Simple and reliable dental implant motor

Abstract

The utility model relates to a simple and reliable motor for dental implantation. The motor comprises a shell, a motor body, a circuit board and a cable, the motor body is fixedly arranged in the shell, and a shaft of the motor body protrudes out of one end of the shell; one end, far away from the motor body shaft, of the shell is provided with a closed space, and the circuit board is fixedly arranged in the closed space; one end of the cable is connected with the circuit board and located in the closed space, a high-temperature-resistant ribbon is bound on the cable, and the other end of the cable protrudes out of the shell; and high-temperature-resistant glue is encapsulated in the closed space. According to the simple and reliable dental implant motor disclosed by the utility model, the high-temperature-resistant glue is encapsulated on the two sides of the circuit board and wraps the end part of the cable, and the end part of the cable is bound and prevented from retreating by using the high-temperature-resistant ribbon, so that the requirements of high temperature resistance and sealing performance of the tail part of the motor are met, and the motor is simple in structure, easy to install and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a simple and reliable motor for dental implants. Background Art

[0002] Dental implant motors require high-temperature, high-pressure sterilization before and after use. Therefore, the tail connectors of dental implant motors must meet high-temperature resistance and excellent sealing requirements. However, most current dental implant motors require complex components to meet these requirements, resulting in increased cost, weight, and fatigue for operators. Summary of the Invention

[0003] Based on this, the purpose of the present invention is to provide a simple and reliable motor for dental implants, which has the advantages of simple and reliable structure and low cost.

[0004] A simple and reliable motor for dental implants comprises a housing, a motor body, a circuit board and a cable; the motor body is fixedly arranged in the housing, and its shaft protrudes from one end of the housing; an enclosed space is provided at one end of the housing away from the motor body shaft, and the circuit board is fixedly arranged in the enclosed space; one end of the cable is connected to the circuit board and is located in the enclosed space, and is tied with a high-temperature resistant cable tie, and the other end of the cable protrudes from the outside of the housing; the enclosed space is filled with high-temperature resistant glue.

[0005] The simple and reliable dental implant motor described in the utility model is achieved by filling high-temperature resistant glue on both sides of the circuit board and wrapping the cable ends, and the cable ends are tied with high-temperature resistant cable ties to prevent retreat. This not only meets the high-temperature resistance and sealing requirements of the motor tail, but also makes the motor structure simple, easy to install, and low-cost.

[0006] Furthermore, the motor body includes a motor housing, a stator, a first bearing seat, a second bearing seat, a rotor and a shaft; the motor housing is fixed in the shell; the stator is fixed to the inner wall of the motor housing; the first bearing seat and the second bearing seat are respectively arranged on both sides of the stator, and their peripheries abut the inner wall of the shell; the rotor is passed through the stator, and the shaft is fixed at the center of the rotor, and the two ends of the shaft are respectively rotatably connected to the first bearing seat and the second bearing seat, and one end of the shaft protrudes from the first bearing seat.

[0007] Furthermore, it also includes a circuit board mounting seat, which is fixed to the side of the second bearing seat away from the stator, and the circuit board is fixed on the circuit board mounting seat and connected to the cable; high-temperature resistant glue is filled between the circuit board mounting seat and the end of the shell away from the motor body, and the high-temperature resistant glue is sealed and waterproof.

[0008] Furthermore, the circuit board includes a first circuit board, a second circuit board and a plurality of pins, the first circuit board is fixed on the circuit board mounting seat, and the second circuit board is located on the side of the first circuit board away from the second bearing seat; one end of the pin is welded to the first circuit board, and the other end is welded to the second circuit board, and the cable is connected to the second circuit board.

[0009] Furthermore, it also includes an inner shell and a wire grommet; the inner shell is fixedly mounted in the shell, with one end thereof abutting the circuit board and the other end thereof abutting and communicating with the wire grommet; one end of the wire grommet is fixedly mounted in the shell away from one end of the motor body, and the other end thereof protrudes from the shell; the cable is passed through the wire grommet, with one end located in the inner shell and connected to the circuit board; high-temperature resistant glue is potted between the circuit board mounting seat and the inner shell. The wire grommet increases the bending radius of the cable, making its transition natural and preventing damage to the internal wires; the high-temperature resistant glue is used for sealing and waterproofing.

[0010] Furthermore, a ridge is provided at one end of the inner shell abutting against the circuit board, and a slot is provided around the periphery of the circuit board, and the ridge is inserted into the slot for positioning to prevent it from moving.

[0011] Furthermore, the surfaces of the stator and the rotor are coated with high-temperature resistant glue; and the bearings on the first bearing seat and the second bearing seat are provided with rubber covers for sealing and waterproofing.

[0012] Furthermore, the device further includes a connecting shaft and an LED light. The connecting shaft is fixed to one end of the housing near the first bearing seat, with its periphery abutting the inner wall of the housing. The shaft passes through the first bearing seat and is inserted into the center of the connecting shaft for connection to the dental handpiece. A second sealing ring is provided between the outer periphery of the connecting shaft and the inner wall of the housing to provide a waterproof seal. The LED light is fixed to the connecting shaft and connected to the circuit board via a light cord. The LED light has an integrated structure and does not have pin contact, eliminating the risk of poor contact and increasing connection stability.

[0013] Furthermore, the housing includes a front shell and a rear shell; the front shell and rear shell are connected, the motor body, circuit board mounting seat, and circuit board are fixedly mounted in the front shell, and the inner shell, wire sheath, and one end of the cable are fixedly mounted in the rear shell; a concave-convex structure is provided at the connection between the front shell and rear shell, and the concave-convex structure is used to mate and secure the connection; a first sealing ring is clamped between the front shell and rear shell for waterproofing. The combination of the front shell and rear shell makes the motor easy to install and ensures good sealing.

[0014] Furthermore, one end of the inner shell close to the front shell protrudes from the rear shell and is provided with a glue injection port.

[0015] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a simple and reliable dental implant motor according to the present invention;

[0017] Figure 2 A cross-sectional view of the simple and reliable dental implant motor of the present application;

[0018] Figure 3 for Figure 2 A magnified view of middle A;

[0019] Figure 4 for Figure 2 Magnified view of B.

[0020] In the picture:

[0021] 1-housing; 11-front housing; 12-rear housing; 13-first sealing ring;

[0022] 2-motor body; 21-motor housing; 22-stator; 23-first bearing seat; 24-second bearing seat; 25-rotor; 26-shaft; 261-magnet;

[0023] 3-connecting shaft; 31-second sealing ring; 32-LED light;

[0024] 4-Circuit board mounting base;

[0025] 5-circuit board; 51-first circuit board; 511-pin; 52-second circuit board;

[0026] 6-magnetic encoding chip; 7-inner shell; 8-wire protection sleeve; 9-cable; 91-high temperature resistant cable tie. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] See also Figure 1 The present application provides a simple and reliable dental implant motor, comprising a housing 1, a motor body 2, a connecting shaft 3, a circuit board 5, and a cable 9. The motor body 2 is fixedly mounted in the housing 1, with the shaft 26 of the motor body 2 protruding from one end of the housing 1; the connecting shaft 3 is fixedly mounted at that end of the housing 1, with the shaft 26 of the motor body 2 inserted into the connecting shaft 3 for connection to a dental handpiece; the circuit board 5 is fixedly mounted in the housing 1 at one end of the shaft 26 away from the motor body 2; one end of the cable 9 is located in the housing 1 and connected to the circuit board 5; the other end of the cable 9 is used to connect to other equipment.

[0031] The housing 1 includes a front shell 11 and a rear shell 12. The front shell 11 and the rear shell 12 are connected, and a storage space is formed between the front shell 11 and the rear shell 12 for accommodating the motor body 2 and the circuit board 5. Furthermore, a concave-convex structure is provided at the connection between the front shell 11 and the rear shell 12, and the concave-convex structure is matched and fixedly connected. In this embodiment, an "L"-shaped ridge is provided at one end of the front shell 11, and an inverted "L"-shaped ridge is provided at one end of the rear shell 12, and the "L"-shaped ridge and the inverted "L"-shaped ridge are matched and threadedly connected. In other embodiments, the front shell 11 and the rear shell 12 are snap-fitted or adhered. Furthermore, a first sealing ring 13 is provided at the connection between the front shell 11 and the rear shell 12 for sealing to prevent water vapor from entering the storage space from the connection between the front shell 11 and the rear shell 12.

[0032] The motor body 2 includes a motor housing 21, a stator 22, a first bearing seat 23, a second bearing seat 24, a rotor 25, and a shaft 26. The motor housing 21 is fixedly mounted in the front housing 11, and the stator 22 is fixedly mounted on the inner wall of the motor housing 21. In this embodiment, the stator 22 includes a punching plate and a coil embedded in the inner side of the punching plate. The first bearing seat 23 and the second bearing seat 24 are fixedly mounted in the front housing 11, with their peripheries abutting the inner wall of the front housing 11. The first bearing seat 23 is located on the side of the stator 22 away from the rear housing 12, and the second bearing seat 24 is located on the side of the stator 22 closer to the rear housing 12. The rotor 25 is inserted into the stator 22, and the shaft 26 is fixedly mounted at the center of the rotor 25. The two ends of the shaft 26 are rotatably connected to the first bearing seat 23 and the second bearing seat 24 respectively via bearings, and protrude from the first bearing seat 23 and the outside of the front housing 11. In this embodiment, the rotor 25 is a permanent magnet. In the present application, when the rotor 25 meets the requirements of dental implantation, that is, when its limit torque is much greater than the operating torque, the diameter of the rotor 25 is appropriately reduced without affecting its use, and other corresponding components are reduced together, so that the overall diameter of the motor is smaller and the weight is lighter, which can reduce the user's fatigue after long-term operation and improve the control accuracy during operation.

[0033] Furthermore, the surfaces of the stator 22 and the rotor 25 are coated with high-temperature resistant glue to isolate them from moisture, prevent them from rusting, and increase their service life.

[0034] Furthermore, rubber covers are provided on the bearings of the first bearing seat 23 and the second bearing seat 24 to prevent water vapor from entering the bearings and causing them to rust, and the rubber cover on the bearings of the first bearing seat 23 can prevent water vapor from entering the stator 22 and the rotor 25 from the front end of the shaft 26.

[0035] The connecting shaft 3 is fixed to one end of the front housing 11 near the first bearing seat 23, with its periphery abutting the inner wall of the front housing 11. The shaft 26 of the motor body 2 passes through the first bearing seat 23 and is inserted into the center of the connecting shaft 3 for connection to the dental handpiece. Furthermore, a second sealing ring 31 is interposed between the outer circumference of the connecting shaft 3 and the inner wall of the inner housing 7 to provide a waterproof seal.

[0036] It also includes a circuit board mounting seat 4, which is fixed to the side of the second bearing seat 24 away from the stator 22 by a threaded connection. In this embodiment, the side of the second bearing seat 24 away from the stator 22 is provided with a convex edge along its periphery, and the circuit board mounting seat 4 is located in the convex edge.

[0037] In this embodiment, the circuit board 5 includes a first circuit board 51, a second circuit board 52, and a plurality of pins 511. The first circuit board 51 is fixed to the side of the circuit board mounting base 4 away from the second bearing seat 24 and is located within the raised edge. The second circuit board 52 is located on the side of the first circuit board 51 away from the circuit board mounting base 4 and abuts the end of the raised edge away from the second bearing seat 24.

[0038] A plurality of pins 511 are located between the first circuit board 51 and the second circuit board 52 , with one end of the pins 511 inserted into and soldered to the first circuit board 51 , and the other end of the pins 511 inserted into and soldered to the second circuit board 52 .

[0039] Furthermore, an LED lamp 32 is fixed to the connecting shaft 3 and connected to the second circuit board 52 via a lamp wire. In this embodiment, the LED lamp 32 is an integrated structure, without pin contact, and the welds to the lamp wire are sealed with glue, eliminating the risk of poor contact and increasing the stability of the connection between the LED lamp 32 and the second circuit board 52.

[0040] Furthermore, a sensor is included. In this embodiment, the sensor is a magnetic encoder chip 6, which is fixed to the first circuit board 51. A magnet 261 is fixed to the end of the shaft 26 near the second bearing seat 24, and the magnetic encoder chip 6 corresponds to the magnet 261. When the rotor 25 and shaft 26 rotate, the magnet 261 is radially magnetized, and the magnetic encoder chip 6 is used to identify the position of the rotor 25.

[0041] Furthermore, a sunken platform is provided at the center of one end surface of the circuit board 5 close to the second bearing seat 24 for accommodating the magnet 261 .

[0042] Furthermore, it also includes an inner shell 7 and a wire sheath 8. The inner shell 7 is fixed in the rear shell 12, and its end close to the front shell 11 abuts against the second circuit board 52, and its end away from the inner shell 7 abuts against and connects to the wire sheath 8; the end of the wire sheath 8 away from the inner shell 7 protrudes from the rear shell 12 to protect the cable 9. The cable 9 is passed through the wire sheath 8, one end of which is located in the inner shell 7 and is connected to the circuit board 5, and the other end is located outside the shell 1 for connection with other devices. In this embodiment, the wire sheath 8 is made of soft rubber with high tear resistance, good thickness and hardness, which increases the bending radius of the cable 9 near the rear shell 12, allowing the cable 9 to transition more naturally and not easily causing damage to the internal wires of the cable 9.

[0043] Furthermore, a ridge is provided at one end of the inner shell 7 that abuts against the second circuit board 52, and a slot is provided around the second circuit board 52. The ridge is inserted into the slot to achieve positioning and a firm connection between the inner shell 7 and the second circuit board 52, preventing its movement from causing damage to the components on the second circuit board 52.

[0044] Furthermore, high temperature resistant glue is poured between the circuit board mounting base 4 and the second circuit board 52 and between the second circuit board 52 and the inner shell 7 for sealing and preventing moisture from corroding the circuit board and the cable 9. In this embodiment, the high temperature resistant glue is epoxy resin.

[0045] Furthermore, one end of the inner shell 7 close to the front shell 11 protrudes from the rear shell 12 and is provided with a glue injection port; the cable 9 is tied with a high-temperature resistant cable tie 91 at one end of the inner shell 7 to prevent the cable 9 from falling out during glue injection, and the high-temperature resistant cable tie 91 is easy to use and has low cost.

[0046] The simple and reliable dental implant motor described in the utility model is achieved by filling high-temperature resistant glue on both sides of the circuit board 5 and wrapping the end of the cable 9, and the end of the cable 9 is tied with a high-temperature resistant cable tie 91 to prevent it from retreating. This not only meets the high-temperature resistance and sealing requirements of the tail of the motor, but also makes the motor structure simple, easy to install, and low in cost.

[0047] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the concept of the present invention, and the present invention is intended to encompass such modifications and variations.

Claims

1. A simple and reliable dental implant motor, characterized by: It includes a shell, a motor body, a circuit board and a cable; the motor body is fixed in the shell, and its shaft protrudes from one end of the shell; the shell is provided with a closed space at one end away from the motor body shaft, and the circuit board is fixed in the closed space; one end of the cable is connected to the circuit board and is located in the closed space, and is tied with a high-temperature resistant cable tie, and the other end protrudes from the outside of the shell; the closed space is filled with high-temperature resistant glue.

2. The simple and reliable dental implant motor according to claim 1, characterized in that: The motor body includes a motor housing, a stator, a first bearing seat, a second bearing seat, a rotor and a shaft; the motor housing is fixed in the shell; the stator is fixed to the inner wall of the motor housing; the first bearing seat and the second bearing seat are respectively arranged on both sides of the stator, and their peripheries abut the inner wall of the shell; the rotor is inserted into the stator, and the shaft is fixed at the center of the rotor. The two ends of the shaft are respectively rotatably connected to the first bearing seat and the second bearing seat, and one end of the shaft protrudes from the first bearing seat.

3. The simple and reliable dental implant motor according to claim 2, characterized in that: It also includes a circuit board mounting seat, which is fixed to the side of the second bearing seat away from the stator. The circuit board is fixed on the circuit board mounting seat and connected to the cable. High-temperature resistant glue is sealed between the circuit board mounting seat and the end of the shell away from the motor body.

4. The simple and reliable dental implant motor according to claim 3, characterized in that: The circuit board includes a first circuit board, a second circuit board and a plurality of pins. The first circuit board is fixed on the circuit board mounting seat, and the second circuit board is located on the side of the first circuit board away from the second bearing seat; one end of the pin is welded to the first circuit board, and the other end is welded to the second circuit board, and the cable is connected to the second circuit board.

5. The simple and reliable dental implant motor according to claim 3, characterized in that: It also includes an inner shell and a wire protection sleeve; the inner shell is fixed in the shell, one end of which abuts the circuit board, and the other end abuts and connects to the wire protection sleeve; one end of the wire protection sleeve is fixed in the shell away from one end of the motor body, and the other end protrudes outside the shell; the cable is passed through the wire protection sleeve, one end of which is located in the inner shell and connected to the circuit board; high-temperature resistant glue is filled between the circuit board mounting seat and the inner shell.

6. The simple and reliable dental implant motor according to claim 5, characterized in that: The inner shell is provided with a ridge at one end thereof abutting against the circuit board, and a slot is provided around the periphery of the circuit board. The ridge is inserted into the slot to position the inner shell and prevent it from moving.

7. The simple and reliable dental implant motor according to claim 2, characterized in that: The surfaces of the stator and the rotor are coated with high-temperature resistant glue; the bearings on the first bearing seat and the second bearing seat are provided with rubber covers for sealing and waterproofing.

8. The simple and reliable dental implant motor according to claim 2, characterized in that: It also includes a connecting shaft and an LED lamp. The connecting shaft is fixed to one end of the shell near the first bearing seat, and its periphery abuts the inner wall surface of the shell. The shaft passes through the first bearing seat and is inserted at the center of the connecting shaft for connection with a dental mobile phone; a second sealing ring is clamped between the outer peripheral surface of the connecting shaft and the inner wall surface of the shell for sealing and waterproofing; the LED lamp is fixed on the connecting shaft and connected to the circuit board through a lamp wire.

9. The simple and reliable dental implant motor according to claim 5, characterized in that: The shell includes a front shell and a rear shell; the front shell and the rear shell are connected, the motor body, circuit board mounting seat and circuit board are fixed in the front shell, and the inner shell, wire protection sleeve and one end of the cable are fixed in the rear shell; a concave-convex structure is provided at the connection between the front shell and the rear shell, and the concave-convex structure is used to cooperate and fix the connection; a first sealing ring is clamped between the front shell and the rear shell for sealing and waterproofing.

10. The simple and reliable dental implant motor according to claim 9, characterized in that: One end of the inner shell close to the front shell protrudes from the rear shell and is provided with a glue injection port.

Images