A wire winding structure facilitating heat dissipation

Abstract

A winding structure convenient for heat dissipation, comprising a shell, a conductive slip ring and a winding assembly; the shell is provided with a containing cavity, the containing cavity is provided with a through port and a heat dissipation hole; the conductive slip ring comprises a shaft sleeve and a shaft core, the shaft core is installed in the containing cavity and is provided with an electrode channel, the shaft core is used for external connection of a power supply, the shaft sleeve is located in the containing cavity and is provided with a rotating cavity for rotatably sleeving the shaft core, an electrode pin extending into the rotating cavity and abutting against the electrode channel is also installed on the shaft sleeve, and a heat conduction channel corresponding to the heat dissipation hole is arranged on the side wall of the rotating cavity; the winding assembly comprises a take-up reel, a volute spring and a locking part; the take-up reel is located in the containing cavity and is fixedly connected with the shaft sleeve, a data line is wound on the take-up reel, a tail end of the data line is electrically connected with the electrode pin, and a head end of the data line passes through the through port to the outside world; the volute spring is installed in the containing cavity and is connected with the take-up reel, the take-up reel drives the volute spring to deform and store energy after rotation, and the locking part is arranged in the containing cavity and is used for locking or releasing the take-up reel.

Description

Technical Field

[0001] This utility model belongs to the field of electronic equipment technology, and in particular relates to a coil reel structure that facilitates heat dissipation. Background Technology

[0002] People often carry electronic devices such as mobile phones and tablets when they go out, and they need to carry corresponding data cables for easy charging. Traditional data cables are usually long and linear, and these cables are prone to tangling and knotting when not in use, which affects the user experience.

[0003] To address this issue, products for winding data cables have emerged on the market. For example, utility model patent application number 2016210747148 mentions a slip ring spool telescopic cable reel, which mainly consists of a housing, a mounting plate, a spiral spring, a locking mechanism (locking part), and a conductive slip ring. The mounting plate is rotatably mounted inside the housing, and the spiral spring applies pressure to the mounting plate to wind up the data cable. The locking mechanism locks the mounting plate to stop it, thereby adjusting the length of the data cable. The conductive slip ring is mounted on the mounting plate, and its bushing is electrically connected to the data cable. The rotatable shaft inside the conductive slip ring passes through the housing to the outside and is connected to an external power source, thus energizing the data cable.

[0004] Therefore, this slip ring spool telescopic cable reel can solve the problem of data cable winding, adjust the extension length of the data cable, and ensure that the data cable is powered, making it quite convenient to use. However, the applicant found in actual use that because both the housing and the conductive slip ring are sealed, the heat generated by the conductive slip ring when powered on cannot be dissipated in time. This causes the bushing and core of the conductive slip ring to be in a high-temperature environment for a long time. This not only reduces the power-carrying stability of the conductive slip ring and affects the charging experience, but also easily causes the conductive slip ring to overheat and be damaged, affecting its service life. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a reel structure that facilitates heat dissipation, which can promptly dissipate the heat generated by the conductive slip ring, thereby improving the energizing stability of the conductive slip ring and extending its service life.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A heat-dissipating cable reel structure for winding data cables includes a housing, a conductive slip ring, and a winding assembly. The housing has an internal receiving cavity, and the inner wall of the cavity has an opening for connecting to the outside and heat dissipation holes. The conductive slip ring includes a bushing and a core. The core is installed within the receiving cavity and has electrode channels, and the core is used for connecting to an external power source. The bushing is located within the receiving cavity and has a rotating cavity that rotatably houses the core. Electrode pins extending into the rotating cavity and abutting the electrode channels are also mounted on the bushing. The side wall of the rotating cavity has... The heat-conducting channels are connected to the heat dissipation holes; the winding assembly includes a take-up reel, a spiral spring, and a locking part; the take-up reel is located in the receiving cavity and coaxially fixed to the bushing, the data cable is wound on the take-up reel, and the end of the data cable is electrically connected to the electrode pin on the bushing, while the beginning of the data cable passes through the opening to the outside; the spiral spring is installed in the receiving cavity and connected to the take-up reel, and the rotation of the take-up reel drives the spiral spring to deform and store energy; the locking part is located in the receiving cavity to lock or release the take-up reel.

[0010] Preferably, a linkage block is coaxially mounted on the take-up reel, the linkage block has a movable groove inside, and multiple notches are arranged circumferentially on the outer wall of the linkage block; the spiral spring is installed in the movable groove, and the inner and outer ring ends of the spiral spring are respectively fixed to the shaft core and the linkage block; the locking part includes a swing block, a locking block, and an elastic element, the swing block and the locking block are rotatably mounted on the inner wall of the receiving cavity, and the swing block has a toggle post, a stop post, and a protrusion for inserting into any of the notches, the locking block has a first notch and a second notch, and the elastic element is installed in the receiving cavity and A preload is provided to the swing block; wherein the protruding foot can disengage from the recess as the linkage block rotates, so that the swing block swings and drives the elastic element to deform and store energy; the actuating pin can contact and drive the locking block as the swing block swings, so as to adjust the rotation position of the locking block; the release and recovery of the elastic element can drive the swing block to reset, so as to drive the protruding foot to engage with any of the recesses, and cause the abutment to simultaneously abut against the side wall of the locking block to adjust the rotation position of the locking block, or cause the abutment to simultaneously insert into or disengage from the first notch / second notch, so as to lock or release the linkage block.

[0011] Preferably, the shaft core is provided with a first locking slot, the inner wall of the movable groove of the linkage block is provided with a second locking slot, the inner ring end of the spiral spring is inserted into the first locking slot, and the outer ring end of the spiral spring is inserted into the second locking slot.

[0012] Preferably, the first notch and the second notch are symmetrically arranged on the upper and lower sides of the locking block, and the left and right sides of the locking block are symmetrically provided with a first arc and a second arc; the actuating post and the abutment post can contact the first notch, the second notch, the first arc and the second arc as the swing block swings, and the abutment post is restricted from rotating by the locking block when it is inserted into the first notch or the second notch, so that the protruding foot is fixed in the recess and the linkage block is locked.

[0013] Preferably, a fixing block is provided on the inner wall of the receiving cavity, and the elastic element is a bar spring. The two ends of the bar spring are respectively fixed to the swing block and the fixing block, and the bar spring can deform and store energy as the swing block swings.

[0014] Preferably, the take-up reel includes a connecting shaft, a top baffle, and a bottom baffle. The connecting shaft is coaxially fixed to the bushing and exposes the heat-conducting groove. The top baffle and the bottom baffle are respectively disposed at both ends of the connecting shaft to form a cavity for receiving the data cable.

[0015] Preferably, the connecting shaft has a cavity inside, the top baffle and the bottom baffle cover the cavity, and the top baffle and / or the bottom baffle has an insertion hole. The bushing is located in the cavity and abuts against the top baffle and the bottom baffle, and the bushing has a plug for inserting into the insertion hole so that the bushing rotates synchronously with the take-up reel. The heat dissipation hole is located on the bottom wall of the receiving cavity, and the heat conduction channel extends through the bottom baffle to connect to the heat dissipation hole.

[0016] Preferably, the top baffle and / or the bottom baffle are further provided with positioning pins, and the bushing is further provided with positioning holes, with the insertion pin located in the sleeve cavity and inserted into the positioning holes.

[0017] Preferably, the heat-conducting channel extends through the top baffle to correspondingly connect with the receiving cavity.

[0018] Preferably, the heat dissipation holes are provided in a plurality of circular arrays, and the heat conduction channels can be connected to each of the heat dissipation holes one by one as the take-up reel rotates.

[0019] Preferably, the bottom wall of the receiving cavity is also provided with a shielding position located next to the heat dissipation hole, and when the take-up reel completely winds up the data cable, the heat conduction channel is closed by the shielding position.

[0020] Preferably, the heat dissipation hole is in a semi-circular design, and the bottom wall of the receiving cavity is provided with a shielding position located next to the heat dissipation hole. The heat conduction channel can be connected to the heat dissipation hole as the take-up reel rotates, and the heat conduction channel is closed by the shielding position when the take-up reel completely winds up the data cable.

[0021] Preferably, the sleeve cavity sidewall is provided with an inlet port for connecting to the outside, the outer wall of the bushing is provided with a mounting port for mounting the electrode pin, and the outer wall of the bushing is provided with a lead port connecting the sleeve cavity and the inlet port on the side away from the mounting port. The inlet port, the lead port and the mounting port cooperate with each other to form an arc-shaped wiring space in the sleeve cavity that avoids the bushing. The end of the data line passes through the wiring space and is electrically connected to the electrode pin.

[0022] Preferably, the conductive slip ring further includes a connecting sleeve, and the insert and the lead hole are both disposed on the connecting sleeve; the bushing is provided with a locking hole, and the connecting sleeve is provided with a buckle that can engage the locking hole, so that the connecting sleeve and the bushing can be disassembled from each other.

[0023] Preferably, the electrode channel is annular, and the inner wall of the electrode channel is covered with a conductive metal layer; the electrode pin is U-shaped and made of a metal material with elasticity and conductivity, and the head end of the electrode pin is placed at the mounting port, the U-shaped tail end of the electrode pin extends into the rotating cavity and inserts into the electrode channel to contact the metal layer; multiple electrode channels are arranged in a spaced array on the shaft core, and multiple electrode pins are arranged in a spaced array on the bushing, with each electrode pin corresponding to one of the multiple electrode channels; the data cable is composed of multiple core wires, and the multiple core wires are connected to the multiple electrode pins one by one at the mounting port; the bushing also has multiple spacers at the mounting port, and each spacer is located between two electrode pins to isolate the multiple core wires of the data cable.

[0024] (III) Beneficial Effects

[0025] This utility model provides a heat-dissipating cable reel structure. A conductive slip ring is installed within the housing cavity to connect to the take-up reel, allowing the reel to rotate within the cavity and ensuring the data cable wound on the reel can be energized. A spiral spring provides preload to the reel, allowing it to automatically return to its original position after rotation. A locking mechanism secures the reel, stopping the cable pull after a certain length, ensuring the basic functionality of the cable reel structure. Furthermore, heat dissipation holes on the side wall of the housing cavity, in conjunction with the heat-conducting channels of the conductive slip ring, allow the heat generated by the slip ring to be dissipated promptly, preventing heat accumulation within the rotating cavity and avoiding prolonged high-temperature operation of the bushing and shaft. This improves the stability of the conductive slip ring and extends its service life. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 A schematic diagram of the overall structure of this utility model is shown. Figure 1 ;

[0028] Figure 2 It shows Figure 1 The main view;

[0029] Figure 3 It shows Figure 2 AA section view;

[0030] Figure 4 It shows Figure 2 BB section view;

[0031] Figure 5 It shows Figure 2 CC section view;

[0032] Figure 6 It shows Figure 1 A bottom view;

[0033] Figure 7 It shows Figure 6 DD sectional view;

[0034] Figure 8 A schematic diagram of the overall structure of another embodiment of the present invention is shown;

[0035] Figure 9 An exploded view of the overall structure of this utility model is shown. Figure 1 ;

[0036] Figure 10 An exploded view of the overall structure of this utility model is shown. Figure 2 ;

[0037] Figure 11 An exploded view of the overall structure of this utility model is shown. Figure 3 ;

[0038] Figure 12 A partial structural schematic diagram of this utility model is shown;

[0039] Figure 13 It shows Figure 12 A sectional view;

[0040] Figure 14 An exploded view of the conductive slip ring of this invention is shown. Figure 1 ;

[0041] Figure 15 An exploded view of the conductive slip ring of this invention is shown. Figure 2 ;

[0042] Figure 16 The working principle diagram of the cable reel structure of this utility model is shown;

[0043] Figure 17 An exploded view of the locking part of this utility model is shown. Figure 1 ;

[0044] Figure 18 An exploded view of the locking part of this utility model is shown. Figure 2 ;

[0045] Figure 19 This diagram illustrates the application of the cable reel structure of this utility model.

[0046] Figure 20 It shows Figure 19 Decomposition diagram Figure 1 ;

[0047] Figure 21 It shows Figure 19 Decomposition diagram Figure 2 .

[0048] In the diagram: 1. Housing, 10. Receiving cavity, 11. Through port, 12. Heat dissipation hole, 13. Shielding position, 14. Fixing block, 2. Conductive slip ring, 21. Bushing, 210. Rotating cavity, 211. Electrode pin, 212. Heat conduction channel, 21k insert, 21d. Positioning hole, 21a. Mounting port, 21x. Lead wire port, 21t. Spacer bar, 21h. Socket, 22. Shaft core, 221. Electrode channel, 2210. Metal layer, 222. First bayonet, 23. Connecting sleeve, 23h. Snap fastener, 3. Winding assembly, 31. Take-up reel, 310. Linkage block, 3101. Movable groove, 3102. Notch, 3103. Second bayonet. 311 Connecting shaft, 3110 Cavity, 3111 Cable routing space, 312 Top baffle, 313 Bottom baffle, 314 Cable cavity, 31k Socket, 31d Positioning post, 31x Cable inlet, 32 Spiral spring, 321 Inner ring end, 322 Outer ring end, 33 Locking part, 331 Swing block, 3311 Actuating post, 3312 Abutting post, 3313 Protruding foot, 332 Locking block, 3321 First notch, 3322 Second notch, 3323 First arc opening, 3324 Second arc opening, 333 Elastic element, 4 Data cable, 5 Charger, 51 Circuit board, 52 Pin. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0050] See appendix Figure 1 -Appendix Figure 11 A heat-dissipating cable reel structure for winding a data cable 4 includes a housing 1, a conductive slip ring 2, and a cable winding assembly 3. The housing 1 has an internal receiving cavity 10, with an opening 11 for connecting to the outside and heat dissipation holes 12 on the inner wall of the cavity 10. The conductive slip ring 2 includes a bushing 21 and a core 22. The core 22 is installed inside the receiving cavity 10 and has an electrode channel 221, which is used for connecting to an external power source. The bushing 21 is located inside the receiving cavity 10 and has a rotating cavity 210 rotatably housing the core 22. Electrode leads 211 extending into the rotating cavity 210 and abutting against the electrode channel 221 are also installed on the bushing 21. The side wall of the 10 is provided with a heat-conducting channel 212 that can be connected to the heat dissipation hole 12; the winding assembly 3 includes a take-up reel 31, a spiral spring 32 and a locking part 33; the take-up reel 31 is located in the receiving cavity 10 and is coaxially fixed to the bushing 21, the data cable 4 is wound on the take-up reel 31, and the end of the data cable 4 is electrically connected to the electrode pin 211 on the bushing 21, and the beginning of the data cable 4 passes through the opening 11 to the outside; the spiral spring 32 is installed in the receiving cavity 10 and connected to the take-up reel 31, and the rotation of the take-up reel 31 drives the spiral spring 32 to deform and store energy, and the locking part 33 is provided in the receiving cavity 10 to lock or release the take-up reel 31.

[0051] Specifically, under normal circumstances, most of the data cable 4 is wound onto the take-up reel 31 and placed inside the receiving cavity 10, with the first end of the data cable 4 located at the opening 11; and the spiral spring 32 provides pre-tension to the take-up reel 31 under elastic action to limit its rotation, preventing the data cable 4 from detaching from the take-up reel 31 and falling out of the outside.

[0052] When data cable 4 is needed, pulling the first end of data cable 4 overcomes the preload provided by the spiral spring 32, thereby driving the take-up reel 31 to rotate in the forward direction, and thus pulling out the data cable 4 wound in the receiving cavity 10. During the rotation of the take-up reel 31, it will synchronously drive the bushing 21 to rotate, and the electrode pins 211 on the bushing 21 will rotate around the shaft core 22 and move along the trajectory of the electrode channel 221 to maintain contact, so as to ensure that the data cable 4 and the external power supply / terminal equipment maintain electrical connection. When the pulled-out length of data cable 4 meets the usage requirements, the take-up reel 31 can be locked by the locking part 33, and the spiral spring 32 is in a deformation and energy storage state.

[0053] During the use of data cable 4, after the conductive slip ring 2 is energized, the heat generated by the contact between the electrode channel 221 and the electrode pin 211 will be dissipated to the outside through the heat conduction channel 212 and the heat dissipation hole 12 in sequence. When the data cable 4 is finished, the take-up reel 31 is released by the locking part 33. At this time, the spiral spring 32 releases energy and restores its function, and drives the take-up reel 31 to rotate in the opposite direction, so as to wind the data cable 4 from the outside into the receiving cavity 10.

[0054] In summary, this utility model provides a conductive slip ring 2 within the housing 10 to connect the take-up reel 31, allowing the reel 31 to rotate within the housing 10 and ensuring that the data cable 4 wound on the reel 31 can be energized. A spiral spring 32 provides preload to the reel 31, enabling it to automatically return to its original position after rotation. A locking part 33 locks the reel 31, stopping the data cable 4 after it has been pulled out to a specific length, thus ensuring the basic functions of the cable winder structure. Furthermore, by providing heat dissipation holes 12 on the side wall of the housing 10 in conjunction with the heat-conducting channels 212 of the conductive slip ring 2, the heat generated by the conductive slip ring 2 during energization is promptly dissipated, preventing heat accumulation within the rotating cavity 210 and thus avoiding prolonged high-temperature operation of the bushing 21 and shaft core 22. This improves the energization stability of the conductive slip ring 2 and extends its service life.

[0055] It should be noted that, in addition to being able to charge the data cable 4 by connecting it to an external power source via a wire with a power connector, the shaft core 22 can also be used to connect to terminal devices such as computers via a wire with a USB interface to enable the data cable 4 to be used for data transmission. The head end of the data cable 4 can be equipped with a Type-C, micro, Lightning, or other interface depending on the interface model of the electronic product. Since the relevant technology is relatively conventional, this utility model does not impose any restrictions on this.

[0056] Reference Appendix Figure 1 -Appendix Figure 9 and attached Figure 19 -Appendix Figure 21This cable reel structure can be used in conjunction with products such as charger 5 and power bank (not shown in the figure). For ease of understanding, in this embodiment, the cable reel structure is installed in charger 5. Charger 5 has a circuit board 51 inside and a plug 52 that is electrically connected to circuit board 51 on the outside. The cable reel structure is fixedly installed inside charger 5, and the shaft core 22 is electrically connected to circuit board 51 through a wire. The first end of the data cable 4 passes through charger 5 to the outside. This design allows charger 5 to have a built-in data cable 4, which is convenient for unified carrying and use.

[0057] See appendix Figure 5 - Appendix Figure 18 A linkage block 310 is coaxially mounted on the take-up reel 31. The linkage block 310 has a movable groove 3101 inside and multiple notches 3102 arranged circumferentially on the outer wall of the linkage block 310. A spiral spring 32 is installed in the movable groove 3101, and the inner ring end 321 and the outer ring end 322 of the spiral spring 32 are respectively fixed to the shaft core 22 and the linkage block 310. The locking part 33 includes a swing block 331, a locking block 332 and an elastic element 333. The swing block 331 and the locking block 332 are rotatably mounted on the inner wall of the receiving cavity 10. The swing block 331 is provided with a toggle post 3311, a stop post 3312 and a protrusion 3313 for inserting into any of the notches 3102. The locking block 332 is provided with a first notch 3321 and a second notch 3322. The elastic element 333 33 is installed in the receiving cavity 10 and provides preload to the swing block 331; wherein, the protruding foot 3313 can disengage from the recess 3102 as the linkage block 310 rotates, so that the swing block 331 swings and drives the elastic element 333 to deform and store energy; the actuating column 3311 can contact and drive the locking block 332 as the swing block 331 swings, so as to adjust the rotation position of the locking block 332; the elastic element 333 releases energy and restores, so as to drive the swing block 331 to reset, so as to drive the protruding foot 3313 to engage with any recess 3102, and so that the abutment column 3312 simultaneously abuts against the side wall of the locking block 332 to adjust the rotation position of the locking block 332, or so that the abutment column 3312 simultaneously inserts into or disengages from the first notch 3321 / second notch 3322, so as to lock or release the linkage block 310.

[0058] Specifically, in the initial state, the protruding foot 3313 is located in the recess 3102, but the abutment 3312 is not inserted into the second notch 3322, so it cannot lock the linkage block 310 and restrict the rotation of the take-up reel 31. At this time, the take-up reel 31 winds up the data cable 4 into the receiving cavity 10 under the action of the spiral spring 32.

[0059] When the user pulls the data cable 4 out of the receiving cavity 10 for the first time, the take-up reel 31 and the linkage block 310 rotate synchronously in the forward direction, causing the protrusion 3313 to disengage from the recess 3102. The swing block 331 swings synchronously in the forward direction as the protrusion 3313 disengages from the recess 3102, driving the actuating column 3311 to abut against the first notch 3321 and driving the locking block 332 to adjust the rotation position of the locking block 332, thereby aligning the second notch 3322 with the abutting column 3312. In addition, when the data cable 4 is released, the spiral spring 32 drives... The take-up reel 31 rotates in the reverse direction, causing the protruding foot 3313 to re-engage in the recess 3102. During this process, the swing block 331 swings in the reverse direction synchronously with the protruding foot 3313 disengaging from the recess 3102, causing the abutment 3312 to engage in the second notch 3322. At this time, the swing block 331 is locked by the locking block 332 and cannot continue to swing in the reverse direction. Therefore, the protruding foot 3313 cannot continue to move and locks the linkage block 310, causing the take-up reel 31 to stop at its current position. At this time, the user can use the data cable 4 normally.

[0060] When the user pulls the data cable 4 for the second time, the turntable rotates forward and causes the swing block 331 to swing forward again and disengage from the second notch 3322. The actuating post 3311 then swings forward with the swing block 331 and abuts against the side wall of the locking block 332 to readjust the rotation position of the locking block 332. This causes the second notch 3322 to be offset from the abutting post 3312. Since the protruding foot 3313 cannot lock the linkage block 310 at this time, after the data cable 4 is released, the spiral spring 32 releases its energy and restores its original state, causing the take-up reel 31 to rotate in the opposite direction to complete the winding of the data cable 4. During this process, the linkage block 310 rotates in the opposite direction and causes the swing block 331 to swing in the opposite direction. This causes the abutting post 3312 to continuously abut against the side wall of the locking block 332 to adjust the rotation position of the locking block 332 until the locking block 332 rotates one full turn, causing the first notch 3321 to move closer to the abutting post 3312.

[0061] When the user pulls the data cable 4 for the third time, the actuating post 3311 abuts against the second notch 3322 and drives the locking block 332 to adjust the rotation position of the locking block 332, thereby aligning the first notch 3321 with the abutting post 3312. In addition, by releasing the data cable 4, the abutting post 3312 can be inserted into the first notch 3321 to complete the locking of the linkage block 310, thus completing the entire operation process.

[0062] In summary, by using the swing block 331, locking block 332, and elastic element 333 in conjunction with the linkage block 310, the data cable 4 can be pulled out to the required length for use, and can be wound up after use, improving operational convenience and user experience. By setting an independent movable groove 3101 on the linkage block 310 to provide a larger stretching space for the spiral spring 32, the spiral spring 32 can be enlarged in diameter and have stronger elasticity and recovery ability, ensuring that the spiral spring 31 can smoothly wind up the heavy data cable 4, improving the versatility of the cable winder structure, reducing the possibility of permanent deformation of the spiral spring 32, and thus extending the service life of the cable winder structure.

[0063] It should be noted that, in addition to the structure described above, the locking part 33 may also directly include an adjusting bolt (not shown in the figure) and a locking head (not shown in the figure). The adjusting bolt is threaded to the housing 1, and the end of the adjusting bolt extends into the receiving cavity 10. The locking head is installed on the adjusting bolt and corresponds to the notch 3102 of the linkage block 310. Tightening the adjusting bolt can drive the locking head to engage or disengage from the notch 3102, thereby locking or releasing the linkage block 310. Since the structure of the locking part 33 is diverse, the manufacturer may choose to set it, and this utility model does not impose any restrictions on this.

[0064] See appendix Figure 5 and attached Figure 12 The shaft core 22 is provided with a first bayonet 222, and the inner wall of the movable groove 3101 of the linkage block 310 is provided with a second bayonet 3103. The inner ring end 321 of the spiral spring 32 is inserted into the first bayonet 222, and the outer ring end 322 of the spiral spring 32 is inserted into the second bayonet 3103. This design eliminates the need for glue or screws to fix the spiral spring 32 to the shaft and the linkage block 310, which can improve the installation stability of the spiral spring 32 and save costs. Manufacturers can also choose other methods to install the spiral spring 32, and this utility model does not limit this.

[0065] See appendix Figure 5 - Appendix Figure 18The first notch 3321 and the second notch 3322 are symmetrically arranged on the upper and lower sides of the locking block 332, and the first arc opening 3323 and the second arc opening 3324 are symmetrically arranged on the left and right sides of the locking block 332. The actuating pin 3311 and the abutment pin 3312 can contact the first notch 3321, the second notch 3322, the first arc opening 3323 and the second arc opening 3324 respectively when the swing block 331 swings. When the abutment pin 3312 is inserted into the first notch 3321 or the second notch 3322, it is restricted from rotating by the locking block 332, so that the protruding foot 3313 is fixed in the recess 3102 and the linkage block 310 is locked. The symmetrical arrangement of the first notch 3321 and the second notch 3322 allows the locking block 332 to rotate one full turn, driving the first notch 3321 to switch to the position of the second notch 3322, thus resetting the locking block 332. This ensures that the abutment 3312 can repeatedly engage with either the first notch 3321 or the second notch 3322, guaranteeing the operational stability of the structure. The symmetrical arrangement of the first arc notch 3323 and the second arc notch 3324 allows the actuating post 3311 and the abutment 3312 to smoothly engage and drive the locking block 332 to rotate, preventing rigid contact and locking, further enhancing the operational stability of the structure.

[0066] See appendix Figure 5 - Appendix Figure 12 The inner wall of the receiving cavity 10 is provided with a fixing block 4, and the elastic element 333 is a bar spring. The two ends of the bar spring are respectively fixed to the swing block 331 and the fixing block 14, and the bar spring can deform and store energy as the swing block 331 swings. The bar spring has good elasticity and recovery ability, and is relatively inexpensive and has a longer service life. In addition, the elastic element 333 can also be a spring sheet not shown in the figure or other specific elastic components, but the installation method will also be adapted to change. For example, when using a spring sheet, the spring sheet can be fixed on the top wall of the receiving cavity 10, and then the spring sheet can be snapped into the swing block 331. Since there are various related structures, this utility model does not limit this.

[0067] See appendix Figure 7 - Appendix Figure 11 The take-up reel 31 includes a connecting shaft 311, a top baffle 312, and a bottom baffle 313. The connecting shaft 311 is coaxially fixed to the bushing 21 and exposes the heat conduction channel 212 to ensure that the heat conduction channel 212 can smoothly connect to the heat dissipation hole 12 for heat dissipation. The top baffle 312 and the bottom baffle 313 are respectively set at both ends of the connecting shaft 311 to form a cable cavity 314 for storing the data cable 4. The design of the cable cavity 314 can prevent the data cable 4 from detaching from the take-up reel 31 and spreading out in the receiving cavity 10, while also ensuring that the data cable 4 is accurately stacked during the winding process, thus improving the stability of use.

[0068] See appendix Figure 7 - Appendix Figure 15The connecting shaft 311 has a cavity 3110 inside, which is covered by a top baffle 312 and a bottom baffle 313. The top baffle 312 and / or the bottom baffle 313 are provided with insertion holes 31k. The bushing 21 is located in the cavity 3110 and abuts against the top baffle 312 and the bottom baffle 313. The bushing 21 is provided with a plug 21k for inserting into the insertion hole 31k. The heat dissipation hole 12 is provided on the bottom wall of the receiving cavity 10. The heat conduction channel 212 extends through the bottom baffle 313 to connect with the heat dissipation hole 12. The cooperation between the plug 21k and the insertion hole 31k ensures that the bushing 21 is stably installed in the cavity 3110 and that the bushing 21 can rotate synchronously with the take-up reel 31. The heat conduction channel 212 extends through the bottom baffle 313 to connect with the heat dissipation hole 12, thus ensuring that the heat generated by the conductive slip ring 2 when energized can be normally released to the outside.

[0069] See appendix Figure 7 -Appendix Figure 15 The top baffle 312 and / or the bottom baffle 313 are also provided with positioning pins 31d, and the bushing 21 is also provided with positioning holes 21d. The pin is located in the sleeve cavity 3110 and is inserted into the positioning hole 21d. The cooperation between the positioning block and the positioning hole 21d can restrict the bushing 21 from rotating in the sleeve cavity 3110, further improving the installation stability of the bushing 21 and the connecting shaft 311.

[0070] See appendix Figure 5 -Appendix Figure 12 The heat-conducting channel 212 extends through the top baffle 312 to connect with the receiving cavity 10. This design allows the heat generated by the conductive slip ring 2 when energized to be released into the receiving cavity 10 and discharged to the outside through the wiring port, thereby increasing the heat dissipation speed of the conductive slip ring 2 and further improving its energization stability and service life.

[0071] See appendix Figure 5 -Appendix Figure 12 The heat dissipation holes 12 are provided in a circular array design. The heat conduction channels 212 can be connected to each heat dissipation hole 12 one by one as the take-up reel 31 rotates. This design ensures that when the take-up reel 31 and the bushing 21 rotate synchronously, the heat conduction channels 212 remain connected to the heat dissipation holes 12, ensuring that the heat in the rotating cavity 210 can be properly dissipated to the outside.

[0072] See appendix Figure 5 -Appendix Figure 12 The bottom wall of the receiving cavity 10 is also provided with a shielding position 13 located next to the heat dissipation hole 12. When the take-up reel 31 completely winds up the data cable 4, the heat conduction channel 212 is closed by the shielding position 13. This design can prevent external dust from entering the rotating cavity 210 through the heat dissipation hole 12 and the heat conduction channel 212 when the data cable 4 is not in use, thereby contaminating the electrode channel 221 and the electrode pin 211, and further improving the power-on stability and service life of the conductive slip ring 2.

[0073] See appendix Figure 9 In another embodiment, the heat dissipation hole 12 is designed in a semi-circular shape, and the bottom wall of the receiving cavity 10 is also provided with a shielding position 13 located next to the heat dissipation hole 12. When the take-up reel 31 and the bushing 21 rotate synchronously, the heat conduction channel 212 is connected to the heat dissipation hole 12 to ensure that the heat in the rotating cavity 210 can be normally dissipated to the outside. When the take-up reel 31 completely winds up the data cable 4, the heat conduction channel 212 is closed by the shielding position 13 to prevent external dust from entering the rotating cavity 210 and contaminating the electrode channel 221 and the electrode pin 211.

[0074] It should be noted that, in addition to the designs in the two embodiments above, the heat dissipation hole 12 can also be set in other shapes. Since there are various related settings, they will not be listed one by one in this utility model and there is no limitation.

[0075] See appendix Figure 7 -Appendix Figure 13 In actual use, it was found that if the user frequently pulls the data cable 4, the end of the data cable 4 may easily detach from the electrode pin 211 on the bushing 21 and lose contact, or even cause the end of the data cable 4 to fall directly off the connecting shaft 311. To solve this problem, in this utility model, the side wall of the sleeve cavity 3110 is provided with an inlet port 31x that connects to the outside, and the outer wall of the bushing 21 is provided with an installation port 21a for installing the electrode pin 211. The outer wall of the bushing 21 is provided with a lead port 21x that connects the sleeve cavity 3110 and the inlet port 31x on the side away from the installation port 21a. The inlet port 31x, the lead port 21x and the installation port 21a cooperate with each other to form an arc-shaped wiring space 3111 in the sleeve cavity 3110 that avoids the bushing 21. The end of the data cable 4 passes through the wiring space 3111 and is electrically connected to the electrode pin 211.

[0076] Specifically, the above structural design requires the end of the data cable 4 to be bent before being electrically connected to the electrode pin 211, in order to increase the force-bearing surface at the end of the data cable 4. By increasing the friction, the end of the data cable 4 can be more stably fixed on the connecting shaft 311, thereby preventing the end of the data cable 4 from falling off the electrode pin 211 during frequent pulling of the data cable 4. This improves the tensile strength of the data cable 4 and reduces the possibility of disconnection between the data cable 4 and the conductive slip ring 2.

[0077] On the other hand, the manufacturer can also fill the wiring space 3111 with glue. The curved wiring space 3111 and the end of the data cable 4 have more contact surfaces, which allows the glue to more stably bond the end of the data cable 4 to the wiring space 3111, thereby further improving the tensile strength of the data cable 4 and further reducing the possibility of disconnection between the data cable 4 and the conductive slip ring 2.

[0078] See appendix Figure 7-Appendix Figure 15 The conductive slip ring 2 also includes a connecting sleeve 23, on which the insert 21k and the lead port 21x are both disposed; the bushing 21 is provided with a locking hole 21h, and the connecting sleeve 23 is provided with a buckle 23h that can engage with the locking hole 21h, so that the connecting sleeve 23 and the bushing 21 can be disassembled from each other; this design facilitates the independent molding of the insert 21k and the lead port 21x, so as to avoid damage to the electrode pins 211 on the bushing 21 during the processing of the insert 21k and the lead port 21x, thereby making the overall structure of the conductive slip ring 2 more rational in production and processing.

[0079] See appendix Figure 3 -Appendix Figure 7 and attached Figure 14 -Appendix Figure 15 The electrode channel 221 is annular, and its inner wall is covered with a conductive metal layer 2210. The electrode pin 211 is U-shaped and made of a flexible and conductive metal material. The head end of the electrode pin 211 is placed at the mounting port 21a, and the U-shaped tail end of the electrode pin 211 extends into the rotating cavity 210 and inserts into the electrode channel 221, contacting the metal layer 2210. Multiple electrode channels 221 are arranged in a spaced array on the shaft core 22. On the upper part, multiple electrode pins 211 are provided and are installed on the bushing 21 at intervals, and the multiple electrode pins 211 correspond one-to-one with multiple electrode channels 221; the data line 4 is composed of multiple core wires (not shown in the figure), and the multiple core wires are connected one-to-one with multiple electrode pins 211 at the mounting port 21a. The bushing 21 is also provided with multiple spacers 21t at the mounting port 21a, and each spacer 21t is located between two pairs of electrode pins 211 to isolate the multiple core wires of the data line 4.

[0080] Specifically, the electrode pins 211 are U-shaped and made of a flexible metal material, which can reduce material consumption and has good elasticity and recovery ability. This ensures that during the synchronous rotation of the take-up reel 31 and the bushing 21, the electrode pins 211 can always be placed in the electrode channel 221 and maintain contact with the metal layer 2210 under the action of elasticity, thus ensuring the stability of power supply. On the other hand, the combined use of multiple electrode pins 211 and multiple electrode channels 221 can reduce the risk of disconnection and enrich the functions of the data line 4. The design of multiple spacers 21t can isolate each core wire and avoid interference caused by contact between the core wires.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat-dissipating cable reel structure for winding up data cables, characterized in that, include: The housing has an internal cavity, and the inner wall of the cavity has an opening for connecting to the outside and a heat dissipation hole. A conductive slip ring includes a bushing and a core. The core is installed in the receiving cavity and has an electrode channel. The core is used to connect to an external power supply. The bushing is located in the receiving cavity and has a rotating cavity on which the core is rotatably fitted. The bushing is also equipped with an electrode pin that extends into the rotating cavity and abuts against the electrode channel. The side wall of the rotating cavity is provided with a heat-conducting channel that can be connected to the heat dissipation hole. A cable winding assembly includes a take-up reel, a spiral spring, and a locking part. The take-up reel is located within the receiving cavity and coaxially fixed to the bushing. The data cable is wound around the take-up reel, and the end of the data cable is electrically connected to the electrode pin on the bushing. The beginning end of the data cable passes through the opening to the outside. The spiral spring is installed within the receiving cavity and connected to the take-up reel. When the take-up reel rotates, it causes the spiral spring to deform and store energy. The locking part is located within the receiving cavity to lock or release the take-up reel.

2. The heat-dissipating coil structure according to claim 1, characterized in that, A linkage block is coaxially mounted on the take-up reel. The linkage block has a movable groove inside and multiple notches are arranged in a circular array on the outer wall of the linkage block. The spiral spring is installed in the movable groove, and the inner ring end and the outer ring end of the spiral spring are respectively fixed to the shaft core and the linkage block. The locking part includes a swing block, a locking block, and an elastic element. The swing block and the locking block are rotatably mounted on the inner wall of the receiving cavity. The swing block is provided with a push post, a stop post, and a protrusion for inserting into any of the recesses. The locking block is provided with a first notch and a second notch. The elastic element is installed in the receiving cavity and provides a preload force to the swing block. The protruding foot can disengage from the recess as the linkage block rotates, causing the swing block to swing and driving the elastic element to deform and store energy. The actuating pin can contact and drive the locking block as the swing block swings, thereby adjusting the rotational position of the locking block. The release and recovery of the elastic element can drive the swing block to reset, causing the protruding foot to engage with any of the recesses, and causing the abutment to simultaneously abut against the side wall of the locking block to adjust the rotational position of the locking block, or causing the abutment to simultaneously insert into or disengage from the first notch / second notch, thereby locking or releasing the linkage block.

3. The heat-dissipating coil structure according to claim 1, characterized in that, The take-up reel includes a connecting shaft, a top baffle, and a bottom baffle. The connecting shaft is coaxially fixed to the bushing and exposes the heat-conducting channel. The top baffle and the bottom baffle are respectively disposed at both ends of the connecting shaft to form a cavity for receiving the data cable.

4. The heat-dissipating coil structure according to claim 3, characterized in that, The connecting shaft has a cavity inside, and the top baffle and the bottom baffle cover the cavity. The top baffle and / or the bottom baffle has an insertion hole. The bushing is located in the cavity and abuts against the top baffle and the bottom baffle. The bushing has a plug for inserting into the insertion hole so that the bushing rotates synchronously with the take-up reel. The heat dissipation hole is located on the bottom wall of the receiving cavity, and the heat conduction channel extends through the bottom baffle to connect to the heat dissipation hole.

5. The heat-dissipating coil structure according to claim 4, characterized in that, The heat-conducting channel extends through the top baffle to connect to the receiving cavity.

6. A heat-dissipating coil structure according to any one of claims 3-5, characterized in that, The heat dissipation holes are provided in a plurality of circular arrays, and the heat conduction channels can be connected to each heat dissipation hole one by one as the take-up reel rotates.

7. The heat-dissipating coil structure according to claim 6, characterized in that, The bottom wall of the receiving cavity is also provided with a shielding position located next to the heat dissipation hole. When the take-up reel completely winds up the data cable, the heat conduction channel is closed by the shielding position.

8. A heat-dissipating coil structure according to any one of claims 3-5, characterized in that, The heat dissipation hole has a semi-circular design, and the bottom wall of the receiving cavity is also provided with a shielding position located next to the heat dissipation hole. The heat conduction channel can be connected to the heat dissipation hole as the take-up reel rotates, and the heat conduction channel is closed by the shielding position when the take-up reel completely winds up the data cable.

9. The heat-dissipating coil structure according to claim 4, characterized in that, The sleeve cavity sidewall is provided with an inlet port for connecting to the outside. The outer wall of the bushing is provided with a mounting port for mounting the electrode pins. The outer wall of the bushing is provided with a lead port connecting the sleeve cavity and the inlet port on the side away from the mounting port. The inlet port, the lead port and the mounting port cooperate with each other to form an arc-shaped wiring space in the sleeve cavity that avoids the bushing. The end of the data line passes through the wiring space and is electrically connected to the electrode pins.

10. A heat-dissipating cable reel structure according to claim 9, characterized in that, The electrode channel is annular, and the inner wall of the electrode channel is covered with a conductive metal layer; the electrode pin is U-shaped and made of a metal material with elasticity and conductivity, and the head end of the electrode pin is placed at the mounting port, and the U-shaped tail end of the electrode pin extends into the rotating cavity and is inserted into the electrode channel to contact the metal layer. The electrode channels are arranged in a series and spaced apart on the shaft core. The electrode pins are arranged in a series and spaced apart on the bushing, and each electrode pin corresponds to one of the electrode channels. The data line is composed of multiple core wires, and each core wire is connected to one of the electrode pins at the mounting port. The bushing is also provided with multiple spacers at the mounting port, and each spacer is located between two electrode pins to isolate the multiple core wires of the data line.

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