Self-cleaning dental handpiece tube
The self-cleaning dental handpiece tube driven by the excitation jacket and dielectric source solves the problem of internal wall contamination of the dental handpiece tube, achieving effective cleaning and disinfection and preventing cross-infection.
Patent Information
- Application Number
- CN202511461492.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2025-11-28
AI Technical Summary
Dental handpieces are prone to backflow of residual saliva, blood, and pathogens during use, leading to cross-infection. Existing cleaning methods cannot effectively remove biofilm contamination from the inner wall.
Design a self-cleaning dental handpiece tube that uses an excitation jacket and a medium source to drive the cleaning component to rotate, combined with bristles to clean the inner wall, and can be sterilized with an ultraviolet lamp.
It achieves self-cleaning and disinfection of the inner wall of the dental handpiece tube, preventing cross-infection and improving cleaning efficiency and safety.
Smart Images
Figure CN121015340A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of medical devices, and in particular to a self-cleaning dental handpiece tube. BACKGROUND
[0002] A dental handpiece is a medical device connected to a dental chair, and is a precision instrument most commonly used in clinical treatment of stomatology. The internal structure of the dental handpiece is small and complex. The dental handpiece can spray liquid to assist treatment when in use. The dental handpiece is connected to the dental chair through a waterway pipeline of a handpiece tube. However, the dental handpiece is prone to back suction during use. The back suction contains residual saliva, blood, pathogenic microorganisms and the like, which not only pollutes the built-in water source of the dental chair, but also forms a biofilm on the inner wall of the handpiece tube to pollute the waterway pipeline. These contaminations can cause cross-infection between patients and between doctors and patients.
[0003] In clinical operations, there is no special tool for cleaning the handpiece pipeline. Most medical staff use the water injection method to repeatedly flush, but this method cannot effectively remove the biofilm formed on the inner wall of the handpiece tube. Therefore, a self-cleaning dental handpiece tube is urgently needed in the art. SUMMARY
[0004] In order to realize the self-cleaning of the inner wall of the handpiece tube, the present application provides a self-cleaning dental handpiece tube, which comprises: a tube body comprising a first end and a second end; a cleaning piece configured with a cylindrical base and bristles arranged on the periphery of the base, the outer diameter of the bristles being configured to form an interference fit with the inner diameter of the tube body when the cleaning piece enters the tube body; a self-driving assembly comprising a power source and a driven piece, the driven piece being arranged on the cylindrical base; after the cleaning piece enters the tube body, the power source drives the cylindrical base to rotate around the axis of the tube body and move from the first end to the second end through the driven piece, and the bristles follow the cylindrical base to clean the inner wall of the tube body.
[0005] In one or more embodiments, the power source comprises: an excitation interlayer arranged in the tube wall of the tube body and composed of a plurality of excitation coils distributed in a spiral along the axial direction of the tube body, the plurality of excitation coils forming at least two pairs of magnetic poles in the circumferential direction of each predetermined length of the tube wall, and the two pairs of magnetic poles being arranged in a staggered manner.
[0006] In one or more embodiments, the plurality of excitation coils are wound by a plurality of electric wires, the number of the plurality of electric wires corresponds to the number of magnetic poles in the at least two pairs of magnetic poles, and a plurality of first excitation coils wound by the same wire in series are arranged in a staggered manner at 180° to form a spiral distribution, and a plurality of second excitation coils wound by another wire in series corresponding to the magnetic pole pair of the same wire are arranged opposite to the plurality of first excitation coils to form a spiral distribution.
[0007] In one or more embodiments, the excitation coil is a rhombus, and a projection distance d of an effective side of the excitation coil satisfies the following formula: ; wherein D is a circumferential diameter of the layer where the excitation coil is located.
[0008] In one or more embodiments, the driven member includes at least one pair of two magnetic poles with opposite polarities, which are symmetrically arranged in the circumferential direction of the cylindrical base.
[0009] In one or more embodiments, the driven member further includes a turbine blade fixed at the axis of the cylindrical base.
[0010] In one or more embodiments, the self-cleaning dental handpiece tube further includes an excitation controller electrically connected with the plurality of electric leads respectively, for controlling the on-off of the plurality of electric leads and the direction of the on-off current.
[0011] In one or more embodiments, the excitation controller includes a voltage transformation module configured to input a power frequency voltage and transform it into a preset voltage; a rectification module configured to obtain the output of the voltage transformation module and inversely transform the preset voltage into a direct current voltage; an inversion module configured to obtain the output of the rectification module and process the direct current voltage into a sinusoidal alternating current signal with a preset frequency and a preset amplitude; and a phase shift module configured to obtain the output of the inversion module and perform phase shift on the sinusoidal alternating current signal to obtain a plurality of sinusoidal alternating current signals with different phases and output them to corresponding electric leads.
[0012] In one or more embodiments, the power source includes a pressure generating device, the pressure generating device includes a medium source that enters the tube body after being output from the pressure generating device and can push the cleaning member to move in the axial direction within the tube body; the driven member includes a turbine blade fixed between the central chamber inside the cylindrical base and the inner wall of the cylindrical base; and the pressure of the medium source drives the turbine blade to rotate and in turn drives the cylindrical base to rotate when the medium source moves in the axial direction within the tube body.
[0013] In one or more embodiments, the medium source is a liquid or a gas.
[0014] In one or more embodiments, the self-cleaning dental handpiece tube further includes a pair of magnetic poles symmetrically arranged in the axial direction outside the tube body, a power generation assembly arranged inside the central chamber, and an ultraviolet lamp electrically connected with the power generation assembly; wherein the pair of magnetic poles cooperate with the power generation assembly to generate electricity under the action of the medium source.
[0015] In one or more embodiments, the power generation assembly comprises: a rotor winding disposed in the central chamber of the cylindrical base; and a storage circuit electrically connected to the output of the rotor winding for selectively receiving alternating current from the rotor winding and storing energy, and powering the ultraviolet lamp.
[0016] In one or more embodiments, the storage circuit comprises: at least one storage capacitor, wherein the positive and negative poles of the storage capacitor are electrically connected to the output of the rotor winding, respectively; and a current-limiting diode coupled between the positive and negative poles of the at least one storage capacitor and the output of the rotor winding.
[0017] In one or more embodiments, the rotor winding comprises a plurality of phase winding coils, each winding coil is provided with at least one set of output, the one or more storage capacitors are coupled in parallel between the outputs of each winding coil, and the current-limiting diode is coupled between the positive and negative poles of the at least one storage capacitor and the outputs of each winding coil.
[0018] In one or more embodiments, the power generation assembly further comprises a centrifugal switch provided for the winding coil of each phase of the rotor winding, and the centrifugal switch comprises: an elastic member electrically connected to one end of the corresponding winding coil; a contact member electrically connected to the elastic member for deforming the elastic member under centrifugal action; and an output terminal electrically connected to the contact member in a contact manner.
[0019] The beneficial effects of the present application include that the present application can drive the cleaning member to move axially along the pipe shaft of the mobile phone while rotating by the excitation magnetic field or medium source, so as to remove the biological mucosa and other impurities on the inner wall of the pipe body. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0021] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a self-cleaning mobile phone pipe according to an embodiment of the present application; Figure 2 FIG. 2 is a schematic diagram of the change of the magnetic field intensity of each magnetic pole in the excitation control according to an embodiment of the present application; Figure 3 FIG. 3 is a schematic diagram of the arrangement of the excitation coil according to an embodiment of the present application. Figure 4 A schematic diagram of a winding scene of an excitation coil of an embodiment of the present application; Figure 5 A schematic diagram of a first structure of a cylindrical base of an embodiment of the present application; Figure 6 A schematic diagram of a structure of a cleaning piece of an embodiment of the present application; Figure 7 A schematic diagram of a structure of a cylindrical base provided with turbine blades of an embodiment of the present application; Figure 8 A schematic diagram of an explosion of a power generation assembly of an embodiment of the present application; Figure 9 A schematic diagram of a structure of a rotor winding of an embodiment of the present application; Figure 10 A schematic diagram of a structure of a centrifugal switch of an embodiment of the present application.
[0022] Reference signs: 100-tube body, 200-cleaning piece, 210-cylindrical base, 220-bristles, 300-self-driving assembly, 310-power source, 320-driven piece, 10-turbine blade, 20-central chamber, 30-power generation assembly, 31-rotor winding, 32-energy storage circuit, 40-ultraviolet lamp, 50-centrifugal switch, 51-elastic piece, 52-contact piece, 53-output terminal. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the present application clearer and more apparent, the embodiments of the present application are further described in detail below with reference to the accompanying drawings.
[0024] As shown in Figure 1 and Figure 2 The present application proposes a self-cleaning dental handpiece tube, comprising: a tube body 100, the tube body 100 comprising a first end and a second end; a cleaning piece 200, configured with a cylindrical base 210 and bristles 220 configured on the periphery of the base, the outer diameter of the bristles 220 being configured to form an interference fit with the inner diameter of the tube when the cleaning piece 200 enters the tube 100; a self-driving assembly 300, comprising a power source 310 and a driven piece 320, the driven piece 320 being configured on the cylindrical base 300; after the cleaning piece 200 enters the tube 100, the power source 310 drives the cylindrical base 200 to rotate around the axis of the tube 100 and moves from the first end to the second end through the driven piece 320, and the bristles 220 follow the cylindrical base 200 to clean the inner wall of the tube 100.
[0025] The pipe body 100 in the embodiment is the main body of the mobile phone pipe, and the cleaning member 200 is detachably arranged in the pipe body 100. The cleaning member 200 is provided with the driven member 320. The driven member 320 is used to drive the cleaning member 200 to rotate and move along the axial direction of the pipe body 100 under the driving of the power source.
[0026] In one embodiment, as shown in Figure 3 The power source 310 includes an excitation sandwich layer arranged in the pipe wall of the pipe body 100 and composed of a plurality of excitation coils distributed in a helical manner along the axial direction of the pipe body 100. The plurality of excitation coils form at least two pairs of magnetic poles in the circumferential direction of each predetermined length of the pipe wall, and the two pairs of magnetic poles are arranged in a staggered manner.
[0027] Specifically, the excitation sandwich layer is used to generate a rotating forward magnetic field. The excitation sandwich layer is composed of a plurality of excitation coils distributed in a helical manner along the axial direction of the pipe body 100. The plurality of excitation coils form at least two pairs of magnetic poles in the circumferential direction of each length of the pipe wall, as shown in Figure 3 The first excitation coil and the second excitation coil form a first pair of magnetic poles, and the third excitation coil and the fourth excitation coil form a second pair of magnetic poles and are arranged in a staggered manner with the first excitation coil and the second excitation coil. The cylindrical base 210 is in a cylindrical shape, and a pair of magnetic poles 320 are uniformly arranged on the circumferential surface of the cylindrical base 210. The cylindrical base 210 is driven by the rotating forward magnetic field generated by the excitation sandwich layer to move with the cylindrical base 210, so that the cleaning member 200 moves forward or backward along the axial direction of the pipe body 100, thereby realizing the brushing of the inside of the mobile phone pipe. In this process, cleaning fluid or disinfecting fluid can be injected into the mobile phone pipe for flushing / disinfecting, thereby realizing the thorough cleaning of the inner wall of the mobile phone pipe.
[0028] In one embodiment, in order to generate a rotating forward magnetic field, the plurality of excitation coils in the embodiment are wound by a plurality of electric wires. The number of the plurality of electric wires corresponds to the number of magnetic poles in the at least two pairs of magnetic poles, and a plurality of first excitation coils wound by the same wire in series are arranged in a staggered manner at 180° to form a helical distribution. Another wire electrically connected to the same wire to form a pair of magnetic poles is wound in series to form a plurality of second excitation coils, which are arranged opposite to the plurality of first excitation coils to form a helical distribution. It should be noted that the electric wires used to wind the excitation coils all have an insulating layer.
[0029] In this embodiment, multiple first excitation coils wound from the same conductor form the same polarity N, and multiple second excitation coils wound from another conductor form the same polarity S. Together, they form a pair of spirally advancing magnetic poles. During use, AC signals of the same amplitude but opposite directions are simultaneously applied to the conductors corresponding to the first and second excitation coils, causing the first or second excitation coil on each conductor to alternately generate N and S polarities. That is, the AC signals on the conductors corresponding to the same pair of magnetic poles have a phase deviation of 180°. During the process where the signal amplitude on the conductors corresponding to the pair of magnetic poles drops to 0, the signal amplitude on the conductors used to form adjacent magnetic poles reaches its maximum, that is, the phase lags behind the AC signal on the previous magnetic pole by 90°, thereby achieving lateral attraction to the cylindrical base and causing it to advance during rotation. It should be noted that the phase difference between adjacent magnetic poles is related to the number of magnetic pole pairs, so the 90° lag mentioned above does not limit the technical solution of this application. The magnetic control process for generating the rotating and advancing magnetic field in this embodiment is as follows: Figure 4 As shown, the first excitation coil, the second excitation coil, the third excitation coil, and the fourth excitation coil each correspond to an electrical conductor. At time T1, the first excitation coil generates N polarity and the second excitation coil generates S polarity. During the transition from T1 to T2, the magnetic field strength on the first and second excitation coils weakens, while the magnetic field strength on adjacent magnetic pole pairs (i.e., the third and fourth excitation coils) strengthens, thereby generating a lateral attraction on the driven component 320. Since the third and fourth excitation coils are axially misaligned with the first and second excitation coils, the driven component 320 will deflect and move forward simultaneously, achieving a full rotation and advancing a preset distance at time T3. The above process is repeated sequentially, allowing the cleaning component 200 to rotate and move forward inside the tube, thus enabling the cleaning component on the excitation cylindrical base to clean the inside of the tube.
[0030] Specifically, such as Figure 5 As shown, the first and second excitation coils are 180° out of phase, the third and fourth excitation coils are 180° out of phase, the first and third excitation coils are 90° out of phase, and their axial phases differ by a preset misalignment step S. The second and fourth excitation coils are also 90° out of phase, and their axial phases differ by a preset misalignment step S. The scenario is illustrated as follows. Figure 3 As shown.
[0031] In one embodiment, the self-cleaning dental handpiece tube of the present invention further includes: an excitation controller (not shown), which is electrically connected to multiple electrical wires and is used to control the conduction and current direction of the multiple electrical wires.
[0032] In one embodiment, the excitation controller further comprises: a voltage transformation module configured to input a power frequency voltage and transform the power frequency voltage into a preset voltage; a rectification module configured to obtain the output of the voltage transformation module and inversely transform the preset voltage into a direct current voltage; an inversion module configured to obtain the output of the rectification module and process the direct current voltage into a sine alternating current signal of a preset frequency and a preset amplitude; and a phase shift module configured to obtain the output of the inversion module and shift the phase of the sine alternating current signal to obtain a plurality of sine alternating current signals of different phases and output the plurality of sine alternating current signals of different phases to corresponding electric wires.
[0033] Specifically, the voltage transformation module in the embodiment is configured to reduce the power frequency voltage to a safe voltage, the inversion module is configured to facilitate changing the frequency of the sine alternating current signal for excitation to control the rotating speed of the cylindrical base, the phase shift module is configured to control the strength of the magnetic field of each magnetic pole pair to form a rotating magnetic field, and the staggered design of the excitation coil is configured to ensure the advancement or retreat of the cylindrical base along the axial direction of the pipe body 100 during rotation.
[0034] In one embodiment, the cleaning member 200 comprises: a cylindrical base 210 which is non-magnetic and non-magnetizable, the cylindrical base 210 being symmetrically provided with one or more pairs of grooves for arranging a plurality of strip-shaped curved magnetic poles 320, the thickness of the plurality of strip-shaped curved magnetic poles 320 being equal to or greater than the groove depth of the plurality of pairs of grooves.
[0035] In another optional embodiment, the cylindrical base 210 is made of plastic and is symmetrically provided with a plurality of groups of grooves for arranging a plurality of pairs of strip-shaped curved magnetic poles 320.
[0036] In one embodiment, the turbine fan blade is further arranged at the center of the cylindrical base 210. Specifically, the rotation of the driven member 320 in the foregoing embodiment is mainly achieved by active excitation control, which has the advantages of strong controllability, uniform rotation and controllable rotating speed, and is suitable for regular cleaning. In the present embodiment, since the pipe body is provided with a metal interlayer (excitation coil) and the cylindrical base 210 is provided with magnetic poles, when the cylindrical base 210 moves axially in the pipe body 100 due to water impact, the magnetic field generated by the cylindrical base 210 will cut the effective edge of the excitation coil to generate a Lorentz force, which will hinder the movement of the cylindrical base 210. On this basis, the turbine fan blade is arranged at the center of the cylindrical base 210, so that the resistance of the Lorentz force can control the advancing speed of the cylindrical base 210 and the turbine fan blade can make the cylindrical base 210 rotate, which can be used for daily maintenance.
[0037] In one embodiment, the excitation coil in the present application is in the shape of a rhombus, and the projection distance d of the effective edge of the excitation coil satisfies the following formula: Formula One In the formula, D is the circumferential diameter of the interlayer where the excitation coil is arranged.
[0038] Specifically, the reason for designing the excitation coil in a rhombus shape is to facilitate control of the magnetic field range, and moreover, since the excitation coil is laid on a circumference, the effective margin of one excitation coil is best when the above formula is met, and the utilization rate is judged by the ratio of the unfolded area of the excitation coil to the effective area of the magnetic field formed after it is laid, and the larger the ratio, the higher the utilization rate.
[0039] In one embodiment, the length of the strip-shaped curved pole is greater than the length of the excitation coil and less than 1-1.2 times the length of the excitation coil. Specifically, the design of this embodiment helps the excitation coil to be attracted more easily, thereby completing the axial movement.
[0040] In one embodiment, as shown in Figure 6 The cleaning member 200 further comprises an elastic band for planting the bristles, and hooks are arranged at both ends of the elastic band, which are detachably hung on both ends of the cylindrical base and are elastically tightened.
[0041] In addition, it should be noted that the cylindrical base 210 of the present application can be removed from the tube before dental surgery, and for this purpose, in an alternative embodiment, the tube 100 is further provided with a detachable plug for taking out the driven member 320 or replacing the bristles.
[0042] In the above embodiment, the brush head is driven to rotate forward by a rotating forward magnetic field (i.e., a rotating-in magnetic field) as a motor rotor, thereby realizing brushing of the inner wall of the tube; in the second aspect of the present application, a way of driving the brush head to rotate forward by a medium source (such as water) is also proposed, and the specific structure is as follows: The tube 100 comprises a first end and a second end; the cleaning member 200 is configured with a cylindrical base 210 and bristles 220 arranged on the periphery of the base, and the outer diameter of the bristles 220 is configured to form an interference fit with the inner diameter of the tube when the cleaning member 200 enters the tube 100; the self-driving assembly 300 comprises a power source 310 and a driven member 320, and the driven member 320 is arranged on the cylindrical base 300; after the cleaning member 200 enters the tube 100, the power source 310 drives the cylindrical base 200 to rotate around the axis of the tube 100 and moves from the first end to the second end through the driven member 320, and the bristles 220 follow the cylindrical base 200 to clean the inner wall of the tube 100.
[0043] In one embodiment, the power source comprises a pressure generating device, and the pressure generating device comprises: a medium source, which enters the tube after being output from the pressure generating device and can push the cleaning member to move in the axial direction in the tube; the driven member comprises a turbine blade 10, as shown in Figure 7As shown, the turbine fan 10 is fixed between the central chamber 20 inside the cylindrical base 210 and the inner wall of the cylindrical base 210; the medium source is provided with a pressure drive turbine fan which rotates when the medium source moves along the axial direction in the tube body, thereby driving the cylindrical base to rotate and advance.
[0044] In one embodiment, the medium source is a liquid or a gas. The liquid includes tap water, purified water, distilled water, and disinfectant liquid, and the gas includes carbon dioxide, nitrogen, oxygen, and other harmless gases.
[0045] In one embodiment, as shown, the self-cleaning dental handpiece tube in the embodiment further includes: a pair of magnetic poles symmetrically arranged on the outer side of the tube body in the axial direction; a power generation assembly 30 arranged inside the central chamber 20; and an ultraviolet lamp 40 electrically connected to the power generation assembly 30; wherein the pair of magnetic poles symmetrically arranged on the outer side of the tube body cooperate with the power generation assembly 30 to generate electricity under the action of the medium source. Figure 8
[0046] Specifically, the pair of magnetic poles symmetrically arranged on the outer side of the tube body adopts flexible magnetic poles and is attached to the axial sides of the handpiece tube, thereby providing a directional magnetic field, and the power generation assembly 30 in the cylindrical base 210 cuts the magnetic induction lines when rotating to generate electricity by itself and supply power to the ultraviolet lamp. The embodiment can realize brushing and ultraviolet sterilization of the inner wall of the handpiece tube at the same time.
[0047] In one embodiment, as shown in Figure 8 , the power generation assembly 30 includes: a rotor winding 31 arranged in the central chamber 20 of the cylindrical base 210; and an energy storage circuit 32 electrically connected to the output end of the rotor winding 31, used for selectively receiving alternating current from the rotor winding 31 and storing energy, and supplying power to the ultraviolet lamp 40.
[0048] In one embodiment, the energy storage circuit 32 includes: at least one energy storage capacitor, wherein the positive and negative poles of the energy storage capacitor are respectively electrically connected to the output end of the rotor winding; and a current-limiting diode coupled between the positive and negative poles of the at least one energy storage capacitor and the output end of the rotor winding.
[0049] In one embodiment, the rotor winding 31 includes a plurality of phase winding coils, each winding coil is provided with at least one set of output end, one or more energy storage capacitors are coupled in parallel between the output ends of each winding coil, and a current-limiting diode is coupled between the positive and negative poles of the at least one energy storage capacitor and the output end of each winding coil.
[0050] Specifically, as shown in Figure 9 As shown, in order to ensure the stability of the energy storage capacitor output, a plurality of output terminals can be provided for the rotor winding, such as 1, 2, 3, and 4, wherein the same number represents a group, and each group of output terminals is electrically connected to the winding coil of different phases, for charging one or more energy storage capacitors at different times. It should be noted that the output terminals 1, 2, 3, and 4 in the embodiment are only provided on the core and are not in conductive connection with the winding core, and the setting mode can adopt a plastic snap ring or the like.
[0051] In one embodiment, as shown in FIG. 1, the power generation assembly 30 further comprises a centrifugal switch 50 provided for the winding coil of each phase of the rotor winding, and the centrifugal switch 50 comprises: an elastic member 51 electrically connected to one end of the corresponding winding coil; a contact member 52 electrically connected to the elastic member 51, for deforming the elastic member 51 under centrifugal action; and an output terminal 53 in conductive connection with the contact member 52 in a contact manner. Figure 10
[0052] Compared with the previous mode of being driven by a rotating magnetic field, the embodiment does not need to supply power to the cell tube, and can generate electricity by itself using the kinetic energy of the medium and provide the ultraviolet lamp for disinfection.
[0053] Through the structural design and circuit design in the above embodiments, the present application can drive the cleaning member to rotate and move axially along the cell tube by the excitation magnetic field or the water flow, so as to remove the biological mucosa and other impurities on the inner wall of the tube body.
[0054] The above embodiment serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. It should be understood by those skilled in the art that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A self-cleaning dental handpiece tube, characterized in that, include: A tube body, the tube body comprising a first end and a second end; A cleaning component is provided with a cylindrical base and bristles disposed around the periphery of the base, wherein the outer diameter of the bristles is configured to form an interference fit with the inner diameter of the tube when the cleaning component enters the tube. The self-driven assembly includes a power source and a driven component, the driven component being disposed on the cylindrical base; after the cleaning component enters the tube, the power source drives the cylindrical base to rotate around the axis of the tube and move from the first end to the second end through the driven component, and the bristles follow the cylindrical base to clean the inner wall of the tube.
2. The self-cleaning dental handpiece tube according to claim 1, characterized in that, The power source includes an excitation jacket, which is disposed inside the tube wall of the tube body and is composed of a plurality of excitation coils that are spirally distributed along the axial direction of the tube body. The plurality of excitation coils form at least two pairs of magnetic poles in the circumferential direction of each predetermined length of tube wall, and the two pairs of magnetic poles are staggered.
3. The self-cleaning dental handpiece tube according to claim 2, characterized in that, The plurality of excitation coils are wound from multiple electrical wires, the number of which corresponds to the number of magnetic poles in the at least two pairs of magnetic poles. The plurality of first excitation coils, which are wound in series with the same electrical wire, are arranged at 180° to each other and are completely staggered to form a spiral distribution. The plurality of second excitation coils, which are wound in series with another electrical wire that cooperates with the aforementioned electrical wire to form a pair of magnetic poles, are arranged opposite to the plurality of first excitation coils to form a spiral distribution.
4. The self-cleaning dental handpiece tube according to claim 3, characterized in that, The excitation coil is rhomboid in shape, and the projected distance d of the effective side distance of the excitation coil satisfies the following formula: ； Wherein, D is the circumferential diameter of the interlayer where the excitation coil is located.
5. The self-cleaning dental handpiece tube according to claim 2, characterized in that, The driven component includes at least one pair of magnetic poles with opposite polarities, the two magnetic poles being symmetrically arranged circumferentially on the cylindrical base.
6. The self-cleaning dental handpiece tube according to claim 5, characterized in that, The driven component further includes a turbine blade, which is fixed at the axis of the cylindrical base.
7. The self-cleaning dental handpiece tube according to claim 3, characterized in that, Also includes: An excitation controller is electrically connected to the multiple electrical wires and is used to control the conduction, disconnection, and direction of the conduction current of the multiple electrical wires.
8. The self-cleaning dental handpiece tube according to claim 7, characterized in that, The excitation controller includes: The transformer module is configured to take in power frequency voltage and transform it to a preset voltage. The rectifier module is configured to acquire the output of the transformer module and invert the preset voltage into a DC voltage; An inverter module is configured to acquire the output of the rectifier module and process the DC voltage into a sinusoidal AC signal with a preset frequency and a preset amplitude. The phase-shifting module is configured to acquire the output of the inverter module and shift the phase of the sinusoidal AC signal to obtain multiple sinusoidal AC signals with different phases and output them to the corresponding conductors.
9. The self-cleaning dental handpiece tube according to claim 1, characterized in that, The power source includes a pressure generating device, which comprises: The medium source, after being output from the pressure generating device, enters the pipe body and can push the cleaning component to move along the axial direction within the pipe body; The driven component includes a turbine blade, which is fixed between the central chamber inside the cylindrical base and the inner wall of the cylindrical base; when the medium source moves along the axial direction inside the tube, the pressure it exerts drives the turbine blade to rotate, thereby causing the cylindrical base to rotate.
10. The self-cleaning dental handpiece tube according to claim 9, characterized in that, The medium source is a liquid or a gas.
11. The self-cleaning dental handpiece tube according to claim 9, characterized in that, Also includes: Magnetic pole pairs symmetrically arranged along the axial direction on the outside of the tube body; A power generation component is installed inside the central cavity; as well as An ultraviolet lamp electrically connected to the power generation component; The magnetic pole pair, in conjunction with the power generation component, rotates to generate electricity under the action of a dielectric source.
12. The self-cleaning dental handpiece tube according to claim 11, characterized in that, The power generation components include: A rotor winding is disposed within the central cavity of the cylindrical base; An energy storage circuit, electrically connected to the output terminal of the rotor winding, is used to selectively receive and store AC power from the rotor winding and to power the ultraviolet lamp.
13. The self-cleaning dental handpiece tube according to claim 12, characterized in that, The energy storage circuit includes: At least one energy storage capacitor, wherein the positive and negative terminals of the energy storage capacitor are electrically connected to the output terminals of the rotor winding, respectively; and A current-limiting diode is coupled between the positive and negative terminals of the at least one energy storage capacitor and the output terminal of the rotor winding.
14. The self-cleaning dental handpiece tube according to claim 13, characterized in that, The rotor winding includes multiple phase winding coils, each winding coil having at least one set of output terminals, the one or more energy storage capacitors being coupled in parallel between the output terminals of each winding coil, and the current-limiting diode being coupled between the positive and negative terminals of the at least one energy storage capacitor and the output terminal of each winding coil.
15. The self-cleaning dental handpiece tube according to claim 14, characterized in that, The power generation assembly also includes a centrifugal switch for the winding coils on each phase of the rotor winding, the centrifugal switch comprising: An elastic element, wherein the elastic element is electrically connected to one end of a corresponding winding coil; A contact element, which is electrically connected to the elastic element, is used to cause the elastic element to deform under centrifugal force; The output terminal is electrically connected to the contact in a contact manner.