and the upper end surface has a wire pressing groove 12 for accommodating the wire 10. The upper end surface of the positioning portion 1 also has an annular groove 3, and the inner conductor 11 of the wire 11 located in the wire pressing groove 12 on the wire pressing portion 2 is located in the annular groove 3 after the outer skin is stripped from the front end.

[0042] The wall outside the annular groove 3 is defined as the annular groove outer wall 5, and the wall inside the annular groove 3 is defined as the annular groove inner wall 4. The annular groove outer wall 5 outside the annular groove 3 is also provided with an upper cover plate 7, which can be buckled downward to cover the annular groove 3, and can also be opened upward to open the annular groove 3. In this embodiment, the upper cover plate 7 is fixed on the upper end surface of the annular groove outer wall 5 by a folding piece 13, wherein the folding piece 13 is arranged perpendicular to the upper end surface of the annular groove outer wall 5, and the upper end of the folding piece 3 is connected to the outer peripheral surface of the cover plate 7, so that when the terminal block is not connected to the wire, the upper cover plate 7 is vertically arranged on one side of the annular groove 3, and will not interfere with the winding and fixing of the inner conductor in the annular groove 3. In other embodiments of the present invention, the folding piece 13 and the annular groove outer wall 5 can also present an angle other than 90 degrees, that is, the upper cover plate 7 is half-opened above the annular groove 3, or opened to a position outside the annular groove 3. When the inner conductor 11 at the front end of the wire 10 is completely coiled in the annular groove 3, the upper cover plate 7 can be rotated to buckle downward and cover the inner conductor 11 in the annular groove 3, so that the inner conductor 11 is pressed and fixed in the annular groove 3, thereby achieving the initial fixation of the inner conductor 11 in the annular groove 3. In this embodiment, the upper cover plate 7, the folding piece 13 and the outer wall 5 of the annular groove are integrally formed, but are not limited to this. In other embodiments of the present invention, a groove is provided on the outer wall 5 of the annular groove, and the upper cover plate 7 is rotatably connected to the groove through a protrusion on one side thereof, thereby achieving the rotational opening and closing of the upper cover plate 7 relative to the annular groove 3, but are not limited to this. In another embodiment of the present invention, the folding piece 13 is fixed on the outer peripheral surface of the outer wall 5 of the annular groove, but are not limited to this.

[0043] In this embodiment, in order to enhance the initial fixation of the inner conductor 11 in the annular groove 3, a plurality of fixing teeth 8 are evenly distributed along the circumferential direction on the upper end surface of the annular groove outer wall 5. When the upper cover plate 7 is pressed on the inner conductor 11 in the annular groove 3, the fixing teeth 8 distributed along the circumferential direction of the annular groove 3 can be bent to be pressed against the upper end surface of the upper cover plate 7, thereby achieving the buckling and locking of the upper cover plate 7 on the annular groove 3.

[0044] A through hole 71 for a bolt or a stud to pass through is also provided at a position on the upper cover plate 7 corresponding to the positioning hole 6. When the bolt or the stud passing through the positioning hole 6 cooperates with the nut to fix the terminal, the nut can press the upper cover plate 7, so that the upper cover plate 7 presses the inner conductor 11 in the annular groove 3, and the inner conductor 11 is reliably positioned in the annular groove 3, thereby not only increasing the tensile strength of the wire 10, but also further reducing the on-resistance at the terminal crimping point.

[0045] In the embodiment of the present invention, when the upper cover plate 7 is buckled, the lower end surface of the upper cover plate 7 can be pressed on the upper end surface of the inner wall 4 of the annular groove, and when the inner conductor 11 is arranged in the annular groove 3, the lower end surface of the upper cover plate 7 presses the inner conductor 11 in the annular groove 3 and is gap-matched with the upper end surface of the inner wall 4 of the annular groove. At this time, there is also a gap fit between the outer circumference of the upper cover plate 7 and the inner circumference of the outer wall 5 of the annular groove, and the inner conductor 11 is located in a nearly closed space, which can effectively prevent it from being contaminated or damaged. The cooperation between the upper cover plate 7 and the inner wall 4 of the annular groove of the present invention enables the inner conductors located in the inner and outer circles of the annular groove 3 to be pressed by the upper cover plate 7, which can effectively ensure the crimping reliability of the inner conductor 11.

[0046] In another embodiment of the present invention, when the upper cover plate 7 is buckled, the inner circumferential surface of the through hole 71 on the upper cover plate 7 is gap-matched with the inner wall 4 of the annular groove, that is, the upper cover plate 7 can enter the annular groove 3 to compress the inner conductor 11, so that when the terminal block of the present invention is crimped with wires of different sizes, the inner conductor 11 only needs to be wound around once in the annular groove 3, and the upper cover plate 7 can compress the inner conductor 11 without increasing the laying thickness of the inner conductor 11 in the annular groove.

[0047] In an embodiment of the present invention, the annular groove 3 is a circular groove, while in other embodiments of the present invention, the cross-section of the annular groove 3 may be a quadrilateral, a triangle, or an irregular shape.

[0048] In an embodiment of the present invention, the annular groove 3 is a closed annular structure, while in other embodiments of the present invention, the annular groove 3 may also be an annular structure with one side open. In this case, the inner conductor at the front end of the wire 10 can only be laid along the shape of the annular groove 3 on one side of the opening.

[0049] The groove walls on both sides of the wire pressing groove 12 of the wire pressing part 2 are provided with a wire pressing structure 9 for pressing the insulating layer of the wire 10 after bending, so as to fix the wire 10 in the wire pressing groove 12. The setting of the wire pressing structure 9 can ensure the stability of the matching between the wire 10 and the terminal, and improve the environmental resistance of both. Preferably, the wire pressing structure 9 is a right triangle, and is relatively distributed on the walls on both sides of the wire pressing groove 12, and the relatively distributed wire pressing structures 9 form a point-symmetrical figure, so that after bending, the two relatively distributed wire pressing structures 9 and the wire pressing groove 12 together form an enclosing structure to achieve reliable positioning of the wire.

[0050] In this embodiment, the wall of the wire pressing groove 12 of the wire pressing portion 2 is connected to the outer wall 5 of the annular groove on the positioning portion 1, and the wire pressing groove 12 is connected to the annular groove 3. Preferably, the wiring terminal of the present invention is an integrally formed structure.

[0051] The actual wiring terminal of the present invention is connected according to the following steps:

[0052] 1) Strip the wire 10 to be connected according to the required length of arrangement in the annular groove 3, place the stripped wire 10 in the wire pressing groove of the wire pressing part, and place the inner conductor 11 stripped from the front end of the wire 10 in the annular groove 3, then turn down the upper cover plate 7 to press the inner conductor 11 in the annular groove 3, and complete the preliminary fixation of the inner conductor. When the outer wall 5 of the annular groove is provided with a fixing tooth 3, in this step, it is also necessary to bend the fixing tooth 3 so that it is buckled on the upper cover plate 7 to further strengthen the fixation of the inner conductor, so that a reliable connection is formed between the inner conductor and the metal at the positioning part 1 to transmit signals or currents.

[0053] 2) Bend the wire pressing structure to press the insulation layer of the wire.

[0054] In the above step 1), the stripping length of the wire 10 is determined according to the outer diameter of the wire 10 and the size of the annular groove 3. When the outer diameter of the wire 10 is small, in order to facilitate the upper cover plate 7 to press the inner conductor, the inner conductor needs to be wound multiple times in the annular groove 3. When the outer diameter of the wire 10 is large, the inner conductor only needs to be laid along the annular groove 3 for one circle.

[0055] In other embodiments of the present invention, the positioning portion can be fixedly positioned by other structures, eliminating the design of positioning holes and through holes.

[0056] In other embodiments of the present invention, the fixing teeth 8 may also be arranged on the edge of the upper cover plate 7. When the upper cover plate 7 is buckled, the fixing teeth 8 may be bent and buckled on the outer peripheral surface of the outer wall of the annular groove, but it is not limited thereto.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A ring-shaped terminal, comprising a positioning portion at the front end and a wire pressing portion at the rear end, wherein the wire pressing portion is used to fix the wire. Features: The upper end surface of the positioning portion is provided with an annular groove, which is used to accommodate the inner conductor after the outer skin of the front end of the wire is stripped; an upper cover plate that can be folded up and down is provided on the outer wall of the annular groove outside the annular groove, and the upper cover plate can be pressed on the inner conductor in the annular groove when buckled downward; the fixing teeth provided on the upper cover plate or the outer wall of the annular groove can provide a force for the upper cover plate to keep it in a buckled state in a bent state.

2. The ring terminal according to claim 1, Features: The positioning portion and the upper cover plate are also respectively provided with positioning holes and through holes for bolts or studs to pass through, and nuts for locking the bolts and studs can be pressed on the upper cover plate, so that the upper cover plate further presses the inner conductor in the annular groove.

3. The ring terminal according to claim 2, Features: There are no fixed teeth on the upper cover plate and the outer wall of the annular groove.

4. The ring terminal according to claim 2, Features: The upper cover plate is connected to the outer wall of the annular groove through a folding piece.

5. The ring terminal according to claim 2, Features: The upper cover plate is rotatably arranged on the outer wall of the annular groove.

6. The ring terminal according to claim 2, Features: When in the buckled state, supported by the inner conductor, the lower end surface of the upper cover plate is gap-matched with the upper end surface of the inner wall of the annular groove.

7. The ring terminal according to claim 2, Features: When in the buckled state, the inner wall of the through hole on the upper cover plate is gap-matched with the inner wall of the annular groove, so that the upper cover plate can enter the annular groove.

8. The ring-shaped terminal according to any one of claims 1 to 7, Features: The wire pressing part includes a wire pressing groove for carrying the wire and a wire pressing structure distributed on both sides of the wire pressing groove, and the wire pressing structure can press the wire after being bent.

9. The ring terminal according to claim 8, Features: The wire pressing structures are distributed opposite to each other in pairs on the two side walls of the wire pressing groove, and any two oppositely distributed wire pressing structures form a point-symmetrical figure, which can jointly surround the same position of the outer periphery of the wire after bending.

10. The ring-shaped terminal according to any one of claims 1 to 4, 6 to 7, Features: The connecting terminal is integrally formed.

11. A wiring method for a ring terminal, It is characterized in that The following steps are involved: 1) Strip the wire according to the set length, then place the stripped wire on the wire pressing part, and lay the inner conductor stripped from the front end of the wire in the annular groove; 2) Flip down the upper cover plate to press it on the inner conductor in the annular groove, and then bend the fixing teeth to keep the upper end cover in a state of pressing the inner conductor; 3) Bend the wire pressing structure to fix the wire in the wire pressing groove of the wire pressing part.

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