Anti-oxidation copper tube terminal

Abstract

The invention discloses an anti-oxidation copper tube terminal which comprises a bobbin and a connecting lug connected to a sealing end, the connecting lug further comprises an open hole used for penetrating and fixing, a guide mechanism is further arranged in the bobbin, and the guide mechanism guides a wire core to bend and deform through movement of the wire core and is embedded in the bobbin. The guide mechanism comprises an annular body of which the edge is connected with the inner wall of the bobbin; and meanwhile, a cambered surface structure arranged on the surface of the annular body is used for guiding the wire core to move. According to the anti-oxidation copper tube terminal, under the condition that it is guaranteed that the size of a bobbin is not large, movement guiding and auxiliary limiting are effectively conducted on a wire core, in cooperation with deformation of the bobbin under pressure application equipment, the bobbin can stably fix the wire core, the heat conduction and electric conduction effects can be guaranteed, and the anti-oxidation copper tube terminal is suitable for the current actual use environment and production level; and a better use effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of connection terminals, in particular to a copper tube terminal used for connecting cables, and specifically to an anti-oxidation copper tube terminal. Background Art

[0002] The connection between the battery core in the cable and other equipment cannot be directly fixed by winding, especially when multiple cores are electrically connected, a terminal is needed as a transfer mechanism, and its general shape is a tube structure for accommodating the cable core plus an ear structure for connecting the equipment. For example, a terminal block with a publication number of CN114243332A in the prior art is used to connect the wire to the air switch, and the terminal block includes: a connector, the connector is used to connect to the interface of the air switch, and the shape and size of the connector match the interface of the air switch; and a wire connecting tube, one end of the wire connecting tube is connected to the end of the connector away from the air switch, and the other end of the wire connecting tube is used to connect to the wire. The above-mentioned terminal block can be tightly connected to the interface of the air switch, is not easy to loosen, has a high current carrying capacity, helps to reduce the temperature rise at the connection, and avoids the occurrence of equipment burning.

[0003] Or a terminal block with announcement number CN111555055B in the prior art, which has the advantages of simple and reasonable structure and easy use. A limiter is set on the wiring tube, and the cable is passed through the limiter to achieve locking of the cable. No auxiliary equipment is required, and the cable and the terminal block can be pre-connected. After pre-positioning, crimping can be performed directly. At the same time, after the wiring sleeve and the cable are crimped, the limiter makes the cable not easy to loosen, thereby ensuring the fixation of the cable, making the contact between the cable and the terminal better, and improving its conductive performance.

[0004] The design direction of the above-mentioned prior art is mostly to assist in locking the cables, but the wire barrel part of the copper tube terminal is used to plug in the wire core. In order to ensure that the wire core can be stable and will not fall off, a pressure device must be used to compress the wire barrel to deform and squeeze the wire core after plugging in the wire core. Most of the similar improvement directions of the prior art are not suitable for the above-mentioned operations. Even if they have an auxiliary or stable plug-in and fixing effect, they cannot be implemented smoothly due to the small space of the wire barrel itself. Summary of the invention

[0005] The object of the present invention is to provide an anti-oxidation copper tube terminal to solve the problem that the wire barrel part of the copper tube terminal proposed in the above background technology is used for plugging in the wire core. In order to ensure that the wire core can be stable and will not fall off, a pressure device must be used to compress the wire barrel to deform and squeeze the wire core after plugging in the wire core. Most of the similar improvement directions in the prior art are not suitable for the above operation. Even if they have an auxiliary or stable plug-in and fixing effect, they cannot be smoothly implemented due to the small space of the wire barrel itself.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an anti-oxidation copper tube terminal, comprising a wire barrel and a connecting ear connected to a sealed end, wherein the connecting ear also includes an opening for insertion and fixing, and the wire barrel is also provided with a guiding mechanism, which guides the wire core to bend and deform and be embedded in the wire barrel through the movement of the wire core, and the guiding mechanism includes an annular body connected to the inner wall of the wire barrel at the edge, and the arc surface structure provided on the surface of the annular body is used to guide the movement of the wire core.

[0007] Furthermore, both the front and rear side surfaces of the annular body are provided with an arc surface structure, which constitutes a guide surface, and the guide surface of the inner ring and the inner wall enclosure of the sealing end of the wire barrel form a accommodating area, wherein the accommodating area is used to accommodate the deformed wire core.

[0008] As a further step, if force is continued to be applied or force is applied at a specific angle or multiple wire cores are inserted at a time, under the influence of the extrusion force, some of the wire cores will bend and deform along the inner and outer guide surfaces of the annular body, so that the annular body that originally protrudes from the inner wall of the wire barrel will cooperate with the bending of the wire core to form a locking structure.

[0009] As a further feature, a guide block coaxially distributed with the annular body is fixed to the inner wall of the sealing end of the wire barrel, and the outer surface of the guide block is also an arc-shaped structure.

[0010] As a further feature, when performing single or small number of wire core transfers, the wire core is directly inserted into the wire barrel, and the wire core will first contact the arc surface of the annular body or the guide block, wherein the common cross-section of the annular body and the guide block and the arc structure of the outer walls of the two are in a state of nearly matching each other.

[0011] As a further feature, a heat conducting member is provided in the wire barrel, wherein the heat conducting member is used to contact with the wire core after the wire barrel is compressed and deformed to improve the heat conduction efficiency.

[0012] As a further feature, the heat conducting member includes metal sheets distributed parallel to the axis of the wire barrel, and the metal sheets are distributed at equal angles with the axis of the wire barrel as the center.

[0013] Furthermore, the metal sheet is squeezed and deformed between the plurality of wire cores so that the wire cores and the wire barrel are in full contact as a whole, and a better cooling effect can be achieved through full contact and heat exchange between the metal sheet and the wire barrel.

[0014] Furthermore, the metal sheet is provided with a through groove which runs through left and right sides, and the through groove is used to enable the metal sheet to deform irregularly in sections when deforming, thereby improving the filling rate of the entire metal sheet in the gap of the wire core.

[0015] As a further feature, the heat conducting member includes a protrusion which is integrally formed or stamped on the inner wall of the wire barrel and extends toward the central axis of the wire barrel.

[0016] As a further feature, the protrusion corresponds to a groove naturally formed on the outer wall of the bobbin.

[0017] Furthermore, since a protrusion type of solution is adopted, the corresponding groove formed together with it will still retain a certain gap when the entire wire barrel is subsequently squeezed and deformed. That is to say, the groove will correspondingly penetrate into the wire cores after deformation, and the groove will not be completely covered when the heat shrink insulation glue is wrapped around the outside of the wire barrel. Therefore, the existence of the gap will also allow the heat inside the wire core to be discharged from the groove relatively efficiently.

[0018] As a further feature, the guide block is movably arranged in the bobbin, and its back side is connected to the connecting ear via a rod.

[0019] As a further feature, the connecting ear and the wire barrel are disconnected, and after the guide block is fully movable, the connecting ear is attached to the wire barrel.

[0020] As a further feature, the rod member includes a sliding rod which movably penetrates the wall of the sealing end of the thread barrel.

[0021] As a further feature, after the plug-in installation of the wire core is completed, the guide block can be moved manually or with tools through the connecting ears and the slide rod to compress the accommodating area, thereby firmly fixing the wire core therein.

[0022] As a further feature, the rod member includes a screw threadedly mounted on the wall of the sealing end of the thread barrel, and the surface of the guide block is a rough structure.

[0023] As a further feature, the rough structure of the surface of the guide block can be used to pull the wire core that has not been completely squeezed during the rotation process, so that the wire core is more evenly distributed in the wire barrel.

[0024] The beneficial effects of the present invention are: the anti-oxidation copper tube terminal redesigns the wire barrel structure, and while ensuring that the volume of the wire barrel is not large, it effectively guides the movement of the wire core and assists in limiting the position. In conjunction with the deformation of the wire barrel itself under the pressure device, the wire barrel can not only firmly fix the wire core, but also ensure the thermal and electrical conductivity effects. It is suitable for the current actual use environment and production level, and can achieve better use effects, as shown in the following content.

[0025] 1. The structural design of the annular body cooperates with the guide block, which can cooperate with the hemispherical structure at the end of the guide block to move the wire core at the center toward the area between the guide block and the annular body, and utilize the setting of the arc-shaped guide surface on the guide block and the surface of the annular body to enable the insertion of the wire core to be guided to deform and bend accordingly and enter the accommodating area, so that the wire core can be pre-positioned during insertion to avoid loosening, and there is no need to make room for inserting new wire cores by repeatedly bending the inserted wire core group, which is very convenient to use.

[0026] As a further feature, the guide block itself is arranged to be movable in the bobbin, and the compression of the accommodating area by the guide block can be utilized to achieve pre-tightening of the wire core, thereby achieving a better anti-slip effect. Furthermore, the movement mode of the guide block is arranged to be synchronously moved during the spiral rotation. On the one hand, it can be more labor-saving, and on the other hand, the distribution of the wire core in the bobbin can be more regular through the guidance of the rough surface of the guide block.

[0027] 2. The use of a raised structure in the wire barrel can not only effectively guide the displacement of the wire core and further improve the regularity of the distribution of the wire core inside the wire barrel, but also enable the protrusions themselves to be distributed in the area off-center of the wire core group when the wire barrel is compressed and deformed to complete the final fixation of the wire core, thereby providing more contact and heat dissipation area for the subsequent operation of the wire core group, and utilizing the grooves formed together with the protrusions to improve the air flow efficiency without being affected by the large number of insulating layers on the outer layer. The design and production costs are lower, but the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the internal structure of the wire spool of the present invention; Figure 3 This is a schematic diagram of the overall structure of a wire bobbin according to a second embodiment of the present invention; Figure 4 This is a schematic diagram of the metal sheet distribution structure of the present invention; Figure 5 This is a schematic diagram of the through slot structure of the present invention; Figure 6 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention; Figure 7 It is a schematic diagram of the sliding rod structure of the present invention; Figure 8 This is a schematic diagram of the initial structure of the present invention after the wire core is plugged in; Fig. 9 For the present invention Figure 8 Schematic diagram of the structure after the middle guide block moves; Fig.10 This is a schematic diagram of the screw structure of Example 4 of the present invention.

[0029] In the figure: 1, wire barrel; 2, connecting ear; 3, opening; 4, annular body; 5, guide surface; 6, guide block; 7, accommodating area; 8, metal sheet; 9, protrusion; 10, groove; 11, sliding rod; 12, screw rod; 13, through groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1: The scheme disclosed in this embodiment is mainly to solve the problems existing in the prior art, including a wire barrel 1 and a connecting ear 2 connected to the sealed end, wherein the connecting ear 2 also includes an opening 3 for insertion and fixing, and a guiding mechanism is also provided in the wire barrel 1, which guides the wire core to bend and deform and embed inside the wire barrel 1 through the movement of the wire core, and the guiding mechanism includes an annular body 4 connected to the inner wall of the wire barrel 1 at the edge, and the arc surface structure provided on the surface of the annular body 4 is used to guide the movement of the wire core, and the front and rear side surfaces of the annular body 4 are provided with an arc surface structure, which constitutes a guiding surface 5, and the guiding surface 5 of the inner ring and the inner wall of the sealed end of the wire barrel 1 form a receiving area 7, wherein The accommodating area 7 is used to accommodate the deformed wire core. After the wire core part of the cable is inserted into the wire barrel 1, its end will mostly contact the outer guide surface 5 of the annular body 4. If force is continued to be applied subsequently or force is applied at a specific angle or multiple wire cores are inserted at a time, under the influence of the extrusion force, part of the wire core will bend and deform along the inner and outer guide surfaces 5 of the annular body 4, so that the annular body 4 that originally protrudes from the inner wall of the wire barrel 1 will cooperate with the bending of the wire core to form a clamping structure. At this time, the wire core on the side is in a clamping state, and under the influence of the static friction between the several wire cores, the entire wire harness will not fall off or loosen easily, and there is no need to manually insert additional wire cores to ensure the overall connection tightness of the wire harness.

[0032] In addition, this embodiment also discloses Figure 2 The scheme shown in the figure, that is, combining the guide block 6 and the annular body 4 to jointly guide the wire core, the role of which is embodied in the following content: the inner wall of the sealed end of the wire barrel 1 is also fixed with a guide block 6 coaxially distributed with the annular body 4, and the outer surface of the guide block 6 is also an arc-shaped structure. When a single or a small number of wire cores are transferred, the wire core is directly inserted into the wire barrel 1, and the wire core will first contact the arc-shaped surface of the annular body 4 or the guide block 6, wherein the common cross-section of the annular body 4 and the guide block 6, and the arc-shaped structure of the outer walls of the two are close to each other. That is to say, no matter what the angle or number of the wire core is initially inserted, its end will bend under the dual guidance of the surfaces of the annular body 4 and the guide block 6 and enter the accommodating area 7, thereby achieving a better stable connection effect.

[0033] Embodiment 2: In this embodiment, another solution is disclosed. The technology of this solution is mainly reflected in improving the overall cooling rate of the copper tube terminal. Figure 4 As shown, a heat conductor is provided in the wire barrel 1, wherein the heat conductor is used to contact the wire core after the wire barrel 1 is compressed and deformed to improve the heat conduction efficiency. The heat conductor includes a metal sheet 8 distributed parallel to the axis of the wire barrel 1, and the metal sheet 8 is distributed at equal angles with the axis of the wire barrel 1 as the center. Under normal conditions, that is, during the plugging process of the cable cores, a number of metal sheets 8 distributed at equal angles can play the role of spacing and guiding the wire cores to be evenly distributed. In the subsequent pressing and fixing process, the metal sheet 8 is squeezed and deformed between the several wire cores to make the overall contact between the wire core and the wire barrel 1 more sufficient. Through the sufficient contact and heat exchange between the metal sheet 8 and the wire barrel 1, a better cooling effect can be achieved. A through groove 13 running through the left and right is also provided in the metal sheet 8. The through groove 13 is used to enable the metal sheet 8 to deform irregularly in sections when it is deformed, so as to improve the filling rate of the metal sheet 8 as a whole in the gap between the wire cores.

[0034] Embodiment 3: This embodiment discloses another heat conducting member. Different from the above embodiments, this heat conducting member is integral or stamped. It can be regarded as a part of the copper tube terminal instead of being fixed to the wire barrel 1 by subsequent welding or other means. This has the advantages of reducing costs on the one hand and Figure 6As shown, the heat conductor includes a protrusion 9 which is integrally or stamped on the inner wall of the wire barrel 1 and extends toward the central axis of the wire barrel 1, wherein the protrusion 9 corresponds to a groove 10 which is naturally formed on the outer wall of the wire barrel 1. Similarly, a protrusion structure with equal angle distribution is arranged in the wire barrel 1. The use of the protrusion 9 can also play the role of regularly guiding the movement of the wire core, and because the protrusion 9 is adopted, the groove 10 formed together with it will still retain a certain gap when the wire barrel 1 is squeezed and deformed as a whole. That is to say, the groove 10 will penetrate deeper into the wire cores after deformation, and the groove 10 will not be completely covered when the heat shrinkable insulation glue is wrapped on the outside of the wire barrel 1. Therefore, the existence of the gap will also make the heat inside the wire core be discharged from the groove 10 relatively efficiently.

[0035] Another solution disclosed in this embodiment is to design the guide block 6 to be movable in the wire barrel 1. After the wire core completes the plug-in guide deformation connection, the moved guide block 6 is used to enable the cable end to be stably pressed and fixed in the accommodating area 7. The content of this solution is relatively basic but low in cost and has good effect. Figure 7-Figure 9 As shown, the guide block 6 is movably arranged in the wire barrel 1, and its back side is connected to the connecting ear 2 through a rod, wherein the connecting ear 2 and the wire barrel 1 are disconnected. After the guide block 6 is fully movable, the connecting ear 2 is attached to the wire barrel 1, and the rod includes a slide bar 11, which movably penetrates the barrel wall of the sealed end of the wire barrel 1. After the plug-in installation of the wire core is completed, the guide block 6 can be moved manually or with tools through the connecting ear 2 and the slide bar 11 to compress the accommodating area 7, thereby firmly fixing the wire core therein.

[0036] Embodiment 4: This embodiment discloses the second solution, in which the sliding rod is replaced by a threaded rod, such as Fig.10 As shown, the rod member includes a screw 12 threadedly installed on the wall of the sealed end of the wire barrel 1, and the surface of the guide block 6 is a rough structure. The horizontal sliding operation is changed to thread rotation. On the one hand, it is more labor-saving. On the other hand, the rough structure of the surface of the guide block 6 can be used to pull the wire core that has not been completely squeezed during the rotation, so that its distribution in the wire barrel 1 is more even.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxidation-resistant copper tube terminal, comprising a wire barrel (1) and a connecting ear (2) connected to a sealed end, wherein the connecting ear (2) further comprises an opening (3) for insertion and fixing, characterized in that: The wire barrel (1) is also provided with a guiding mechanism, which guides the wire core to bend and deform and be embedded in the wire barrel (1) by moving the wire core, and the guiding mechanism comprises an annular body (4) whose edge is connected to the inner wall of the wire barrel (1), and an arc surface structure provided on the surface of the annular body (4) is used to guide the movement of the wire core.

2. The oxidation-resistant copper tube terminal according to claim 1, characterized in that: The front and rear side surfaces of the annular body (4) are both provided with arcuate surface structures, which constitute a guide surface (5), and the guide surface (5) of the inner ring and the inner wall of the sealed end of the wire barrel (1) form a receiving area (7), wherein the receiving area (7) is used to receive the deformed wire core.

3. The oxidation-resistant copper tube terminal according to claim 1, characterized in that: A guide block (6) coaxially distributed with the annular body (4) is also fixed to the inner wall of the sealed end of the bobbin (1); the outer surface of the guide block (6) is also an arc-shaped structure.

4. The oxidation-resistant copper tube terminal according to claim 1, characterized in that: The wire barrel (1) is provided with a heat conducting member, wherein the heat conducting member is used to contact with the wire core after the wire barrel (1) is compressed and deformed, so as to improve the heat conduction efficiency.

5. The oxidation-resistant copper tube terminal according to claim 4, characterized in that: The heat conducting member comprises metal sheets (8) distributed parallel to the axis of the wire barrel (1), and the metal sheets (8) are distributed at equal angles with the axis of the wire barrel (1) as the center.

6. The oxidation-resistant copper tube terminal according to claim 5, characterized in that: The metal sheet (8) is also provided with a through groove (13) which runs through the metal sheet (8) to enable the metal sheet (8) to deform irregularly in sections when deforming, thereby increasing the filling rate of the metal sheet (8) as a whole in the gap between the wire cores.

7. The oxidation-resistant copper tube terminal according to claim 4, characterized in that: The heat conducting member comprises a protrusion (9) formed integrally or by stamping on the inner wall of the wire barrel (1) and extending toward the central axis of the wire barrel (1), wherein corresponding to the protrusion (9) is a groove (10) formed naturally on the outer wall of the wire barrel (1).

8. The oxidation-resistant copper tube terminal according to claim 3, characterized in that: The guide block (6) is movably arranged inside the bobbin (1), and its back side is connected to the connecting ear (2) via a rod, wherein the connecting ear (2) and the bobbin (1) are disconnected, and when the guide block (6) is fully movable, the connecting ear (2) is attached to the bobbin (1).

9. The oxidation-resistant copper tube terminal according to claim 8, characterized in that: The rod member comprises a sliding rod (11) which movably penetrates the wall of the sealed end of the thread barrel (1).

10. The oxidation-resistant copper tube terminal according to claim 8, characterized in that: The rod member comprises a screw rod (12) threadedly mounted on the wall of the sealing end of the wire barrel (1), and the surface of the guide block (6) is a rough structure.

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