Conductive slip ring and household appliance having the same

Abstract

The present invention discloses a conductive slip ring and a household appliance. The conductive slip ring comprises a first module and a second module. The first module comprises a fixed seat and a plurality of annular conductive rings arranged in the fixed seat, the diameters of the plurality of conductive rings are different from each other and have a common center, and the plurality of conductive rings are arranged at intervals along the diameter direction of the fixed seat. The second module is connected to the first module in correspondence, and the second module comprises a PCB and a plurality of contact terminals and a plurality of output terminals arranged on the PCB. The first module and the second module can rotate relative to each other around a rotation axis, each of the conductive rings is in contact with and cooperates with at least one of the plurality of contact terminals, and the contact terminal forms an electrical connection through the PCB and the output terminal to transmit power and / or signals. The conductive slip ring has a small axial dimension and can transmit large current at the same time, and is suitable for use in household appliances with limited space (especially length).

Description

Technical Field

[0001] The invention relates to a conductive slip ring and a household appliance having the conductive slip ring. Background Art

[0002] Some household appliances need to transmit signals and / or large currents synchronously while rotating, and this is when a conductive slip ring is needed. A typical example is a hair dryer, where a conductive slip ring is provided at the handle, allowing the hair dryer body to move freely and be used at a convenient angle for the user, while also being able to transmit current without twisting the power cord. Currently, most conductive slip rings are long and straight, with small radial dimensions but large axial dimensions. Alternatively, there is a type of conductive slip ring that is disc-type, with the terminal disposed on a planar end face of a disc-shaped component and the conductive ring disposed on a planar end face of another disc-shaped component; although this disc-type conductive slip ring has a small axial dimension, the planar contact between the terminal and the conductive ring makes it impossible to transmit large currents, and cannot be used in household appliances with limited space. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a conductive slip ring, which has a small axial size and can transmit large current, and is suitable for use in household appliances with limited space (especially length). The present invention also provides a household appliance having the conductive slip ring, which has a relatively small overall volume.

[0004] A first aspect of the present invention relates to a conductive slip ring, comprising:

[0005] A first module comprises a fixing seat and a plurality of annular conductive rings arranged in the fixing seat, wherein the diameters of the plurality of conductive rings are different from each other and have a common center, and the plurality of conductive rings are arranged at intervals along the diameter direction of the fixing seat; and

[0006] A second module, which is connected to the first module correspondingly, and the second module includes a PCB and a plurality of contact terminals and a plurality of output terminals arranged on the PCB;

[0007] The first module and the second module are capable of relatively rotating around a rotation axis, each of the conductive rings is in contact with at least one of the multiple contact terminals, and the contact terminals are electrically connected to the output terminals through the PCB to transmit power and / or signals.

[0008] In some preferred embodiments, the fixing seat is provided with a plurality of annular fixing grooves spaced apart along its diameter direction, the fixing grooves have notches facing the second module, a conductive ring is arranged in each of the fixing grooves, and the contact terminals are inserted into the fixing grooves to contact and cooperate with the conductive rings.

[0009] In some preferred embodiments, the conductive ring is a thin-walled metal ring formed by a metal sheet, and the size of the side wall of the metal ring along the rotation axis is larger than the size along the diameter direction of the fixing seat.

[0010] In some preferred embodiments, the fixing seat is fixed on a cable clamping seat, and each of the conductive rings is electrically connected to a cable connected to the cable clamping seat.

[0011] In some preferred embodiments, the number of the contact terminals is N, the number of the output terminals is M, N is greater than or equal to M, the N contact terminals are divided into M groups, each of the output terminals is electrically connected to a group of the contact terminals, at least one group of the contact terminals includes n electrically connected contact terminals, and n is a positive integer greater than or equal to 2 and less than N.

[0012] In some more preferred embodiments, the n contact terminals of at least one group of the contact terminals are arranged at intervals along a circle, and the center of the circle is on the rotation axis.

[0013] In some more preferred embodiments, a circuit layer for conducting n terminals of at least one group of the contact terminals is provided on the PCB, and the output terminal is electrically connected to the circuit layer.

[0014] In some more preferred embodiments, the number of the conductive rings is M, and each of the conductive rings is in contact with a group of the contact terminals.

[0015] In some preferred embodiments, the second module further includes a mounting seat, the PCB is disposed on the mounting seat, and the contact terminals or the output terminals are electrically connected to the PCB after passing through the mounting seat.

[0016] In some more preferred embodiments, the first module also includes a first connecting shaft arranged in the fixing seat, and the second module also includes a second connecting shaft, the first connecting shaft and the second connecting shaft are electrically connected, a through hole is opened on the mounting seat, and the second connecting shaft passes through the through hole, a bearing is arranged between the second connecting shaft and the mounting seat, and the second connecting shaft has an output end, and the output end is exposed relative to the mounting seat to transmit power and / or signals.

[0017] In some more preferred embodiments, the first connecting shaft and the second connecting shaft are threadedly connected.

[0018] In some preferred embodiments, the contact terminal comprises an elastic spring sheet, and the spring sheet extends along the rotation axis toward the first module.

[0019] In some preferred embodiments, the conductive ring has a guide portion that gradually slopes outwards in a direction toward the second module.

[0020] In some preferred embodiments, the contact terminal abuts against the inner surface of the conductive ring.

[0021] A second aspect of the present invention relates to a household appliance comprising the conductive slip ring.

[0022] In some preferred embodiments, the household appliance is a hair dryer.

[0023] The present invention adopts the above solution, which has the following advantages compared with the prior art:

[0024] The conductive slip ring of the present invention has multiple conductive rings arranged radially, and the contact terminal is in contact with the inner or outer surface of the conductive ring, so as to make full use of the radial space and reduce the axial size of the conductive slip ring; at the same time, it can withstand a large current, which can be greater than 15A, and the temperature rise is small. The conductive slip ring can effectively utilize the radial space, so that the conductive slip ring does not occupy too much axial size, which is very beneficial to the design of household appliances, and can help reduce the axial size of household appliances, especially can effectively reduce the overall length of the hair dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 A three-dimensional diagram of a conductive slip ring according to an embodiment of the present invention is shown.

[0027] Figure 2 A structural diagram of a conductive slip ring from another perspective according to an embodiment of the present invention is shown.

[0028] Figure 3 A structural diagram of a conductive slip ring according to an embodiment of the present invention is shown from another perspective.

[0029] Figure 4 for Figure 3 Sectional view along AA direction.

[0030] Figure 5 An exploded view of a conductive slip ring according to an embodiment of the present invention is shown.

[0031] in:

[0032] 1. first module; 10. fixing seat; 101. fixing groove; 11. conductive ring; 110. guide part; 12. cable clamping seat; 13. first connecting shaft;

[0033] 2. Second module; 20. Mounting seat; 201. Positioning column; 202. Limiting block; 21. PCB; 211a. First circuit layer; 211b. Second circuit layer; 22. Contact terminal; 23. Output terminal; 24. Second connecting shaft; 241. Output end; 25. Bearing;

[0034] 3. Cable; 31. Wire;

[0035] X, axis of rotation. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0037] In this document, the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0038] Figures 1 to 5 The drawings are drawn in true proportion. To keep the specification concise, the proportions of each component are not listed one by one. However, the proportions and positions of each component should be regarded as part of the content of this specification.

[0039] The present embodiment provides a conductive slip ring, which is used in a household appliance for transmitting power or signals; and can maintain the transmission of power or signals without interruption during the rotation process. The present embodiment also provides a household appliance having the conductive slip ring. Specifically, the household appliance can be a hair dryer, and the conductive slip ring is arranged at the handle of the hair dryer, and is used to transmit power to the hair dryer body and transmit signals.

[0040] Figures 1 to 5 A conductive slip ring is shown. Figures 1 to 5As shown, the conductive slip ring includes a first module 1 and a second module 2. The first module 1 is connected to the second module 2 correspondingly and can rotate relative to each other around a rotation axis X. In one example, the first module 1 is used as a female connector and the second module 2 is a male connector that cooperates with it. It should be noted that the above is only an optional example. When applied, the first module 1 is located at or fixed at the end of the cable, and the central axis of the second module 2 is electrically connected to another shaft of the first module 1, and the outer ring part of the second module 2 is movable relative to the central part. One side of the second module 2 is electrically connected to the first module 1 through multiple contact terminals 221; the other side is electrically connected to multiple conductive clips on the PCB inside the electronic device through multiple output terminals 23, and the shaft of the second module 2 is fixed to a sliding terminal on the PCB inside the electronic device, and can be rotatably clamped for conduction. In addition, electrical energy can also be transmitted through the intermediate shaft. In this way, when the user holds the electronic device (such as a hair dryer) and rotates it, the intermediate shaft can transmit electrical energy, and the PCB inside the electronic device will drive the various output terminals 23 fixed thereto and cause the movable outer ring of the second module 2 to rotate together. At the same time, since the inner ring and the outer ring of the second module 2 are connected via the bearing, the first module 1 is basically not affected by the rotation of the second module 2. Therefore, the second module 2 can drive the multiple contact terminals 221 to rotate in the fixed seat 10 and electrically connect with the conductive ring 11, thereby achieving the effect of transmitting electrical energy.

[0041] The various components of the first module 1 are described in detail below. The first module 1 includes a fixing seat 10 , a conductive ring 11 , a cable clamping seat 12 and a first connecting shaft 13 .

[0042] The fixing base 10 is disc-shaped as a whole and is made of insulating material, such as plastic. The fixing base 10 has a fixing groove 101 that is generally annular, and the number of the fixing grooves 101 can be one or more. Specifically, in the example shown in the accompanying drawings, the number of the fixing grooves 101 is multiple, specifically three. The diameters of the multiple fixing grooves 101 are different from each other and have a common center, and the center of the circle is on the rotation axis X; that is, the multiple fixing grooves 101 are distributed in concentric rings, which are arranged at intervals along the diameter direction of the fixing base 10, and the above-mentioned rotation axis X passes through the center of each fixing groove 101. Furthermore, the fixing groove 101 is opened on the end face of the fixing base 10 facing the second module 2, and extends axially from the end face into the fixing base 10, so as to have a notch facing the second module 2.

[0043] The conductive ring 11 is a circular ring that cooperates with the fixing groove 101. The conductive ring 11 is a thin-walled metal ring formed by a metal sheet, and the size of its side wall along the axial direction is larger than its size (thickness) along the radial direction, and the whole is in the shape of a hollow cylinder. The conductive ring 11 is made of a material with excellent conductivity, including but not limited to a copper ring, an aluminum ring, etc. The number of the conductive ring 11 can also be one or more. Specifically, in the example shown in the accompanying drawings, as shown in FIG. Figure 4 and Figure 5 As shown, the shape and position of the conductive ring 11 correspond to the shape and position of the fixing groove 101, and a conductive ring 11 is inserted in each fixing groove 101. Accordingly, the diameters of the plurality of conductive rings 11 are different from each other and have a common center, which is on the rotation axis X; that is, the plurality of conductive rings 11 are distributed in a concentric ring shape, which are arranged at intervals along the diameter direction of the fixing seat 10, and the above-mentioned rotation axis X passes through the center of each conductive ring 11. In the radial direction, the plurality of conductive rings 11 are mutually sleeved from the inside to the outside, and the spacing between them in the axial direction is zero.

[0044] It should also be noted that the thickness of the conductive ring 11 is smaller than the width of the fixing groove 101, and the conductive ring 11 is attached to one side wall of the fixing groove 101, and there is a gap between the conductive ring 11 and the other side wall of the fixing groove 101, which serves as an insertion space. Further, the conductive ring 11 has a guide portion 110 that gradually tilts outward in the direction toward the second module 2, and the guide portion 110 as a whole constitutes a gradually expanding bell mouth portion.

[0045] The cable holder 12 is an insulating component, fixed on the cable 3, and is generally sleeved on the end of the cable 3. The cable 3 holder 12 and the fixing seat 10 are fixedly connected to fix the cable 3 and the fixing seat 10 to each other. Among them, the cable 3 may have one or more wires 31, depending on the number of paths for the power and / or signals to be transmitted. One or more wires 31 of the cable 3 are electrically connected to the conductive ring 11 to transmit power and / or signals. Specifically, in the example shown in the accompanying drawings, multiple wires 31 and multiple conductive rings 11 are connected one by one, and are conductive to each other to transmit power or signals.

[0046] The first connecting shaft 13 is disposed on the fixing seat 10. Specifically, the first connecting shaft 13 is fixedly inserted into the fixing seat 10. The first connecting shaft 13 extends along the rotation axis X, and takes the rotation axis X as its center line. The first connecting shaft 13 has the following two functions: (1) mechanically connecting the first module 1 and the second module 2 to prevent them from being separated from each other; accordingly, at least the end of the first connecting shaft 13 has a thread; (2) transmitting power and / or signals; accordingly, the first connecting shaft 13 is a conductor and is also used to transmit one path of power or signals.

[0047] The following describes in detail the components of the second module 2. The second module 2 includes a mounting base 20, a PCB (circuit board) 21, contact terminals 22, output terminals 23, a second connecting shaft 24 and a bearing 25.

[0048] The mounting seat 20 is an insulating member, and the PCB 21 is arranged on the mounting seat 20. The mounting seat 20 and the PCB 21 are both disc-shaped as a whole, and the two are stacked along the axial direction. Among them, a positioning column 201 is provided on one surface of the mounting seat 20, and a positioning hole is correspondingly provided on the PCB 21, and the positioning column 201 is inserted into the positioning hole.

[0049] There are multiple contact terminals 22. The contact terminal 22 can be a spring extending substantially in the axial direction, which extends toward the first module 1. The contact terminal 22 is provided on the PCB 21; specifically, the contact terminal 22 passes through the hole on the mounting seat 20, one end of the contact terminal 22 is inserted on the PCB 21, and the other end extends into the fixing groove 101 of the first module 1. The PCB 21 is also provided with a stopper 202 for placing the contact terminal 22 out of the way.

[0050] The number of output terminals 23 may be one or more, depending on the number of paths of power and / or signals to be transmitted. The output terminals 23 are arranged on the PCB 21, and are located on different sides of the PCB 21 with the contact terminals 22. The output terminals 23 extend away from the first module 1 along the rotation axis X. Each output terminal 23 is electrically connected to at least one contact terminal 22 through the PCB 21 to transmit power and / or signals.

[0051] The second connecting shaft 24 is disposed on the mounting seat 20. Specifically, the second connecting shaft 24 is inserted into the through hole of the mounting seat 20 through the bearing 25. The second connecting shaft 24 extends along the rotation axis X, and takes the rotation axis X as its center line. The second connecting shaft 24 has the following two functions: (1) mechanically connecting the first module 1 and the second module 2 to prevent them from being separated from each other; accordingly, at least the first end of the second connecting shaft 24 has a thread; (2) transmitting power and / or signals; accordingly, the second connecting shaft 24 is a conductor, and its second end is exposed relative to the mounting seat 20 and the PCB 21, and is used as an output end 241 to transmit one path of power or signal.

[0052] The connection relationship between the first module 1 and the second module 2 is specifically described as follows: the first ends of the first connecting shaft 13 and the second connecting shaft 24 are connected to each other, and each contact terminal 22 is inserted into the corresponding fixing groove 101 and contacts and cooperates with the conductive ring 11 in the fixing groove 101. The first ends of the first connecting shaft 13 and the second connecting shaft 24 are threadedly connected, and the two are sleeved on each other, one is provided with an internal thread, and the other is provided with an external thread that cooperates with each other. After the first connecting shaft 13 and the second connecting shaft 24 are threadedly connected, they are connected to each other to form an electric power or signal transmission path, and the electric power or signal is transmitted through the output end of the second connecting shaft 24. Each conductive ring 11 contacts and cooperates with at least one of the multiple contact terminals 22, and the contact terminal 22 is electrically connected to the output terminal 23 through the PCB 21, forming multiple electric power or signal transmission paths, and transmitting electric power or signals through the output terminal 23.

[0053] Furthermore, a conductive ring 11 is provided in each fixing groove 101, and the contact terminal 22 is inserted into the fixing groove 101 from the notch of the fixing groove 101 to contact and cooperate with the conductive ring 11, specifically, to abut against the inner surface of the conductive ring 11. During the insertion process, the outwardly expanded guide portion of the conductive ring 11 has a guiding effect on the contact terminal 22, which is conducive to the insertion of the contact terminal 22. After insertion, the contact terminal 22 is in a deformed state, so that it can be tightly pressed against the conductive ring 11, and during the rotation of the second module 2 relative to the first module 1, the effective transmission of power or signal is guaranteed to avoid power or signal interruption.

[0054] The number of contact terminals 22 is defined as N, and the number of output terminals 23 is defined as M, where N is greater than or equal to M. Preferably, M=1-8. The N contact terminals 22 are divided into M groups, and each output terminal 23 is electrically connected to a group of contact terminals 22. At least one group of contact terminals 22 includes n contact terminals 22, where n is a positive integer greater than or equal to 2 and less than N, and the n contact terminals 22 of the group of contact terminals 22 are arranged at intervals along a circle, and the center of the circle is on the rotation axis X. The M groups of contact terminals 22 are arranged at intervals along the diameter direction of the PCB 21, and the number of conductive rings 11 is also M, and each conductive ring 11 is in contact with and cooperates with a group of contact terminals 22. If the number of terminals in a group of contact terminals 22 is greater than or equal to 2, a circuit layer that conducts each terminal in a group of contact terminals 22 is correspondingly provided on the PCB 21, and the circuit layer is electrically connected to the corresponding output terminal 23. In one embodiment, N=9, M=3, and the 9 contact terminals 22 are divided into 3 groups, wherein the number of terminals in the 2nd group of contact terminals 22 is 4, and the 3rd group of contact terminals 22 includes only 1 contact terminal 22 .

[0055] Specifically, in the example shown in the drawings, the number of the conductive ring 11 and the number of the output terminals 23 are both three. Figure 3As shown, the first output terminal 23a located at the outermost side is electrically connected to the four contact terminals 22; specifically, the PCB 21 is provided with a first circuit layer 211a, the four contact terminals 22 are in contact with the first circuit layer 211a, and the first output terminal 23a is provided on the first circuit layer 211a, thereby forming an electric power or signal path. The second output terminal 23b located in the middle is electrically connected to the other four contact terminals 22; specifically, the PCB 21 is provided with a second circuit layer 211b, the four contact terminals 22 are in contact with the second circuit layer 211b, and the second output terminal 23b is provided on the second circuit layer 211b, thereby forming a second electric power or signal path. The third output terminal 23c located at the innermost side is electrically connected to only one contact terminal 22, and the two can be directly contacted and conducted, thereby forming a third electric power or signal path. In addition, the first connecting shaft 13 and the second connecting shaft 24 form a fourth electric power or signal path. For example, the first and fourth electric power or signal paths are used to transmit electric power, and the second and third electric power or signal paths are used to transmit signals.

[0056] In a specific example, the above-mentioned conductive slip ring is applied to a hair dryer to provide power to the hair dryer body.

[0057] The working principle of the above-mentioned conductive slip ring is as follows: during the rotation of the second module 2 relative to the first module 1, the contact terminal 22 makes a circular motion around the rotation axis X and always contacts the conductive ring 11, stably transmitting power or signals; at the same time, during the rotation of the second module 2, the second connecting shaft 24 remains stationary and always connects to the first connecting shaft 13, which can also stably transmit power or signals. When the conductive slip ring is applied to household appliances, users can hold the household appliances and perform 360° rotation operations without interruption of power and signals, meeting the needs of users in special occasions.

[0058] The conductive slip ring has the following advantages: (1) The contact terminal 22 and the conductive ring 11 are in side-wall contact, that is, the contact terminal 22 is against the inner surface of the conductive ring 11, which greatly utilizes the radial space and reduces the axial size of the conductive slip ring; (2) The first module 1 and the second module 2 are connected by the first connecting shaft 13 and the second connecting shaft 24, so that the two can be quickly connected; (3) The contact terminal 22 and the output terminal 23 are connected to form a loop by using the characteristic disc PCB 21, which can withstand a large current of more than 15A and a temperature rise of less than 30°C. In short, the conductive slip ring can effectively utilize the radial space, so that the conductive slip ring does not occupy too much axial size, which is very beneficial to the design of the hair dryer and can help reduce the length of the hair dryer; and it can transmit large current while making the product smaller and the temperature rise is small.

[0059] As shown in this specification and claims, the terms "comprises" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the relevant listed items.

[0060] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0061] It should be noted that, unless otherwise specified, when a feature is referred to as being “fixed” or “connected” to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature.

[0062] The above embodiment is only for illustrating the technical concept and features of the present invention, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conductive slip ring, characterized in that: include: A first module includes a fixing seat and a plurality of annular conductive rings arranged in the fixing seat, wherein the diameters of the plurality of conductive rings are different from each other and have a common center, and the plurality of conductive rings are arranged at intervals along the diameter direction of the fixing seat; as well as A second module, which is connected to the first module correspondingly, and the second module includes a PCB and a plurality of contact terminals and a plurality of output terminals arranged on the PCB; Wherein, the first module and the second module are capable of relatively rotating around a rotation axis, each of the conductive rings is in contact with at least one of the plurality of contact terminals, and the contact terminal is electrically connected to the output terminal through the PCB to transmit power and / or signals; The fixing seat is provided with a plurality of annular fixing grooves spaced apart along the diameter direction thereof, the fixing grooves having notches facing the second module, each of the fixing grooves being provided with a conductive ring, and the contact terminal being inserted into the fixing groove to contact and cooperate with the conductive ring; The conductive ring is a thin-walled metal ring formed by a metal sheet, and the size of the side wall of the metal ring along the rotation axis is larger than the size along the diameter direction of the fixing seat; The contact terminal comprises a spring sheet, and the spring sheet extends along the rotation axis toward the first module; the conductive ring has a guide portion that gradually tilts outward in a direction toward the second module; the contact terminal abuts against the inner surface of the conductive ring; The second module also includes a mounting seat, the PCB is arranged on the mounting seat, and the contact terminal or the output terminal is electrically connected to the PCB after passing through the mounting seat; the second module also includes a second connecting shaft, the second connecting shaft has an output end, and the output end is exposed relative to the mounting seat to transmit power and / or signals.

2. The conductive slip ring according to claim 1, characterized in that: The fixing seat is fixed on a cable clamping seat, and each of the conductive rings is electrically connected to a cable connected to the cable clamping seat.

3. The conductive slip ring according to claim 1, characterized in that: The number of the contact terminals is N, the number of the output terminals is M, N is greater than or equal to M, the N contact terminals are divided into M groups, each of the output terminals is electrically connected to a group of the contact terminals, at least one group of the contact terminals includes n electrically connected contact terminals, n is a positive integer greater than or equal to 2 and less than N; the n contact terminals of at least one group of the contact terminals are arranged along a circle at intervals, and the center of the circle is on the rotation axis; a circuit layer that connects the n terminals of at least one group of the contact terminals is provided on the PCB, and the output terminals are electrically connected to the circuit layer; the number of the conductive rings is M, and each of the conductive rings is in contact with and cooperates with a group of the contact terminals.

4. The conductive slip ring according to claim 1, characterized in that: The first module also includes a first connecting shaft arranged in the fixing seat, the first connecting shaft and the second connecting shaft are electrically connected, a through hole is opened on the mounting seat, the second connecting shaft passes through the through hole, and a bearing is arranged between the second connecting shaft and the mounting seat.

5. The conductive slip ring according to claim 4, characterized in that: The first connecting shaft and the second connecting shaft are threadedly connected.

6. A household appliance, characterized in that: Comprising the conductive slip ring according to any one of claims 1 to 5.

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