WO2010135992A1

WO2010135992A1 - Turbine hand drill in dentistry

Info

Publication number: WO2010135992A1
Application number: PCT/CN2010/073256
Authority: WO
Inventors: 张卫星; 刘晓霞
Original assignee: 郑州泽正技术服务有限公司
Priority date: 2009-05-26
Filing date: 2010-05-26
Publication date: 2010-12-02
Also published as: CN201481569U

Abstract

A turbine hand drill in dentistry includes a head shell and a core. The head shell is provided with a socket for drill bit. The core includes a turbine (3) and a turbine shaft (7). Outside the socket for drill bit, an LED (5) connected with a power supply, mounted in the head shell, is provided. A generator which supplies power to light source is merely formed by way of adding an induction coil (4) in the original head. An LED (5) filament includes at least two parallel light emitting diode arrays in counter conducting directions. The filaments are arranged in a loop. A check valve (14) is mounted on an outlet passage, and it is used as a power switch. The turbine shaft (7) is a magnetic bearing. The turbine (3) is made from magnetically permeable material.

Description

Dental turbine hand drill

Technical field

The present invention relates to a dental cutting device.

Background technique

In general, a handpiece for a dental air-cutting device has a head portion at its tip end and a member having a necessary cutting tool in the head portion. The rotor shaft holding the cutting tool, the two bearings supporting the rotary shaft, and the impeller disposed between the two bearing portions are housed inside the head to supply a high voltage from the air supply passage disposed in the clamp portion of the handpiece. The air impinges on the impeller to cause the cutting tool to rotate. However, in the air type cutting device having such a configuration, since the head extends into the entrance cavity, the light is easily blocked, resulting in inconvenience in operation, the existing hand-held drill with light, the light cannot be directly directed to the drill bit, and the anti-back suction device is complicated, the magnetic bearing Repulsive force is small.

Summary of the invention

The first object of the present invention is to provide a light source that is unobstructed at the drill bit, the second is to use a magnet turbine to form a generator to supply power to the light source, the third is to use a battery as a light source to supply power, the fourth is to prevent back suction, and the fifth is to provide a magnetic bearing to reduce Energy loss.

The present invention is achieved by a dental turbine hand drill comprising a nose shell and a movement, the nose shell being provided with a drill socket, the movement comprising a turbine and a turbine shaft, characterized by: an external portion of the drill socket Set the LED light, and the LED light is connected to the power supply provided in the head housing.

The dental turbine handheld drill is characterized in that: the power source is a micro-generator, the turbine in the head is a magnet turbine, the magnet turbine is fixed outside the coil, and constitutes a generator; the generator is connected to the LED lamp, and the head casing is plastic.

The dental turbine hand drill is characterized in that: the axial direction of the coil is perpendicular to the axial direction of the magnet turbine, and the direction of the central magnetic field line in the turbine is perpendicular to the axial direction of the magnet turbine. The dental turbine hand drill is characterized in that: the magnet turbine is a three-layer superposition, and the three-layer magnet turbine constitutes a Halbach array.

The dental turbine hand drill is characterized in that: the material of the magnet turbine is a plastic magnetic material. The dental turbine hand drill is characterized in that: the axial direction of the coil is parallel to the axial direction of the magnet turbine.

The dental turbine hand drill is characterized in that: the coils are at least two, disposed on the same plane.

The dental turbine hand held drill is characterized in that: the shaft of the coil coincides with the shaft of the magnet turbine, and the magnet turbine and the coil constitute a component of the claw pole generator.

The dental turbine handheld drill is characterized in that: the coil of the claw pole generator is placed on one side of the upper and lower sides of the magnet turbine, and the upper and lower sides of the coil are respectively disposed with the cross claw chip, and the two claw chips The center is connected.

The dental turbine hand drill is characterized in that: the coil is a metal foil placed between two bearings in the handpiece.

The dental turbine hand drill is characterized in that: the filament of the LED lamp is disposed around the axis of the magnet turbine.

The dental turbine hand drill is characterized in that: the filament of the LED lamp comprises at least two sets of LED arrays having opposite conduction directions in parallel.

The dental turbine handheld drill is characterized in that: the power source is a micro-generator, and the turbine is a guide The magnetic material sequentially fixes the coil and the magnetic ring along both sides of the turbine axial turbine, and the two magnetic rings 10 are aligned along the magnetic direction of the turbine shaft to constitute a generator.

The dental turbine hand-held drill is characterized in that: the magnetic ring has three layers of an inner magnetic ring, a middle magnetic ring and an outer magnetic ring in order from inner to outer, and the three-layer magnetic ring constitutes a Halbach array.

The dental turbine hand-held drill is characterized in that: the magnetic ring is a magnetic bearing, the magnetic bearing is composed of a dynamic magnetic ring and a static magnetic ring that are sleeved together, and the outer surface of the dynamic magnetic ring is a conical sun surface, and the static magnetic ring The inner surface is a conical negative surface that cooperates with the outer surface of the dynamic magnetic ring 11. The dynamic magnetic ring and the static magnetic ring are respectively Halbach arrays, and the two rings repel each other to form a magnetic bearing.

The dental turbine hand drill is characterized in that: the turbine shaft, the turbine, and the nose shell are iron. The dental turbine hand drill is characterized in that: the turbine, the turbine shaft, and the nose shell are magnets. The dental turbine hand drill is characterized in that: the power source is a ring battery.

The dental turbine hand drill is characterized in that: the annular battery is a laminated battery.

The dental turbine hand drill is characterized in that: the electrolyte of the annular laminated battery is an edible material.

The dental turbine hand drill is characterized in that: a one-way valve is arranged on an air outlet passage outside the turbine shaft. The dental turbine handheld drill is characterized in that: the one-way valve is an elastic membrane, the outer circumference of the elastic membrane is fixed in the machine head, the elastic membrane is provided with a central hole, the diameter of the central hole is smaller than the diameter of the turbine shaft, and the turbine shaft passes through the center The hole, the elastic membrane is wrapped on the turbine shaft.

The dental turbine hand-held drill is characterized in that: the outer circumference of the elastic film is thick, gradually thinner toward the center, and the upper and lower sides of the elastic film form an angle, and a part of the surface of the elastic film is separated from the inner part of the head in a natural state, and the air is discharged. In contact with the inner part of the handpiece, a contact switch is provided between the portion of the surface of the elastic film and the portion of the surface of the elastic film that is in contact with the inner member of the handpiece. The magnetic conductive material may be a plastic magnetic conductive material. The coils may each be a metal foil or made of a metal foil.

In the present invention, since the head is used as a part of the generator, the induction coil is only added to the original organic head, and the generator is used to supply power to the light source. Furthermore, the filament of the LED lamp includes at least two sets of LED arrays having opposite conduction directions in parallel. It is the LED array method of the patent No. 200510020493. No need to drive circuit and switching power supply, etc., to solve the problem that the circuit can not be set in the machine head. Using the patent of 200510020493. 6 to arrange the filaments in a circular shape, so that the light at the drill bit is unobstructed. The power supply uses the battery, the cost is low, suitable for single use, set the check valve, prevent the dirt from sucking back, avoid cross infection, and the check valve is used as the switch of the battery power, and the magnetic bearing can be set. It is a plastic magnetically permeable material that is easy to form.

DRAWINGS

Figure 1 is a schematic cross-sectional view of the present invention;

Figure 2 is a schematic cross-sectional view of the machine head;

Figure 3 is a schematic cross-sectional view along Figure 1AA;

Figure 4 is a cross-sectional view of the Halbach array of the three-layer magnet turbine in the head; Figure 5 is a schematic cross-sectional view of the two coils in the head;

Figure 6 is a schematic cross-sectional view showing the structure of the claw pole generator;

Figure 7 is a cross-sectional view showing the structure of the claw pole generator outside the bearing;

Figure 8 is a schematic cross-sectional view of a generator blade of a ferrous iron;

Figure 9 is a schematic cross-sectional structural view of a generator of a turbine blade;

Figure 10 is a schematic cross-sectional view of a magnetic bearing generator;

Figure 11 is a schematic cross-sectional view of a ring battery.

detailed description As shown in Fig. 1, a dental turbine hand-held drill is composed of a handle 1 and a handpiece 2. The turbine in the handpiece 2 is a magnet turbine 3, and the magnet turbine 3 is externally fixed to a coil 4 to constitute a generator. The generator is connected to the LED lamp 5 The LED light is placed outside the housing of the head and is located at the lower part of the head. In the figure, the head cover is at the lower part of the machine head, and the machine head cover can also be on the upper part of the machine head.

As shown in Figures 2 and 3, the axial direction of the coil 4-1 is perpendicular to the axial direction of the magnet turbine 3-1, and the direction of the central magnetic field line in the turbine is perpendicular to the axial direction of the magnet turbine. This is the easiest generator, but it is suitable for the head structure.

As shown in Fig. 4, the dental turbine handheld drill has three layers of superposition, and the three-layer magnet turbines are 3-1-1, 3-1-2, 3-1-3 respectively forming a Halbach array. This increases the magnetic flux of the plastic magnetic material in the coil.

As shown in Fig. 5, the dental turbine hand drill has two coils 4-2 disposed in the same plane, and the axial direction of the coil is parallel to the axial direction of the magnet turbine 3-2. This is the generator of the magnet and induction coil in the 02251204.

The dental turbine hand drill according to FIG. 6 is characterized in that: the axis of the coil 4-3 coincides with the axis of the magnet turbine 3-2, and the magnet turbine 3-2 and the coil 4-3 constitute a claw pole generator. component. The rest of the structure is a prior art structure and need not be described in detail.

The coil 4-3 of the claw pole generator is placed on the lower side of the magnet turbine 3-2, the claw chip 6-1 is disposed on the upper side of the coil 4-3, and the claw chip 6 is disposed on the lower side of the coil 4-3. 2. The claw chip 6-1 intersects the claw of the claw chip 6_2, and the claw chip 6-1 is connected to the center portion of the claw chip 6-2.

As shown in Figures 2, 4, 5, and 6, the dental turbine hand drill can be a metal foil placed between two bearings 7 in the nose.

The dental turbine hand drill is characterized in that: the filament of the LED lamp 5 is arranged around the axis of the magnet turbine. The dental turbine handheld drill is characterized in that: the filament of the LED lamp comprises at least two sets of LED arrays having opposite conduction directions in parallel. It is the LED array of the patent of 200510020493.

The dental turbine hand drill according to FIGS. 8 and 9 is characterized in that: the power source is a micro-generator, the turbine 3 is a magnetically permeable material, and the coil 4-3 and the magnetic ring are sequentially fixed along the turbine axial side of the turbine 3. 10. The two magnetic rings 10 are aligned along the magnetic direction of the turbine shaft to form a generator. The coil is connected to the LED lamp, and the connecting wire can be a metal foil. The magnet and the magnetic ring are permanent magnet materials.

The dental turbine hand-held drill is characterized in that: the magnetic ring has three layers of an inner magnetic ring, a middle magnetic ring and an outer magnetic ring in order from the inside to the outside, and the three-layer magnetic ring constitutes a Halbach array. The head casing at this time may be plastic, such that the magnetic lines of force gathered by the magnetic rings on one side pass through the end coils into the turbine blades, and the magnetic lines of force are emitted from the other end of the turbine blades through the end coils into the magnetic rings at the other end, the turbine The blades rotate and the coil generates current.

The dental turbine hand drill according to FIG. 10 is characterized in that: the magnetic ring is a magnetic bearing, the magnetic bearing is composed of a dynamic magnetic ring 11 and a static magnetic ring 12 which are sleeved together, and the outer surface of the dynamic magnetic ring 11 is a cone. The inner surface of the static magnetic ring 12 is a conical negative surface that cooperates with the outer surface of the dynamic magnetic ring 11, and the dynamic magnetic ring

11 and the static magnetic ring 12 are the Halbach arrays, respectively, and the two rings repel each other to form a magnetic bearing.

At this time, the nose shell may be plastic, such that the magnetic flux generated by the gap between the two rings passes through the end coil and enters the turbine blade, and the magnetic flux passes from the other end of the turbine blade through the end coil to the other end of the magnetic ring, the turbine The blades rotate and the coil generates current.

The dental turbine hand drill is characterized in that: the turbine shaft, the turbine, and the nose shell are iron. In the above, the magnetic flux lines of the magnetic ring at the other end or the magnetic lines of force generated by the gap between the two rings respectively correspond to enter The end inner magnetic ring or the dynamic magnetic ring 11, the magnetic field line is emitted from the inner magnetic ring through the air gap into the turbine shaft, or the magnetic field line is driven from the dynamic magnetic ring 11 into the turbine shaft, and the turbine shaft is sent out through the air gap into the side. The inner magnetic ring re-enters the magnetic field on one side, or the magnetic force line is sent from the turbine shaft into the one-side dynamic magnetic ring 11 to form a magnetic line circuit. Similarly, the magnetic line of the magnetic ring at the other end or the magnetic lines of force generated by the gap between the two rings respectively enters. The outer magnetic ring or the static magnetic ring 12, the magnetic field line is sent from the outer magnetic ring or the static magnetic ring 12 into the head casing, and the outer magnetic ring or the static magnetic ring 12 is sent from the head casing to the side. Magnetic or a gap between the two rings also forms a magnetic line loop.

The dental turbine hand drill is characterized in that: the turbine, the turbine shaft, and the nose shell are magnets. The magnetic direction of the magnet constitutes the above-described magnetic line circuit, in which case the turbine and the turbine shaft are magnetically opposite.

The dental turbine hand drill according to Fig. 11 is characterized in that: the power source is an annular battery 13. The dental turbine hand drill is characterized in that: the annular battery is a laminated battery.

The dental turbine hand drill is characterized in that: the electrolyte of the annular laminated battery is an edible material. Citric acid, acetic acid, and the like.

The dental turbine hand drill according to Figs. 8, 9, 10, and 11 is characterized in that a check valve 14 is disposed on the air outlet passage outside the turbine shaft.

The dental turbine handheld drill is characterized in that: the one-way valve is an elastic membrane, the outer circumference of the elastic membrane is fixed in the machine head, the elastic membrane is provided with a central hole, the diameter of the central hole is smaller than the diameter of the turbine shaft, and the turbine shaft passes through the center The hole, the elastic membrane is wrapped on the turbine shaft. When working, the elastic film is separated from the turbine shaft as shown in Fig. 11. When the work is stopped, the elastic film is wrapped on the turbine shaft as shown in Fig. 8, 9 and 10 to prevent the dirt from sucking back.

The dental turbine hand-held drill is characterized in that: the outer circumference of the elastic film is thick, gradually thinner toward the center, and the upper and lower sides of the elastic film form an angle, and a part of the surface of the elastic film is in a natural state as shown in Figs. 8, 9, 10 and the head. The inner part is separated, and in the outflow state, as shown in Fig. 11 and the inner part of the head, the part of the surface of the elastic film is out _ -

• Set the contact switch between the parts that come into contact with the internal parts of the machine head.

Claims

Claim

1. A dental turbine hand drill comprising a nose shell and a movement, the head shell being provided with a drill socket, the movement comprising a turbine and a turbine shaft, wherein: the LED socket is externally provided with an LED light, LED The lamp is connected to the power supply provided in the head casing.

2. The dental turbine hand drill according to claim 1, wherein: the power source is a micro-generator, the turbine in the head is a magnet turbine, and the magnet turbine is fixed outside the coil to form a generator; the generator is connected to the LED. The lamp, the head shell is plastic.

3. The dental turbine hand drill according to claim 2, wherein: the axial direction of the coil is perpendicular to the axial direction of the magnet turbine, and the direction of the central magnetic field line in the turbine is perpendicular to the axial direction of the magnet turbine.

4. A dental turbine hand held drill according to claim 3, wherein: said magnet turbine is a three-layer stack, and the three-layer magnet turbine forms a Halbach array.

5. A dental turbine hand held drill according to claim 4, wherein: said magnet turbine material is a plastic magnetic material.

6. A dental turbine hand held drill according to claim 2, wherein: said coil has an axial direction parallel to an axial direction of the magnet turbine.

7. The dental turbine hand drill according to claim 6, wherein: at least two of said coils are disposed on the same plane.

8. A dental turbine hand held drill according to claim 6 wherein: the axis of the coil coincides with the axis of the magnet turbine, and the magnet turbine and coil form part of the claw pole generator.

9. The dental turbine hand drill according to claim 7, wherein: the coil of the claw pole generator is placed on one side of the upper and lower sides of the magnet turbine, and the upper and lower sides of the coil are respectively provided with cross claw chips. The center of the two claw chips is connected.

10. A dental turbine hand drill according to any one of claims 2-9, wherein: said coil Claim

1 1. A dental turbine hand held drill according to any one of claims 2-9, wherein the filament of the LED lamp is arranged annularly around the axis of the magnet turbine.

12. The dental turbine hand held drill of claim 1 1 , wherein: the filament of the LED lamp comprises at least two sets of light emitting diode arrays having opposite conduction directions in parallel.

13. A dental turbine hand held drill according to claim 10, wherein: the filament of said LED lamp is disposed about the axis of the magnet turbine.

14. The dental turbine hand held drill of claim 13 wherein: said filament of said LED lamp comprises at least two sets of light emitting diode arrays having opposite conduction directions in parallel.

15. The dental turbine hand drill according to claim 1, wherein: the power source is a micro-generator, and the turbine is a magnetically permeable material, and the coil and the magnetic ring are sequentially fixed on both sides of the turbine axial turbine, and two magnetic waves. The ring 10 is aligned along the magnetic direction of the turbine shaft to form a generator.

The dental turbine hand drill according to claim 15, wherein: the magnetic ring has three layers of an inner magnetic ring, a middle magnetic ring and an outer magnetic ring in order from inner to outer, and the three-layer magnetic ring is formed. Haier Beck halbach array.

The dental turbine hand drill according to claim 15, wherein: the magnetic ring is a magnetic bearing, and the magnetic bearing is composed of a dynamic magnetic ring and a static magnetic ring that are sleeved together, and the outer surface of the dynamic magnetic ring is a cone. On the male side, the inner surface of the static magnetic ring is a conical negative surface that cooperates with the outer surface of the dynamic magnetic ring 11. The dynamic magnetic ring and the static magnetic ring are respectively Halbach arrays, and the two rings are mutually repelled to form a magnetic bearing.

The dental turbine hand drill according to claim 16 or 17, wherein the turbine shaft, the turbine, and the nose casing are iron.

The dental turbine hand drill according to claim 16 or 17, wherein: the turbine and the vortex Claim

20. The dental turbine hand held drill of claim 1 wherein: said power source is an annular battery.

A dental turbine hand drill according to claim 20, wherein: said annular battery is a laminated battery.

22. A dental turbine hand held drill according to claim 21, wherein: the electrolyte of said annular laminated battery is an edible material.

A dental turbine hand drill according to any one of claims 1 to 22, wherein a check valve is disposed on the air outlet passage outside the turbine shaft.

The dental turbine hand drill according to claim 23, wherein: the one-way valve is an elastic film, the outer periphery of the elastic film is fixed in the machine head, and the elastic film is provided with a central hole, and the diameter of the central hole is smaller than the diameter of the turbine shaft The turbine shaft passes through the center hole and the elastic membrane is wrapped around the turbine shaft.

The dental turbine hand drill according to claim 24, wherein: the elastic film is thick at the outer circumference and gradually thins toward the center, and an upper surface of the elastic film forms an angle, and a part of the surface of the elastic film is in a natural state and the inside of the machine head. The parts are separated, and the contact parts are disposed in contact with the inner parts of the head in the air outlet state, and the part of the surface of the elastic film is in contact with the inner part of the head when the air is discharged.