Conductive slip ring take-up device

Abstract

The utility model relates to the technical field of electronic device manufacturing, conductive connection and the like, and provides a conductive slip ring take-up device which comprises a wire connecting terminal and an elastic sheet connecting terminal. A conductive coil of the wire connecting terminal is arranged on one side of the insulating inner shell, and a conductive wire is installed on the other side of the insulating inner shell and connected with the conductive coil. The conductive elastic sheet of the elastic sheet connecting terminal is arranged on the insulating outer shell, the insulating outer shell is rotatably connected with the conductive coil fixing side of the insulating inner shell, the conductive elastic sheet comprises a coil elastic contact head, and the coil elastic contact head is in contact with the conductive coil. According to the conductive slip ring take-up device, a PIN seat does not need to be welded on the PCB, and an elastic piece does not need to be welded on the PIN seat to be in contact with an electroplated layer on the PCB for conduction, so that the assembly of the device is simplified, the use of a PCB electroplating process is avoided, the environmental protection property and the efficiency of manufacturing are improved, a powder accumulation short circuit caused by the contact of the elastic piece with the electroplated layer of the PCB is avoided, large-current conduction is supported, and the service life of the device is prolonged. And the safety and the stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical fields of electronic device manufacturing, conductive connection, etc., and particularly relates to a wire winding device for a conductive slip ring. Background Art

[0002] As an electronic device for conductive connection and wire winding management, a wire winding device for a conductive slip ring can realize the pulling out and winding of conductive connection wires such as power lines and signal lines, which is convenient for carrying and use. In the prior art, the wire winding device for a conductive slip ring mainly includes an upper cover, a reed, a ratchet, a wire, a PCB board with a PIN socket, a PCB board with an electroplating layer, and a lower cover. Among them, the reed, the ratchet and the wire are arranged on the upper cover, and the wire realizes wire winding and wire outlet through the reed and the ratchet. In the PCB board with a PIN socket, the PIN socket is welded on the PCB board and is provided with a spring piece. One end of the wire is fixed on the PIN socket, and the spring piece on the PIN socket contacts the PCB board with an electroplating layer to connect and access the electrical signal on the PCB board with an electroplating layer, so as to realize the conduction of the wire. The welding and assembly of the PIN socket are difficult and the manufacturing cost is high. The process of manufacturing the electroplating layer on the PCB board is complex and not environmentally friendly. After the spring piece on the PIN socket contacts the PCB board with an electroplating layer for a long time, the plating layer will be ground into powder and accumulated together, which is easy to burn out the wire winding device for a conductive slip ring. In addition, the impedance of the conductive mode through the contact between the electroplating layer of the PCB board and the spring piece is high, the conductive area is small, the temperature is easy to rise, and the wire winding device for a conductive slip ring is easy to be damaged when conducting large current.

[0003] To sum up, the existing wire winding device for a conductive slip ring has technical problems such as difficult assembly, high manufacturing cost, complex electroplating process, not environmentally friendly, the plating layer will be ground into powder and accumulated together, which is easy to burn out the wire winding device for a conductive slip ring, high impedance, small conductive area, easy temperature rise, and easy damage to the wire winding device for a conductive slip ring when conducting large current. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least to some extent the deficiencies in the prior art, and provide a wire winding device for a conductive slip ring, so as to simplify the assembly of the wire winding device for a conductive slip ring, reduce the manufacturing cost of the wire winding device for a conductive slip ring, reduce the heating temperature of the wire winding device for a conductive slip ring, and support safe conduction of large current.

[0005] The wire winding device for a conductive slip ring provided by the utility model includes:

[0006] A wire connection terminal, which includes a conductive coil and an insulating inner shell; the conductive coil is arranged on one side of the insulating inner shell, and a conductive wire is installed on the other side of the insulating inner shell, and the conductive wire is connected to the conductive coil;

[0007] Elastic piece connection terminal, the elastic piece connection terminal includes a conductive elastic piece and an insulating housing; the conductive elastic piece is arranged on the insulating housing, and the insulating housing is rotatably connected to the fixed side of the conductive coil of the insulating inner housing. The conductive elastic piece includes a coil elastic contact head, and the coil elastic contact head contacts the conductive coil.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0009] The wire winding device of the conductive slip ring provided by the present utility model includes a wire connection terminal and an elastic piece connection terminal; the wire connection terminal includes a conductive coil and an insulating inner housing; the conductive coil is arranged on one side of the insulating inner housing, and a conductive wire is installed on the other side of the insulating inner housing, and the conductive wire connects the conductive coil; the elastic piece connection terminal includes a conductive elastic piece and an insulating housing; the conductive elastic piece is arranged on the insulating housing, and the insulating housing is rotatably connected to the fixed side of the conductive coil of the insulating inner housing. The conductive elastic piece includes a coil elastic contact head, and the coil elastic contact head contacts the conductive coil. This wire winding device of the conductive slip ring does not require soldering a PIN socket on the PCB board, nor does it require soldering an elastic piece on the PIN socket to contact and conduct electricity with the plating layer on the PCB board, thereby simplifying the assembly of the wire winding device of the conductive slip ring, avoiding the use of the PCB board electroplating process, improving the environmental protection and efficiency of manufacturing the wire winding device of the conductive slip ring, avoiding powder accumulation short circuit caused by the elastic piece contacting the PCB board plating layer, supporting large current conduction, and improving the safety and stability of the wire winding device of the conductive slip ring. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is an exploded structural schematic diagram of the wire winding device of the conductive slip ring according to an embodiment of the present utility model;

[0012] Figure 2 It is an assembled structural schematic diagram of the wire winding device of the conductive slip ring according to an embodiment of the present utility model;

[0013] Figure 3 It is a structural schematic diagram of five conductive coils arranged on an insulating inner housing according to an embodiment of the present utility model;

[0014] Figure 4 It is a structural schematic diagram of a coil limiting groove according to an embodiment of the present utility model;

[0015] Figure 5 It is a schematic structural diagram of an insulating inner shell according to an embodiment of the present utility model;

[0016] Figure 6 It is a schematic structural diagram of a conductive elastic sheet disposed on an insulating outer shell according to an embodiment of the present utility model;

[0017] Figure 7 It is another schematic structural diagram of a conductive elastic sheet disposed on an insulating outer shell according to an embodiment of the present utility model;

[0018] Figure 8 It is a schematic structural diagram of five conductive elastic sheets according to an embodiment of the present utility model;

[0019] Figure 9 It is a schematic structural diagram of the assembly of a conductive wire and a wire connection terminal and a elastic sheet connection terminal according to an embodiment of the present utility model.

[0020] Explanation of reference numerals:

[0021] 1. Wire connection terminal; 10. Conductive coil; 100. Clamping protrusion; 11. Insulating inner shell; 110. Coil limiting groove; 111. Wire storage and release groove; 112. Wire clamping groove; 113. Glue dispensing groove; 114. Trapezoidal wire welding hole; 115. Central through hole of the inner shell; 116. Guide rail groove;

[0022] 2. Elastic sheet connection terminal; 20. Conductive elastic sheet; 200. Coil elastic contact head; 201. External electrical signal wire connection end; 21. Insulating outer shell; 210. Wire welding step; 211. Positioning hole; 212. Contact head moving hole; 213. Guide block installation groove; 214. Clamping groove; 215. Central through hole of the outer shell;

[0023] 3. Conductive wire;

[0024] 4. Upper cover; 40. Clamping protrusion; 41. Positioning post;

[0025] 5. Protective sticker;

[0026] 6. Wire storage and release guide block;

[0027] 7. Locking screw;

[0028] 8. Wire inlet and outlet hole. Detailed implementation manners

[0029] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0030] Please refer to Figures 1-9 , an embodiment of the present utility model provides a wire winding device for a conductive slip ring, which includes a wire connection terminal 1 and a spring connection terminal 2; the wire connection terminal 1 includes a conductive coil 10 and an insulating inner shell 11; the conductive coil 10 is disposed on one side of the insulating inner shell 11, and a conductive wire 3 is installed on the other side of the insulating inner shell 11, and the conductive wire 3 is connected to the conductive coil 10; the spring connection terminal 2 includes a conductive spring 20 and an insulating outer shell 21; the conductive spring 20 is disposed on the insulating outer shell 21, and the insulating outer shell 21 is rotatably connected to the fixed side of the conductive coil 10 of the insulating inner shell 11, and the conductive spring 20 includes a coil elastic contact head 200, and the coil elastic contact head 200 contacts the conductive coil 10.

[0031] It should be noted that in the prior art, two PCB boards are used in the wire winding device of a conductive slip ring, namely, a PCB board with a PIN socket and a PCB board with an electroplated layer. In the PCB board with a PIN socket, the PIN socket needs to be soldered onto the PCB board, and then a spring piece is soldered onto the PIN socket. One end of the wire is fixed to the PIN socket, and the spring piece on the PIN socket contacts the PCB board with an electroplated layer to connect and access the electrical signal on the PCB board with an electroplated layer, thereby achieving wire conduction. The soldering and assembly of the PIN socket are difficult and the manufacturing cost is high. The process of fabricating the electroplated layer on the PCB board is complex and not environmentally friendly. After the spring piece on the PIN socket contacts the PCB board with an electroplated layer for a long time, the plating layer will be ground into powder and accumulate together, which easily burns out the wire winding device of the conductive slip ring. In addition, the impedance of the method of conducting electricity through the contact between the electroplated layer of the PCB board and the spring piece is high, the conductive area is small, the temperature is easy to rise, and the wire winding device of the conductive slip ring is easily damaged when conducting large current. In this embodiment, the wire winding device of the conductive slip ring includes a wire connection terminal 1 and a spring piece connection terminal 2. The conductive coil 10 of the wire connection terminal 1 is arranged on one side of the insulating inner shell 11, and a conductive wire 3 is installed on the other side of the insulating inner shell 11. The conductive wire 3 is connected to the conductive coil 10. The conductive spring piece 20 of the spring piece connection terminal 2 is arranged on the insulating outer shell 21. The insulating outer shell 21 is rotatably connected to the fixed side of the conductive coil 10 of the insulating inner shell 11. The coil elastic contact head 200 of the conductive spring piece 20 contacts the conductive coil 10. The entire wire winding device of the conductive slip ring does not use a PCB board, and thus there is no need to solder a PIN socket onto the PCB board, and there is no need to solder a spring piece onto the PIN socket to conduct electricity by contacting the electroplated layer on the PCB board. Therefore, the assembly of the wire winding device of the conductive slip ring is simplified, the use of the PCB board electroplating process is avoided, the environmental friendliness and efficiency of manufacturing the wire winding device of the conductive slip ring are improved, the powder accumulation short circuit caused by the contact between the spring piece and the electroplated layer of the PCB board is avoided, large current conduction is supported, and the safety and stability of the wire winding device of the conductive slip ring are improved.

[0032] It should also be noted that in this embodiment, the conductive wire 3 is connected to the conductive coil 10, and the coil elastic contact head 200 of the conductive spring piece 20 contacts the conductive coil 10, thereby achieving conduction. Moreover, the contact between the coil and the spring piece is the contact between a rigid body and a rigid body, which can withstand a larger current value compared with the contact method between the spring piece and the electroplated layer of the PCB board in the relevant art. The insulating outer shell 21 is rotatably connected to the fixed side of the conductive coil 10 of the insulating inner shell 11, so that the insulating inner shell 11 can rotate on the insulating outer shell 21, driving the winding and unwinding of the conductive wire 3.

[0033] In a further preferred embodiment, a coil limiting groove 110 is formed on the housing surface of the insulating inner shell 11 on the side where the conductive coil 10 is provided. A plurality of clamping protrusions 100 are formed on the conductive coil 10. The conductive coil 10 is limited in the coil limiting groove 110 and fixed to the side wall of the coil limiting groove 110 through the plurality of clamping protrusions 100, thereby preventing the conductive coil 10 from detaching from the insulating inner shell 11 and causing conductive connection failure or short circuit. Further, a guide rail groove 116 is formed on the housing surface of the insulating inner shell 11 on the side where the conductive coil 10 is provided. The guide rail groove 116 surrounds the outside of the coil limiting groove 110; the insulating outer shell 21 is rotatably connected to the fixed side of the conductive coil 10 of the insulating inner shell 11 through the guide rail groove 116, thereby improving the smoothness of the insulating inner shell 11 when rotating on the insulating outer shell 21.

[0034] In some preferred embodiments, the conductive slip ring wire collecting device further includes an upper cover 4; after the fixed side of the conductive coil 10 of the insulating outer shell 21 and the insulating inner shell 11 are connected as a whole, the upper cover 4 is snap-fitted with the insulating outer shell 21, and the insulating inner shell 11 is assembled between the upper cover 4 and the insulating outer shell 21. It should be noted that in this embodiment, the upper cover 4 is snap-fitted with the insulating outer shell 21, and the insulating inner shell 11 is assembled between the upper cover 4 and the insulating outer shell 21, and the assembly is simple, thereby reducing the manufacturing cost of the conductive slip ring wire collecting device.

[0035] In some preferred embodiments, the conductive coil 10 is provided on one side of the insulating inner shell 11 by being integrally formed with the insulating inner shell 11, and the conductive elastic piece 20 and the insulating outer shell 21 are provided on the insulating outer shell 21 by being integrally formed. It should be noted that in this embodiment, the conductive coil 10 is provided on one side of the insulating inner shell 11 by being integrally formed with the insulating inner shell 11, and the conductive elastic piece 20 and the insulating outer shell 21 are provided on the insulating outer shell 21 by being integrally formed. The PCB board is not used, and thus there is no need to weld a PIN socket on the PCB board, and there is no need to weld a elastic piece on the PIN socket to contact and conduct electricity with the plating layer on the PCB board. Thereby, the assembly of the conductive slip ring wire collecting device is simplified, the PCB board electroplating process is avoided, the environmental protection and efficiency of manufacturing the conductive slip ring wire collecting device are improved, the powder accumulation short circuit caused by the elastic piece contacting the PCB board plating layer is avoided, large current conduction is supported, and the safety and stability of the conductive slip ring wire collecting device are improved. Among them, the integrally formed manner can be realized through a mold. For example, the integrally formed of the conductive coil 10 and the insulating inner shell 11 is realized through a mold. Another example, the integrally formed of the conductive elastic piece 20 and the insulating outer shell 21 is realized through a mold.

[0036] In some preferred embodiments, the conductive coil 10 is a copper coil, and the insulating inner shell 11 is a plastic inner shell; the conductive elastic piece 20 is a copper piece, and the insulating outer shell 21 is a plastic outer shell. Further, the conductive coil 10 includes at least two conductive coils 10. The conductive coil 10 with a larger radius among the at least two conductive coils 10 surrounds the conductive coil 10 with a smaller radius, and a set spacing is provided between different conductive coils 10; the conductive wire 3 includes at least two conductive wires 3; the at least two conductive wires 3 are correspondingly connected to at least two conductive coils 10; the conductive elastic piece 20 includes at least two conductive elastic pieces 20, and the coil elastic contact heads 200 of the at least two conductive elastic pieces 20 correspondingly contact at least two conductive coils 10. Preferably, the conductive coil 10 includes five conductive coils 10. The conductive coil 10 with a larger radius among the five conductive coils 10 surrounds the conductive coil 10 with a smaller radius, and a set spacing is provided between different conductive coils 10; the conductive wire 3 includes five conductive wires 3; the five conductive wires 3 are correspondingly connected to the five conductive coils 10; the conductive elastic piece 20 includes five conductive elastic pieces 20, and the coil elastic contact heads 200 of the five conductive elastic pieces 20 correspondingly contact the five conductive coils 10.

[0037] It should be noted that copper material has good electrical conductivity. The contact between the body of the copper coil and the coil elastic contact head 200 of the copper material conductive elastic piece 20 will not cause powder accumulation due to contact friction, resulting in a short circuit. Both the insulating inner shell 11 and the insulating outer shell 21 are made of plastic, and plastic is easy to be integrally formed with the copper coil or the copper material conductive elastic piece 20 through die-casting technology. In addition, the at least two conductive wires 3 are correspondingly connected to at least two conductive coils 10, and the coil elastic contact heads 200 of the at least two conductive elastic pieces 20 correspondingly contact at least two conductive coils 10, so that the conductive connection and winding and unwinding use of multiple conductive wires 3 can be realized in the same conductive slip ring wire winding device. The conductive coil 10 with a larger radius among the at least two conductive coils 10 surrounds the conductive coil 10 with a smaller radius, and a set spacing is provided between different conductive coils 10, so as to avoid short circuit between the coils.

[0038] In some further preferred embodiments, the five conductive elastic sheets 20 are spaced apart from inside to outside, and a part of the sheet body of the outer conductive elastic sheet 20 surrounds a part of the sheet body of the inner conductive elastic sheet 20; the width of the sheet body of the outermost conductive elastic sheet 20 and the width of the sheet body of the innermost conductive elastic sheet 20 are wider than the widths of the sheet bodies of the three conductive elastic sheets 20 located between the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20. It should be noted that the five conductive elastic sheets 20 being spaced apart from inside to outside can correspond to five conductive coils 10 spaced apart by a set distance. Since the conductive coils 10 with larger radii in the five conductive coils 10 surround the conductive coils 10 with smaller radii, each of the five conductive elastic sheets 20 from outside to inside can respectively correspond to and be connected to a single conductive coil 10 among the five conductive coils 10 spaced apart from outside to inside, realizing the conductive connection between each conductive coil 10 and each conductive elastic sheet 20. Also, since the five conductive wires 3 are correspondingly connected to the five conductive coils 10, the conductive connection where each conductive wire 3 corresponds to one conductive coil 10 and each conductive coil 10 corresponds to one conductive elastic sheet 20 can be realized. It should be noted that in this embodiment, since the widths of the sheet bodies of the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20 are both wider than the widths of the sheet bodies of the three conductive elastic sheets 20 located between the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20, the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20 can withstand larger current values, improving the adaptability of the wire take-up device of the slip ring.

[0039] In some further preferred embodiments, the widths of the coil elastic contact heads 200 of the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20 are both wider than the widths of the coil elastic contact heads 200 of the three conductive elastic sheets 20 located between the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20. It should be noted that in this embodiment, since the widths of the coil elastic contact heads 200 of the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20 are both wider than the widths of the coil elastic contact heads 200 of the three conductive elastic sheets 20 located between the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20, the outermost conductive elastic sheet 20 and the innermost conductive elastic sheet 20 can withstand larger current values (for example, currents exceeding 3 A or 5 A), improving the adaptability of the wire take-up device of the slip ring.

[0040] In some preferred embodiments, the coil elastic contact heads 200 of the conductive elastic sheet 20 include at least three coil elastic contact heads 200 that are spaced apart and distributed on the conductive elastic sheet 20; the at least three coil elastic contact heads 200 are in pressing contact with three different positions on the circumference of the conductive coil 10, so that the conductive elastic sheet 20 can always maintain contact with the conductive coil 10 when the conductive coil 10 rotates. It should be noted that in this embodiment, the at least three coil elastic contact heads 200 are in pressing contact with three different positions on the circumference of the conductive coil 10, so that the conductive elastic sheet 20 can always maintain contact with the conductive coil 10 when the conductive coil 10 rotates, thereby avoiding intermittent disconnection between the conductive elastic sheet 20 and the conductive coil 10 when the insulating inner shell 11 and the conductive coil 10 rotate, resulting in poor electrical signal contact. Among them, when the at least three coil elastic contact heads 200 on the conductive elastic sheet 20 are spaced apart and distributed, for example, they can be spaced apart and distributed in a manner of being distributed at the three vertices of a triangle.

[0041] In some further preferred embodiments, the conductive elastic sheet 20 is in an irregular hook shape. The conductive elastic sheet 20 includes an external electrical signal line connection end 201, and the external electrical signal line connection end 201 is a flat welding surface, which is conducive to welding the conductive elastic sheet 20 to the external electrical signal line. It is also conducive to arranging a plurality of coil elastic contact heads 200 at different positions on the conductive elastic sheet 20 to contact different positions of the conductive coil 10, thereby improving the reliability of contact. Further, a wire welding step 210 is provided on the insulating housing 21, and the external electrical signal line connection end 201 of the conductive elastic sheet 20 extends to the wire welding step 210, thereby further improving the convenience of welding the conductive elastic sheet 20 to the external electrical signal line. Further, a positioning hole 211 and a contact head moving hole 212 are also provided on the insulating housing 21; the positioning hole 211 is located on one side of the wire welding step 210, and the external electrical signal line connection end 201 of the conductive elastic sheet 20 extends from one side of the positioning hole 211 to the wire welding step 210; the contact head moving holes 212 are distributed on the insulating housing 21 opposite to the positions where the coil elastic contact heads 200 are located. The coil elastic contact heads 200 can be seen through the contact head moving holes 212. The coil elastic contact heads 200 are in a concave shape, the concave surface of the coil elastic contact heads 200 faces the contact head moving holes 212, and the convex surface of the coil elastic contact heads 200 faces the conductive coil 10 to squeeze and contact the conductive coil 10. It should be noted that in this embodiment, the positioning hole 211 is conducive to positioning the external electrical signal line connection end 201, and the contact head moving hole 212 is conducive to the coil elastic contact heads 200 freely pressing down and bouncing up to squeeze and contact the conductive coil 10. Further, a protective sticker 5 is attached to the outer side of the insulating housing 21, and the protective sticker 5 covers the positioning hole 211 and the contact head moving holes 212, which not only increases the aesthetic degree of the insulating housing 21, but also prevents dust from accumulating in the positioning hole 211 and the contact head moving holes 212, affecting the conductive connection between the conductive elastic sheet 20 and the conductive coil 10. Further, a guide block installation groove 213 is also provided on the inner side of the insulating housing 21, and a wire harness retracting and guiding block 6 is installed in the guide block installation groove 213. The wire harness retracting and guiding block 6 contacts the conductive wire harness 3 to guide the retraction and extension of the conductive wire harness 3, thereby making the retraction and pulling of the conductive wire harness 3 smoother.

[0042] In some preferred embodiments, a wire winding groove 111 is provided on the side of the insulating inner shell 11 where the conductive wire 3 is installed; the conductive wire 3 is installed in the wire winding groove 111 and is wound in or extends out of the wire winding groove 111 when the insulating inner shell 11 rotates. Further, a plurality of wire clamping grooves 112 are provided at intervals around the wire winding groove 111, and the conductive wire 3 enters or extends out of the wire winding groove 111 through the wire clamping grooves 112. It should be noted that in this embodiment, the conductive wire 3 can be wound in the wire winding groove 111 or can extend out of the wire winding groove 111 when pulled by an external force. The plurality of wire clamping grooves 112 provided at intervals around the wire winding groove 111 can limit and guide the conductive wire 3 during the winding and unwinding process of the conductive wire 3, making it easy for the conductive wire 3 to enter and exit the wire winding groove 111. Further, a glue dispensing groove 113 is also provided on the insulating inner shell 11, and the glue dispensing groove 113 passes through the wire clamping grooves 112 and is distributed inside and outside the wire winding groove 111, facilitating glue dispensing. Further, a trapezoidal wire welding hole 114 is also provided on the insulating inner shell 11. When a part of the coil body of the conductive coil 10 on the insulating inner shell 11 passes by one side of the trapezoidal wire welding hole 114, the conductive wire 3 passes through the trapezoidal wire welding hole 114 and is welded to the conductive coil 10; the aperture of the trapezoidal wire welding hole 114 gradually increases from the center of the insulating inner shell 11 to the periphery. When there are at least two conductive coils 10 spaced around, the arc length of the coil body of the conductive coil 10 on the outer side at one side of the trapezoidal wire welding hole 114 is longer than the arc length of the coil body of the conductive coil 10 on the inner side at one side of the trapezoidal wire welding hole 114, thus facilitating welding and avoiding interference between the conductive wires 3.

[0043] In some preferred embodiments, a plurality of clamping protrusions 40 are provided at intervals around the upper cover 4, and a plurality of clamping grooves 214 are provided at intervals around the insulating outer shell 21. When the plurality of clamping protrusions 40 are correspondingly clamped with the plurality of clamping grooves 214, the upper cover 4 is clamped with the insulating outer shell 21; after each clamping protrusion 40 is clamped with the corresponding clamping groove 214, wire passing holes 8 located between the upper cover 4 and the insulating outer shell 21 are formed on both sides of the clamping position. It should be noted that in this embodiment, when the plurality of clamping protrusions 40 are correspondingly clamped with the plurality of clamping grooves 214, the upper cover 4 is clamped with the insulating outer shell 21. After each clamping protrusion 40 is clamped with the corresponding clamping groove 214, wire passing holes 8 located between the upper cover 4 and the insulating outer shell 21 are formed on both sides of the clamping position, thereby realizing the rapid assembly of the upper cover 4 and the insulating outer shell 21, forming the wire passing holes 8, improving the assembly efficiency, and reducing the manufacturing cost of the conductive slip ring wire winding device.

[0044] In some preferred embodiments, the wire winding device of the conductive slip ring further includes: a locking screw 7; a positioning post 41 is provided in the middle of the upper cover 4, a through hole 215 is provided in the middle of the insulating housing 21, and a through hole 115 is provided in the middle of the insulating inner housing 11. After the upper cover 4 is snap-fitted with the insulating housing 21, the positioning post 41, the through hole 215 in the middle of the housing, and the through hole 115 in the middle of the inner housing are aligned. The locking screw 7 passes through the through hole 215 in the middle of the housing and the through hole 115 in the middle of the inner housing and is fixed to the positioning post 41 to lock the upper cover 4 and the insulating housing 21. The insulating inner housing 11 rotates around the locking screw 7 as the axis. It should be noted that in this embodiment, after the upper cover 4 is snap-fitted with the insulating housing 21, the positioning post 41, the through hole 215 in the middle of the housing, and the through hole 115 in the middle of the inner housing are aligned. The locking screw 7 passes through the through hole 215 in the middle of the housing and the through hole 115 in the middle of the inner housing and is fixed to the positioning post 41 to lock the upper cover 4 and the insulating housing 21. The insulating inner housing 11 rotates around the locking screw 7 as the axis, thereby not only realizing the free rotation of the insulating inner housing 11, but also enhancing the structural stability of the wire winding device of the conductive slip ring.

[0045] The above is the description of the technical solution provided by the present invention. For those skilled in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A wire winding device for a conductive slip ring, characterized in that, Including: A wire connection terminal, the wire connection terminal includes a conductive coil and an insulating inner shell; the conductive coil is arranged on one side of the insulating inner shell, a conductive wire is installed on the other side of the insulating inner shell, and the conductive wire is connected to the conductive coil; A shrapnel connection terminal, the shrapnel connection terminal includes a conductive shrapnel and an insulating outer shell; the conductive shrapnel is arranged on the insulating outer shell, the insulating outer shell is rotatably connected to the fixed side of the conductive coil of the insulating inner shell, and the conductive shrapnel includes a coil elastic contact head which contacts the conductive coil.

2. The wire winding device of the electrical slip ring according to claim 1, wherein It further includes an upper cover; after the insulating outer shell and the fixed side of the conductive coil of the insulating inner shell are connected as a whole, the upper cover is snap-connected to the insulating outer shell, and the insulating inner shell is assembled between the upper cover and the insulating outer shell.

3. The wire winding device of the conductive slip ring according to claim 1, characterized in that The conductive coil is arranged on one side of the insulating inner shell by integrally forming with the insulating inner shell, and the conductive shrapnel and the insulating outer shell are arranged on the insulating outer shell by integrally forming.

4. The wire winding device of the conductive slip ring according to claim 3, wherein The conductive coil is a copper coil, and the insulating inner shell is a plastic inner shell; the conductive shrapnel is a copper sheet, and the insulating outer shell is a plastic outer shell.

5. The wire winding device of the electrical slip ring according to claim 3, characterized in that, The conductive coil includes at least two conductive coils, the conductive coil with a larger radius in the at least two conductive coils surrounds the conductive coil with a smaller radius, and a set distance is spaced between different conductive coils; the conductive wire includes at least two conductive wires; the at least two conductive wires correspondingly connect the at least two conductive coils; the conductive shrapnel includes at least two conductive shrapnels, and the coil elastic contact heads of the at least two conductive shrapnels correspondingly contact the at least two conductive coils.

6. The wire winding device of the conductive slip ring according to claim 3, characterized in that, The coil elastic contact head of the conductive shrapnel includes at least three coil elastic contact heads spaced apart on the conductive shrapnel; the at least three coil elastic contact heads are in pressing contact with three different positions on the circumference of the conductive coil, so that the conductive shrapnel always maintains contact with the conductive coil when the conductive coil rotates.

7. The wire winding device of the conductive slip ring according to claim 3, characterized in that, A wire winding and unwinding groove is arranged on the wire installation side of the insulating inner shell; the conductive wire is installed in the wire winding and unwinding groove and is wound in the wire winding and unwinding groove or extends out of the wire winding and unwinding groove when the insulating inner shell rotates.

8. The wire winding device of the electrical slip ring according to claim 7, characterized in that, A plurality of wire clamping grooves are spaced around the wire winding and unwinding groove, and the conductive wire enters or exits the wire winding and unwinding groove through the wire clamping grooves.

9. The wire winding device of the conductive slip ring according to claim 2, characterized in that, A plurality of snap-fit protrusions are spaced around the upper cover, and a plurality of snap-fit grooves are spaced around the insulating outer shell. When the plurality of snap-fit protrusions correspondingly snap-fit the plurality of snap-fit grooves, the upper cover is snap-connected to the insulating outer shell; after each snap-fit protrusion is snap-connected to the corresponding snap-fit groove, wire inlet and outlet holes located between the upper cover and the insulating outer shell are formed on both sides of the snap-fit position.

10. The wire winding device of the conductive slip ring according to claim 9, characterized in that, It further includes: Locking screw; a positioning post is provided in the middle of the upper cover, a through hole in the middle of the housing is provided in the middle of the insulating housing, a through hole in the middle of the inner housing is provided in the middle of the insulating inner housing. After the upper cover is snap-fitted with the insulating housing, the positioning post, the through hole in the middle of the housing and the through hole in the middle of the inner housing are aligned. The locking screw passes through the through hole in the middle of the housing and the through hole in the middle of the inner housing and is fixed to the positioning post to lock the upper cover and the insulating housing. The insulating inner housing rotates around the locking screw as the central axis.

Images