Hollow cup brushless motor for dental planter

Abstract

The utility model discloses a coreless brushless motor for a dental planter, which relates to the technical field of brushless motors and comprises a motor shell, a stator iron core fixed inside the motor shell and a rotor iron core mounted at the center of the stator iron core. Two ends of the rotor core are fixed through end covers sleeved on the rotating shaft, one side of one end cover is provided with a baffle plate, one side of the baffle plate is provided with a spring, and the baffle plate and the spring are sleeved on the rotating shaft. According to the utility model, the grooves corresponding to each other in position are arranged between the base and the shell, and the sealing rubber pads with the inverted-T-shaped cross sections are arranged in the grooves, so that the inverted-T-shaped sealing rubber pads can be embedded and mounted in the corresponding grooves of the base and the shell during use, and the sealing effect at the joint of the base and the shell can be greatly improved; the sealing waterproof effect of the device is effectively improved, and the practicability of the device is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to brushless motor technology field, concretely is a hollow cup brushless motor for dental implant machine. BACKGROUND

[0002] The purpose of dental implant machine motor is to provide driving force for dental handpiece, and in dental operation, doctors often use dental handpiece to carry out drilling, cutting, polishing and polishing operations on patients' teeth. These operations will produce a large amount of debris, splashing blood and other foreign matters. These foreign matters can easily enter the inside of the bending handpiece and the motor through various gaps of the bending handpiece, thereby reducing the service life of the brushless motor.

[0003] In the utility model with patent number for China CN214591026U, a hollow cup motor for dental implant machine is provided, and after studying the prior art and the above patent, it is found that the sealing effect of the existing hollow cup motor for dental implant machine needs to be improved. Therefore, the utility model provides a hollow cup brushless motor for dental implant machine. UTILITY MODEL CONTENT

[0004] TECHNICAL PROBLEM

[0005] The purpose of the utility model is to make up for the deficiency of the prior art, and provide a hollow cup brushless motor for dental implant machine.

[0006] TECHNICAL SCHEME

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hollow cup brushless motor for dental implant machine, comprising a motor shell, a stator core fixed in the inside of the motor shell, and a rotor core installed at the center of the stator core, the rotor core is installed with a rotating shaft, and the two ends of the rotor core are fixed through the end cover sleeved on the rotating shaft, one side of one end cover is provided with a baffle, one side of the baffle is provided with a spring, and the baffle and the spring are sleeved on the rotating shaft.

[0008] The motor shell is composed of a base and a shell, a groove is formed on the base, a second groove is formed in the inside of the shell, a sealing rubber pad is arranged between the groove and the second groove, the cross-sectional shape of the sealing rubber pad is in the shape of "convex", the shape composed between the groove and the second groove is matched with the sealing rubber pad, the grooves corresponding in position are arranged between the base and the shell, and the sealing rubber pad with the cross section in the shape of "convex" is arranged in the groove, when in use, the sealing rubber pad with the cross section in the shape of "convex" can be embedded and installed in the corresponding grooves of the base and the shell, so that the sealing effect of the connection between the base and the shell is greatly improved, the sealing and waterproof effect of the device is effectively improved, and the practicability of the device is enhanced.

[0009] Preferably, the inside of the base is internally provided with a first bearing, the inside of the first bearing is fixedly connected with a sleeve, one end of the rotating shaft is inserted into the inside of the sleeve, the outside of the first bearing is provided with a sealing ring, and the base and the first bearing are sealed through the sealing ring.

[0010] Preferably, one side of the shell is provided with a second bearing, and one end of the rotating shaft is mounted in the inside of the second bearing.

[0011] Preferably, the outside of one side of the stator core is sleeved with a fixed shell, one side of the fixed shell is fixedly connected with a PCB, and one side of the PCB is connected with a wire.

[0012] Preferably, one side of the base is provided with a gasket, and the inside of the base and the gasket is provided with a through hole for mounting the wire.

[0013] Preferably, one end of the spring, away from the baffle, abuts against the second bearing.

[0014] Beneficial effects:

[0015] Compared with the prior art, the hollow cup brushless motor for the dental implant machine has the following beneficial effects:

[0016] The recesses corresponding in position are arranged between the base and the shell, the sealing rubber pads with a "convex" cross section are arranged in the recesses, the sealing rubber pads with a "convex" cross section can be embedded in the recesses corresponding in position between the base and the shell, the sealing effect of the connection between the base and the shell is greatly improved, the sealing and waterproof effect of the device is effectively improved, and the practicability of the device is enhanced. ACCURATE DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a structural schematic view of the present application;

[0019] Figure 2 It is a sectional view of the present application;

[0020] Figure 3 It is a structural schematic view of the present application Figure 2 It is an enlarged schematic view of the structure at A in the present application;

[0021] Figure 4 It is a structural schematic view of the stator core and the rotor core of the present application;

[0022] Figure 5 Figure is a structural diagram of the rotor core of the utility model.

[0023] In the figure,

[0024] 1, motor housing;2, stator core;3, rotor core;4, rotating shaft;5, end cover;6, baffle;7, spring;8, fixed shell;9, PCB board;10, wire;11, gasket;12, through hole;13, sealing rubber pad;101, machine base;1011, groove;102, shell;1021, second bearing;1022, second groove;103, first bearing;104, sealing ring;105, sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a kind of hollow cup brushless motor for dental implant machine, including motor housing 1, stator core 2 fixed in the inside of motor housing 1, and rotor core 3 installed at the center of stator core 2, rotating shaft 4 is installed in rotor core 3, and the both ends of rotor core 3 are fixed by end cover 5 that is sleeved on rotating shaft 4, one side of one end cover 5 is provided with baffle 6, one side of baffle 6 is provided with spring 7, baffle 6 and spring 7 are all sleeved on rotating shaft 4, shell 102 one side is installed with second bearing 1021, one end of rotating shaft 4 is installed in the inside of second bearing 1021, and the end of spring 7 away from baffle 6 is in abutment with second bearing 1021.

[0027] The motor shell 1 of the application is composed of a base 101 and a shell 102, the base 101 is provided with a groove 1011, the shell 102 is provided with a second groove 1022, a sealing rubber 13 is arranged between the groove 1011 and the second groove 1022, the cross section of the sealing rubber 13 is in the shape of a "convex" character, the shape formed between the groove 1011 and the second groove 1022 is matched with the sealing rubber 13, the base 101 and the shell 102 are provided with corresponding grooves, and the grooves are provided with sealing rubbers in the shape of a "convex" character, and the sealing rubbers in the shape of a "convex" character can be embedded in the corresponding grooves of the base 101 and the shell 102, so that the sealing effect of the connection between the base 101 and the shell 102 is greatly improved, the sealing and waterproof effect of the device is effectively improved, and the practicability of the device is enhanced.

[0028] Please refer to Figure 2 , the first bearing 103 is arranged in the base 101, the sleeve 105 is fixedly connected to the inside of the first bearing 103, one end of the rotating shaft 4 is inserted into the inside of the sleeve 105, the sealing ring 104 is arranged outside the first bearing 103, and the base 101 and the first bearing 103 are sealed by the sealing ring 104.

[0029] Please refer to Figure 2 , Figure 4 and Figure 5 , the fixed shell 8 is sleeved outside one side of the stator core 2, the PCB board 9 is fixedly connected to one side of the fixed shell 8, the wire 10 is connected to one side of the PCB board 9, the gasket 11 is arranged on one side of the base 101, and the through hole 12 for arranging the wire 10 is arranged in the base 101 and the gasket 11.

[0030] Working principle: the base 101 and the shell 102 are provided with corresponding grooves, and the grooves are provided with sealing rubbers in the shape of a "convex" character, and the sealing rubbers in the shape of a "convex" character can be embedded in the corresponding grooves of the base 101 and the shell 102, so that the sealing effect of the connection between the base 101 and the shell 102 is greatly improved.

[0031] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hollow cup brushless motor for a dental implant machine, comprising a motor housing (1), a stator core (2) fixed inside the motor housing (1), and a rotor core (3) installed at the center of the stator core (2), characterized in that: The rotor core (3) is internally provided with a rotating shaft (4), and the two ends of the rotor core (3) are fixed by end covers (5) sleeved on the rotating shaft (4), one side of one of the end covers (5) is provided with a baffle (6), one side of the baffle (6) is provided with a spring (7), and the baffle (6) and the spring (7) are sleeved on the rotating shaft (4); The motor shell (1) is composed of a base (101) and a shell (102), the base (101) is provided with a groove (1011), the shell (102) is internally provided with a second groove (1022), a sealing rubber pad (13) is arranged between the groove (1011) and the second groove (1022), the cross-sectional shape of the sealing rubber pad (13) is in the shape of a "convex" character, and the shape formed between the groove (1011) and the second groove (1022) is adapted to the sealing rubber pad (13).

2. A hollow cup brushless motor for a dental implant unit according to claim 1, characterized in that: The inside of the base (101) is internally provided with a first bearing (103), the inside of the first bearing (103) is fixedly connected with a sleeve (105), one end of the rotating shaft (4) is inserted into the inside of the sleeve (105), and the outside of the first bearing (103) is provided with a sealing ring (104).

3. A hollow cup brushless motor for dental implant unit according to claim 1, characterized in that: The shell (102) is internally provided with a second bearing (1021), and one end of the rotating shaft (4) is installed in the inside of the second bearing (1021).

4. The hollow cup brushless motor for dental implant unit according to claim 1, wherein: The outside of one side of the stator core (2) is sleeved with a fixed shell (8), one side of the fixed shell (8) is fixedly connected with a PCB board (9), and one side of the PCB board (9) is connected with a wire (10).

5. The hollow cup brushless motor for dental implant unit according to claim 1, wherein: The end of the spring (7) away from the baffle (6) abuts against the second bearing (1021).

6. A hollow cup brushless motor for a dental implant unit according to claim 1, characterized in that: One side of the base (101) is provided with a gasket (11), and the inside of the base (101) and the gasket (11) is internally provided with a through hole (12) for installing the wire (10).

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