Copper wiring terminal for direct insertion type connector

Abstract

The utility model discloses a copper wiring terminal for a direct insertion type connector, a transition sleeve is in a frustum shape and is sleeved in a fixing head, a fixing bolt passes through a first fixing hole and a second fixing hole to fix the transition sleeve on the fixing head, and a cylinder and a connecting plug clamp a disc body; according to the copper wiring terminal for the direct insertion type connector provided by the utility model, the fixing head is cylindrical and is connected to the inner end of the length direction of the connecting plug, and the inner space of the fixing head is in a tapered frustum shape from the outer end to the inner end; after the transition sleeve is installed, the supporting rod is installed in place along with the transition sleeve and is fixed, at the moment, the clamping head cannot deform inwards, and stable connection is formed. After the transition sleeve is detached, the supporting rod can be withdrawn by taking the second fixing hole as an operation position, and the clamping head can be conveniently taken out due to deformation; therefore, under the large-size condition, installation is convenient, meanwhile, the transition sleeve serves as a consumption part, and other components are reused.

Description

Technical Field

[0001] The utility model relates to the field of terminals, in particular to a copper terminal for a plug-in connector. Background Art

[0002] Copper terminal blocks for plug-in connectors are metal terminals used for electrical connections, typically made of copper. They are primarily used to reliably connect wires to plug-in connectors, ensuring circuit continuity and signal transmission. Plug-in connectors are quick-plug and unplug connections that require no tools. They are widely used in low-voltage electrical appliances, distribution boxes, switchgear, and other applications. Typical applications include connecting sensors and actuators in industrial automation control systems, terminating cables in power distribution boxes, and wiring in buildings.

[0003] The primary function of copper terminals for plug-in connectors is to securely connect the wire to the connector while providing good electrical contact. They are designed to withstand mechanical stress and electrical loads, ensuring safe and reliable circuit operation. In-line connectors typically use spring clamps or screws to secure the copper terminals to the wire. This design avoids the complexities of traditional soldering or crimping processes, improving installation efficiency.

[0004] In some cases, the copper terminal blocks are large in size, making them difficult to operate on the plugging side and difficult to install on the cable connection side. Utility Model Content

[0005] The main purpose of the utility model is to provide a copper terminal block for a plug-in connector, aiming to solve the problems of large-sized copper terminal blocks, difficult operation on the plug-in side, and difficult installation on the cable connection side.

[0006] In order to achieve the above-mentioned object, the utility model provides a copper terminal block for a plug-in connector, which is used to fix an external cable and is characterized by comprising:

[0007] The plug connector is cylindrical and has a channel running through its center axis. The outer end of the plug connector in the longitudinal direction is radially penetrated by a plate-shaped gap to form two clamps.

[0008] a fixed head, which is cylindrical and connected to the inner end of the plug connector in the longitudinal direction; the inner space of the fixed head is tapered from the outer end to the inner end in a frustum shape; and a first fixing hole is radially penetrated through the inner end of the fixed head in the longitudinal direction;

[0009] A transition sleeve is in a frustum shape and is sleeved in the fixed head. The transition sleeve includes a column and a cylinder connected to each other. The column is provided with a second fixing hole corresponding to the first fixing hole. The cylinder is used to fix the external cable.

[0010] A support rod, comprising a rod body and a disc body connected to each other, wherein the rod body has the same diameter as the channel, the rod body penetrates the channel and separates the two clamping heads, and the disc body is located at the bottom of the fixing head;

[0011] A fixing bolt passes through the first fixing hole and the second fixing hole to fix the transition sleeve to the fixing head, and the column and the plug connector clamp the disc;

[0012] Wherein, the plug connector, the fixing head, the transition sleeve, the support rod and the fixing bolt are all made of copper.

[0013] Furthermore, at least one clamping ring is provided on the circumferential protrusion of the outer end in the length direction of the plug connector.

[0014] Furthermore, the number of the snap ring is one, the height of the snap ring protruding from the outer wall of the plug connector is H, and the thickness of the plate-shaped gap is 2H to 3H.

[0015] Furthermore, the front end of the fixing bolt is plugged into the fixing head, the rear end of the fixing bolt is threadedly connected to the fixing head, and the fixing bolt is plugged into the transition sleeve.

[0016] Furthermore, a soft conductive sheet is sandwiched between the transition sleeve and the disc body, and the thickness of the conductive sheet is 0.3 to 1.0 mm.

[0017] Furthermore, the transition sleeve and the fixed head form an interference fit.

[0018] Furthermore, the length of the plate-shaped gap is two-thirds to four-fifths of the length of the plug connector.

[0019] Furthermore, a soft conductive tube is clamped between the tube body and the fixed head, and the thickness of the conductive tube is 0.3 to 1.0 mm.

[0020] Furthermore, the plug connector and the fixing head are an integrally formed structure.

[0021] Furthermore, the plug connector and the fixing head are connected by friction welding.

[0022] The copper terminal block for a plug-in connector provided by the utility model has a plug connector in a columnar shape with a channel passing through the central axis, a plate-shaped gap passing through the outer end of the plug connector in the radial direction to form two clamping heads, a fixed head in a cylindrical shape and connected to the inner end in the length direction of the plug connector, and an internal space of the fixed head in a tapered cone shape from the outer end to the inner end; after the transition sleeve is installed, the support rod is also installed in place and fixed, and at this time the clamping head cannot be deformed inward, forming a stable connection; when the transition sleeve is removed, the support rod can be withdrawn through the second fixing hole as an operating position, and the clamping head can be easily deformed and taken out; thereby, installation is convenient under large-size conditions, and the transition sleeve is used as a consumable part, while other components are reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the assembly of a copper terminal block for a plug-in connector according to the first embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the plug connector and the fixed head of the copper terminal block for the plug-in connector of the first embodiment of the utility model;

[0025] Figure 3 This is a cross-sectional view of a transition sleeve in a copper terminal block for a plug-in connector according to the first embodiment of the present utility model;

[0026] Figure 4 It is a cross-sectional view of a copper terminal block for a plug-in connector according to the first embodiment of the present utility model.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Those skilled in the art will understand that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements, units, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0030] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art in the field to which this invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0031] Reference Figures 1 to 4 In one embodiment of the present invention, a copper terminal block for a plug-in connector includes:

[0032] The plug connector 100 is cylindrical and has a channel 110 passing through its center axis. A plate-shaped gap 120 is passed through the outer end of the plug connector 100 in the radial direction to form two clamping heads 130.

[0033] The fixing head 200 is cylindrical and connected to the inner end of the plug connector 100 in the longitudinal direction. The inner space of the fixing head 200 is tapered from the outer end to the inner end in a frustum shape. The inner end of the fixing head 200 in the longitudinal direction is radially penetrated by a first fixing hole 210.

[0034] The transition sleeve 300 is in a frustum shape and is sleeved in the fixed head 200. The transition sleeve 300 includes a column 310 and a cylinder 320 connected to each other. The column 310 is provided with a second fixing hole 311 corresponding to the first fixing hole 210. The cylinder 320 is used to fix the external cable 010.

[0035] The support rod 400 includes a rod body 410 and a disk body 420 connected to each other. The rod body 410 has the same diameter as the channel 110. The rod body 410 penetrates the channel 110 and separates the two clamping heads 130. The disk body 420 is located at the bottom of the fixing head 200.

[0036] The fixing bolt 500 passes through the first fixing hole 210 and the second fixing hole 311 to fix the transition sleeve 300 to the fixing head 200 . The column 310 and the plug connector 100 clamp the disc 420 .

[0037] The plug connector 100 , the fixing head 200 , the transition sleeve 300 , the support rod 400 and the fixing bolt 500 are all made of copper.

[0038] In the prior art, in some cases, the size of the copper terminal block is relatively large, which makes the operation on the plugging side difficult and also makes the installation on the cable connection side difficult.

[0039] The copper terminal block for the plug-in connector provided by the present invention is used to fix the cable 010. The plug connector 100, the fixing head 200, the transition sleeve 300, the support rod 400 and the fixing bolt 500 are all made of copper to avoid electrochemical corrosion.

[0040] The plug connector 100 is cylindrical and has a channel 110 running through its center axis. It mates with an external socket, securing the copper terminal and establishing a conductive connection. A plate-like gap 120 runs radially through the outer end of the plug connector 100, forming two clips 130. The cross-section of the clips 130 is curved on one side and straight on the other. When the plug connector 100 is inserted into or removed from the mounting hole, the two clips 130 deform toward the plate-like gap 120, reducing the force required during operation.

[0041] The fixing head 200 is cylindrical and connected to the inner end of the plug connector 100. The fixing head 200 is used to connect to the external cable 010, but the cable 010 does not plug directly into the fixing head 200. The internal space of the fixing head 200 has a tapered cone shape from the outer end to the inner end. A first fixing hole 210 is radially penetrated through the inner end of the fixing head 200. The spacing between the first fixing hole 210 and the plug connector 100 is designed based on the dimensions of the subsequent support rod 400.

[0042] The transition sleeve 300 is in the shape of a cone and is sleeved into the fixed head 200. When the transition sleeve 300 is combined with the fixed head 200, the cone-shaped configuration of the two forms a stable fit. The transition sleeve 300 includes a column 310 and a cylinder 320 that are connected to each other. The cylinder 320 is used to fix the external cable 010. After the cable 010 is inserted into the cylinder 320, the cylinder 320 is deformed by a corresponding tool so that the cable 010 can be fixed by the cylinder 320. The column 310 is used to provide structural strength and fixing effect. A second fixing hole 311 is provided on the column 310 corresponding to the first fixing hole 210.

[0043] The support rod 400 includes a rod body 410 and a disc body 420 that are connected to each other. The rod body 410 has the same diameter as the channel 110 and is inserted into the channel 110. When the support rod 400 is in the installation position, the clamp head 130 is supported and cannot deform inward, forming a stable connection. The disc body 420 is located at the bottom of the fixed head 200. The fixing bolt 500 passes through the first fixing hole 210 and the second fixing hole 311 to fix the transition sleeve 300 to the fixed head 200. The column 310 and the plug connector 100 clamp the disc body 420. After the transition sleeve 300 is installed, the support rod 400 is also installed and fixed. At this time, the clamp head 130 cannot deform inward, forming a stable connection. When the transition sleeve 300 is removed, the support rod 400 can be withdrawn through the second fixing hole 311 as the operating position, and the clamp head 130 can be easily deformed and removed.

[0044] In summary, the plug connector 100 is cylindrical and has a channel 110 passing through its central axis. A plate-like gap 120 passes through the outer end of the plug connector 100 in the radial direction to form two clamps 130. The fixed head 200 is cylindrical and connected to the inner end of the plug connector 100 in the length direction. The internal space of the fixed head 200 is a tapered cone from the outer end to the inner end. After the transition sleeve 300 is installed, the support rod 400 is also installed in place and fixed. At this time, the clamp 130 cannot deform inward, forming a stable connection. When the transition sleeve 300 is removed, the support rod 400 can be withdrawn through the second fixing hole 311 as an operating position, and the clamp 130 can be easily deformed and taken out. Therefore, under large-size conditions, installation is convenient, and the transition sleeve 300 is used as a consumable part, and other components are reused.

[0045] Reference Figure 1 In one embodiment, the outer end of the plug connector 100 in the longitudinal direction is provided with at least one snap ring on its circumferential protrusion.

[0046] In this embodiment, the fixing stability is improved by introducing the snap ring, and the number of the snap rings is not limited, preferably 1 to 3. Of course, the corresponding plug hole of the plug connector 100 needs to be provided with an annular fixing groove corresponding to the snap ring.

[0047] In one embodiment, the number of the snap ring is one, the height of the snap ring protruding from the outer wall of the plug connector 100 is H, and the thickness of the plate-shaped gap 120 is 2H to 3H.

[0048] In this embodiment, the thickness of the plate-shaped gap 120 is limited to provide sufficient deformation space for the clamping ring to be released from its fixed structure. Considering that the clamping head 130 is relatively strong and is not easily adhered when subjected to external pressure, the thickness of the plate-shaped gap 120 is increased.

[0049] Reference Figure 4 In one embodiment, the front end of the fixing bolt 500 is plugged into the fixing head 200, the rear end of the fixing bolt 500 is threadedly connected to the fixing head 200, and the fixing bolt 500 is plugged into the transition sleeve 300.

[0050] In this embodiment, the threaded structure is provided only at the end of the fixing bolt 500. This simplifies the structure while ensuring accurate positioning of the fixing bolt 500 and the transition sleeve 300. For example, if the entire fixing bolt 500 were provided with external threads, the probability of deformation of the portion corresponding to the transition sleeve 300 would be increased.

[0051] In one embodiment, a soft conductive sheet is sandwiched between the transition sleeve 300 and the disc body 420 , and the thickness of the conductive sheet is 0.3 to 1.0 mm.

[0052] In this embodiment, a conductive sheet is used to achieve a stable connection between the transition sleeve 300 and the support rod 400. The conductive sheet can be made of soft copper. The conductive sheet provides both elasticity and electrical conductivity. The thickness of the conductive sheet can be relatively thin, thereby enhancing the deformation effect. Limiting the thickness of the conductive sheet to a relatively thin range allows the conductive sheet to deform more easily, resulting in a better deformation effect. This increases the elastic force while also improving the electrical connection.

[0053] In one embodiment, the transition sleeve 300 forms an interference fit with the fixing head 200 .

[0054] In this embodiment, a certain dimensional interference is achieved, so that the connection between the transition sleeve 300 and the fixed head 200 is better, the connection is more stable, and the electrical performance is better.

[0055] In one embodiment, the length of the plate-shaped gap 120 is two-thirds to four-fifths of the length of the plug connector 100 .

[0056] In this embodiment, the length of the plate-shaped gap 120 along the length of the plug connector 100 corresponds to the length of the clamping head 130. If the clamping head 130 is too long, the structural strength of the entire plug connector 100 will be weakened. If the clamping head 130 is too short, the elastic deformation capability will be weakened. The length of the clamping head 130 is limited to achieve a balance between strength and deformation performance.

[0057] In one embodiment, a soft conductive tube is sandwiched between the tube body 320 and the fixing head 200 , and the thickness of the conductive tube is 0.3 to 1.0 mm.

[0058] In this embodiment, the introduction of a conductive tube improves the contact and electrical connection between the barrel 320 and the fixing head 200. The thickness of the conductive tube is limited to a relatively thin range, making it easier for the conductive tube to deform, thereby enhancing deformation and improving the elastic force while also improving the electrical connection. The conductive tube is preferably made of copper, which provides superior electrical performance between the conductive tube and the barrel 320 and the fixing head 200.

[0059] Reference Figure 2 In one embodiment, the plug connector 100 and the fixing head 200 are an integrally formed structure.

[0060] In this embodiment, the plug connector 100 and the fixing head 200 are made of the same material, for example, copper. Since the copper terminal is relatively small, it is convenient to form the plug connector 100 and the fixing head 200 as an integral structure. It should be noted that after the integral molding is completed, some post-processing can be performed to complete the overall detailed molding.

[0061] In one embodiment, the plug connector 100 and the fixing head 200 are connected by friction welding.

[0062] In this embodiment, considering the large dimensions of copper terminals in some cases, which makes integral molding more difficult, the connection method between the plug connector 100 and the fixed head 200 is limited to friction welding. This allows the two to be molded separately and then friction welded together. It should be noted that after integral molding, certain post-processing can be performed to complete the overall detailed molding.

[0063] In summary, the copper terminal block for the plug-in connector provided by the present invention has a plug connector 100 that is columnar and has a channel 110 passing through the central axis. A plate-like gap 120 passes through the outer end of the plug connector 100 in the radial direction to form two clamping heads 130. The fixed head 200 is cylindrical and connected to the inner end of the plug connector 100 in the length direction. The internal space of the fixed head 200 is a tapered cone from the outer end to the inner end. After the transition sleeve 300 is installed, the support rod 400 is also installed in place and fixed. At this time, the clamping head 130 cannot be deformed inward, forming a stable connection. When the transition sleeve 300 is removed, the support rod 400 can be withdrawn through the second fixing hole 311 as an operating position, and the clamping head 130 can be easily deformed and taken out. Therefore, under large-size conditions, installation is convenient, and the transition sleeve 300 is used as a consumable part, and other components are reused.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A copper terminal block for a plug-in connector, used for fixing an external cable (010), characterized in that: include: The plug connector (100) is columnar and has a channel (110) passing through the central axis. The outer end of the plug connector (100) in the longitudinal direction is penetrated by a plate-shaped gap (120) in the radial direction to form two clamps (130); The fixing head (200) is cylindrical and connected to the inner end of the plug connector (100) in the longitudinal direction. The inner space of the fixing head (200) is tapered from the outer end to the inner end in a frustum shape. The inner end of the fixing head (200) in the longitudinal direction is radially penetrated by a first fixing hole (210). A transition sleeve (300) is in a frustum shape and is sleeved in the fixed head (200). The transition sleeve (300) includes a column (310) and a cylinder (320) connected to each other. A second fixing hole (311) is provided on the column (310) corresponding to the first fixing hole (210). The cylinder (320) is used to fix the external cable (010). A support rod (400) comprises a rod body (410) and a disk body (420) connected to each other, wherein the rod body (410) has the same diameter as the channel (110), the rod body (410) penetrates the channel (110) and separates the two clamping heads (130), and the disk body (420) is located at the bottom of the fixing head (200); A fixing bolt (500) passes through the first fixing hole (210) and the second fixing hole (311) to fix the transition sleeve (300) to the fixing head (200), and the column (310) and the plug connector (100) clamp the disc (420); Wherein, the plug connector (100), the fixed head (200), the transition sleeve (300), the support rod (400) and the fixing bolt (500) are all made of copper.

2. The copper terminal block for a plug-in connector according to claim 1, wherein: The outer end of the plug connector (100) in the longitudinal direction is provided with at least one snap ring on its circumferential protrusion.

3. The copper terminal block for a plug-in connector according to claim 2, wherein: The number of the snap ring is one, the height of the snap ring protruding from the outer wall of the plug connector (100) is H, and the thickness of the plate-shaped gap (120) is 2H to 3H.

4. The copper terminal for a plug-in connector according to claim 1, wherein: The front end of the fixing bolt (500) is plugged into the fixing head (200), the rear end of the fixing bolt (500) is threadedly connected to the fixing head (200), and the fixing bolt (500) is plugged into the transition sleeve (300).

5. The copper terminal for a plug-in connector according to claim 1, wherein: A soft conductive sheet is sandwiched between the transition sleeve (300) and the disc body (420), and the thickness of the conductive sheet is between 0.3 and 1.0 millimeters.

6. The copper terminal for a plug-in connector according to claim 5, characterized in that: The transition sleeve (300) forms an interference fit with the fixed head (200).

7. The copper terminal for a plug-in connector according to any one of claims 1 to 6, characterized in that: The length of the plate-shaped gap (120) is two-thirds to four-fifths of the length of the plug connector (100).

8. The copper terminal for a plug-in connector according to any one of claims 1 to 6, characterized in that: A soft conductive tube is clamped between the tube body (320) and the fixed head (200), and the thickness of the conductive tube is between 0.3 and 1.0 millimeters.

9. The copper terminal for a plug-in connector according to any one of claims 1 to 6, characterized in that: The plug connector (100) and the fixing head (200) are an integrally formed structure.

10. The copper terminal for a plug-in connector according to any one of claims 1 to 6, characterized in that: The plug connector (100) and the fixed head (200) are connected by friction welding.

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