A wire winding device for a conductive slip ring

Abstract

The present invention relates to technical fields such as electronic device manufacturing and conductive connection. The provided wire winding device for a conductive slip ring includes a first connection terminal and a second connection terminal; a first conductor of the first connection terminal is disposed on one side of an 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 first conductor; a second conductor of the second connection terminal is disposed on an insulating outer shell, the insulating outer shell is rotatably connected to the fixed side of the first conductor of the insulating inner shell, and the second conductor is in elastic contact with the first conductor. This wire winding device for a conductive slip ring does not require soldering a PIN socket on a PCB board, nor does it require soldering a spring piece on the PIN socket to contact and conduct electricity with the plating layer on the PCB board, thereby simplifying the assembly of the device, avoiding the use of the PCB board electroplating process, improving the environmental friendliness and efficiency of manufacturing, avoiding powder accumulation short circuit caused by the spring piece contacting the PCB board plating layer, supporting large current conduction, and improving the safety and stability of the device.

Description

Technical Field

[0001] The present invention 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 electroplated 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 electroplated layer to connect and access the electrical signal on the PCB board with an electroplated layer, so as to realize wire conduction. The welding and assembly of the PIN socket are difficult and the manufacturing cost is high. The process of manufacturing 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 accumulated together, which is easy to burn out the wire winding device for a conductive slip ring. In addition, the impedance of the conductive method by contacting the electroplated layer of the PCB board with 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] In summary, 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, easy to burn out the wire winding device for a conductive slip ring, high impedance, small conductive area, easy to rise in temperature, and easy to damage the wire winding device for a conductive slip ring when conducting large current. Summary of the Invention

[0004] The purpose of the present invention is to solve at least to a certain extent the deficiencies in the prior art, and provide a wire winding device for a conductive slip ring 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 present invention includes:

[0006] A first connection terminal, the first connection terminal includes a first conductor and an insulating inner shell; the first conductor 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 first conductor;

[0007] The second connection terminal, the second connection terminal includes a second conductor and an insulating housing; the second conductor is disposed on the insulating housing, the insulating housing is rotatably connected to the fixed side of the first conductor of the insulating inner housing, and the second conductor is in elastic contact with the first conductor.

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

[0009] The conductive slip ring wire collecting device provided by the present invention includes a first connection terminal and a second connection terminal; the first connection terminal includes a first conductor and an insulating inner housing; the first conductor is disposed 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 is connected to the first conductor; the second connection terminal includes a second conductor and an insulating housing; the second conductor is disposed on the insulating housing, the insulating housing is rotatably connected to the fixed side of the first conductor of the insulating inner housing, and the second conductor is in contact with the first conductor. This conductive slip ring wire collecting device does not require soldering a PIN socket on a PCB board, nor does it require soldering a spring piece on the PIN socket to contact the plating layer on the PCB board for conducting electricity, thereby simplifying the assembly of the conductive slip ring wire collecting device, avoiding the use of PCB board electroplating process, improving the environmental protection and efficiency of manufacturing the conductive slip ring wire collecting device, avoiding powder accumulation short circuit caused by the spring piece contacting the PCB board plating layer, supporting large current conduction, and improving the safety and stability of the conductive slip ring wire collecting device. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention 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 drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 is an exploded structural schematic diagram of the conductive slip ring wire collecting device according to an embodiment of the present invention;

[0012] Figure 2 is an assembled structural schematic diagram of the conductive slip ring wire collecting device according to an embodiment of the present invention;

[0013] Figure 3 is a structural schematic diagram of five first conductors disposed on the insulating inner housing according to an embodiment of the present invention;

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

[0015] Figure 5 is a structural schematic diagram of the insulating inner housing according to an embodiment of the present invention;

[0016] Figure 6 It is a schematic structural diagram of the second conductor of the embodiment of the present invention arranged on the insulating housing;

[0017] Figure 7 It is another schematic structural diagram of the second conductor of the embodiment of the present invention arranged on the insulating housing;

[0018] Figure 8 It is a schematic structural diagram of five second conductors of the embodiment of the present invention;

[0019] Figure 9 It is a schematic structural diagram of the assembly of the conductive wire and the first connection terminal and the second connection terminal in the embodiment of the present invention.

[0020] Explanation of reference numerals:

[0021] 1. First connection terminal; 10. First conductor; 100. Clamping projection; 11. Insulating inner housing; 110. Coil limiting groove; 111. Wire winding and releasing groove; 112. Wire clamping groove; 113. Glue dispensing groove; 114. Trapezoidal wire welding hole; 115. Central through hole of the inner housing; 116. Guide rail groove;

[0022] 2. Second connection terminal; 20. Second conductor; 200. Elastic contact head; 201. External electrical signal wire connection end; 21. Insulating housing; 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 housing;

[0023] 3. Conductive wire;

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

[0025] 5. Protective sticker;

[0026] 6. Wire winding and releasing guide block;

[0027] 7. Locking screw;

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

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar methods or methods with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0030] Please refer to Figures 1-9 , an embodiment of the present invention provides a wire winding device for a conductive slip ring, which includes a first connection terminal 1 and a second connection terminal 2; the first connection terminal 1 includes a first conductor 10 and an insulating inner shell 11; the first conductor 10 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, and the conductive wire 3 is connected to the first conductor 10; the second connection terminal 2 includes a second conductor 20 and an insulating outer shell 21; the second conductor 20 is arranged on the insulating outer shell 21, and the insulating outer shell 21 is rotatably connected to the fixed side of the first conductor 10 of the insulating inner shell 11, and the second conductor 20 is in elastic contact with the first conductor 10. For example, the second conductor 20 may include an elastic contact head 200, and the elastic contact head 200 is in elastic contact with the first conductor 10.

[0031] It should be noted that the first conductor 10 may be a conductive coil or a conductive elastic sheet; the second conductor 20 may be a conductive elastic sheet or a conductive coil. When the first conductor 10 is a conductive coil, the second conductor 20 may be a conductive elastic sheet; when the first conductor 10 is a conductive elastic sheet, the second conductor 20 may be a conductive coil.

[0032] 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, the PCB board with a PIN socket and the 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 realizing the conduction of the wire. The welding and assembly of the PIN socket are difficult, and the manufacturing cost is high. The process of making an 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 conduction method through the electroplated layer of the PCB board and the spring piece is high, the conduction 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 first connection terminal 1 and a second connection terminal 2. The first conductor 10 of the first 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 first conductor 10. The second conductor 20 of the second 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 first conductor 10 of the insulating inner shell 11. The second conductor 20 is elastically in contact with the first conductor 10. The whole 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 on the PCB board, and there is no need to solder a spring piece on 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 spring piece contacting 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.

[0033] It should also be noted that in this embodiment, the conductive wire 3 is connected to the first conductor 10, and the elastic contact head 200 of the second conductor 20 contacts the first conductor 10, thereby realizing conduction. Moreover, the contact between the coil and the spring piece is the contact between rigid bodies. Compared with the contact method between the spring piece and the electroplated layer of the PCB board in the corresponding reduction, it can withstand a larger current value of large current. The insulating outer shell 21 is rotatably connected to the fixed side of the first conductor 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.

[0034] 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 first conductor 10 is provided. A plurality of clamping protrusions 100 are formed on the first conductor 10. The first conductor 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 first conductor 10 from detaching from the insulating inner shell 11 and causing the conductive connection to fail or a 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 first conductor 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 first conductor 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.

[0035] In some preferred embodiments, the conductive slip ring wire winding device further includes an upper cover 4. After the fixed side of the insulating outer shell 21 and the first conductor 10 of the insulating inner shell 11 are connected as a whole, the upper cover 4 is snap-fitted to 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 to 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 winding device.

[0036] In some preferred embodiments, the first conductor 10 is provided on one side of the insulating inner shell 11 by being integrally formed with the insulating inner shell 11, and the second conductor 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 first conductor 10 is provided on one side of the insulating inner shell 11 by being integrally formed with the insulating inner shell 11, and the second conductor 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 spring 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 winding device is simplified, the PCB board electroplating process is avoided, the environmental protection and efficiency of manufacturing the conductive slip ring wire winding device are improved, the powder accumulation short circuit caused by the spring 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 winding device are improved. Among them, the integrally formed manner can be realized through a mold. For example, the integral formation of the first conductor 10 and the insulating inner shell 11 is realized through a mold. Another example is that the integral formation of the second conductor 20 and the insulating outer shell 21 is realized through a mold.

[0037] In some preferred embodiments, the first conductor 10 is a copper coil, and the insulating inner shell 11 is a plastic inner shell; the second conductor 20 is a copper sheet, and the insulating outer shell 21 is a plastic outer shell. Further, the first conductor 10 includes at least two first conductors 10. The first conductor 10 with a larger radius among the at least two first conductors 10 surrounds the first conductor 10 with a smaller radius, and a set distance is spaced between different first conductors 10; the wire 3 includes at least two wires 3; the at least two wires 3 are correspondingly connected to at least two first conductors 10; the second conductor 20 includes at least two second conductors 20, and the elastic contact heads 200 of the at least two second conductors 20 correspondingly contact at least two first conductors 10. Preferably, the first conductor 10 includes five first conductors 10. The first conductor 10 with a larger radius among the five first conductors 10 surrounds the first conductor 10 with a smaller radius, and a set distance is spaced between different first conductors 10; the wire 3 includes five wires 3; the five wires 3 are correspondingly connected to the five first conductors 10; the second conductor 20 includes five second conductors 20, and the elastic contact heads 200 of the five second conductors 20 correspondingly contact the five first conductors 10.

[0038] It should be noted that copper material has good electrical conductivity. The contact between the body of the copper coil and the elastic contact head 200 of the second conductor 20 made of copper material 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 second conductor 20 made of copper material through a mold opening technique. In addition, the at least two wires 3 are correspondingly connected to the at least two first conductors 10, and the elastic contact heads 200 of the at least two second conductors 20 correspondingly contact the at least two first conductors 10, so that the electrical connection and winding and unwinding use of multiple wires 3 can be realized in the same conductive slip ring wire winding device. The first conductor 10 with a larger radius among the at least two first conductors 10 surrounds the first conductor 10 with a smaller radius, and a set distance is spaced between different first conductors 10, so that short circuits between the coils can be avoided.

[0039] In some further preferred embodiments, the five second conductors 20 are spaced apart from inside to outside, and a part of the elastic piece body of the second conductor 20 on the outside surrounds a part of the elastic piece body of the second conductor 20 on the inside; the width of the elastic piece body of the outermost second conductor 20 and the width of the elastic piece body of the innermost second conductor 20 are wider than the widths of the elastic piece bodies of the three second conductors 20 located between the outermost second conductor 20 and the innermost second conductor 20. It should be noted that the five second conductors 20 being spaced apart from inside to outside can correspond to five first conductors 10 spaced apart by a set distance. Since the first conductors 10 with larger radii among the five first conductors 10 surround the first conductors 10 with smaller radii, each of the second conductors 20 from outside to inside among the five second conductors 20 can be respectively connected to a single first conductor 10 among the five first conductors 10 spaced apart from outside to inside, realizing the electrical connection between each first conductor 10 and each second conductor 20. Also, since the five wire conductors 3 are correspondingly connected to the five first conductors 10, the electrical connection of each wire conductor 3 corresponding to a first conductor 10 and each first conductor 10 corresponding to a second conductor 20 can be achieved. It should be noted that in this embodiment, since the widths of the elastic contact heads 200 of the outermost second conductor 20 and the innermost second conductor 20 are both wider than the widths of the elastic contact heads 200 of the three second conductors 20 located between the outermost second conductor 20 and the innermost second conductor 20, the outermost second conductor 20 and the innermost second conductor 20 can withstand larger current values, improving the adaptability of the wire winding device of the slip ring.

[0040] In some further preferred embodiments, the widths of the elastic contact heads 200 of the outermost second conductor 20 and the innermost second conductor 20 are both wider than the widths of the elastic contact heads 200 of the three second conductors 20 located between the outermost second conductor 20 and the innermost second conductor 20. It should be noted that in this embodiment, since the widths of the elastic contact heads 200 of the outermost second conductor 20 and the innermost second conductor 20 are both wider than the widths of the elastic contact heads 200 of the three second conductors 20 located between the outermost second conductor 20 and the innermost second conductor 20, the outermost second conductor 20 and the innermost second conductor 20 can withstand larger current values (for example, currents exceeding 3 A or 5 A), improving the adaptability of the wire winding device of the slip ring.

[0041] In some preferred embodiments, the elastic contact heads 200 of the second conductor 20 include at least three elastic contact heads 200 spaced apart and distributed on the second conductor 20; the at least three elastic contact heads 200 are in pressing contact with three different positions on the circumference of the first conductor 10, so that the second conductor 20 can always maintain contact with the first conductor 10 when the first conductor 10 rotates. It should be noted that in this embodiment, the at least three elastic contact heads 200 are in pressing contact with three different positions on the circumference of the first conductor 10, so that the second conductor 20 can always maintain contact with the first conductor 10 when the first conductor 10 rotates, thereby avoiding intermittent detachment between the second conductor 20 and the first conductor 10 when the insulating inner shell 11 and the first conductor 10 rotate, resulting in poor electrical signal contact. Among them, when the at least three elastic contact heads 200 on the second conductor 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.

[0042] In some further preferred embodiments, the second conductor 20 is in the shape of an irregular hook. The second conductor 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 second conductor 20 to the external electrical signal line. It is also conducive to arranging a plurality of elastic contact heads 200 at different positions on the second conductor 20 to contact different positions of the first conductor 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 second conductor 20 extends to the wire welding step 210, thereby further improving the convenience of welding the second conductor 20 to the external electrical signal line. Further, positioning holes 211 and contact head moving holes 212 are also provided on the insulating housing 21; the positioning holes 211 are located on one side of the wire welding step 210, and the external electrical signal line connection end 201 of the second conductor 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 elastic contact heads 200 are located, and the elastic contact heads 200 can be seen through the contact head moving holes 212. The elastic contact heads 200 are in a concave shape, the concave surfaces of the elastic contact heads 200 face the contact head moving holes 212, and the convex surfaces of the elastic contact heads 200 face the first conductor 10 to squeeze and contact the first conductor 10. It should be noted that in this embodiment, the positioning holes 211 are conducive to positioning the external electrical signal line connection end 201, and the contact head moving holes 212 are conducive to the free pressing down and bouncing of the elastic contact heads 200 to squeeze and contact the first conductor 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 holes 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 holes 211 and the contact head moving holes 212, affecting the conductive connection between the second conductor 20 and the first conductor 10. Further, a guide block installation groove 213 is also provided on the inner side of the insulating housing 21, and a wire winding and unwinding guide block 6 is installed in the guide block installation groove 213. The wire winding and unwinding guide block 6 contacts the conductive wire 3 to guide the winding and unwinding of the conductive wire 3, thereby making the pulling of the conductive wire 3 smoother.

[0043] 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 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 for convenient 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 first conductor 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 first conductor 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 spaced-apart first conductors 10, the arc length of the coil body of the first conductor 10 on the outer side around the trapezoidal wire welding hole 114 is longer than the arc length of the coil body of the first conductor 10 on the inner side around the trapezoidal wire welding hole 114, thus facilitating welding and avoiding interference between the conductive wires 3.

[0044] 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.

[0045] In some preferred embodiments, the coiling 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, thus not only realizing the free rotation of the insulating inner housing 11, but also enhancing the structural stability of the coiling device of the conductive slip ring.

[0046] 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, The entire wire winding device of the conductive slip ring does not use a PCB board. The wire winding device of the conductive slip ring includes: A first connection terminal, where the first connection terminal includes a first conductor and an insulating inner shell; the first conductor is disposed 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 first conductor; A second connection terminal, where the second connection terminal includes a second conductor and an insulating outer shell; the second conductor is disposed on the insulating outer shell, and the insulating outer shell is rotatably connected to the fixed side of the first conductor of the insulating inner shell, such that the insulating inner shell rotates on the insulating outer shell, driving the winding and unwinding of the conductive wire; the second conductor is in elastic contact with the first conductor; The first conductor is a conductive coil or a conductive spring piece; the second conductor is a conductive spring piece or a conductive coil; when the first conductor is a conductive coil, the second conductor is a conductive spring piece; when the first conductor is a conductive spring piece, the second conductor is a conductive coil; The first conductor is disposed on one side of the insulating inner shell by being integrally formed with the insulating inner shell, and the second conductor and the insulating outer shell are disposed on the insulating outer shell by being integrally formed; a wire winding groove is provided on the side of the insulating inner shell where the conductive wire is installed; the conductive wire is installed in the wire winding groove and is wound in the wire winding groove or extends out of the wire winding groove when the insulating inner shell rotates.

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

3. The wire take-up device of the electrical slip ring according to claim 1, characterized in that The first conductor is a copper coil, and the insulating inner shell is a plastic inner shell; the second conductor is a copper sheet, and the insulating outer shell is a plastic outer shell.

4. The wire take-up device of the electrical slip ring according to claim 1, wherein The first conductor includes at least two first conductors, and among the at least two first conductors, the first conductor with a larger radius surrounds the first conductor with a smaller radius, and a set distance is spaced between different first conductors; the conductive wire includes at least two conductive wires; the at least two conductive wires are correspondingly connected to the at least two first conductors; the second conductor includes at least two second conductors, and the elastic contact heads of the at least two second conductors correspondingly contact the at least two first conductors.

5. The wire winding device of the conductive slip ring according to claim 1, characterized in that, The elastic contact heads of the second conductor include at least three elastic contact heads spaced apart on the second conductor; the at least three elastic contact heads are in pressing contact with three different positions on the circumference of the first conductor to keep the second conductor in contact with the first conductor all the time when the first conductor rotates.

6. The wire winding device of the conductive slip ring according to claim 1, characterized in that, A plurality of wire clamping grooves are spaced around the periphery of the wire winding groove, and the conductive wire enters or exits the wire winding groove through the wire clamping grooves.

7. The wire winding device of the conductive slip ring according to claim 2, wherein A plurality of clamping protrusions are arranged at intervals around the upper cover, and a plurality of clamping grooves are arranged at intervals around the insulating housing. When the plurality of clamping protrusions are correspondingly clamped with the plurality of clamping grooves, the upper cover is clamped with the insulating housing; after each clamping protrusion is clamped with the corresponding clamping groove, wire passing holes located between the upper cover and the insulating housing are formed on both sides of the clamping position.

8. The wire take-up device of the conductive slip ring according to claim 7, characterized in that, Further comprising: A locking screw; a positioning post is arranged in the middle of the upper cover, a middle through hole of the housing is arranged in the middle of the insulating housing, and a middle through hole of the inner housing is arranged in the middle of the insulating inner housing. After the upper cover is clamped with the insulating housing, the positioning post, the middle through hole of the housing and the middle through hole of the inner housing are aligned. The locking screw passes through the middle through hole of the housing and the middle through hole of the inner housing and is fixed to the positioning post, locking the upper cover and the insulating housing, and the insulating inner housing rotates around the locking screw as the central axis.

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