End cover and motor

Abstract

The invention relates to the technical field of end covers, and provides an end cover and a motor, and the end cover comprises a cover body which is provided with an accommodation cavity used for accommodating a collector ring, the collector ring can rotate relative to the cover body, and the rotation axis of the collector ring coincides with the central axis of the cover body; the carbon brush assembly is arranged in the containing cavity, the carbon brush assembly comprises a brush box and a carbon block arranged in the brush box, and the carbon block can move towards the collecting ring in the radial direction of the cover body so that the side wall of the carbon block can make continuous contact with the peripheral wall of the collecting ring; at least part of the collecting piece is arranged in the containing cavity, the collecting piece is provided with a bearing part arranged corresponding to the peripheral wall of the collecting ring, and the bearing part is used for bearing carbon powder generated when the collecting ring is in contact with the side wall of the carbon block when rotating; and the driving assembly is arranged on the cover body, the driving assembly comprises a driving piece and a rotating rod, the driving piece is connected with the rotating rod to drive the rotating rod to rotate, and the rotating axis of the rotating rod is parallel to the rotating axis of the collecting ring. Through the scheme, the cleaning efficiency of the carbon powder is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of end covers, and in particular to an end cover and a motor. Background Art

[0002] During the operation of the brushed motor, the carbon brush contacts the side wall of the collector ring, and the carbon powder generated by the consumption of the carbon brush will accumulate in the end cover. Due to the electrolytic corrosion and conductivity of the carbon powder, this will cause electrolytic corrosion to the insulation system of the motor, thereby causing a short circuit in the entire motor system, damaging the motor and affecting the service life of the brushed motor.

[0003] In the related art, the accumulated toner is usually cleaned manually, but the above cleaning method is time-consuming and has low cleaning efficiency. Summary of the invention

[0004] The problem solved by the invention is how to improve the cleaning efficiency of carbon powder.

[0005] In order to solve the above problems, the present invention provides an end cover and a motor.

[0006] In a first aspect, the present invention provides an end cover, comprising: a cover body, having an accommodating cavity for accommodating a collector ring, wherein the collector ring can rotate relative to the cover body, and the rotation axis of the collector ring coincides with the central axis of the cover body; a carbon brush assembly, disposed in the accommodating cavity, wherein the carbon brush assembly comprises a brush box and a carbon block disposed in the brush box, wherein the carbon block can move toward the collector ring along the radial direction of the cover body so that the side wall of the carbon block is in continuous contact with the outer peripheral wall of the collector ring; a collector, at least partially disposed in the accommodating cavity, wherein the collector has a contact with the outer peripheral wall of the collector ring A receiving portion is provided, and the receiving portion is used to receive carbon powder generated when the collector ring contacts the side wall of the carbon block when the collector ring rotates; a driving component is provided on the cover body, and the driving component includes a driving member and a rotating rod, the driving member is connected to the rotating rod to drive the rotating rod to rotate, the rotation axis of the rotating rod is parallel to the rotation axis of the collector ring, the receiving portion is fixedly connected to the outer peripheral wall of the rotating rod, and the rotating rod rotates to drive the receiving portion to move relative to the outer peripheral wall of the collector ring, and the receiving portion is circumferentially wound around the outer peripheral wall of the rotating rod.

[0007] The beneficial effects of the end cover of the present invention are as follows: The carbon block can move radially towards the slip ring along the cover body, ensuring that the side wall of the carbon block and the outer peripheral wall of the slip ring can be in continuous and stable contact, thereby ensuring good electrical conductivity of the carbon block, reducing power loss and equipment failures caused by poor contact. Moreover, by providing a receiving portion corresponding to the outer peripheral wall of the slip ring, it can receive the carbon powder generated by the friction between the carbon block and the slip ring, effectively avoiding the accumulation of carbon powder inside the end cover, reducing potential safety hazards such as short circuits and electrical corrosion caused by the accumulation of carbon powder, and improving the reliability and stability of equipment operation. At the same time, the driving component can drive the receiving portion to move relative to the outer peripheral wall of the slip ring and wind the receiving portion around the outer peripheral wall of the rotating rod in the circumferential direction, so that the receiving portion with carbon powder can be wound up, thereby realizing the automatic collection and centralized treatment of carbon powder, which can avoid the tediousness during manual cleaning and is conducive to improving the cleaning efficiency of carbon powder.

[0008] Optionally, the end cover further includes a connecting member. The first end of the connecting member is disposed in the brush box, and the carbon block can abut against one side of the first end to limit the position of the first end. The second end of the connecting member is connected to the driving member. Wherein, the connecting member has a tensioned state and a detached state. When the connecting member is in the tensioned state, the first end is located in the brush box, and the connecting member is used to limit the driving member from driving the rotating rod. When the carbon block moves towards the slip ring, the first end detaches from the brush box, so that the connecting member switches from the tensioned state to the detached state and releases the restriction on the driving member.

[0009] Optionally, there are multiple connecting members. The first ends of the multiple connecting members are arranged at intervals along the radial direction of the cover body. The connecting member also has a relaxed state, and the connecting member in the relaxed state does not limit the driving of the driving member. Among any two adjacent connecting members, when the connecting member farther away from the slip ring is in the tensioned state, the connecting member closer to the slip ring is in the relaxed state, and when the connecting member farther away from the slip ring switches from the tensioned state to the detached state, the connecting member closer to the slip ring switches from the relaxed state to the tensioned state. Wherein, the direction from the first end farthest from the slip ring to the first end closest to the slip ring is the first direction. When the carbon block moves towards the slip ring, the multiple first ends arranged along the first direction can sequentially detach from the brush box, so that the corresponding connecting members sequentially switch from the relaxed state to the tensioned state, then from the tensioned state to the detached state, and enable the driving member to drive the rotating rod.

[0010] Optionally, a plurality of slots are provided in the brush box. The extending direction of the slots is parallel to the axial direction of the cover body, and the plurality of slots are arranged at intervals along the radial direction of the cover body. The connecting members are inserted into the slots in a one-to-one correspondence.

[0011] Optionally, the side wall of the brush box is further provided with an opening communicating with the plurality of slots, the opening extends in the radial direction of the cover body, and the opening is configured to allow the first end to fall off from the inside of the brush box.

[0012] Optionally, the driving member includes a spring and a connecting rod. The spring is drivingly connected to the rotating rod. One end of the connecting rod is connected to the spring to limit the rotation of the spring. The connecting rod is provided with a plurality of connecting ends arranged at intervals along its own axial direction. The connecting ends are arranged in one-to-one correspondence with the second ends, and the second ends are fixedly connected to the corresponding connecting ends. When the connecting member is in the tension state, the connecting rod restricts the rotation of the spring. When the connecting member is in the falling-off state, the spring is used to drive the rotating rod to rotate.

[0013] Optionally, the end cover further includes two connecting columns spaced apart in the accommodating cavity. The extending directions of the two connecting columns are parallel to the axial direction of the cover body. Two ends of the collecting member are respectively connected to the two connecting columns, and at least part of the receiving portion is wound around the outer peripheral wall of the connecting column along the circumferential direction of the connecting column.

[0014] Optionally, the collecting member includes two plastic films. The side walls of the two plastic films jointly form the receiving portion. One end of one of the plastic films is wound around the outer peripheral wall of one of the connecting columns. One end of the other plastic film is wound around the outer peripheral wall of the other connecting column. The other end of the other plastic film is fixedly connected to the outer peripheral wall of the rotating rod. The rotating rod rotates to drive the side walls of the two plastic films to be wound around the outer peripheral wall of the rotating rod.

[0015] Optionally, the carbon brush assembly further includes an elastic member. The elastic member is connected to the end of the carbon block away from the slip ring. The elastic member is used to apply a force to the carbon block from the edge of the cover body towards the center of the cover body to drive the carbon block to move.

[0016] In a second aspect, the present invention provides a motor, including the above-mentioned end cover.

[0017] The beneficial effects of the motor of this embodiment compared with the prior art are the same as those of the above-mentioned end cover, and will not be elaborated here. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the end cover provided by the embodiment of the present invention; Figure 2 It is a front view schematic diagram of the end cover provided by the embodiment of the present invention; Figure 3 Side view schematic diagram of the end cap provided by an embodiment of the present invention; Figure 4 Bottom view schematic diagram of the end cap provided by an embodiment of the present invention; Figure 5 Structural schematic diagram of the brush box provided by an embodiment of the present invention; Figure 6 Structural schematic diagram of the connecting piece provided by an embodiment of the present invention; Figure 7 is Figure 2 Enlarged schematic diagram at position A in

[0019] Explanation of reference numerals: Cover body 10, slip ring 11, accommodation cavity 12, notch 13, Carbon brush assembly 20, brush box 21, carbon block 22, slot 23, opening 24, elastic member 25, Collection member 30, receiving portion 31, plastic film 32, Drive assembly 40, drive member 41, rotating rod 42, connecting rod 43, Connecting piece 50, connecting column 60, Axial direction X of the cover body, radial direction Y of the cover body. Detailed implementation manners

[0020] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0021] At the same time, it should be noted that the meanings represented by the foregoing Y-axis and X-axis are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0022] As used herein, the term "comprising" and its variations are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0023] It should be noted that the modifications of "one" and "plural" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0024] As Figures 1 to 7 shown, in a first aspect, the present invention provides an end cap, comprising: a cover body 10 having a receiving cavity 12 for receiving a slip ring 11, the slip ring 11 being rotatable relative to the cover body 10, and the rotation axis of the slip ring 11 coinciding with the central axis of the cover body 10; a carbon brush assembly 20 disposed in the receiving cavity 12, the carbon brush assembly 20 including a brush box 21 and carbon blocks 22 disposed in the brush box 21, the carbon blocks 22 being movable along the radial direction of the cover body 10 towards the slip ring 11 so that the side walls of the carbon blocks 22 are in continuous contact with the outer peripheral wall of the slip ring 11; a collecting member 30 at least partially disposed in the receiving cavity 12, the collecting member 30 having a receiving portion 31 corresponding to the outer peripheral wall of the slip ring 11, the receiving portion 31 being used for receiving carbon powder generated by the contact between the outer peripheral wall of the slip ring 11 and the side walls of the carbon blocks 22 during the rotation of the slip ring 11; a driving assembly 40 disposed on the cover body 10, the driving assembly 40 including a driving member 41 and a rotating rod 42, the driving member 41 being connected to the rotating rod 42 to drive the rotating rod 42 to rotate, the rotation axis of the rotating rod 42 being parallel to the rotation axis of the slip ring 11, the receiving portion 31 being fixedly connected to the outer peripheral wall of the rotating rod 42, and the rotating rod 42 rotating to drive the receiving portion 31 to move relative to the outer peripheral wall of the slip ring 11 and wind the receiving portion 31 around the outer peripheral wall of the rotating rod 42 in the circumferential direction.

[0025] In this embodiment, the X-axis direction is the axial direction of the cover body 10, and the Y-axis direction is a radial direction of the cover body 10.

[0026] In this embodiment, an electrostatic adsorption structure can be further added to the receiving portion 31 to adsorb the carbon powder through the electrostatic adsorption structure, and a carbon powder concentration sensor is provided. When the carbon powder concentration sensor detects that the carbon powder reaches the threshold value, the driving assembly 40 can be enabled to drive the rotating rod 42 to rotate so as to wind the receiving portion 31 for receiving the carbon powder, thereby further improving the carbon powder collection efficiency.

[0027] In this embodiment, the carbon block is driven to move by the elastic force of the elastic member. Of course, in other embodiments, the carbon block can also be driven to move by driving a push rod with a driving motor. The specific setting should be selected according to the use environment of the device.

[0028] At the same time, an encoder can be integrated in the driving assembly 40 to record the winding times of the rotating rod 42, and a wireless communication module can be added to upload the cleaning data of the toner and the operating state of the device to the cloud, so as to realize the monitoring of the toner cleaning function.

[0029] The beneficial effects of the end cover of the present invention are as follows: The carbon block 22 can move radially toward the slip ring 11 along the cover body 10, which ensures that the side wall of the carbon block 22 is in continuous and stable contact with the outer peripheral wall of the slip ring 11, thus ensuring good electrical conductivity of the carbon block 22, reducing power loss and equipment failures caused by poor contact, and by providing a receiving portion 31 corresponding to the outer peripheral wall of the slip ring 11, it can receive the toner generated by the friction between the carbon block 22 and the slip ring 11, effectively avoiding the accumulation of toner inside the end cover, reducing potential safety hazards such as short circuits and electro-erosion that may be caused by toner accumulation, and improving the reliability and stability of the equipment operation. At the same time, the driving assembly 40 can drive the receiving portion 31 to move relative to the outer peripheral wall of the slip ring 11 and wind the receiving portion 31 around the outer peripheral wall of the rotating rod 42 in the circumferential direction, so that the receiving portion 31 with toner can be wound up, thereby realizing the automatic collection and centralized treatment of the toner, which can avoid the cumbersome process of manual cleaning and is beneficial to improving the cleaning efficiency of the toner.

[0030] As Figures 1 to 6 shown, optionally, the end cover further includes a connecting member 50. The first end of the connecting member 50 is disposed in the brush box 21, and the carbon block 22 can abut against one side of the first end to limit the position of the first end. The second end of the connecting member 50 is connected to the driving member 41. Among them, the connecting member 50 has a tensioned state and a detached state. When the connecting member 50 is in the tensioned state, the first end of the connecting member 50 is located in the brush box 21, and the connecting member 50 is used to limit the driving member 41 from driving the rotating rod 42. When the carbon block 22 moves toward the slip ring 11, the first end can fall off from the brush box 21, so that the connecting member 50 switches from the tensioned state to the detached state and releases the restriction on the driving member 41.

[0031] By setting the above structure, when the carbon block 22 moves a set distance radially due to wear to maintain contact with the slip ring 11, the connecting member 50 can automatically switch from the tensioned state to the detached state. At this time, the driving member 41 can be triggered to start the rotating rod 42 to wind the receiving portion 31, thereby realizing the cleaning of the toner, avoiding the risk of poor contact or short circuit caused by toner accumulation. At the same time, in this embodiment, the automatic cleaning of the toner is realized by mechanical triggering, which is beneficial to improving the cleaning efficiency of the toner.

[0032] As Figures 1 to 6 shown, optionally, there are multiple connecting members 50. The first ends of the multiple connecting members 50 are arranged at intervals along the radial direction of the cover body 10. The connecting member 50 also has a relaxed state, and the connecting member 50 in the relaxed state does not restrict the driving of the driving member 41; among any two adjacent connecting members 50, when the connecting member 50 far from the slip ring 11 is in a tensioned state, the connecting member 50 close to the slip ring 11 is in a relaxed state, and when the connecting member 50 far from the slip ring 11 switches from the tensioned state to the detached state, the connecting member 50 close to the slip ring 11 switches from the relaxed state to the tensioned state; wherein, the direction from the first end farthest from the slip ring 11 to the first end closest to the slip ring 11 is the first direction. When the carbon block 22 moves towards the slip ring 11, the multiple first ends arranged along the first direction can be sequentially detached from the brush box 21, so that the corresponding connecting members 50 are sequentially switched from the relaxed state to the tensioned state, then from the tensioned state to the detached state, and the driving member 41 drives the rotating rod 42.

[0033] In this embodiment, in this way, among any two adjacent connecting members 50, when the previous connecting member 50 just releases the restriction on the connecting member 50, since the adjacent latter connecting member 50 is in a relaxed state, it does not restrict the driving effect of the driving member 41. Therefore, the driving member 41 can drive until the latter connecting member 50 reaches the tensioned state, and the driving member 41 will be restricted and stop driving.

[0034] In this implementation, the connecting member 50 is a connecting wire, and the first end of the connecting member 50 is made of hard plastic. When the carbon block 22 is in the brush box 21, since the hard plastic cannot be bent back, the connecting member 50 cannot be detached. Only when the carbon block 22 is used beyond the slot 23, the hard plastic pops out in the slot 23, and the connecting member 50 can be detached from the brush box 21. The driving member 41 can drive the rotating rod 42 to rotate. At the same time, when the first ends are sequentially detached, multiple connecting members 50 can be switched from the relaxed state to the tensioned state, then from the tensioned state to the detached state, and the driving member 41 drives the rotating rod 42 to realize the function of automatically cleaning the carbon powder multiple times at regular intervals, so as to meet the carbon powder cleaning requirements of the device.

[0035] In this embodiment, the connecting member 50 with the first end farthest from the slip ring 11 has the shortest length, and the connecting member 50 with the first end closest to the slip ring 11 has the longest length.

[0036] As Figure 7 shown, in this embodiment, there are 5 connecting members 50. The connecting member 50 with the first end farthest from the slip ring 11 is the first one, and the second end of this connecting member 50 is in Figure 7The middle position is in the upper right corner, and the fifth connecting piece 50 of the first end closest to the slip ring 11. The second end of the connecting piece 50 is in Figure 7 The middle position is in the lower left corner. During the use of the carbon block 22, the first connecting piece is in a tensioned state, and the second to fifth connecting pieces are in a relaxed state. When the carbon block 22 gradually wears and shortens, the first connecting piece switches from the tensioned state to the detached state. At this time, the driving piece 41 can be triggered to start the rotating rod 42 to wind the receiving part 31, so as to clean the carbon powder until the second connecting piece switches from the relaxed state to the tensioned state. At this time, the driving of the rotating rod 42 by the driving piece 41 is restricted by the second connecting piece. When waiting for the carbon block 22 to continue to wear and shorten, the second connecting piece switches from the tensioned state to the detached state. At this time, the driving piece 41 can be triggered to start the rotating rod 42 to wind the receiving part 31, so as to clean the carbon powder until the third connecting piece switches from the relaxed state to the tensioned state. At this time, the driving of the rotating rod 42 by the driving piece 41 is restricted by the third connecting piece. The fourth and fifth connecting pieces repeat the above process in turn to realize automatic cleaning of carbon powder at regular intervals for multiple times.

[0037] By setting the above structure, when the connecting piece 50 far from the slip ring 11 falls off due to the wear of the carbon block 22, the connecting piece 50 close to the slip ring 11 automatically switches from the relaxed state to the tensioned state, so as to ensure that the driving piece 41 can be triggered once every time the wear amount of the carbon block 22 reaches a preset threshold, avoiding carbon powder accumulation.

[0038] As Figure 5 shown, optionally, a plurality of slots 23 are provided in the brush box 21. The extending direction of the slots 23 is parallel to the axial direction of the cover body 10. The plurality of slots 23 are arranged at intervals along the radial direction of the cover body 10. The connecting pieces 50 are arranged in one-to-one correspondence with the slots 23.

[0039] By setting the above structure, when the usage amount of the carbon block 22 exceeds the slot 23 farthest from the slip ring 11, the shortest first connecting line falls off, and the driving piece 41 drives the rotating rod 42 to rotate to wind the receiving part 31 with carbon powder until the adjacent connecting piece 50 tightens and the driving piece 41 stops driving. When waiting for the usage amount of the carbon block 22 to exceed the second slot 23, the above process is repeated to realize automatic cleaning of carbon powder at regular intervals for multiple times.

[0040] In this embodiment, the frequency of cleaning carbon powder can be adjusted by adjusting the number of the slots 23 and the connecting pieces 50 and the length of the connecting pieces 50.

[0041] As Figure 5 shown, optionally, the side wall of the brush box 21 is further provided with an opening 24 communicating with the plurality of slots 23. The opening 24 extends along the radial direction of the cover body 10. The opening 24 is configured to allow the first end to fall off from the inside of the brush box 21.

[0042] By setting the above structure, a directional shedding path can be provided for the first end of the connecting member 50. When the carbon block 22 wears out, after the connecting member 50 slides axially to the position of the opening 24, it directly detaches from the brush box 21 through the opening 24, avoiding jamming or interference with other components caused by deviation in the shedding direction, thus improving the shedding efficiency of the first end.

[0043] At the same time, the above-mentioned multiple slots 23 share one opening 24, which also reduces the processing difficulty of the structure and is beneficial to improving the processing efficiency of the structure.

[0044] Optionally, the driving member 41 includes a spiral spring (not shown) and a connecting rod 43. The spiral spring is drivingly connected to the rotating rod 42. One end of the connecting rod 43 is connected to the spiral spring to limit the rotation of the spiral spring. A plurality of connecting ends are arranged at intervals along the axial direction of the connecting rod 43. The connecting ends are arranged in one-to-one correspondence with the second ends, and the second ends are fixedly connected to the corresponding connecting ends. When the connecting member 50 is in a tensioned state, the connecting rod 43 restricts the rotation of the spiral spring. When the connecting member 50 is in a shedding state, the spiral spring is used to drive the rotating rod 42 to rotate.

[0045] By setting the above structure, when the connecting member 50 is in a tensioned state, the elastic potential energy stored in the spiral spring cannot be released. At the moment when the connecting member 50 detaches, the spiral spring releases energy to drive the rotating rod 42. This not only can meet the automatic carbon powder cleaning function of the device, but also reduces the use cost of the device. At the same time, the multiple connecting ends of the connecting rod 43 correspond to the connecting members 50 at different positions. When the connecting member 50 far from the slip ring 11 detaches, only the energy storage of the spiral spring corresponding to the connecting end is released to achieve the function of cleaning the carbon powder multiple times.

[0046] As Figure 1 and Figure 2 shown, optionally, the end cap further includes two connecting columns 60 spaced apart in the receiving cavity 12. The extending directions of the two connecting columns 60 are parallel to the axial direction of the cover body 10. Both ends of the collecting member 30 are respectively connected to the two connecting columns 60, and at least part of the receiving portion 31 is wound around the outer peripheral wall of the connecting column 60 along the circumferential direction of the connecting column 60.

[0047] By setting the above structure, both ends of the collecting member 30 are fixed to the two spaced connecting columns 60, forming a storage structure of a reel. In this way, the collected carbon powder can be wound and accumulated along the circumferential direction of the rotating rod 42, thereby increasing the collecting capacity of the carbon powder. And when the collecting member 30 is wound under the drive of the rotating rod 42, the carbon powder is evenly distributed due to the centrifugal force, and it can also avoid local accumulation and overflow of the carbon powder. At the same time, the connecting column 60 extends axially to make full use of the longitudinal space of the receiving cavity 12, which is beneficial to reducing the overall volume of the end cap.

[0048] As Figure 1 and Figure 2As shown, optionally, the collection member 30 includes two plastic films 32. The side walls of the two plastic films 32 together form a receiving portion 31. One end of one plastic film 32 is wound around the outer peripheral wall of a connecting column 60, and the other end of one plastic film 32 is fixedly connected to the outer peripheral wall of the rotating rod 42. One end of the other plastic film 32 is wound around the outer peripheral wall of the other connecting column 60, and the other end of the other plastic film 32 is fixedly connected to the outer peripheral wall of the rotating rod 42. The rotating rod 42 rotates to drive the side walls of the two plastic films 32 to wind around the outer peripheral wall of the rotating rod 42.

[0049] By setting the above structure, since the plastic film 32 has a low density, is corrosion-resistant, and has excellent insulation performance, the safety of toner cleaning can be ensured. Moreover, the two plastic films 32 work independently to form a two-path toner collection to increase the toner collection capacity.

[0050] In this embodiment, a notch 13 is provided on the cover body 10, and the plastic cloth is led out through the notch 13 and connected to the outer peripheral wall of the rotating rod 42.

[0051] Optionally, the carbon brush assembly 20 further includes an elastic member 25. The elastic member 25 is connected to the end of the carbon block 22 away from the slip ring 11. The elastic member 25 is used to apply a force to the carbon block 22 from the edge of the cover body 10 towards the center of the cover body 10 to drive the carbon block 22 to move.

[0052] This ensures that the side wall of the carbon block 22 can continuously and stably contact the outer peripheral wall of the slip ring 11, thus ensuring good electrical conductivity of the carbon block 22, reducing power loss and equipment failures caused by poor contact. At the same time, a monitoring device can be provided in the brush box 21 to monitor the contact pressure between the carbon block 22 and the slip ring 11 in real time, and through the position of the brush box 21 relative to the outer peripheral wall of the slip ring 11, this can enable the carbon block 22 to maintain the best contact pressure and extend the service life of the carbon block 22 and the slip ring 11.

[0053] In a second aspect, the present invention provides a motor including the above-mentioned end cover.

[0054] The beneficial effects of the motor in this embodiment compared with the prior art are the same as those of the above-mentioned end cover, and will not be elaborated here.

[0055] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. An end cap, characterized in that, Comprising: A cover body (10) having a receiving cavity (12) for receiving a slip ring (11), the slip ring (11) being rotatable relative to the cover body (10), and the rotation axis of the slip ring (11) coinciding with the central axis of the cover body (10); A carbon brush assembly (20) disposed in the receiving cavity (12), the carbon brush assembly (20) including a brush box (21) and carbon blocks (22) disposed in the brush box (21), the carbon blocks (22) being movable along the radial direction of the cover body (10) towards the slip ring (11) so that the side walls of the carbon blocks (22) are in continuous contact with the outer peripheral wall of the slip ring (11); A collecting member (30), at least partially disposed in the receiving cavity (12), the collecting member (30) having a receiving portion (31) corresponding to the outer peripheral wall of the slip ring (11), the receiving portion (31) being used for receiving carbon powder generated when the outer peripheral wall of the slip ring (11) contacts the side walls of the carbon blocks (22) during rotation; A driving assembly (40) disposed on the cover body (10), the driving assembly (40) including a driving member (41) and a rotating rod (42), the driving member (41) being connected to the rotating rod (42) to drive the rotating rod (42) to rotate, the rotation axis of the rotating rod (42) being parallel to the rotation axis of the slip ring (11), the receiving portion (31) being fixedly connected to the outer peripheral wall of the rotating rod (42), and the rotating rod (42) rotating to drive the receiving portion (31) to move relative to the outer peripheral wall of the slip ring (11) and wind the receiving portion (31) around the outer peripheral wall of the rotating rod (42) in the circumferential direction.

2. The end cap according to claim 1, wherein The end cover further includes a connecting member (50), a first end of the connecting member (50) being disposed in the brush box (21), the carbon block (22) being capable of abutting against one side of the first end to limit the position of the first end, and a second end of the connecting member (50) being connected to the driving member (41); Wherein, the connecting member (50) has a tensioned state and a detached state. When the connecting member (50) is in the tensioned state, the first end of the connecting member (50) is located in the brush box (21), and the connecting member (50) is used to limit the driving member (41) from driving the rotating rod (42); when the carbon block (22) moves towards the slip ring (11), the first end detaches from the brush box (21) so that the connecting member (50) switches from the tensioned state to the detached state and releases the restriction on the driving member (41).

3. The end cap according to claim 2, characterized in that, The connecting members (50) are multiple in number. The first ends of the multiple connecting members (50) are arranged at intervals in the radial direction of the cover body (10). The connecting members (50) also have a relaxed state, and when in the relaxed state, the connecting members (50) do not restrict the driving of the driving member (41). Among any two adjacent connecting members (50), when the connecting member (50) farther away from the slip ring (11) is in the tension state, the connecting member (50) closer to the slip ring (11) is in the relaxed state, and when the connecting member (50) farther away from the slip ring (11) switches from the tension state to the detachment state, the connecting member (50) closer to the slip ring (11) switches from the relaxed state to the tension state. Wherein, the direction from the first end farthest from the slip ring (11) towards the first end closest to the slip ring (11) is the first direction. When the carbon block (22) moves towards the slip ring (11), the multiple first ends arranged along the first direction can sequentially fall off from the brush box (21), so that the corresponding connecting members (50) sequentially switch from the relaxed state to the tension state and then from the tension state to the detachment state.

4. The end cap according to claim 3, characterized in that, A plurality of slots (23) are provided in the brush box (21). The extending direction of the slots (23) is parallel to the axial direction of the cover body (10). The multiple slots (23) are arranged at intervals in the radial direction of the cover body (10). The connecting members (50) are inserted into the slots (23) in a one-to-one correspondence.

5. The end cap according to claim 4, wherein An opening (24) communicating with the multiple slots (23) is further provided on the side wall of the brush box (21). The opening (24) extends in the radial direction of the cover body (10), and the opening (24) is configured to allow the first end to fall off from the brush box (21).

6. The end cap according to claim 3, characterized in that, The driving member (41) includes a spring and a connecting rod (43). The spring is drivingly connected to the rotating rod (42). One end of the connecting rod (43) is connected to the spring to restrict the rotation of the spring. A plurality of connecting ends arranged at intervals along the axial direction of the connecting rod (43) are provided on the connecting rod (43). The connecting ends are arranged in a one-to-one correspondence with the second ends of the connecting members (50), and the second ends are fixedly connected to the corresponding connecting ends. When the connecting member (50) is in the tension state, the connecting rod (43) restricts the rotation of the spring. When the connecting member (50) is in the detachment state, the spring is used to drive the rotating rod (42) to rotate.

7. The end cap according to any one of claims 1-6, characterized in that, The end cover further includes two connecting columns (60) spaced apart in the accommodating cavity (12). The extending direction of the two connecting columns (60) is parallel to the axial direction of the cover body (10). Two ends of the collecting member (30) are respectively connected to the two connecting columns (60), and at least part of the receiving portion (31) is wound around the outer peripheral wall of the connecting column (60) along the circumferential direction of the connecting column (60).

8. The end cap according to claim 7, characterized in that, The collecting member (30) includes two plastic films (32), and the two plastic films (32) jointly form the receiving portion (31). One end of one of the plastic films (32) is wound around the outer peripheral wall of one of the connecting columns (60), and one end of the other plastic film (32) is fixedly connected to the outer peripheral wall of the rotating rod (42). The other end of one of the plastic films (32) is wound around the outer peripheral wall of the other connecting column (60), and the other end of the other plastic film (32) is fixedly connected to the outer peripheral wall of the rotating rod (42). The rotating rod (42) rotates to drive the two plastic films (32) to wind around the outer peripheral wall of the rotating rod (42).

9. The end cap according to claim 1, characterized in that, The carbon brush assembly (20) further includes an elastic member (25). The elastic member (25) is connected to the end of the carbon block (22) away from the slip ring (11). The elastic member (25) is used to apply a driving force to the carbon block (22) to move the carbon block (22) radially along the cover body (10) towards the slip ring (11).

10. A motor, characterized in that, Comprising an end cap according to any one of claims 1 to 8.

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