Three-core wire storage device and electric appliance having the same

Abstract

The application discloses a three-core wire storage device and an electrical equipment with the same. The three-core wire comprises a first core wire, a second core wire and a third core wire. The storage device comprises a shell, a winding wheel frame rotatably arranged in a receiving cavity for winding the three-core wire, and a conductive column fixedly connected with the shell and coaxially arranged with a rotation axis of the winding wheel frame. One end of the conductive column is adapted to be electrically connected with the third core wire in the receiving cavity, and the other end of the conductive column extends out of the receiving cavity through a third through hole. According to the three-core wire storage device, the conductive column is arranged at the position of the winding wheel frame axis and fixedly connected with the shell, and is used for leading out the third core wire. Therefore, the wiring leading-out structure of the third core wire can be simplified, the production cost of the three-core wire storage device is reduced, and the reliability of the electrical connection of the third core wire can be further improved.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a three-core wire storage device and an electrical appliance having the same. Background Technology

[0002] Cable reels have a wide range of applications. They are designed to make it convenient to use electrical wires when needed. The wire can be pulled out directly from the reel, and the length to be pulled out can be selected according to the actual distance. Generally, cable reels are equipped with a spring that drives the wire to retract automatically.

[0003] The reel in the related technology has a complex structure, high cost, and cannot meet the grounding requirements. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a three-core wire storage device, which has a relatively simple structure, low cost, and can reliably connect to the ground wire.

[0005] The present invention also proposes an electrical device having the above-mentioned three-core wire storage device.

[0006] According to a first aspect of the present invention, a three-core wire storage device is provided, wherein the three-core wire includes a first core wire, a second core wire, and a third core wire, characterized in that the storage device comprises: a housing, wherein a receiving cavity is formed within the housing, and a wire inlet / outlet communicating with the receiving cavity is formed on the housing, and a first through hole, a second through hole, and a third through hole are also formed on the housing and spaced apart from the receiving cavity; a winding wheel frame, wherein the winding wheel frame is rotatably disposed within the receiving cavity for winding the three-core wire; and a first conductive group, wherein the first conductive group includes a first connecting portion and a first connecting portion, the first connecting portion being fixed to the winding wheel frame and adapted to connect with the first core wire located within the receiving cavity, and the first connecting portion being fixed to the housing and connected with the first core wire. The first connecting part is electrically connected, and a portion of the first wiring part extends out of the receiving cavity through the first through hole; the second conductive group includes a second connecting part and a second wiring part, the second connecting part is fixed to the winding wheel frame and adapted to be connected to the second core wire located in the receiving cavity, the second wiring part is fixed to the housing and electrically connected to the second connecting part, and a portion of the second wiring part extends out of the receiving cavity through the second through hole; the conductive post is fixedly connected to the housing and coaxially arranged with the rotation axis of the winding wheel frame, one end of the conductive post is adapted to be electrically connected to the third core wire located in the receiving cavity, and the other end of the conductive post extends out of the receiving cavity through the third through hole.

[0007] According to the three-core wire storage device of the present invention, a conductive post located at the axis of the winding wheel frame and fixedly connected to the housing is provided for leading out the third core wire of the three-core wire. This simplifies the wiring and lead-out structure of the third core wire, reduces the production cost of the three-core wire storage device, and further improves the reliability of the wiring and electrical connection of the third core wire, making it safe and reliable. For example, the third core wire can be a ground wire, which can achieve reliable grounding.

[0008] In some embodiments, the three-core wire storage device further includes: a coil spring, the inner radial end of which is fixed and electrically connected to the conductive post, and the outer end of which is electrically connected to the third core wire.

[0009] In some embodiments, the radially inner end of the coil spring is wound around the outer surface of the conductive post, and a fixing hole is formed at the radially inner end of the coil spring. The coil spring is fixed to the conductive post by a fastener passing through the fixing hole.

[0010] In some embodiments, the winding reel frame includes: a first turntable and a second turntable disposed perpendicular to the rotation axis of the winding reel frame, the first turntable having an annular plate extending toward the second turntable, the annular plate being formed as an annulus extending around the rotation axis, the annular plate having a wire inlet extending radially through the annular plate, the three-core wire being adapted to be wound radially outside the annular plate and having one end passing through the wire inlet and extending into the annular plate.

[0011] In some embodiments, a receiving groove is formed on the side surface of the second turntable opposite to the first turntable, the coil spring is disposed in the receiving groove, a through hole is formed on the second turntable along the axial direction, and a plug-in portion is provided at the radially outer end of the coil spring, the plug-in portion extends through the through hole into the inner space of the ring plate and is connected to the third core wire.

[0012] In some embodiments, the first connecting portion and the second connecting portion are both disposed on the first turntable and located on the side of the first turntable away from the second turntable. A first connecting piece is formed on the first connecting portion, and a second connecting piece is formed on the second connecting portion. A first through hole and a second through hole are formed on the first turntable, which are connected along the axial direction. The first connecting piece passes through the first through hole and extends into the inner space of the ring plate to connect with the first core wire. The second connecting piece passes through the second through hole and extends into the inner space of the ring plate to connect with the second core wire.

[0013] In some embodiments, a wire-passing groove is formed on the first turntable, the wire-passing groove is located radially inside the ring plate, the distance between the wire-passing groove and the rotation axis is greater than the distance between the first through hole and the rotation axis and the distance between the second through hole and the rotation axis, and the third core wire is disposed in the wire-passing groove.

[0014] In some embodiments, the two ends of the coil spring are fixed to the housing and the winding wheel frame respectively for driving the winding wheel frame to reset.

[0015] In some embodiments, both the first connecting portion and the first wiring portion are formed as annular rings extending around the rotation axis of the winding reel carrier, and the first connecting portion and the first wiring portion are opposite each other in the direction of the rotation axis. A first spring tab extending toward the other is formed on one of the first connecting portion and the first wiring portion, and the free end of the first spring tab abuts against the other of the first connecting portion and the first wiring portion; and / or

[0016] Both the second connecting portion and the second wiring portion are formed as annular rings extending around the rotation axis of the winding wheel frame, and the second connecting portion and the second wiring portion are opposite each other in the direction of the rotation axis. A second spring piece extending toward the other is formed on one of the second connecting portion and the second wiring portion, and the free end of the second spring piece abuts against the other of the second connecting portion and the second wiring portion.

[0017] In some embodiments, both the first and second springs include a plurality of springs spaced apart around the rotation axis.

[0018] In some embodiments, a first terminal piece extending axially is formed on the first terminal portion, the first terminal piece extending out of the receiving cavity through the first through hole; a second terminal piece extending axially is formed on the second terminal portion, the second terminal piece extending out of the receiving cavity through the second through hole.

[0019] In some embodiments, the inner surface of the housing is provided with an engagement portion, and the winding wheel frame is provided with a locking protrusion that is rotatable relative to the winding wheel frame. The locking protrusion is adapted to engage with the engagement portion. When the locking protrusion is engaged with the engagement portion, the winding wheel frame is fixed to the housing by the locking protrusion. When the locking protrusion is not engaged with the engagement portion, the winding wheel frame is rotatable about its rotation axis.

[0020] An electrical device according to a second aspect of the present invention includes a three-core wire storage device according to a first aspect of the present invention.

[0021] According to the electrical equipment of the present invention, by providing the three-core wire storage device of the first aspect described above, the overall performance of the electrical equipment is improved.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is an exploded view of a three-core wire storage device according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram showing the first and second wiring terminals mounted on the top cover;

[0025] Figure 3 yes Figure 1 A schematic diagram showing the first and second connecting parts mounted on the first disk body;

[0026] Figure 4 yes Figure 1 A schematic diagram of the first disk body from another angle;

[0027] Figure 5 yes Figure 1 A schematic diagram of the assembly of the second disk, conductive post, and coil spring shown;

[0028] Figure 6 yes Figure 5 Another angle schematic diagram of the assembly of the second disc, conductive post, and coil spring shown;

[0029] Figure 7 yes Figure 5 A schematic diagram of the assembly of the second disk, conductive post, coil spring, and locking protrusion shown in the figure;

[0030] Figure 8 yes Figure 1 A schematic diagram of the housing shown;

[0031] Figure 9 yes Figure 1 An exploded view of the casing shown;

[0032] Figure 10 yes Figure 1 Exploded view of the first conductive group shown;

[0033] Figure 11 yes Figure 1 An exploded view of the second conductive group shown in the figure;

[0034] Figure 12 yes Figure 1The exploded view of the winding wheel frame and conductive post shown.

[0035] Figure label:

[0036] Storage device 100,

[0037] 10 housing, 101 receiving cavity, 102 line inlet / outlet.

[0038] Box body 11, engaging part 111,

[0039] Top cover 12, first perforation 121, second perforation 122, third perforation 123, first locking hole 124, second locking hole 125.

[0040] Second screw 13,

[0041] 20 winding reel carrier

[0042] First turntable 21, first through hole 2101, second through hole 2102, first limiting groove 2103, second limiting groove 2104

[0043] Cable guide 2105, card slot 2106, third card hole 2107, fourth card hole 2108.

[0044] Ring plate 211, line inlet 2111, first baffle 212, second baffle 213, first locking post 214, second locking post 215.

[0045] Second turntable 22, receiving groove 2201, annular rib 221, through hole 2202.

[0046] 23, 24, 25, first screw

[0047] First conductive group 30.

[0048] First connecting part 31, first connecting piece 311, first spring piece 312, first connecting ring 313, third snap-fit ​​piece 314.

[0049] First wiring section 32, first wiring piece 321, first snap-fit ​​piece 322, first ring piece 323.

[0050] Second conductive group 40,

[0051] Second connecting part 41, second connecting piece 411, second spring piece 412, second connecting ring 413, fourth locking piece 414.

[0052] Second wiring section 42, second wiring piece 421, second snap-fit ​​piece 422, second ring piece 423.

[0053] Conductive post 50, post body 51, conductive screw 52.

[0054] Spring 60, fixing hole 61, insertion part 62

[0055] Fastener 70. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0057] The following is for reference. Figures 1-12 A three-core wire storage device 100 according to a first aspect embodiment of the present invention is described, wherein the three-core wire has three core wires, namely a live wire, a neutral wire, and a ground wire. The three-core wire of this embodiment includes a first core wire, a second core wire, and a third core wire, wherein, preferably, the third core wire is a ground wire, and one of the first core wire and the second core wire is a live wire and the other is a neutral wire.

[0058] like Figure 1 As shown, a three-core wire storage device 100 according to a first aspect embodiment of the present invention is used to store a three-core wire. The three-core wire storage device 100 includes: a housing 10, a winding wheel frame 20, a first conductive group 30, a second conductive group 40, and a conductive post 50.

[0059] Specifically, a receiving cavity 101 is formed inside the housing 10, which can be used to store a three-core wire. A wire inlet / outlet 102 communicating with the receiving cavity 101 is formed on the housing 10. The pull-out end of the three-core wire stored in the receiving cavity 101 can extend out of the receiving cavity 101 from the wire inlet / outlet 102. A first through hole 121, a second through hole 122, and a third through hole 123 are also formed on the housing 10. The first through hole 121, the second through hole 122, and the third through hole 123 communicate with the receiving cavity 101, and the first through hole 121, the second through hole 122, and the third through hole 123 are spaced apart on the housing 10.

[0060] The winding wheel 20 is rotatably disposed in the receiving cavity 101 for winding the three-core wire; when the winding wheel 20 rotates, the three-core wire can be wound onto the winding wheel 20, or the three-core wire wound onto the winding wheel 20 can be released.

[0061] The first conductive group 30 includes a first connecting part 31 and a first wiring part 32. The first connecting part 31 is fixed on the winding wheel frame 20 and is adapted to be connected to the first core wire located in the receiving cavity 101. The first wiring part 32 is fixed on the housing 10 and is electrically connected to the first connecting part 31. A portion of the first wiring part 32 extends out of the receiving cavity 101 through the first through hole 121. In this way, the first core wire of the three-core wire housed in the receiving cavity 101 can extend out of the receiving cavity 101 in sequence through the first connecting part 31 and the first wiring part 32 to facilitate electrical connection with the first core wire of the three-core wire that needs to be connected externally.

[0062] The second conductive assembly 40 includes a second connecting part 41 and a second wiring part 42. The second connecting part 41 is fixed on the winding wheel frame 20 and is adapted to be connected to the second core wire located in the receiving cavity 101. The second wiring part 42 is fixed on the housing 10 and is electrically connected to the second connecting part 41. A portion of the second wiring part 42 extends out of the receiving cavity 101 through the second through hole 122. In this way, the second core wire of the three-core wire housed in the receiving cavity 101 can extend out of the receiving cavity 101 in sequence through the second connecting part 41 and the second wiring part 42 to facilitate electrical connection with the second core wire of the three-core wire that needs to be connected externally.

[0063] The conductive post 50 is coaxially arranged with the rotation axis of the winding wheel frame 20, and the conductive post 50 is fixedly connected to the housing 10. One end of the conductive post 50 is adapted to be electrically connected to the third core wire located in the receiving cavity 101, and the other end of the conductive post 50 extends out of the receiving cavity 101 through the third through hole 123. In this way, the third core wire of the three-core wire housed in the receiving cavity 101 can extend out of the receiving cavity 101 through the conductive post 50, so as to facilitate electrical connection with the third core wire of the three-core wire that needs to be connected externally. Since the conductive post 50 is located at the rotation axis of the winding wheel frame 20 and can be fixedly connected to the housing 10, it avoids the need to set up a third conductive assembly such as the first conductive group 30 and the second conductive group 40 for the lead-out of the third core wire, simplifies the lead-out connection structure of the third core wire, reduces costs, and further ensures the electrical connection reliability of the lead-out structure of the third core wire by leading out through the fixed conductive post 50, making it safer and more reliable.

[0064] According to an embodiment of the present invention, the three-core wire storage device 100 provides a conductive post 50 located at the axis of the winding wheel frame 20 and fixedly connected to the housing 10 for leading out the third core wire of the three-core wire. This simplifies the wiring and lead-out structure of the third core wire, reduces the production cost of the three-core wire storage device 100, and further improves the reliability of the wiring and electrical connection of the third core wire, making it safe and reliable. For example, the third core wire can be a ground wire, which can achieve reliable grounding.

[0065] In one embodiment of the present invention, the three-core wire storage device 100 may further include: a coil spring 60, which is coaxially arranged with the conductive post 50. The radial inner end of the coil spring 60 is fixed and electrically connected to the conductive post 50, and the outer end of the coil spring 60 is fixed and electrically connected to the third core wire. When the winding wheel frame 20 rotates, the third core wire rotates with the winding wheel frame 20, and the first core wire drives the radial outer end of the coil spring 60 to rotate. At the same time, the radial inner end of the coil spring 60 remains fixed. In this way, the coil spring 60 absorbs the kinetic energy transmitted by the rotation of the third core wire through deformation, thereby fixing the inner end of the coil spring 60, which facilitates fixed connection with the conductive post 50.

[0066] like Figure 1 As shown, the conductive post 50 may include: a post body 51 and a conductive screw 52. The post body 51 is formed as a column extending along the rotation axis of the winding wheel carrier 20, and one end of the post body 51 (e.g. Figure 1 The lower end of the column 51 shown is fixed to the bottom wall of the housing 11 of the shell 10. For example, a positioning post is provided on the bottom wall of the housing 11, and a positioning hole is formed on the conductive post 50. The conductive post 50 is inserted into the positioning post through the positioning hole, thereby fixing its relative position with the shell 10. The other end of the column 51 (for example) Figure 1 The upper end of the column 51 shown passes through the central hole at the center of the winding wheel carrier 20, and the end of the column 51 facing the upper cover 12 of the housing 10 ( Figure 1 The upper end of the column 51 shown can be formed with a threaded hole extending toward the bottom wall of the housing 11. The threaded shank of the conductive screw 52 passes through the third through hole 123 on the upper cover 12 and is threadedly connected to the threaded hole on the column 51. The screw head of the conductive screw 52 is located outside the upper cover 12 of the housing 10, that is, the screw head of the conductive screw 52 is exposed outside the housing 10. Alternatively, after the conductive screw 52 is threadedly connected and fixed to the column 51, the screw head of the conductive screw 52 extends into the third through hole 123 of the upper cover 12 of the housing 10, and at least part of the screw head of the conductive screw 52 is exposed outside the upper cover 12 of the housing 10, that is, the screw head of the conductive screw 52 is exposed outside the housing 10.

[0067] Thus, after the three-core wire storage device 100 is assembled, an exposed conductive screw 52 can be seen on the side where the upper cover 12 of the housing 10 is located. When another external three-core wire is connected, the three-core wire that comes with the three-core wire storage device 100 can be effectively connected to the external three-core wire, thereby achieving effective grounding.

[0068] In one embodiment, the three-core wire storage device 100 may further include a coil spring 60, the two ends of which are fixed to the housing 10 and the winding wheel frame 20 respectively. The coil spring 60 can be used to drive the winding wheel frame 20 to reset. When the coil spring 60 drives the winding wheel frame 20 to reset, the three-core wire located outside the storage device 100 can be collected from the wire inlet / outlet 102 position and stored in the storage device 100 by driving the winding wheel frame 20 to rotate.

[0069] It can be understood that the coil spring 60 used to drive the winding wheel frame 20 to reset and the coil spring 60 used to electrically connect the conductive post 50 to the third core wire can be the same coil spring 60, or they can be two coil springs 60 that are set independently.

[0070] In one embodiment, such as Figure 5 and Figure 6 As shown, the radially inner end of the coil spring 60 can be wound around the outer surface of the conductive post 50. A fixing hole 61 is formed at the radially inner end of the coil spring 60, and a fixing hole 61 is also formed on the outer peripheral wall of the conductive post 50. The coil spring 60 is fixed to the conductive post 50 through the fixing hole 61 by a fastener 70. In this embodiment, the radially inner end of the coil spring 60 is fixedly connected to the conductive post 50 by the fastener 70, which can further improve the reliability of the mechanical and electrical connection between the coil spring 60 and the conductive post 50.

[0071] In one embodiment, such as Figure 1 As shown, the winding wheel frame 20 may include: a first turntable 21 and a second turntable 22, wherein the first turntable 21 and the second turntable 22 are both arranged perpendicular to the rotation axis of the winding wheel frame 20. A ring plate 211 may be formed on the first turntable 21. The ring plate 211 is formed on the side surface of the first turntable 21 facing the second turntable 22 and extends towards the second turntable 22. The ring plate 211 may be formed as an annulus extending around the rotation axis. A wire inlet 2111 may be formed on the ring plate 211, which penetrates the ring plate 211 in the radial direction (i.e., the thickness direction of the ring plate 211). A three-core wire is adapted to be wound on the radially outer side of the ring plate 211, and one end of the three-core wire (the three-core wire is wound around the inner end of the winding wheel frame 20) passes through the wire inlet 2111 and extends into the ring plate 211.

[0072] In this embodiment, a ring plate 211 is provided between the first turntable 21 and the second turntable 22. The ring plate 211 extends perpendicularly to the first turntable 21 and the second turntable 22, thus dividing the space between the first turntable 21 and the second turntable 22 into inner and outer parts. The space located radially outer of the ring plate 211 can be used to wind the three-core wire to be stored, and the ring plate 211 can provide support for the wound three-core wire. The space located radially inner of the ring plate 211 can provide space for external connection of the three-core wire. For example, in the space inner of the ring plate 211, the first, second, and third core wires of the three-core wire can be separated from each other, so that the three core wires of the three-core wire in the storage device 100 can be connected one-to-one with the three core wires of the three-core wire to be externally connected.

[0073] Preferably, the first turntable 21 and the second turntable 22 of the winding wheel frame 20 are connected by a first screw 25.

[0074] In a specific example, such as Figure 4 and Figure 6 As shown, the surface of the second turntable 22 facing away from the first turntable 21 (e.g.) Figure 6 The lower surface of the second turntable 22 shown can be formed with a receiving groove 2201, and the coil spring 60 can be disposed in the receiving groove 2201. A through hole 2202 can be formed on the second turntable 22, and the through hole 2202 can be along the axial direction (e.g., Figure 5 The vertical direction shown (i.e., the thickness direction of the second turntable 22) extends through the second turntable 22. The radial outer end of the coil spring 60 may be provided with a plug-in part 62. The plug-in part 62 extends through the through hole 2202 into the inner space of the ring plate 211 and is connected to the third core wire.

[0075] For example Figures 4-6 As shown, the surface of the second turntable 22 facing away from the first turntable 21 (e.g.) Figure 6 The lower surface of the second turntable 22 shown has a raised annular rib 221. The annular rib 221 is formed as an annulus extending around the rotation axis of the winding wheel frame 20. The inner side of the annular rib 221 defines a receiving groove 2201. A coil spring 60 is provided on the radially inner side of the annular rib 221. The annular rib 221 is formed as an annulus with a notch. A through hole 2202 of the second turntable 22 is formed at the notch position of the annular rib 221. A positioning plate portion is formed on the radially inner side of the notch. The radially outer end of the coil spring 60 is wound around the positioning plate portion. The insertion portion 62 is formed as a sheet extending along the axis of the second turntable 22. One end of the insertion portion 62 abuts against the coil spring 60 wound around the positioning plate portion. The other end of the insertion portion 62 passes through the through hole 2202 for connection with the third core wire (ground wire).

[0076] In a specific example, such as Figure 1 , Figure 3 and Figure 4 As shown, the first connecting part 31 is provided on the first turntable 21, and the first connecting part 31 is located on the side of the first turntable 21 away from the second turntable 22 (e.g., Figure 2 The first connecting portion 31 has a first connecting piece 311 formed on the upper side of the first turntable 21 shown. The first turntable 21 may have a section formed along the axial direction (e.g., ...). Figure 1 As shown in the diagram, the first through hole 2101 (in the vertical direction) passes through the first turntable 21. The first connecting piece 311 can pass through the first through hole 2101 and extend into the inner space of the ring plate 211 to connect with the first core wire. Thus, the electrical connection between the first connecting part 31 and the first core wire can be realized.

[0077] In a specific example, such as Figure 1 , Figure 3 and Figure 4 As shown, the second connecting part 41 is provided on the first turntable 21, and the second connecting part 41 is located on the side of the first turntable 21 away from the second turntable 22 (e.g., Figure 2 The upper side of the first turntable 21 shown), the second connecting portion 41 has a second connecting piece 411 formed on it, and the first turntable 21 has a section formed along the axial direction (e.g.) Figure 1 As shown in the diagram, the second through hole 2102 (in the vertical direction) passes through the first turntable 21. The second connecting piece 411 can first pass through the second through hole 2102 and then extend into the inner space of the ring plate 211 to connect with the second core wire. Thus, the electrical connection between the second connecting part 41 and the second core wire can be realized.

[0078] like Figure 3 and Figure 12 As shown, the surface of the first turntable 21 facing away from the second turntable 22 (e.g.) Figure 3 The upper surface of the first turntable 21 shown has a first limiting groove 2103 and a second limiting groove 2104. Both the first limiting groove 2103 and the second limiting groove 2104 are formed as annular rings extending around the rotation axis. The first limiting groove 2103 and the second limiting groove 2104 are concentrically arranged. The first limiting groove 2103 is located on the outer side of the second limiting groove 2104 in the radial direction. The first connecting part 31 is provided in the first limiting groove 2103. The first through hole 2101 is formed in the first limiting groove 2103. The second connecting part 41 is provided in the second limiting groove 2104. The second through hole 2102 is formed in the second limiting groove 2104.

[0079] In this embodiment, by setting a first limiting groove 2103 and a second limiting groove 2104 to accommodate the first connecting part 31 and the second connecting part 41 respectively, the first limiting groove 2103 and the second limiting groove 2104 can limit the first connecting part 31 and the second connecting part 41 in the radial and axial directions, ensuring that the first connecting part 31 and the second connecting part 41 are reliably fixed on the first turntable 21, thereby ensuring the reliability of the electrical connection between the first connecting part 31 and the second connecting part 41 and the first core wire and the second core wire.

[0080] Furthermore, such as Figure 4 As shown, a wire groove 2105 can be formed on the first turntable 21. The third core wire is disposed within the wire groove 2105. The wire groove 2105 is located on the inner side of the annular plate 211 in the radial direction, and the distance between the wire groove 2105 and the rotation axis is greater than the distance between the first through hole 2101 and the rotation axis and the distance between the second through hole 2102 and the rotation axis. That is, in the radial direction of the first turntable 21, among the wire groove 2105, the first through hole 2101, and the second through hole 2102, the wire groove 2105 is the farthest from the rotation center axis, while the first through hole 2101 and the second through hole 2102 are closer to the rotation axis. Preferably, the distance between the first through hole 2101 and the rotation axis is not equal to the distance between the second through hole 2102 and the rotation axis. In this way, the first core wire, the second core wire, and the third core wire entering the inner side of the annular plate 211 can be arranged separately to avoid mutual interference.

[0081] Furthermore, when the first connecting piece 311 is inserted into the inner side of the ring plate 211 through the first through hole 2101 and the second connecting piece 411 is inserted into the inner side of the ring plate 211 through the second through hole 2102, this embodiment, by placing the first through hole 2101 and the second through hole 2102 of the wire groove 2105 further outward in the radial direction of the first turntable 21, allows the third core wire, which enters the ring plate 211 from the wire inlet 2111 and runs along the wire groove 2105, to avoid the first connecting piece 311 and the second connecting piece 411. This prevents the first connecting piece 311 and the second connecting piece 411 from interfering with the third core wire and prevents the first connecting piece 311 and the second connecting piece 411 from scratching the third core wire, thereby ensuring the reliability of the electrical connection and making the structural design more reasonable.

[0082] like Figure 4 As shown, the surface of the first turntable 21 facing the second turntable 22 (e.g.) Figure 4The lower surface of the first turntable 21 (shown in the diagram) is provided with a first baffle 212 and a second baffle 213. Both the first baffle 212 and the second baffle 213 extend circumferentially along the first turntable 21, and are spaced apart radially from each other. A wire groove 2105 is defined between the first baffle 212 and the second baffle 213. In the radial direction of the first turntable 21, both the first baffle 212 and the second baffle 213 are located radially outside the first through hole 2101 and the second through hole 2102, and radially inside the annular plate 211. The first baffle 212 and the second baffle 213 are both formed as arc-shaped plates extending circumferentially along the first turntable 21, with the first baffle 212 located radially outside the second baffle 213.

[0083] In this embodiment, a first baffle 212 and a second baffle 213 are arranged radially inward and outward, and a wire groove 2105 for the third core wire is formed between the first baffle 212 and the second baffle 213. The first baffle 212 and the second baffle 213 can reliably and effectively limit the third core wire between the first baffle 212 and the second baffle 213, thereby effectively isolating the third core wire from the first connecting piece 311 and the second connecting piece 411 and preventing the first connecting piece 311 and the second connecting piece 411 from scratching the third core wire.

[0084] In one example, such as Figure 4 As shown, a slot 2106 can be formed on the surface of the first turntable 21 facing the second turntable 22. The slot 2106 is located radially inside the wire inlet 2111 and is offset from the wire inlet 2111 in the circumferential direction of the first turntable 21. The three-core wire entering the inner space of the ring plate 211 from the wire inlet 2111 is secured in the slot 2106. When the three-core wire enters the inner space of the ring plate 211 from the wire inlet 2111, the slot 2106 can play a role in the initial pre-positioning of the three-core wire, preventing the three-core wire from moving around randomly in the inner space of the ring plate 211.

[0085] like Figure 4 As shown, a first locking post 214 and a second locking post 215 are formed on the side surface of the first turntable 21 facing the second turntable 22. Both the first locking post 214 and the second locking post 215 extend toward the second turntable 22. The first locking post 214 and the second locking post 215 are located inside the line inlet 2111 and are spaced apart from the line inlet 2111 by a predetermined distance. A slot 2106 is defined between the first locking post 214 and the second locking post 215. The center line of the line inlet 2111 and the center line of the slot 2106 are arranged at an angle. In other words, the extension direction of the slot 2106 is inclined relative to the radial direction of the ring plate 211.

[0086] It should be noted that when the three-core wire is wound on the winding reel 20, the first, second, and third core wires are a single unit. For example, the three-core wire may include a protective layer that completely encloses the first, second, and third core wires. The protective layer on the portion of the three-core wire extending into the inner side of the ring plate 211 can be removed, allowing the first, second, and third core wires to be separated for easy independent wiring.

[0087] According to some embodiments of the present invention, such as Figure 10 As shown, both the first connecting portion 31 and the first wiring portion 32 are formed as annular rings extending around the rotation axis of the winding wheel frame 20, and the first connecting portion 31 and the first wiring portion 32 are opposite each other in the direction of the rotation axis. A first spring piece 312 extending towards the other is formed on one of the first connecting portion 31 and the first wiring portion 32, and the free end of the first spring piece 312 abuts against the other of the first connecting portion 31 and the first wiring portion 32. Specifically, when the first spring piece 312 is formed on the first connecting portion 31, the free end of the first spring piece 312 abuts against the first wiring portion 32; when the first spring piece 312 is formed on the first wiring portion 32, the free end of the first spring piece 312 abuts against the first connecting portion 31. Thus, when the first connecting portion 31 rotates with the winding wheel frame 20, the first spring piece 312 can always maintain sliding contact with the first wiring portion 32 fixed to the housing 10, thus maintaining electrical connection at all times.

[0088] Furthermore, the first spring 312 may include multiple springs, which are arranged at intervals around the rotation axis. By providing multiple springs 312, the contact area between the first wiring part 32 and the first connection part 31 can be increased, the current-carrying area can be increased, and the reliability of the electrical connection between the first connection part 31 and the first wiring part 32 can be guaranteed.

[0089] For example Figure 10 As shown, three first spring contacts 312 are formed on the first connecting portion 31, and these three spring contacts 312 are arranged circumferentially spaced apart in the first connecting portion 31. The first spring contacts 312 extend along an arc in the circumferential direction of the first connecting portion 31. One end of the first spring contact 312 is fixedly connected to the first connecting portion 31 in the circumferential direction, and the other end of the first spring contact 312 extends obliquely towards the first wiring portion 32 and abuts against the first wiring portion 32. This achieves an electrical connection between the first connecting portion 31 and the first wiring portion 32.

[0090] According to some embodiments of the present invention, such as Figure 11As shown, both the second connecting portion 41 and the second wiring portion 42 are formed as annular rings extending around the rotation axis of the winding wheel carrier 20, and the second connecting portion 41 and the second wiring portion 42 are opposite each other in the direction of the rotation axis. A second spring piece 412 extending toward the other is formed on one of the second connecting portion 41 and the second wiring portion 42, and the free end of the second spring piece 412 abuts against the other of the second connecting portion 41 and the second wiring portion 42. Specifically, when the second spring piece 412 is formed on the second connecting portion 41, the free end of the second spring piece 412 abuts against the second wiring portion 42, and when the second spring piece 412 is formed on the second wiring portion 42, the free end of the second spring piece 412 abuts against the second connecting portion 41. Thus, when the second connecting portion 41 rotates with the winding wheel carrier 20, the second spring piece 412 can always maintain electrical connection by sliding contact with the second wiring portion 42 fixed on the housing 10.

[0091] Furthermore, the second spring 412 may include multiple springs, which are arranged at intervals around the rotation axis. By providing multiple springs 412, the contact area between the second wiring portion 42 and the second connection portion 41 can be increased, the current-carrying area can be increased, and the reliability of the electrical connection between the second connection portion 41 and the second wiring portion 42 can be guaranteed.

[0092] For example Figure 11 As shown, three second spring contacts 412 are formed on the second connecting portion 41, and these three spring contacts 412 are arranged circumferentially spaced apart on the second connecting portion 41. The second spring contacts 412 extend along an arc in the circumferential direction of the second connecting portion 41. One end of the second spring contact 412 is fixedly connected to the second connecting portion 41 in the circumferential direction, and the other end of the second spring contact 412 extends obliquely towards the second wiring portion 42 and abuts against the second wiring portion 42. This achieves an electrical connection between the second connecting portion 41 and the second wiring portion 42.

[0093] According to some examples of the invention, such as Figure 2 and Figure 10 As shown, a first connector 321 extending axially is formed on the first connector portion 32. The first connector 321 extends out of the receiving cavity 101 through the first through hole 121. The first connector 321 is used to connect with the first core wire of the external three-core wire.

[0094] Optionally, such as Figure 2As shown, the first connector portion 32 is snap-fitted to the housing 10. Specifically, the first connector portion 32 has a first snap-fit ​​piece 322 extending axially, and the housing 10 has a first snap-fit ​​hole 124. The first snap-fit ​​piece 322 is snap-fitted to the periphery of the first snap-fit ​​hole 124. The first snap-fit ​​piece 322 extends along the axis of the first connector portion 32. After passing through the first snap-fit ​​hole 124, the first snap-fit ​​piece 322 bends under the action of external force and is snapped to the periphery of the first snap-fit ​​hole 124. There are multiple first snap-fit ​​pieces 322, which are spaced apart in the circumferential direction of the first connector portion 32. The width direction of the first snap-fit ​​piece 322 is along the circumferential direction of the first connector portion 32. For example, the first connector portion 32 may have three first snap-fit ​​pieces 322, which are spaced apart in the circumferential direction of the first connector portion. Preferably, the first snap-fit ​​piece 322 is formed as a rectangular piece.

[0095] like Figure 2 and Figure 10 As shown, the first connector 32 may include a first annular piece 323, a first connector piece 321, and a plurality of first snap-fit ​​pieces 322. The first annular piece 323 is formed as an annular piece extending in a plane perpendicular to the axis of rotation. The first connector piece 321 and the plurality of first snap-fit ​​pieces 322 are arranged at intervals in the circumferential direction of the first annular piece 323, and are all connected to the radially inner periphery of the first annular piece 323. The first connector piece 321 extends out of the receiving cavity 101 through the first through hole 121 for connection with the first core wire of the external three-core wire. The plurality of first snap-fit ​​pieces 322 bend under the action of external force after passing through the corresponding first snap-fit ​​holes 124 and are snapped into the periphery of the first snap-fit ​​holes 124.

[0096] According to some examples of the invention, such as Figure 2 and Figure 10 As shown, a second connector 421 extending axially is formed on the second connector portion 42, and the second connector 421 extends out of the receiving cavity 101 through the second through hole 122. The second connector 421 is used to connect with the second core wire of an external three-core wire.

[0097] Optionally, such as Figure 2As shown, the second connector 42 is snap-fitted to the housing 10. Specifically, a second snap-fit ​​piece 422 extending axially is formed on the second connector 42, and a second snap-fit ​​hole 125 is formed on the housing 10. The second snap-fit ​​piece 422 is snap-fitted to the periphery of the second snap-fit ​​hole 125. The second snap-fit ​​piece 422 extends along the axis of the second connector 42. After passing through the second snap-fit ​​hole 125, the second snap-fit ​​piece 422 bends under the action of external force and is snapped to the periphery of the second snap-fit ​​hole 125. There are multiple second snap-fit ​​pieces 422, which are spaced apart in the circumferential direction of the second connector 42. The width direction of the second snap-fit ​​piece 422 is along the circumferential direction of the second connector 42. For example, the second connector 42 may be provided with three second snap-fit ​​pieces 422, which are spaced apart in the circumferential direction of the second connector. Preferably, the second snap-fit ​​piece 422 is formed into a rectangular sheet shape.

[0098] like Figure 2 and Figure 10 As shown, the second wiring portion 42 includes: a second ring plate 423, a second wiring piece 421, and a plurality of second snap-fit ​​pieces 422. The second ring plate 423 is formed as an annular plate extending in a plane perpendicular to the axis of rotation. The second wiring piece 421 and the plurality of second snap-fit ​​pieces 422 are all connected to the radially inner periphery of the second ring plate 423. The second wiring piece 421 and the plurality of second snap-fit ​​pieces 422 extend along the axial direction of the second ring plate 423. The second wiring piece 421 and the plurality of second snap-fit ​​pieces 422 are arranged at intervals in the circumferential direction of the second ring plate 423.

[0099] In another example, the second wiring portion 42 includes: a second ring plate 423, a second wiring piece 421, and a plurality of second snap-fit ​​pieces 422. The second ring plate 423 is formed as an annular plate extending in a plane perpendicular to the axis of rotation. A portion of the plurality of second snap-fit ​​pieces 422 is disposed on the inner periphery of the second ring plate 423 in the radial direction, and another portion of the plurality of second snap-fit ​​pieces 422 is disposed on the outer periphery of the second ring plate 423 in the radial direction. The second wiring piece 421 is disposed on the inner periphery of the second ring plate 423 in the radial direction. The second wiring piece 421 and the plurality of second snap-fit ​​pieces 422 disposed on the inner periphery of the second ring plate 423 are arranged at intervals in the circumferential direction of the second ring plate 423.

[0100] According to some examples of the invention, such as Figure 1 , Figures 10-12As shown, the first connecting portion 31 is snapped into connection with the first turntable 21. Specifically, a third snap-fit ​​piece 314 extending axially is formed on the first connecting portion 31, and a third snap-fit ​​hole 2107 is formed on the first turntable 21. The third snap-fit ​​piece 314 is snapped into connection with the periphery of the third snap-fit ​​hole 2107. The third snap-fit ​​piece 314 extends along the axis of the first connecting portion 31. After passing through the third snap-fit ​​hole 2107, the third snap-fit ​​piece 314 bends under the action of external force and is snapped into the periphery of the third snap-fit ​​hole 2107. There are multiple third snap-fit ​​pieces 314, which are spaced apart in the circumferential direction of the first connecting portion 31. The width direction of the third snap-fit ​​piece 314 is along the circumferential direction of the first connecting portion 31. For example, the first connecting portion 31 may be provided with three third snap-fit ​​pieces 314, which are spaced apart in the circumferential direction of the first connecting portion 31. Preferably, the third snap-fit ​​piece 314 is formed into a rectangular sheet shape.

[0101] like Figure 1 and Figure 10 As shown, the first connecting portion 31 includes a first connecting ring 313, a first connecting piece 311, and a plurality of third locking pieces 314. The first connecting ring 313 is formed as an annular piece extending in a plane perpendicular to the rotation axis. The first connecting piece 311 and the plurality of third locking pieces 314 are arranged at intervals in the circumferential direction of the first connecting ring 313, and the first connecting piece 311 and the plurality of third locking pieces 314 are all connected to the radially inner periphery of the first connecting ring 313, and the first connecting piece 311 and the plurality of third locking pieces 314 extend along the axial direction of the first connecting ring 313. The first connecting piece 311 extends through the first through hole 2101 and out of the space radially inner side of the lower ring plate 211 of the first turntable 21 for connecting with the first core wire of the three-core wire in the storage device 100. The plurality of third locking pieces 314 pass through the corresponding third locking holes 2107 and are bent under the action of external force, and are locked in the periphery of the third locking holes 2107.

[0102] According to some examples of the invention, such as Figure 1 , Figures 10-12As shown, the second connecting portion 41 is engaged with the first turntable 21. Specifically, a fourth engaging piece 414 extending axially is formed on the second connecting portion 41, and a fourth engaging hole 2108 is formed on the first turntable 21. The fourth engaging piece 414 is engaged with the periphery of the fourth engaging hole 2108. The fourth engaging piece 414 extends along the axis of the second connecting portion 41. After passing through the fourth engaging hole 2108, the fourth engaging piece 414 bends under the action of external force and is held at the periphery of the fourth engaging hole 2108. There are multiple fourth engaging pieces 414, which are spaced apart in the circumferential direction of the second connecting portion 41. The width direction of the fourth engaging piece 414 is along the circumferential direction of the second connecting portion 41. For example, the second connecting portion 41 may be provided with three fourth engaging pieces 414, which are spaced apart in the circumferential direction of the second connecting portion 41. Preferably, the fourth engaging piece 414 is formed in a rectangular sheet shape.

[0103] like Figure 1 and Figure 11 As shown, the second connecting portion 41 includes a second connecting ring 413, a second connecting piece 411, and a plurality of fourth locking pieces 414. The second connecting ring 413 is formed as an annular piece extending in a plane perpendicular to the rotation axis. The second connecting piece 411 and the plurality of fourth locking pieces 414 are all connected to the radially inner periphery of the second connecting ring 413, and the second connecting piece 411 and the plurality of fourth locking pieces 414 extend along the axial direction of the second connecting ring 413. The second connecting piece 411 and the plurality of fourth locking pieces 414 are arranged at intervals in the circumferential direction of the second connecting ring 413. The second connecting piece 411 extends through the second through hole 2102 and out of the space radially inner side of the lower ring plate 211 of the first turntable 21 for connecting with the second core wire of the three-core wire in the storage device 100. The plurality of fourth locking pieces 414 pass through the corresponding fourth locking holes 2108 and are bent under the action of external force, and are locked in the periphery of the fourth locking holes 2108.

[0104] Alternatively, in another example, the second connecting portion 41 includes: a second connecting ring 413, a second connecting piece 411, and a plurality of fourth snap-fit ​​pieces 414. The second connecting ring 413 is formed as an annular piece extending in a plane perpendicular to the axis of rotation. A portion of the plurality of fourth snap-fit ​​pieces 414 is disposed on the inner periphery of the second connecting ring 413 in the radial direction, and another portion of the plurality of fourth snap-fit ​​pieces 414 is disposed on the outer periphery of the second connecting piece 411 in the radial direction. The second connecting piece 411 is disposed on the inner periphery of the second connecting ring 413 in the radial direction. The second connecting piece 411 and the plurality of fourth snap-fit ​​pieces 414 disposed on the inner periphery of the second connecting ring 413 are arranged at intervals in the circumferential direction of the second connecting ring 413. The second connecting piece 411 extends through the second through hole 2102 and out of the space on the radial inner side of the lower ring plate 211 of the first turntable 21, for connecting with the second core wire of the three-core wire in the storage device 100. Multiple fourth snap-fit ​​pieces 414 pass through the corresponding fourth snap-fit ​​holes 2108 and are bent under the action of external force, and are snapped around the periphery of the fourth snap-fit ​​holes 2108.

[0105] Optionally, the first connecting part 31, the second connecting part 41, the first wiring part 32 and the second wiring part 42 are all copper sheets.

[0106] According to some embodiments of the present invention, such as Figures 7-9 As shown, the inner surface of the housing 10 is provided with an engagement part 111, and the winding wheel frame 20 is provided with a locking protrusion 23 that is rotatable relative to the winding wheel frame 20. The locking protrusion 23 is adapted to engage with the engagement part 111. When the locking protrusion 23 is engaged with the engagement part 111, the winding wheel frame 20 is fixed to the housing 10 by the locking protrusion 23. When the locking protrusion 23 is not engaged, the winding wheel frame 20 can rotate around its rotation axis. Thus, when the three-core wire inside the storage device 100 is pulled out, the three-core wire drives the winding wheel frame 20 to rotate inside the housing 10. At this time, the coil spring 60 will generate an axial force to restore the winding wheel frame 20 to its initial state. At this time, the locking protrusion 23 is engaged in the engagement part 111, so the three-core wire located outside the storage device 100 will not be retracted into the storage device 100. If the locking protrusion 23 is not engaged in the engagement part 111 at this time, and the three-core wire located outside the storage device 100 is automatically retracted into the storage device 100 from the wire inlet / outlet 102 under the drive of the coil spring 60.

[0107] In this embodiment, by setting a latching protrusion 23 and an engaging part 111 that engages with the latching protrusion 23, the length of the three-core wire outside the storage device 100 can be reasonably adjusted. The structure is simple and the adjustment is convenient.

[0108] like Figure 7As shown, an elastic element 24, which is a spring, connects the latch 23 and the second turntable 22. One end of the spring is connected to the latch 23, and the other end is fixedly connected to the second turntable 22. The latch 23 can rotate relative to the second turntable 22 between a first position and a second position. In the first position, the latch 23 is adapted to engage with the engagement part 111. In the second position, the latch 23 deviates from the slot 2106 on the engagement part 111. The elastic element 24 constantly drives the latch 23 to rotate from the second position to the first position. Thus, the latch 23 and the engagement part 111 can be switched between an engaged state and an unengaged state, facilitating the control of locking the three-core wire to a predetermined length and realizing the automatic retraction of the three-core wire.

[0109] like Figure 8 As shown, the housing 10 includes multiple meshing portions 111, which are spaced apart in the circumferential direction of the housing 10. Each meshing portion 111 includes multiple teeth arranged sequentially in the circumferential direction of the housing 10, with a tooth groove formed between two adjacent teeth. One end of the locking protrusion 23 can engage with any tooth groove in the core portion. Furthermore, in the projection plane perpendicular to the axis of the winding wheel carrier 20, the cross-section of the tooth groove is triangular, and the width of the tooth groove gradually increases from the outside to the inside in the radial direction of the housing 10.

[0110] In one embodiment, such as Figure 9 As shown, the housing 10 includes a box body 11 and a top cover 12. The box body 11 is formed into a box body 11 shape with a circular cross-section and an open top. The top cover 12 is placed on the top of the box body 11. The box body 11 and the top cover 12 cooperate to define an accommodating cavity 101. A fixed shaft is provided at the bottom of the box body 11. The winding wheel frame 20 is rotatably mounted on the fixed shaft. The wire inlet / outlet 102 is formed on the peripheral wall of the box body 11. A first through hole 121, a second through hole 122 and a third through hole 123 are formed on the top cover 12. The first wiring portion 32 of the first conductive group 30 and the second wiring portion 42 of the second conductive group 40 are both fixed on the top cover 12.

[0111] Furthermore, the box body 11 and the top cover 12 are detachably connected; specifically, the box body 11 and the top cover 12 are connected by a second screw 13.

[0112] The following will refer to Figures 1-12 A three-core cable storage device 100 according to a specific embodiment of the present invention is described.

[0113] Reference Figure 1 The three-core wire storage device 100 includes a housing 10, a winding wheel frame 20, a first conductive group 30, a second conductive group 40, a conductive post 50, a coil spring 60, and a fastener 70.

[0114] Specifically, the housing 10 includes a box body 11 and a top cover 12. The box body 11 and the top cover 12 are fixedly connected by a second screw 13 and cooperate to define a receiving cavity 101. The winding wheel frame 20, the first conductive group 30, the second conductive group 40, the conductive post 50, the coil spring 60 and the fastener 70 are all located in the receiving cavity 101.

[0115] The winding wheel frame 20 includes a first turntable 21 and a second turntable 22. The first turntable 21 and the second turntable 22 are fixedly connected by a first screw 25. A ring plate 211 is provided between the first turntable 21 and the second turntable 22. The ring plate 211 separates the space between the first turntable 21 and the second turntable 22 into an inner and outer space. The outer side is used to wind three-core wires, and the inner side is used to connect the live wire, neutral wire and ground wire of the three-core wires.

[0116] The first conductive group 30 is located radially outside the second conductive group 40. The first conductive group 30 includes two copper plates, namely a first wiring portion 32 and a first connecting portion 31, which are used to connect a live wire. A first spring contact 312 is provided between the first wiring portion 32 and the first connecting portion 31, enabling electrical conduction between them. To avoid poor contact, the number of first spring contact 312 is greater than or equal to two.

[0117] The second conductive group 40 includes two copper plates, which are a second wiring portion 42 and a second connecting portion 41, respectively. The second wiring portion 42 and the second connecting portion 41 are used to connect the neutral wire. A second spring contact 412 is provided between the second wiring portion 42 and the second connecting portion 41. The second wiring portion 42 and the second connecting portion 41 achieve conductivity through the second spring contact 412. To avoid poor contact, the number of second spring contact 412 is greater than or equal to 2.

[0118] The first connector 32 and the second connector 42 are fixed to the upper cover 12. The first connector 321 of the first connector 32 and the second connector 421 of the second connector 42 extend out of the upper cover 12 and are exposed on the outer surface of the upper cover 12 for connection with an external three-core wire. The first connector 321 and the second connector 421 are offset from each other in the circumferential direction of the upper cover 12.

[0119] The first connecting part 31 and the second connecting part 41 are fixed to the upper surface of the first turntable 21. The first connecting piece 311 of the first connecting part 31 and the second connecting part 41 of the second connecting part 41 extend downward between the first turntable 21 and the second turntable 22 and are located inside the ring plate 211. The first connecting piece 311 and the second connecting piece 411 are staggered in the circumferential direction of the first turntable 21.

[0120] The ring plate 211 is provided with a wire inlet 2111. The radial inner side of the wire inlet 2111 is provided with a first locking post 214 and a second locking post 215 arranged adjacent to each other. When installing a three-core wire, the connector of the three-core wire is inserted into the wire inlet 2111 and fixed in the space inside the ring plate 211 by the locking groove 2106 between the first locking post 214 and the second locking post 215. At the same time, the ground wire in the three-core wire is routed to a predetermined position through the wire groove 2105 between the first baffle 212 and the second baffle 213 on the radial inner side of the ring plate 211, for example, to the position of the through hole 2202 of the second turntable 22.

[0121] The coil spring 60 and the locking protrusion 23 are installed on the lower side of the second turntable 22. After the coil spring 60 and the locking protrusion 23 are installed on the second turntable 22, the first turntable 21 and the second turntable 22 are fixed together by the first screw 25 to form a turntable assembly. The turntable assembly is installed inside the box body 11, and the center position of the locking spring is fastened to the center of the rotating shaft in the middle of the box body 11. The box body 11 is designed with an intermittent sawtooth structure meshing part 111. Because one end of the locking spring is fixed to the center of the rotating shaft in the middle of the box body 11, when the three-core wire is pulled, the three-core wire drives the winding wheel frame 20 to rotate in the storage device 100. At this time, the coil spring 60 generates an axial force to restore the winding wheel frame 20 to its initial state. If the locking protrusion 23 is engaged in the sawtooth structure meshing part 111, the three-core wire will not be retracted into the storage device 100; if the locking protrusion 23 is not engaged in the sawtooth structure meshing part 111, the three-core wire will be retracted into the storage device 100.

[0122] In this embodiment, a conductive post 50 is fixedly installed at the center of the housing 10 of the storage device 100. Before the coil spring 60 is installed on the second turntable 22, the radial inner end of the coil spring 60 is fixed to the conductive post 50 using fasteners 70. At the same time, the radial outer end of the coil spring 60 is designed with a plug-in part 62, which is formed into a insert shape. After the three-core wire is installed on the winding wheel frame 20, the ground wire connector is inserted into the plug-in part 62 of the coil spring 60 to achieve a reliable connection between the ground wire of the three-core wire, the coil spring 60, and the conductive post 50.

[0123] Meanwhile, after the storage device 100 is assembled, the upper surface of the conductive post 50 is visible on the outer side of the top of the cover 12. When another three-core wire is connected, the storage device 100's own three-core wire and the external three-core wire can be effectively connected, thereby achieving effective grounding of the electrical equipment.

[0124] The three-core wire storage device 100 according to the embodiments of the present invention breaks through the existing patent technology blockade and perfectly solves the reliable grounding problem of the three-core wire automatic storage device 100.

[0125] An electrical device according to a second aspect of the present invention includes a three-core wire storage device 100 according to the first aspect of the present invention described above.

[0126] According to the embodiments of the present invention, by providing the three-core wire storage device 100 of the first aspect embodiment described above, the overall performance of the electrical equipment is improved.

[0127] Among them, electrical equipment can include air conditioners.

[0128] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0129] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0130] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0131] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0132] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A three-core wire storage device, wherein the three-core wire includes a first core wire, a second core wire, and a third core wire, characterized in that, The storage device includes: The housing has a receiving cavity formed inside it, and a line inlet / outlet communicating with the receiving cavity is formed on the housing. The housing also has a first through hole, a second through hole, and a third through hole that are communicated with the receiving cavity and are arranged at intervals. A winding wheel frame, rotatably disposed within the receiving cavity for winding the three-core wire; The first conductive group includes a first connecting part and a first wiring part. The first connecting part is fixed to the winding wheel frame and adapted to be connected to the first core wire located in the receiving cavity. The first wiring part is fixed to the housing and electrically connected to the first connecting part. A portion of the first wiring part extends out of the receiving cavity through the first through hole. The second conductive group includes a second connecting part and a second wiring part. The second connecting part is fixed on the winding wheel frame and adapted to be connected to the second core wire located in the receiving cavity. The second wiring part is fixed on the housing and electrically connected to the second connecting part. A portion of the second wiring part extends out of the receiving cavity through the second through hole. A conductive post, comprising a post body and a conductive screw, wherein the conductive post is fixedly connected to the housing and coaxially arranged with the rotation axis of the winding wheel frame, one end of the conductive post is adapted to be electrically connected to the third core wire located in the receiving cavity, and the other end of the conductive post extends out of the receiving cavity through the third through hole; The winding wheel frame includes: a first turntable and a second turntable arranged perpendicular to the rotation axis of the winding wheel frame; a ring plate extending toward the second turntable is formed on the first turntable; the ring plate is formed as an annulus extending around the rotation axis; a wire inlet is formed on the ring plate and passes through the ring plate in a radial direction; the three-core wire is adapted to be wound on the radially outer side of the ring plate and one end passes through the wire inlet and extends into the ring plate; The first turntable has a first through hole and a second through hole that pass through the first turntable along the axial direction. The first turntable has a wire groove. The wire groove is located on the radial inner side of the ring plate. The distance between the wire groove and the rotation axis is greater than the distance between the first through hole and the rotation axis and the distance between the second through hole and the rotation axis. The third core wire is disposed in the wire groove.

2. The three-core cable storage device according to claim 1, characterized in that, Also includes: A coil spring, the inner radial end of which is fixed and electrically connected to the conductive post, and the outer end of which is electrically connected to the third core wire.

3. The three-core wire storage device according to claim 2, characterized in that, The inner radial end of the coil spring is wound around the outer surface of the conductive post, and a fixing hole is formed at the inner radial end of the coil spring. The coil spring is fixed to the conductive post by fasteners passing through the fixing hole.

4. The three-core wire storage device according to claim 2, characterized in that, A receiving groove is formed on the side surface of the second turntable opposite to the first turntable. The coil spring is disposed in the receiving groove. A through hole is formed on the second turntable along the axial direction. The outer radial end of the coil spring is provided with a plug-in part. The plug-in part passes through the through hole and extends into the inner space of the ring plate to connect with the third core wire.

5. The three-core cable storage device according to claim 1, characterized in that, Both the first connecting portion and the second connecting portion are disposed on the first turntable and located on the side of the first turntable opposite to the second turntable. A first connecting piece is formed on the first connecting portion, and a second connecting piece is formed on the second connecting portion. The first connecting piece passes through the first through hole and extends into the inner space of the ring plate to connect with the first core wire, and the second connecting piece passes through the second through hole and extends into the inner space of the ring plate to connect with the second core wire.

6. The three-core wire storage device according to any one of claims 2-4, characterized in that, The two ends of the coil spring are fixed to the housing and the winding wheel frame respectively to drive the winding wheel frame to reset.

7. The three-core wire storage device according to any one of claims 1-5, characterized in that, Both the first connecting portion and the first wiring portion are formed as annular rings extending around the rotation axis of the winding reel frame, and the first connecting portion and the first wiring portion are opposite each other in the direction of the rotation axis. A first spring tab extending toward the other is formed on one of the first connecting portion and the first wiring portion, and the free end of the first spring tab abuts against the other of the first connecting portion and the first wiring portion; and / or Both the second connecting portion and the second wiring portion are formed as annular rings extending around the rotation axis of the winding wheel frame, and the second connecting portion and the second wiring portion are opposite each other in the direction of the rotation axis. A second spring piece extending toward the other is formed on one of the second connecting portion and the second wiring portion, and the free end of the second spring piece abuts against the other of the second connecting portion and the second wiring portion.

8. The three-core wire storage device according to claim 7, characterized in that, Both the first and second springs include a plurality of springs spaced apart around the axis of rotation.

9. The three-core wire storage device according to claim 7, characterized in that, A first connecting piece extending axially is formed on the first connecting portion, and the first connecting piece extends out of the receiving cavity through the first through hole; A second connector extending axially is formed on the second connector portion, and the second connector extends out of the receiving cavity through the second through hole.

10. The three-core wire storage device according to any one of claims 1-5, characterized in that, The inner surface of the housing is provided with an engagement part, and the winding wheel frame is provided with a locking protrusion that is rotatable relative to the winding wheel frame. The locking protrusion is adapted to engage with the engagement part. When the locking protrusion is engaged with the engagement part, the winding wheel frame is fixed to the housing by the locking protrusion. When the locking protrusion is not engaged with the engagement part, the winding wheel frame can rotate around its rotation axis.

11. An electrical appliance, characterized in that, Includes a three-core cable storage device according to any one of claims 1-10.

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