Rotating shaft, motor and automatic discharging device

Abstract

The invention discloses a rotating shaft, a motor and an automatic discharging device, the rotating shaft comprises a hollow rotating shaft body, the hollow rotating shaft body is internally provided with a separation part, and the separation part separates the internal space of the hollow rotating shaft body to form at least two runners; the at least two flow channels are arranged in the length direction of the hollow rotating shaft body, the input ends of the at least two flow channels are located on the first end face of the hollow rotating shaft body, an opening is formed in the second end face of the hollow rotating shaft body, and the opening is communicated with the at least two flow channels. According to the embodiment of the invention, the problem of consumable mixing can be avoided, and the miniaturization design of the automatic discharging device can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a rotating shaft, a motor and an automatic discharging device. Background Art

[0002] There are already some automatic discharging devices on the market, for example, electric toothbrushes that automatically dispense toothpaste or skin care devices that automatically dispense skin care products, but currently these automatic discharging devices can only dispense a single type of consumable. If multiple consumables are dispensed and a common pipeline is used, the former consumable will remain in the pipeline and will be mixed with the other consumable that is dispensed later. Setting up multiple independent pipelines will increase the size of the automatic discharging device, which is not conducive to the miniaturized design of the automatic discharging device. Summary of the invention

[0003] The present application provides a rotating shaft, a motor and an automatic discharging device, which can avoid the problem of consumables mixing and is conducive to the miniaturized design of the automatic discharging device.

[0004] In a first aspect, the present application provides a rotating shaft, comprising: a hollow rotating shaft body, wherein a partition is provided inside the hollow rotating shaft body, wherein the partition partitions the internal space of the hollow rotating shaft body to form at least two flow channels;

[0005] The at least two flow channels are arranged along the length direction of the hollow shaft body respectively, the input ends of the at least two flow channels are respectively located at the first end surface of the hollow shaft body, the second end surface of the hollow shaft body is provided with an opening, and the opening is respectively connected to the at least two flow channels.

[0006] In a second aspect, the present application provides a motor, comprising the rotating shaft described in the first aspect.

[0007] In a third aspect, the present application provides an automatic discharging device, comprising the motor described in the second aspect.

[0008] In the embodiment of the present application, the rotating shaft is set as a hollow structure, and at least two flow channels are formed inside the rotating shaft. In this way, when the rotating shaft is applied to an automatic discharging device, different flow channels in the at least two flow channels can form flow channels for different consumables. Since the different flow channels are independent of each other, the problem of mixing consumables can be avoided. At the same time, since the flow channels are set inside the rotating shaft, the internal space of the rotating shaft can be reused. Therefore, setting at least two flow channels does not require additional space inside the automatic discharging device, which is conducive to the miniaturization design of the automatic discharging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is one of the structural schematic diagrams of the rotating shaft provided in the embodiment of the present application;

[0010] Figure 2 This is the second structural schematic diagram of the rotating shaft provided in the embodiment of the present application;

[0011] Figure 3 (a) to Figure 3 (e) is one of the cross-sectional schematic diagrams of the rotating shaft in the embodiment of the present application;

[0012] Figure 4 (a) to Figure 4 (c) is a second cross-sectional schematic diagram of the rotating shaft in the embodiment of the present application;

[0013] Figure 5 (a) to Figure 5 (c) is a third cross-sectional schematic diagram of the rotating shaft in the embodiment of the present application;

[0014] Figure 6 is an exploded view of a motor provided in an embodiment of the present application;

[0015] Figure 7 is a schematic diagram of the structure of the motor provided in the embodiment of the present application;

[0016] Figure 8 is a schematic structural diagram of a rotor support in an embodiment of the present application;

[0017] Fig. 9 It is a schematic diagram of the structure of the steel sheet in the embodiment of the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] In the following, in conjunction with the accompanying drawings, a rotating shaft, a motor and an automatic discharging device provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0021] See also Figure 1-2 , Figure 1-2 The embodiment of the present application provides a rotating shaft, which comprises: a hollow rotating shaft body 100, wherein a partition 110 is provided inside the hollow rotating shaft body 100, wherein the partition 110 separates the internal space of the hollow rotating shaft body 100 to form at least two flow channels 120;

[0022] The at least two flow channels 120 are respectively arranged along the length direction of the hollow shaft body 100 , and the input ends of the at least two flow channels 120 are respectively located at the first end surface 130 of the hollow shaft body 100 . The second end surface 140 of the hollow shaft body 100 is provided with an opening, and the opening is respectively connected to the at least two flow channels 120 .

[0023] The rotating shaft can be used as the rotating shaft of the internal motor of various automatic discharging devices, wherein the automatic discharging device can be an electric toothbrush that automatically discharges toothpaste or a skin care device that automatically outputs skin care products.

[0024] Specifically, the consumables output device inside the automatic discharging device can be connected to the input end of the flow channel 120, for example, the output end of the peristaltic pump inside the automatic discharging device can be connected to the input end of the flow channel 120 through a hose. At the same time, the output end of the flow channel 120 can be connected to the output head of the automatic discharging device, specifically, the output end of the flow channel 120 can be connected to the consumables input end of the output head. In this way, on the one hand, the motor inside the automatic discharging device can drive the output head through the hollow shaft body 100, and on the other hand, the consumables output device inside the automatic discharging device can provide consumables to the output head through the flow channel 120 inside the hollow shaft body 100 to achieve automatic discharging.

[0025] Among them, the output head can be a brush head of an electric toothbrush, a care head of various care equipment, a massage head, etc. The consumables can be toothpaste, mouthwash, oral care liquid, facial cleanser, various skin care products, etc.

[0026] It is understandable that the automatic discharging device may output different consumables in different working modes. For example, when the automatic discharging device is a skin care device, since the skin care device has multiple skin care modes, the skin care products used in different skin care modes may be different, wherein the skin care products are the above-mentioned consumables. If multiple skin care products share one flow channel 120, it may cause the consumables transmitted this time to mix with the residual substances of the previous consumables in the pipeline, thereby causing the problem of poor skin care effect. Based on this, in an embodiment of the present application, by forming at least two flow channels 120 inside the hollow shaft body 100, one flow channel 120 can be dedicated to transmitting one consumable, thereby avoiding the problem of the consumables transmitted this time mixing with the residual substances of the previous consumables in the pipeline.

[0027] The extending direction of the flow channel 120 may be parallel to the axial direction of the hollow shaft body 100. The number of the flow channels 120 may be set according to actual needs, for example, see Figure 3 (a)-3(e) are cross-sectional schematic diagrams of the hollow shaft body 100 when the number of the flow channels 120 inside the hollow shaft body 100 is 2 in the embodiment of the present application. Figure 4 (a)-4(c) are cross-sectional schematic diagrams of the hollow shaft body 100 when the number of the flow channels 120 inside the hollow shaft body 100 is 3 in the embodiment of the present application. Figure 5 (a)-5(c) are cross-sectional schematic diagrams of the hollow shaft body 100 when the number of the flow channels 120 inside the hollow shaft body 100 is 4 in the embodiment of the present application. It should be noted that: Figure 3-5 This is only an example of some embodiments of the present application. In fact, the cross-sectional shape and number of the above-mentioned flow channels 120 can be adjusted as needed. The number of flow channels 120 can be set to 2 to 8. For the sonic wave motor, due to the small volume of the rotating shaft, the number of flow channels 120 can be 2 to 4. If it exceeds this range, the flow channel 120 will become very narrow, and the single output of consumables will be very small. The cross-sectional shape of each flow channel 120 can be one or more combinations of circular, elliptical, fan-shaped, semicircular, half-moon, polygonal, and irregular shapes. Moreover, each flow channel 120 can be a straight pipe, a curved pipe, a spiral pipe or an irregular pipe, which is not limited by the present application.

[0028] The cross-sectional shape of the hollow shaft body 100 may be a round tube, or may be partly a flat tube and partly a round tube.

[0029] The partition 110 may be integrally formed with the hollow shaft body 100 . In addition, the partition 110 may also be formed by embedding a detachable partition into the hollow shaft body 100 .

[0030] In this embodiment, by setting the rotating shaft as a hollow structure and forming at least two flow channels 120 inside the rotating shaft, when the rotating shaft is applied to the automatic discharging device, different flow channels 120 in the at least two flow channels 120 can form flow channels 120 for different consumables. Since the different flow channels 120 are independent of each other, the problem of mixing consumables can be avoided. At the same time, since the flow channels 120 are set inside the rotating shaft, the setting of at least two flow channels 120 does not need to occupy additional space inside the automatic discharging device, which is conducive to the miniaturization design of the automatic discharging device.

[0031] Optionally, the opening includes at least two sub-openings 150 corresponding one-to-one to the at least two flow channels 120, the at least two sub-openings 150 are relatively spaced apart, the flow channel 120 extends from the first end face 130 to the corresponding sub-opening 150 in the second end face 140, and the sub-opening 150 forms the output end of the corresponding flow channel 120.

[0032] It can be understood that, in the at least two flow channels 120, each flow channel 120 extends from the first end surface 130 to the second end surface 140. In the hollow shaft body 100, different flow channels 120 are not connected to each other.

[0033] In this embodiment, since each flow channel 120 extends from the first end surface 130 to the second end surface 140, different flow channels 120 are not connected to each other in the hollow shaft body 100, thus avoiding the problem of consumables in different flow channels 120 mixing with each other.

[0034] Optionally, a mixing channel connecting the at least two flow channels 120 is further provided inside the hollow shaft body 100 , and the mixing channel is used to mix at least two consumables.

[0035] Optionally, the mixing flow channel may be two or more flow channels 120 connected thereto, the number of the mixing flow channels may be one or more, and multiple mixing flow channels may be arranged in parallel positions or at different positions on the rotating shaft. The positions of different mixing flow channels may be arranged to achieve mixing of different consumables at different stages, and the present application does not impose any restrictions on this.

[0036] Correspondingly, when a mixing channel is further provided inside the hollow shaft body 100 , the mixing channel can be set at any position of the hollow shaft body 100 , so the sub-opening of the second end face 140 can be one or more, and the present application does not impose any limitation on this.

[0037] In addition, during the operation of the above-mentioned automatic discharging device, there may be a situation where more than two materials need to be mixed. For some consumables that need to be mixed, it is necessary to control the mixing timing of the consumables to achieve the maximum effect. Among them, some consumables will become ineffective or reduce the effect if mixed in advance, so it is also necessary to solve the problem of how to avoid mixing of consumables during non-target transmission periods.

[0038] Based on this, in an embodiment of the present application, a mixing flow channel connected to the at least two flow channels 120 is provided in the hollow shaft body 100. In this way, the relative lengths of the flow channel 120 and the mixing flow channel can be changed, and the mixing timing of each consumable can be accurately controlled, thereby solving the problem of how to avoid mixing of consumables during non-target transmission periods.

[0039] Specifically, when the consumables transported by the at least two flow channels 120 need to be mixed at the same time, the lengths of the at least two flow channels 120 can be the same, and the output ends of the at least two flow channels 120 are located in the same plane. The output ends of the at least two flow channels 120 are respectively connected to the input ends of the mixing flow channel, and the output end of the mixing flow channel is located at the opening. In this way, the consumables in each flow channel 120 can enter the mixing flow channel from the same position for mixing.

[0040] Correspondingly, when some of the consumables transported by the at least two channels 120 need to be mixed first and the other parts need to be mixed later, the length of the channel 120 that needs to be mixed first can be made shorter than the length of the channel 120 that needs to be mixed later, that is, the consumables in each channel 120 can enter the mixing channel from different positions for mixing.

[0041] In addition, when some of the consumables transmitted by the at least two flow channels 120 need to be mixed first and the other part needs to be mixed later, two mixing flow channels can also be formed in the hollow shaft body 100. The consumables that need to be mixed first can be mixed for the first time through one mixing flow channel, and the consumables that have been mixed for the first time can be mixed for the second time with the consumables that need to be mixed later through another mixing flow channel. Accordingly, more than three mixing flow channels can also be formed in the hollow shaft body 100 to be suitable for scenarios where the consumables need to be mixed in at least three stages.

[0042] In this embodiment, a mixing flow channel connected to the at least two flow channels 120 is provided in the hollow shaft body 100. In this way, the relative lengths of the flow channel 120 and the mixing flow channel can be changed, and the position of the mixing flow channel can be changed, so that the mixing timing of each consumable can be accurately controlled, thereby solving the problem of how to avoid mixing of consumables during non-target transmission periods and ensuring that the efficacy of the consumables is maximized.

[0043] Optionally, a one-way valve is provided in the flow channel 120 , and an output end of the one-way valve faces an output end of the corresponding flow channel 120 .

[0044] Among them, the one-way valve can be various types of one-way valves in the related technology. For example, in some embodiments of the present application, the one-way valve can be a duckbill valve, a silicone one-way valve, a Tesla valve, etc.

[0045] It is understandable that a one-way valve may be provided in each of the above-mentioned flow channels 120. In this way, the consumables can only flow from the input end to the output end of the flow channel 120, but cannot flow back from the output end to the input end side of the flow channel 120.

[0046] In this embodiment, a one-way valve is provided in the flow channel 120 , so that the problem of backflow of consumables in the flow channel 120 can be avoided.

[0047] Optionally, the rotating shaft is further provided with a processing device for processing consumables, and the processing device can be arranged on the outer wall of the rotating shaft or in the flow channel or the partition 110, and the present application does not impose any limitation on this.

[0048] In this embodiment, the partition 110 is embedded with a processing device, and the processing device includes at least one of the following devices: a temperature control plate, a catalytic plate with a catalyst for catalyzing the reaction of consumables, a lamp board, a radio frequency device and a microcurrent device.

[0049] Specifically, in order to promote the rapid release of active ingredients from the consumables and stimulate the efficacy of the consumables, in an embodiment of the present application, a processing device may also be embedded in the partition 110 , so that during the transmission of the consumables in the above-mentioned flow channel 120 , the processing device may be controlled to process the consumables.

[0050] It is understandable that, in the at least two flow channels 120, the processing devices corresponding to different flow channels 120 may be the same or different. In addition, when the automatic discharging device is in different working modes, different processing devices may also be triggered.

[0051] The temperature control plate can be used to adjust the temperature of the consumables, for example, the consumables can be heated or cooled. The catalytic plate is used to catalyze the consumables to undergo a catalytic reaction. The light board can emit various types of light, for example, fluorescent light, ultraviolet light, infrared light, etc. The radio frequency device can output radio frequency signals. The micro current device can output micro current.

[0052] When the processing device is embedded in the partition 110, the partition 110 can be formed by an independent component embedded in the hollow shaft body 100. In this way, during the installation process, the processing device can be embedded in the partition 110 first, and then the partition 110 can be embedded in the hollow shaft body 100.

[0053] In this embodiment, a processing device is embedded in the partition 110. Thus, during the transmission of the consumables in the flow channel 120, the processing device can be controlled to process the consumables, thereby promoting the consumables to quickly release active ingredients and stimulate the efficacy of the consumables.

[0054] It should be noted that the above-mentioned processing device can also be arranged at other positions outside the partition 110. For example, in other embodiments of the present application, one section of the hollow shaft body 100 can be set as a transparent structure, and this part is called a transparent segment. Then, the above-mentioned processing device is embedded in the outer wall of the transparent segment. Due to the transparency of the side wall of the transparent segment, the signal output by the processing device can penetrate the transparent segment to process the consumables flowing through the transparent segment.

[0055] Optionally, the hollow shaft body 100 includes a first segment 160, an outer side wall of the first segment 160 is provided with a first plane 161 and a second plane 162, the first plane 161 and the second plane 162 are opposite to each other, and a distance between the first plane 161 and the second plane 162 is smaller than a diameter of the hollow shaft body 100;

[0056] When the rotating shaft is a rotating shaft of a motor, the cross-sectional shape of the first segment 160 matches the cross-sectional shape of the connecting hole 210 of the rotor support 200 in the motor, and the first segment 160 is used to connect to the connecting hole 210 of the rotor support 200 .

[0057] The cross-sectional shape of the first segment 160 matches the cross-sectional shape of the connecting hole 210 of the rotor support 200 in the motor, which may mean that the cross-sectional shape of the first segment 160 is the same as the cross-sectional shape of the connecting hole 210 , and the cross-sectional size of the first segment 160 may be the same as the cross-sectional size of the connecting hole 210 of the rotor support 200 .

[0058] The distance between the first plane 161 and the second plane 162 is smaller than the diameter of the hollow shaft body 100 , that is, the first segment 160 is a flat tube.

[0059] See also Figure 6-9 , is a structural schematic diagram of a motor provided in an embodiment of the present application, wherein the motor includes a rotating shaft in the above embodiment, a rotor group mounted on the rotating shaft, and a stator assembly spaced apart from the rotor group.

[0060] The rotor assembly includes a rotor support 200 and a coil 300 wound on the rotor support 200. The rotor support 200 is formed by stacking a plurality of steel sheets 900. Figure 8 , is a schematic diagram of the structure of the rotor support 200 formed by stacking a plurality of steel sheets 900 in a direction perpendicular to the paper surface. It can be understood that the structures of the steel sheets 900 are the same. Figure 8 It can also be a structural schematic diagram representing one of the steel sheets 900. Figure 8The rotor support 200 includes a connecting portion 220, a first connecting arm 230, a second connecting arm 250, a first limiting portion 240 and a second limiting portion 260. The cross-sectional shape of the connecting portion 220 matches the cross-sectional shape of the first segment 160, and the connecting portion 220 is provided with a connecting hole 210 corresponding to the first segment 160. The first segment 160 is penetrated in the connecting hole 210. In this way, the rotating shaft can be driven to rotate synchronously during the rotation of the rotor assembly;

[0061] The connecting portion 220 includes a first outer wall 221 and a second outer wall 222 facing each other, wherein the first outer wall 221 is the outer wall of the connecting portion 220 facing away from the first plane 161, and the second outer wall 222 is the outer wall of the connecting portion 220 facing away from the second plane 162, and the first outer wall 221 and the second outer wall 222 are respectively planar outer walls, the first limiting portion 240 is connected to the first outer wall 221 through the first connecting arm 230, and the first limiting portion 240 is arranged opposite to the first outer wall 221, and the first limiting portion 240 and the first outer wall 221 form a first winding space; the second limiting portion 260 is connected to the second outer wall 222 through the second connecting arm 250, and the second limiting portion 260 and the second outer wall 222 are arranged opposite to each other, and the second limiting portion 260 and the second outer wall 222 form a second winding space.

[0062] Optionally, the steel sheet 900 may be a silicon steel sheet or a silicon steel sheet.

[0063] The cross-sectional shape of the connecting portion 220 may be the same as the cross-sectional shape of the first segment 160 , and the size of the outer contour of the cross-sectional shape of the connecting portion 220 is larger than the cross-sectional size of the first segment 160 .

[0064] See also Figure 8 , Figure 8 The lengths of the first connecting arm 230 and the second connecting arm 250 are equal, and the length of the first connecting arm 230 forms the length of the first winding space, and the length of the second connecting arm 250 forms the length of the second winding space. Hereinafter, the length of the first connecting arm 230 and the length of the second connecting arm 250 are both referred to as the length of the winding space L. 绕线空间 .

[0065] The stator assembly includes a stator bracket 400 and a permanent magnet 500 mounted on the stator bracket 400. It should be noted that the coil 300 of the rotor assembly can also be wound on the stator assembly, and the permanent magnet 500 can be arranged on the rotor assembly, which is not limited in the present application.

[0066] Please see further Figure 6-7The motor further comprises a housing, the housing comprising a front cover 600 and a rear cover 700 connected to the front cover 600. The two ends of the rotating shaft pass through the housing. The motor further comprises two bearings 800 respectively arranged at the two ends of the rotating shaft, one of the bearings 800 is embedded in the shaft hole of the front cover 600, and the other bearing 800 is embedded in the shaft hole of the rear cover 700. The rotating shaft passes through the two shaft holes respectively and is connected to the two bearings 800.

[0067] The shaft size of existing motors (such as sonic wave motors) is relatively small. In order to change the shaft into a shaft with multiple flow channels 120, the size of the shaft needs to be increased to ensure that the flow channels 120 can pass the target amount of consumables. While increasing the size of the motor shaft, the winding space of the rotor group will inevitably be reduced.

[0068] Based on this, the present application provides a solution that can increase the size of the motor shaft without increasing the overall volume of the motor and without affecting or reducing the winding space of the rotor group: the present application improves the structure and shape of the shaft by utilizing the space in the longitudinal direction of the motor, and changes the first section 160 of the shaft into a flat tube form, so that the shaft has sufficient space to set multiple flow channels, while maintaining the original volume of the motor, increasing the winding space, and increasing the number of coil winding turns, thereby improving the motor swing amplitude, torque and other performance.

[0069] The following examples illustrate the principle and beneficial effects of the improved shaft in this application:

[0070] Assume that the dimension of the hollow shaft body 100 of the shaft in the direction from the first limiting portion 240 to the second limiting portion 260 is L 转轴 The total length of the steel sheet 900 (i.e., the length between the first limiting portion 240 and the second limiting portion 260) is L 总长 The dimension of the connecting hole 210 in the direction from the first limiting portion 240 to the second limiting portion 260 is L 穿槽 ; The lengths of the first winding space and the second winding space are both L 绕线空间 ; then L 绕线空间 =(L 总长 -L 穿槽 ) / 2.

[0071] Understandably, L 穿槽 The dimension L of the rotation shaft in the direction from the first limiting portion 240 to the second limiting portion 260 is 转轴 When the rotating shaft is a circular tube, L 转轴 The size L of the connecting hole 210 is equal to the outer diameter of the shaft. 穿槽 Equal to the L of the axis of rotation 转轴 , at this time, L 绕线空间 =(L 总长-L 转轴 ) / 2. Taking the prior art as an example, the motor shaft is a round tube, the outer diameter of the shaft is 3 mm, and the total length of the steel sheet 900 is 10 mm, the L of the steel sheet 900 is 绕线空间 =(10-3) / 2=3.5mm.

[0072] In the embodiment of the present application, in order to design two flow channels 120 in the shaft, the motor shaft needs to be increased in size, and the effective size needs to be at least 5 mm, so as to provide enough space to arrange the two flow channels 120 and ensure a certain flow rate of consumables. Taking a circular shaft as an example, when the outer diameter is 5 mm, the total length L of the steel sheet 900 is 总长 If the diameter of the steel sheet 900 is 10 mm, the winding space of the steel sheet 900 becomes (10-5) / 2=2.5 mm. Compared with the winding space of 3.5 mm, the circular motor shaft will obviously reduce the winding space, resulting in fewer turns of the coil 300, which will reduce the motor performance (such as reducing the swing and torque of the motor).

[0073] If the same winding space needs to be ensured, a larger steel sheet 900 can be used. For example, a 12 mm long steel sheet 900 can be used to ensure that the winding space of the coil 300 remains within the 3.5 mm winding space of the existing motor. However, this will increase the overall volume of the motor.

[0074] Based on this, in the embodiment of the present application, the space of the motor in the longitudinal direction is utilized, and the first segment 160 of the rotating shaft is changed into a flat tube form, even if the outer side wall of the first segment 160 is provided with a first plane 161 and a second plane 162, the first plane 161 and the second plane 162 are opposite to each other. Figure 2 As shown, in the embodiment of the present application, the first segment 160 is configured as a flat tube, so that the effective size of the flat tube (i.e. Figure 8 The longitudinal dimension shown is the long side dimension of the flat tube) L 有效 5mm, so that there is enough space to set two flow channels 120 along the long side extension direction of the flat tube. At the same time, when the first segment 160 is changed into a flat tube, the dimension of the flat tube in the direction from the first limiting portion 240 to the second limiting portion 260 is L 转轴 , then the slot size L of steel sheet 900 is 穿槽 is equal to the dimension L of the flat tube in the direction from the first limiting portion 240 to the second limiting portion 260 转轴 , L 转轴 It can be set to 2-3 mm, so that the size of the two flow channels 120 can be designed to be (1.5-2)*(2-3) mm, and a space of (1-2) mm can be reserved as the wall thickness of the flow channel, which not only meets the wall thickness requirement, but also provides enough flow channel space for the consumables to flow.绕线空间 It is 3.5 to 4 mm. Compared with the existing winding space, the improved shaft increases the winding space of the motor, which is beneficial to improving the performance of the motor.

[0075] In this embodiment, by configuring the first segment 160 of the rotating shaft as a flat tube in the direction from the first limiting portion 240 to the second limiting portion 260, it is possible to maintain the original volume of the motor and improve the motor performance while ensuring that there is sufficient space inside the hollow rotating shaft body 100 to set the flow channel 120.

[0076] The present application changes the consumable input end of the hollow shaft body 100 into a flat tube form, which can also facilitate the connection between the hollow shaft body 100 and other consumable input devices (such as the hose of a peristaltic pump) for easy assembly, and the flat tube form also facilitates the production and manufacturing of the shaft.

[0077] Optionally, the at least two flow channels 120 are arranged along the long side direction of the cross section of the first segment 160 , and the cross section is perpendicular to the first plane 161 and the second plane 162 , respectively.

[0078] Specifically, the at least two flow channels 120 are arranged along Figure 8 The longitudinal direction shown is arranged, that is, arranged along the long side extension direction of the cross section of the first segment 160, and the at least two flow channels 120 extend along the axis direction of the shaft. The cross section is perpendicular to the first plane 161 and the second plane 162 respectively, which specifically means that the cross section is a cross section of the first segment 160 perpendicular to the first plane 161 and perpendicular to the second plane 162.

[0079] See also Figure 1 The at least two flow channels 120 may be along Figure 1 The first segments 160 shown have their cross sections arranged in an aligned extension direction of their long sides.

[0080] In this embodiment, by arranging the at least two flow channels 120 along the long side extension direction of the cross section of the first segment 160 , it is beneficial to arrange more flow channels 120 in the hollow shaft body 100 , thereby improving the utilization rate of the internal space of the hollow shaft body 100 .

[0081] Optionally, the hollow shaft body 100 further includes a second segment 170 , the first end surface 130 is located at one end of the first segment 160 away from the second segment 170 , and the second end surface 140 is located at one end of the second segment 170 away from the first segment 160 ;

[0082] The outer side wall of the second segment 170 is provided with a first groove 171 and a second groove 172. The second groove 172 is located on a side of the first groove 171 away from the second end surface 140. The first groove 171 is used for clamping with an external element, such as a brush head of an electric toothbrush, a brush head of a facial cleanser, an output head or a massage head of a skin care device, etc., and the second groove 172 is used for connecting a waterproof gasket.

[0083] A connecting head 174 of the hollow shaft body 100 is formed between the first groove 171 and the second end surface 140 , and an anti-fouling plane 173 is disposed on an outer side wall of the connecting head 174 .

[0084] The cross-sectional shape of the second segment 170 may be circular or flat.

[0085] The external element may be an output component of various automatic discharging devices. For example, when the automatic discharging device is an electric toothbrush, the external element may be a brush head of the electric toothbrush. For another example, when the automatic discharging device is a skin care device, the external element may be an output head of the skin care device.

[0086] It is understandable that when the shaft is applied to an automatic discharging device, the connector 174 of the hollow shaft body 100 can be inserted into the slot of the external element, and the external element can be engaged with the first groove 171 of the hollow shaft body 100 to achieve the connection between the external element and the hollow shaft body 100, so that the hollow shaft body 100 drives the external element to operate. In addition, the automatic discharging device may further include a waterproof gasket, which may be embedded in the second groove 172, and the outer side wall of the waterproof gasket may extend to the outer side wall of the housing of the automatic discharging device to prevent water at the output head from passing through the waterproof gasket into the rear end and affecting the electrical components located at the rear end.

[0087] It can be understood that the inner wall of the above-mentioned slot of the output head can be provided with a plane matching the anti-fool plane 173. When the connecting head 174 is inserted into the slot, the anti-fool plane 173 fits with the plane of the inner wall of the slot. In this way, relative rotation between the connecting head 174 and the output head can be avoided, thereby improving the stability of the automatic discharging device.

[0088] See also Figure 6-7 , Figure 6-7 An embodiment of the present application provides a motor, which includes the rotating shaft described in the above embodiment.

[0089] In this implementation manner, since the motor includes the rotating shaft described in the above embodiment, the motor can implement various processes of the above rotating shaft and has the same beneficial effects, which will not be described again here to avoid repetition.

[0090] Optionally, the hollow shaft body 100 includes a first segment 160; and the motor further includes:

[0091] a rotor assembly mounted on the rotating shaft; and

[0092] A stator group arranged at intervals on the rotor group;

[0093] The rotor assembly includes a rotor support 200 and a coil wound on the rotor support 200 . The rotor support 200 is provided with a connecting hole 210 for mounting the rotating shaft. The shape of the connecting hole 210 matches the shape of the first segment 160 of the rotating shaft.

[0094] This implementation mode is an embodiment corresponding to the above embodiment, and its specific implementation process is the same as that of the above embodiment, and has the same beneficial effects. To avoid repetition, it will not be described again here.

[0095] Optionally, the outer side wall of the first segment 160 is provided with a first plane 161 and a second plane 162, the first plane 161 and the second plane 162 are opposite to each other, and the distance between the first plane 161 and the second plane 162 is smaller than the diameter of the hollow shaft body 100;

[0096] The motor further includes: a rotor support 200, the rotor support 200 including a connecting portion 220, a first connecting arm 230, a second connecting arm 250, a first limiting portion 240 and a second limiting portion 260, the cross-sectional shape of the connecting portion 220 matches the cross-sectional shape of the second segment 170, and the connecting portion 220 is provided with a connecting hole 210 corresponding to the second segment 170, and the second segment 170 is penetrated in the connecting hole 210;

[0097] The connecting portion 220 includes a first outer wall 221 and a second outer wall 222 facing each other, wherein the first outer wall 221 is the outer wall of the connecting portion 220 facing away from the first plane 161, and the second outer wall 222 is the outer wall of the connecting portion 220 facing away from the second plane 162, and the first outer wall 221 and the second outer wall 222 are respectively planar outer walls, the first limiting portion 240 is connected to the first outer wall 221 through the first connecting arm 230, and the first limiting portion 240 is arranged opposite to the first outer wall 221, and the first limiting portion 240 and the first outer wall 221 form a first winding space; the second limiting portion 260 is connected to the second outer wall 222 through the second connecting arm 250, and the second limiting portion 260 and the second outer wall 222 are arranged opposite to each other, and the second limiting portion 260 and the second outer wall 222 form a second winding space.

[0098] In this embodiment, by improving the structures of the hollow shaft body 100 and the rotor bracket 200, it is possible to maintain the original volume of the motor and improve the performance of the motor while ensuring that there is enough space inside the hollow shaft body 100 to set the flow channel 120.

[0099] Optionally, the connecting portion 220 also includes a third outer wall 223 and a fourth outer wall 224 opposite to each other, the third outer wall 223 and the fourth outer wall 224 are located between the first outer wall 221 and the second outer wall 222, the third outer wall 223 connects the first outer wall 221 and the second outer wall 222, and the fourth outer wall 224 connects the first outer wall 221 and the second outer wall 222, and the third outer wall 223 and the fourth outer wall 224 correspond to the same circumference.

[0100] The third outer wall 223 and the fourth outer wall 224 corresponding to the same circumference may mean that the projections of the third outer wall 223 and the fourth outer wall 224 along the axial direction of the hollow shaft body 100 are located on the same circumference. Specifically, the third outer wall 223 and the fourth outer wall 224 are partial areas of the outer side wall of the cylinder corresponding to the hollow shaft body 100.

[0101] In this embodiment, by making the third outer wall 223 and the fourth outer wall 224 correspond to the same circumference, it is helpful to increase the cross-sectional area of ​​the first segment 160, thereby facilitating the provision of more flow channels 120 and increasing the cross-sectional size of the flow channels 120.

[0102] The embodiment of the present application further provides an automatic discharging device, which includes the motor described in the above embodiment.

[0103] The present application sets the motor shaft to be hollow, providing a consumable flow channel for the consumables of the automatic discharging device, which can make the motor lightweight in design while also making reasonable and full use of the space of the motor, avoiding increasing the volume of the automatic discharging device, and is conducive to the miniaturized design of the automatic discharging device.

[0104] In this embodiment, since the automatic discharging device includes the motor described in the above embodiment, the automatic discharging device can realize each process of the above motor and has the same beneficial effects. To avoid repetition, it will not be described again here.

[0105] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A rotating shaft, characterized in that: include: A hollow rotating shaft body (100), wherein a partition (110) is provided inside the hollow rotating shaft body (100), and the partition (110) separates the internal space of the hollow rotating shaft body (100) to form at least two flow channels (120); The at least two flow channels (120) are respectively arranged along the length direction of the hollow shaft body (100); the input ends of the at least two flow channels (120) are respectively located on the first end surface (130) of the hollow shaft body (100); the second end surface (140) of the hollow shaft body (100) is provided with an opening, and the opening is respectively connected to the at least two flow channels (120).

2. The rotating shaft according to claim 1, characterized in that: A mixing flow channel communicating with the at least two flow channels (120) is also provided inside the hollow rotating shaft body (100), and the mixing flow channel is used to mix at least two consumables.

3. The rotating shaft according to claim 1, characterized in that: A one-way valve is provided in the flow channel (120), and the output end of the one-way valve faces the output end of the corresponding flow channel (120).

4. The rotating shaft according to claim 1, characterized in that: The partition (110) is embedded with a processing device, which includes at least one of the following devices: a temperature control plate, a catalytic plate with a catalyst for catalyzing the reaction of consumables, a lamp board, a radio frequency device and a microcurrent device.

5. The rotating shaft according to claim 1, characterized in that: The hollow rotating shaft body (100) comprises a first section (160), the outer side wall of the first section (160) is provided with a first plane (161) and a second plane (162), the first plane (161) and the second plane (162) are opposite to each other, and the distance between the first plane (161) and the second plane (162) is smaller than the diameter of the hollow rotating shaft body (100).

6. The rotating shaft according to claim 5, characterized in that: The at least two flow channels (120) are arranged along the long side direction of the cross section of the first segment (160), and the cross section is respectively perpendicular to the first plane (161) and the second plane (162).

7. The rotating shaft according to claim 5, characterized in that: The hollow shaft body (100) further comprises a second segment (170), the first end surface (130) is located at an end of the first segment (160) away from the second segment (170), and the second end surface (140) is located at an end of the second segment (170) away from the first segment (160); The outer side wall of the second segment (170) is provided with a first groove (171) and a second groove (172), wherein the second groove (172) is located on a side of the first groove (171) away from the second end surface (140), the first groove (171) is used for clamping with an external element, and the second groove (172) is used for connecting a waterproof gasket; A connecting head (174) of the hollow shaft body (100) is formed between the first groove (171) and the second end surface (140), and an anti-fouling plane (173) is provided on the outer side wall of the connecting head (174).

8. A motor, characterized in that: A rotating shaft comprising any one of claims 1 to 7.

9. The motor according to claim 8, characterized in that The hollow shaft body (100) comprises a first segment (160); the motor further comprises: a rotor assembly mounted on the rotating shaft; and A stator group arranged at intervals on the rotor group; The rotor assembly comprises a rotor support (200) and a coil wound on the rotor support (200); the rotor support (200) is provided with a connecting hole (210) for mounting the rotating shaft; the shape of the connecting hole (210) matches the shape of the first segment (160) of the rotating shaft.

10. An automatic discharging device, characterized in that: Comprising the motor described in claim 8 or 9.

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